UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 

FORM 10-Q

x    QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D)15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended SeptemberJune 30, 20172018
o    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D)15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from ________ to ________

Commission file number 000-50368

atsglogocolora24.jpg
(Exact name of registrant as specified in its charter)

Delaware 26-1631624
(State of Incorporation) (I.R.S. Employer Identification No.)
   
145 Hunter Drive, Wilmington, OH 45177
(Address of Principal Executive Offices) (Zip Code)

937-382-5591
(Registrant’s telephone number, including area code)
 


Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. YES x NO o
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulations S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). YES x NO o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer ox
  
Accelerated filer xo
Non-accelerated filer o (Do not check if a smaller reporting company)
  
Smaller reporting company o
Emerging growth company o
  
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. o
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). YES o NO  x
As of November 9, 2017, 59,121,112August 8, 2018, 59,080,387 shares of the registrant’s common stock, par value $0.01, were outstanding.

     







AIR TRANSPORT SERVICES GROUP, INC. AND SUBSIDIARIES
FORM 10-Q
TABLE OF CONTENTS
    
    Page
PART I. FINANCIAL INFORMATION
Item 1.  
   
   
   
   
   
Item 2. 
Item 3. 
Item 4. 
   
PART II. OTHER INFORMATION
Item 1.  
Item 1A.  
Item 2.  
Item 5.  
Item 6.  





FILINGS WITH THE SECURITIES AND EXCHANGE COMMISSION
The financial information, including the financial statements, included in the Quarterly Report on Form 10-Q should be read in conjunction with the Company's audited consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2016,2017, filed with the Securities and Exchange Commission on March 8, 2017.1, 2018.
The Securities and Exchange Commission maintains an Internet site that contains reports, proxy and information statements and other information regarding Air Transport Services Group, Inc. at www.sec.gov. Additionally, our filings with the Securities and Exchange Commission, including annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to these reports, are available free of charge from our website at www.atsginc.com as soon as reasonably practicable after filing with the SEC.

FORWARD LOOKING STATEMENTS
Statements contained in this Quarterly report on Form 10-Q that are not historical facts are considered forward-looking statements (as that term is defined in the Private Securities Litigation Reform Act of 1995). Words such as “projects,“future,” “anticipates,” “believes,” “anticipates,“estimates,” “expects,” “intends,” “plans,” “predicts,” “will,” “estimates,“would,“plans,“could,“expects,“can,“intends”“may,” and similar wordsterms and expressions are intended to identify forward-looking statements. These forward-looking statements are based on expectations, estimates and projections as of the date of this filing, and involve risks and uncertainties that are inherently difficult to predict. Actual results may differ materially from those expressed in the forward-looking statements for any number of reasons, including those described in this report and in our 20162017 Annual Report filed on Form 10-K with the Securities and Exchange Commission.





PART I. FINANCIAL INFORMATION
Item 1. Financial Statements
AIR TRANSPORT SERVICES GROUP, INC. AND SUBSIDIARIES
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(In thousands, except per share data)
Three Months Ended Six Months Ended
Three Months Ended September 30, Nine Months Ended September 30,June 30, June 30,
2017 2016 2017 20162018 2017 2018 2017
REVENUES$254,101
 $193,261
 $745,229
 $547,195
$203,607
 $253,211
 $406,647
 $491,128
OPERATING EXPENSES              
Salaries, wages and benefits66,706
 59,405
 205,379
 165,471
74,049
 65,833
 144,832
 138,319
Depreciation and amortization37,605
 33,939
 111,828
 99,605
41,620
 37,781
 81,624
 74,223
Maintenance, materials and repairs33,100
 30,196
 100,970
 90,968
36,817
 37,588
 73,683
 67,870
Fuel34,035
 24,372
 101,134
 58,171
5,913
 32,258
 11,701
 67,099
Contracted ground and aviation services40,445
 12,865
 93,283
 32,664
2,444
 32,151
 4,828
 52,838
Travel6,357
 5,440
 20,543
 14,926
7,288
 6,820
 13,920
 14,186
Landing and ramp4,682
 3,220
 14,338
 9,523
1,311
 4,357
 2,459
 9,656
Rent3,052
 3,309
 10,091
 8,515
3,760
 3,753
 6,990
 7,039
Insurance1,234
 1,099
 3,451
 3,335
1,420
 955
 2,777
 2,217
Other operating expenses7,962
 4,960
 24,588
 18,409
5,087
 8,590
 12,292
 16,626
235,178
 178,805
 685,605
 501,587
179,709
 230,086
 355,106
 450,073
OPERATING INCOME18,923
 14,456
 59,624
 45,608
23,898
 23,125
 51,541
 41,055
OTHER INCOME (EXPENSE)              
Interest income37
 37
 85
 98
54
 16
 77
 48
Net loss on financial instruments(34,433) (8,473) (100,213) (3,443)
Charges from non-consolidated affiliate(945) 
 (945) 
Non-service component of retiree benefit costs2,045
 (177) 4,090
 (354)
Net gain (loss) on financial instruments11,697
 (67,649) 10,812
 (65,780)
Loss from non-consolidated affiliate(2,417) 
 (4,953) 
Interest expense(4,351) (2,897) (11,658) (8,229)(5,366) (3,759) (10,728) (7,307)
(39,692) (11,333) (112,731) (11,574)6,013
 (71,569) (702) (73,393)
              
EARNINGS (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES(20,769) 3,123
 (53,107) 34,034
29,911
 (48,444) 50,839
 (32,338)
INCOME TAX EXPENSE(7,460) (1,007) (19,244) (12,219)(5,447) (5,474) (10,693) (11,784)
EARNINGS (LOSS) FROM CONTINUING OPERATIONS(28,229) 2,116
 (72,351) 21,815
24,464
 (53,918) 40,146
 (44,122)
EARNINGS (LOSS) FROM DISCONTINUED OPERATIONS, NET OF TAXES(4,655) 47
 (4,271) 141
EARNINGS FROM DISCONTINUED OPERATIONS, NET OF TAXES170
 192
 366
 384
NET EARNINGS (LOSS)$(32,884) $2,163
 $(76,622) $21,956
$24,634
 $(53,726) $40,512
 $(43,738)
              
BASIC EARNINGS (LOSS) PER SHARE              
Continuing operations$(0.48) $0.04
 $(1.23) $0.35
$0.42
 $(0.91) $0.68
 $(0.75)
Discontinued operations(0.08) 
 (0.07) 

 
 0.01
 0.01
TOTAL BASIC EARNINGS (LOSS) PER SHARE$(0.56) $0.04
 $(1.30) $0.35
$0.42
 $(0.91) $0.69
 $(0.74)
              
DILUTED EARNINGS (LOSS) PER SHARE              
Continuing operations$(0.48) $0.04
 $(1.23) $0.34
$0.21
 $(0.91) $0.48
 $(0.75)
Discontinued operations(0.08) 
 (0.07) 

 
 
 0.01
TOTAL DILUTED EARNINGS (LOSS) PER SHARE$(0.56) $0.04
 $(1.30) $0.34
$0.21
 $(0.91) $0.48
 $(0.74)
              
WEIGHTED AVERAGE SHARES              
Basic58,733
 59,379
 58,965
 62,084
58,739
 59,035
 58,790
 59,084
Diluted58,733
 60,283
 58,965
 64,024
68,363
 59,035
 68,784
 59,084

See notes to condensed consolidated financial statements.

AIR TRANSPORT SERVICES GROUP, INC. AND SUBSIDIARIES
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(In thousands)
 Three Months Ended Nine Months Ended
 September 30, September 30,
 2017 2016 2017 2016
NET EARNINGS (LOSS)$(32,884) $2,163
 $(76,622) $21,956
OTHER COMPREHENSIVE INCOME:       
Defined benefit pension5,763
 2,146
 8,232
 6,438
Defined benefit post-retirement37
 9
 111
 27
Foreign currency translation(15) (256) 121
 54
        
TOTAL COMPREHENSIVE INCOME (LOSS), NET OF TAXES$(27,099) $4,062
 $(68,158) $28,475
 Three Months Ended Six Months Ended
 June 30 June 30
 2018 2017 2018 2017
NET EARNINGS (LOSS)$24,634
 $(53,726) $40,512
 $(43,738)
OTHER COMPREHENSIVE INCOME (LOSS):       
Defined Benefit Pension687
 1,235
 1,374
 2,469
Defined Benefit Post-Retirement42
 37
 84
 74
Foreign Currency Translation(123) 99
 (139) 136
        
TOTAL COMPREHENSIVE INCOME (LOSS), net of tax$25,240
 $(52,355) $41,831
 $(41,059)

See notes to condensed consolidated financial statements.


AIR TRANSPORT SERVICES GROUP, INC. AND SUBSIDIARIES
UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS
(In thousands, except share data)
September 30, December 31,June 30, December 31,
2017 20162018 2017
ASSETS      
CURRENT ASSETS:      
Cash and cash equivalents$53,891
 $16,358
$31,704
 $32,699
Accounts receivable, net of allowance of $1,352 in 2017 and $1,264 in 201665,563
 77,247
Accounts receivable, net of allowance of $1,130 in 2018 and $2,445 in 2017100,805
 109,114
Inventory17,282
 19,925
24,147
 22,169
Prepaid supplies and other23,699
 19,123
13,017
 20,521
TOTAL CURRENT ASSETS160,435
 132,653
169,673
 184,503
Property and equipment, net1,111,201
 1,000,992
1,200,997
 1,159,962
Lease incentive84,910
 54,730
72,232
 80,684
Goodwill and acquired intangibles45,317
 45,586
43,999
 44,577
Convertible note hedges60,605
 

 53,683
Other assets24,435
 25,369
30,573
 25,435
TOTAL ASSETS$1,486,903
 $1,259,330
$1,517,474
 $1,548,844
LIABILITIES AND STOCKHOLDERS’ EQUITY      
CURRENT LIABILITIES:      
Accounts payable$75,820
 $60,704
$85,691
 $99,728
Accrued salaries, wages and benefits30,260
 37,044
34,189
 40,127
Accrued expenses10,745
 10,324
10,833
 10,455
Current portion of debt obligations19,247
 29,306
14,860
 18,512
Unearned revenue29,186
 18,407
15,022
 15,850
TOTAL CURRENT LIABILITIES165,258
 155,785
160,595
 184,672
Long term debt473,924
 429,415
505,853
 497,246
Note conversion obligations61,230
 
Convertible note obligations
 54,359
Stock warrant obligations229,965
 89,441
203,426
 211,136
Post-retirement obligations72,876
 77,713
53,032
 61,355
Other liabilities48,039
 52,542
45,417
 45,353
Deferred income taxes143,337
 122,532
113,571
 99,444
TOTAL LIABILITIES1,194,629
 927,428
1,081,894
 1,153,565
Commitments and contingencies (Note H)
 

 
STOCKHOLDERS’ EQUITY:      
Preferred stock, 20,000,000 shares authorized, including 75,000 Series A Junior Participating Preferred Stock
 

 
Common stock, par value $0.01 per share; 85,000,000 shares authorized; 59,123,112 and 59,461,291 shares issued and outstanding in 2017 and 2016, respectively591
 595
Common stock, par value $0.01 per share; 110,000,000 shares authorized; 59,080,387 and 59,057,195 shares issued and outstanding in 2018 and 2017, respectively591
 591
Additional paid-in capital471,950
 443,416
469,412
 471,456
Accumulated deficit(108,865) (32,243)
Retained earnings (accumulated deficit)27,278
 (13,748)
Accumulated other comprehensive loss(71,402) (79,866)(61,701) (63,020)
TOTAL STOCKHOLDERS’ EQUITY292,274
 331,902
435,580
 395,279
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY$1,486,903
 $1,259,330
$1,517,474
 $1,548,844
      
See notes to condensed consolidated financial statements.

AIR TRANSPORT SERVICES GROUP, INC. AND SUBSIDIARIES
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands)
Nine Months EndedSix Months Ended
September 30,June 30
2017 20162018 2017
OPERATING ACTIVITIES:      
Net earnings (loss) from continuing operations$(72,351) $21,815
$40,146
 $(44,122)
Net earnings (loss) from discontinued operations(4,271) 141
Net earnings from discontinued operations366
 384
Adjustments to reconcile net earnings to net cash provided by operating activities:      
Depreciation and amortization121,589
��101,971
94,270
 80,097
Pension and post-retirement18,916
 10,146
1,884
 3,990
Deferred income taxes15,986
 12,057
10,475
 11,454
Amortization of stock-based compensation2,648
 2,248
2,304
 1,710
Net loss on financial instruments100,213
 3,443
Net (gain) loss on financial instruments(10,812) 65,780
Changes in assets and liabilities:      
Accounts receivable11,770
 2,750
11,006
 1,905
Inventory and prepaid supplies(2,661) (4,203)3,433
 (1,822)
Accounts payable11,698
 726
(2,067) 14,244
Unearned revenue6,995
 (2,883)(1,504) 1,807
Accrued expenses, salaries, wages, benefits and other liabilities(7,357) 4,267
(3,406) (6,793)
Pension and post-retirement assets(10,658) (10,551)(8,323) (5,847)
Other(1,244) 1,670
4,211
 1,991
NET CASH PROVIDED BY OPERATING ACTIVITIES191,273
 143,597
141,983
 124,778
INVESTING ACTIVITIES:      
Capital expenditures(218,759) (182,106)(150,816) (144,325)
Proceeds from property and equipment9
 7
17,452
 
Acquisitions and investments in businesses(6,900) 
(5,150) (646)
Redemption of long term deposits9,975
 

 9,975
NET CASH (USED IN) INVESTING ACTIVITIES(215,675) (182,099)(138,514) (134,996)
FINANCING ACTIVITIES:      
Principal payments on long term obligations(250,131) (23,623)(29,140) (20,500)
Proceeds from borrowings90,000
 155,000
30,000
 90,000
Proceeds from convertible notes258,750
 
Payments for financing costs(6,469) 
(414) 
Purchase convertible note hedges(56,097) 
Proceeds from issuance of warrants38,502
 
Purchase of common stock(11,184) (62,155)(3,581) (11,184)
Withholding taxes paid for conversion of employee stock awards(1,436) (1,231)(1,329) (1,436)
NET CASH PROVIDED BY FINANCING ACTIVITIES61,935
 67,991
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES(4,464) 56,880
      
NET INCREASE IN CASH AND CASH EQUIVALENTS37,533
 29,489
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS(995) 46,662
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR16,358
 17,697
32,699
 16,358
CASH AND CASH EQUIVALENTS AT END OF PERIOD$53,891
 $47,186
$31,704
 $63,020
      
SUPPLEMENTAL CASH FLOW INFORMATION:      
Interest paid, net of amount capitalized$11,229
 $7,793
$6,450
 $7,101
Federal alternative minimum and state income taxes paid$1,285
 $761
$806
 $1,220
SUPPLEMENTAL NON-CASH INFORMATION:      
Accrued capital expenditures$12,561
 $19,721
$18,755
 $12,615
See notes to condensed consolidated financial statements.

AIR TRANSPORT SERVICES GROUP, INC. AND SUBSIDIARIES
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

NOTE A—SUMMARY OF FINANCIAL STATEMENT PREPARATION AND SIGNIFICANT ACCOUNTING POLICIES

Nature of Operations
Air Transport Services Group, Inc. is a holding company whose principal subsidiaries include an aircraft leasing companyprimarily operate within the airfreight and two U.S. certificated airlines.logistics industry. The Company leases aircraft and provides airline operations, ground services, aircraft leases, aircraftmodification and maintenance services and other support services primarily to the cargo transportation and package delivery industries. Through theservices. The Company's subsidiaries it offersoffer a range of complementary services to delivery companies, freight forwarders, airlines and government customers.
The Company's leasing subsidiary, Cargo Aircraft Management, Inc. (“CAM”), leases aircraft to each of the Company's airlines as well as to non-affiliated airlines and other lessees. The airlines, ABX Air, Inc. (“ABX”) and Air Transport International, Inc. (“ATI”), each have the authority, through their separate U.S. Department of Transportation ("DOT") and Federal Aviation Administration ("FAA") certificates, to transport cargo worldwide. ATI provides passenger transportation, primarily to the U.S. Military, using "combi" aircraft, which are certified to carry passengers as well as cargo on the main deck.
The Company provides air transportation services to a concentrated base of customers. The Company providesCompany's airlines provide a combination of aircraft, crews, maintenance and insurance services for a customer's transportation network through "CMI" and "ACMI" agreements and through charter contracts in which aviation fuel is also included. In additionATI provides passenger transportation, primarily to the U.S. Military, using "combi" aircraft, which are certified to carry passengers as well as cargo on the main deck. Through its airline operationssubsidiary Airborne Maintenance and aircraft leasing services,Engineering Services, Inc. ("AMES"), the Company sells aircraft parts, provides aircraft maintenance and modification services,services. In addition, the Company provides ground equipment maintenance services, and operates mail and package sorting facilities.
Basis of Presentation
The accompanying unaudited condensed interim consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States of America and such principles are applied on a basis consistent with the financial statements reflected in our Annual Report on Form 10-K for the fiscal year ended December 31, 20162017 filed with the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to the rules and regulations promulgated by the SEC related to interim financial statements. In the opinion of management, the accompanying financial statements contain all adjustments, including normal recurring adjustments, necessary for the fair presentation of the Company’s results of operations and financial position for the periods presented. Due to seasonal fluctuations, among other factors common to the air cargo industry, the results of operations for the periods presented are not necessarily indicative of the results of operations to be expected for the entire year or any interim period. The preparation of consolidated financial statements requires management to make estimates and assumptions that affect amounts reported in the consolidated financial statements. The accounting estimates reflect the best judgment of management, but actual results could differ materially from those estimates.
The accompanying condensed consolidated financial statements include the accounts of Air Transport Services Group, Inc. and its wholly-owned subsidiaries. Investments in an affiliateaffiliates in which the Company has significant influence but does not exercise control are accounted for using the equity method of accounting. Using the equity method, the Company’s share of the nonconsolidated affiliate'saffiliates' income or loss is recognized in the consolidated statement of earnings and cumulative post-acquisition changes in the investment are adjusted against the carrying amount of the investment. Inter-company balances and transactions are eliminated.
New Accounting PronouncementsStandards Updates
In May 2014,Effective January 1, 2018 the Company adopted the Financial Accounting Standards BoardBoard's ("FASB") issued Accounting Standards Update ("ASU") No. 2014-09, “Revenue from Contracts with Customers (Topic 606)” (“ASU 2014-09”("Topic 606”). In April 2016, the FASB issued ASU No. 2016-10, "Revenue from Contracts with Customers, Identifying Performance Obligations and

Licensing" clarifying the accounting under ASU 2014-09 for licenses of intellectual property and for identifying distinct performance obligations in a contract.
ASU 2014-09 which superseded previous revenue recognition guidance. Topic 606 is a comprehensive new revenue recognition model that requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. ASU 2014-09 also requires additional disclosure aboutThe Company's lease revenues within the nature, amount, timing and uncertaintyscope of revenue and cash flows arisingASC 840, Leases, are specifically excluded from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. ASU 2014-09 is effective for annual reporting periods beginning after December 15, 2017 with earlier adoption permitted for reporting periods beginning after December 15, 2016. ASU 2014-09 may be appliedTopic 606.

The Company adopted the standard using either a full retrospective approach, under which all years included in the financial statements will be presented under the revised guidance, or a modified retrospective approach, under which financial statements will beare prepared under the revised guidance for the year of adoption, but not for prior years. Under the latterthis method, entities would recognize a cumulative catch-up adjustment to the opening balance of retained earnings at the effective date for contractsopen contract performance at that still require performance bytime. The Company's adoption efforts included the entity, and disclose all line items inidentification of revenue within the yearscope of adoption as if they were prepared under the old revenue guidance.
The Company plans to adopt the standard, using the modified retrospective method. The Company is currently evaluatingevaluation of customer contracts in conjunction with new guidance and an assessment of the effectqualitative and quantitative impacts of the new standard is expected to have on the Company's consolidatedits financial position, results of operations, cash flows and related disclosures.statements. The evaluation includesincluded the application of each of the five steps identified in the ASU 2014-09Topic 606 revenue recognition model, whichmodel.
The Company determined that under Topic 606, it is an agent for aviation fuel and certain other costs reimbursed by customers under its ACMI and CMI contracts and for certain cargo handling services that it arranges for a customer. Under the new revenue standard, such reimbursed amounts are as follows: 1) identifyreported net of the contract withcorresponding expenses beginning in 2018. This application of Topic 606 did not have a material impact on the customer; 2) identify the performance obligationsCompany's reported earnings in the contract; 3) determine the transaction price; 4) allocate the transaction price to the performance obligations; and 5) recognize revenue when (or as) performance obligations are satisfied. The Company's lease contracts within the scope of ASC 840, Leases, are specifically excluded from ASU 2014-09. Asany period. Additionally under Topic 606, the Company completes its evaluationis required to record revenue over time, instead of at the time of completion, for certain customer contracts for airframe and modification services that do not have an alternative use and for which the Company has an enforceable right to payment during the service cycle. The Company adopted the provisions of this new standard new information may ariseusing the modified retrospective method which requires the Company to record a one time adjustment to retained deficit for the cumulative effect that could change the Company's current understandingstandard has on open contracts at the time of adoption. Upon adoption of the impactnew standard the Company accelerated $3.6 million of revenue resulting in an immaterial adjustment to revenueits January 1, 2018 retained deficit for open airframe and expense recognized. Management is monitoring recent industry activities and other guidance provided by regulators, standards setters, andmodification services contracts.
In January 2017, the accounting profession that may impact the Company's recognition of revenue.
In July 2015, FASB issued ASU "Inventory"Intangibles-Goodwill and Other (Topic 330)350): Simplifying the MeasurementTest for Goodwill Impairment" (“ASU 2017-04”). This new standard eliminates Step 2 from the goodwill impairment test and requires an entity to perform its goodwill impairment test by comparing the fair value of Inventory" ("a reporting unit with its carrying amount. An entity recognizes an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. ASU 2015-11"). ASU 2015-11 more closely aligns2017-04 is effective for any annual or interim goodwill impairment tests in the measurement of inventory in GAAP with the measurement of inventory in International Financial Reporting Standards ("IFRS"). The amendment in ASU 2015-11 is for fiscal years beginning after December 15, 2016,2019 and interim periods within fiscal years beginning after December 15, 2017. The amendment shouldmust be applied prospectively with earlier applicationprospectively. Early adoption is permitted as of the beginning of anfor interim or annual reporting period.goodwill impairment tests performed on testing dates after January 1, 2017. The Company doesadopted this new accounting guidance in January of 2018. The adoption did not expect thehave an impact of adopting ASU 2015-11 to be material toon the Company's financial statements and related disclosures.position, results of operations, or cash flows.
In March 2017, the FASB issued ASU "Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost" (ASUCost "(ASU 2017-07"). ASU 2017-07 requires an employer to report the service cost component of retiree benefits in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net benefit cost wouldare required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented. The standard is effective for annual periods beginning after December 15, 2017 and should be applied retrospectively.operations. The Company anticipatesadopted ASU 2017-07 on January 1, 2018, retrospectively to all periods presented. As a result, retiree benefit plan interest expense, investment returns, settlements and other non-service cost components of retiree benefit expenses are excluded from the standard will impact the Operating IncomeCompany's operating income subtotal as reported in the Company's Consolidated Statement of Operations, by excluding interest expense, investment returns and other non service cost components ofbut remain included in earnings before income taxes. Information about retiree benefit expenses. Information aboutplans' interest expense, investment returns and other components of retiree benefit expenses can be found in Note I.
In February 2016, the FASB issued ASU "Leases (Topic 842)" ("ASU 2016-02"), which will require the recognition of right to-use-assets and lease liabilities for leases previously classified as operating leases by lessees. The standard will take effect for annual reporting periods beginning after December 15, 2018, including interim reporting periods. Early application will be permitted for all entities. In addition, the FASB has decided to require a lessee to apply a modified retrospective transition approach for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements (the date of initial application). The modified retrospective approach would not require any transition accounting for leases that expired before the date of initial application. The FASB decided to not permit a full retrospective transition approach. The Company is currently evaluating the impact of the standard on its financial statements and disclosures.

In August 2016,February 2018, the FASB issued ASU "Statement of Cash Flows (Topic 230): Classification“Reclassification of Certain Cash Receipts and Cash Payments"Tax Effects From Accumulated Other Comprehensive Income" ("ASU 2016-15"2018-02"). ASU 2016-15 clarifies how cash receipts2018-02 amends ASC 220, Income Statement — Reporting Comprehensive Income, to allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from U.S. federal tax legislation known as the Tax Cuts and cash payments inJobs Act. In addition, under the ASU 2018-02, a Company will be required to provide certain transactions are presented and classified in the statement of cash flows. Thedisclosures regarding stranded tax effects. ASU 2018-02 is effective date of this update is for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years, beginning after December 15, 2017, with earlyyears. Early adoption permitted. The update requires retrospective application to all periods presented but may be applied prospectively if retrospective application is impracticable. The Company is currently evaluating the impact of the adoption of the standard on its financial statements and disclosures.
In November 2016, the FASB issued ASU "Statement of Cash Flows (Topic 230): Restricted Cash" ("ASU 2016-18"). ASU 2016-18 requires that the statement of cash flows explain the changes in the combined total of restricted and unrestricted cash balance. Amounts generally described as restricted cash or restricted cash equivalents will be combined with unrestricted cash and cash equivalents when reconciling the beginning and end of period balances on the statement of cash flows. Further, the ASU requires a reconciliation of balances from the statement of cash flows to the balance sheet in situations in which the balance sheet includes more than one line item of cash, cash equivalents, and restricted cash. Companies will also be disclosing the nature of the restrictions. ASU 2016-18 is effective for financial statements issued for fiscal years beginning after December 15, 2017.permitted. The Company is currently evaluating the impact of the standard on its financial statements and disclosures.
In January 2017,June 2018, the FASB issued ASU "Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment"“Improvements to Non-employee Share-based Payment Accounting" ("ASU 2017-04"2018-07"). ASU 2017-04 will2018-07 amends ASC 718, "Compensation - Stock Compensation" ("ASC 718"), to simplify the subsequent measurement of goodwill by eliminating the second step from the goodwill impairment test.accounting for share-based payments granted to non-employees for goods and services. ASU 2017-04 would require applying a one-step quantitative test and recording the amount of goodwill impairment as the excess2018-07 supersedes ASC 505-50, "Equity-Based Payments to Non-employees" ("ASC 505-50"). ASU 2018-07 aligns much of the reporting unit's carrying value over its fair value, notaccounting for share-based payments granted to exceednon-employees for goods and services with the total amount of goodwill allocatedaccounting for share-based payments granted to the reporting unit.employees. ASU 2017-04 does not amend the optional qualitative assessment of goodwill impairment. The amendments in ASU 2017-04 are2018-07 is effective for annual or any interim goodwill impairment tests for fiscal years beginning after December 15, 2019.2018, and interim periods within those fiscal years. Early adoption is permittedpermitted. Companies will apply the new guidance to equity-classified non-employee awards for interim orwhich a measurement date has not been established and liability-classified non-employee awards that have not been settled as of the date of adoption by recognizing a cumulative-effect adjustment to retained earnings as of the beginning of the annual goodwill impairment tests performed on testing dates after January 1, 2017.period of adoption. The Company is currently evaluating the impact of the standard on its financial statements and disclosures.

NOTE B—SIGNIFICANT CUSTOMERS
DHL
The Company has had long term contracts with DHL Network Operations (USA), Inc. and its affiliates ("DHL") since August 2003. Revenues from aircraft leases and related services performed for DHL were approximately 25%28% and 25%28% of the Company's consolidated revenues from continuing operations for the three and ninesix month periods ending SeptemberJune 30, 2017,2018, respectively, compared to 34%25% and 35%26% for the corresponding periods of 2016.2017. Revenues excluding directly reimbursed expenses from continuing operations performed for DHL comprised approximately 30% and 30% of the Company's consolidated revenues from continuing operations for the three and six month periods ending June 30, 2017. The Company’s balance sheets include accounts receivable with DHL of $3.7$10.7 million and $7.3$15.7 million as of SeptemberJune 30, 20172018 and December 31, 2016,2017, respectively.
The Company leases 16 Boeing 767 aircraft to DHL under both long-term and short-term lease agreements. Under a separate crew, maintenance and insurance (“CMI”) agreement, the Company operates Boeing 767 aircraft that DHL leases from the Company. Pricing for services provided through the CMI agreement is based on pre-defined fees, scaled for the number of aircraft operated and the number of flight crews provided to DHL for its U.S. network. The Company provides DHL with scheduled maintenance services for aircraft that DHL leases. The Company also provides Boeing 767 and Boeing 757 air cargo transportation services for DHL through additional ACMI agreements in which the Company provides the aircraft, crews, maintenance and insurance under a single contract. Revenues generated from the ACMI agreements are typically based on hours flown and a contracted minimum number of block hours.flown. The Company also provides ground equipment, such as power units, air starts and related maintenance services to DHL under separate agreements.
Amazon
The Company has been providing freighter aircraft and services for cargo handling and logistical support for Amazon.com Services, Inc. ("ASI"), successor to Amazon Fulfillment Services, Inc. ("AFS"), a subsidiary of Amazon.com, Inc. ("Amazon") since September 2015. On March 8, 2016, the Company entered into an Air Transportation Services Agreement (the “ATSA”) with AFSASI, pursuant to which CAM will leaseleases 20 Boeing 767 freighter aircraft to AFS,ASI, including 12 Boeing 767-200 freighter aircraft for

a term of five years and eight Boeing 767-300 freighter aircraft for a term of seven years. The ATSA which has a term of five years, also provides for the operation of those aircraft by the Company’s airline subsidiaries, and the performancemanagement of hub and gatewayground services by the Company's subsidiary LGSTX Services Inc. ("LGSTX"). The ATSA became effective on April 1, 2016 and has a term of five years. CAM owns all 20 of the Boeing 767 aircraft that are leased and operated under the ATSA. The ATSA became effective on April 1, 2016. As of September 30, 2017, the Company has met its 20 aircraft commitment.

Revenues from aircraft leases and related servicescontinuing operations performed for AFSAmazon comprised approximately 45%29% and 42%29% of the Company's consolidated revenues from continuing operations for the three and ninesix month periods ending SeptemberJune 30, 20172018, respectively, compared to 31%42% and 24%41% for the corresponding periods of 2016.2017. Revenues excluding directly reimbursed expenses from continuing operations performed for Amazon comprised approximately 26% and 26% of the Company's consolidated revenues from continuing operations for the three and six month period ending June 30, 2017. The Company’s balance sheets include accounts receivable with AFSAmazon of $25.9$34.5 million and $24.6$44.2 million as of SeptemberJune 30, 20172018 and December 31, 2016,2017, respectively.
In conjunction with the execution of the ATSA, the Company and Amazon entered into an Investment Agreement and a Stockholders Agreement on March 8, 2016. The Investment Agreement calls for the Company to issue warrants in three tranches which will grant Amazon the right to acquire up to 19.9% of the Company’s outstanding common shares as described below. The first tranche of warrants, issued upon the execution of the Investment Agreement and all of which are now fully vested, granted Amazon the right to purchase approximately 12.81 million ATSG common shares, with the right to purchasefirst 7.69 million common shares vesting upon issuance on March 8, 2016, and the right to purchase the remaining 5.12 million common shares vesting as the Company delivered additional aircraft leased under the ATSA, or as the Company achieved specified revenue targets in connection with the ATSA. The second tranche of warrants, which were issued and vested on March 8, 2018, grants Amazon athe right to purchase approximately 1.59 million ATSG common shares, and will be issued and vest on March 8, 2018.shares. The third tranche of warrants will be issued and vest on September 8, 2020. The third tranche of warrants2020, and will grant Amazon the right to purchase such additional number of ATSG common shares as is necessary to bring Amazon’s ownership to 19.9% of the Company’s pre-transaction outstanding common shares measured on a GAAP-diluted basis, adjusted for share issuances and repurchases by the Company following the date of the Investment Agreement and after giving effect to the warrants granted. The exercise price of the warrants will beis $9.73 per share, which represents the closing price of ATSG’s common shares on February 9, 2016. Each of the three tranches of warrants will beare exercisable in accordance with its terms through March 8, 2021. The Company anticipates making available the common shares required for the underlying warrants through a combination of share repurchases and the issuance of additional shares.
The Company’s accounting for the warrants has been determined in accordance with the financial reporting guidance for equity-based payments to non-employees and for financial instruments. DuringThe warrants issued to Amazon as of March 8, 2016, were recorded to stockholders equity, having a fair value of $4.89 per share. At that time, the fair value of the 7.69 million vested warrants issued to Amazon was recorded as a lease incentive asset and is being amortized against revenues over the duration of the aircraft leases. On May 12, 2016, the Company’s stockholders approved an amendment to the Certificate of Incorporation of the Company at the annual meeting of stockholders to increase the number of authorized common shares and to approve the warrants in full as required under the rules of the Nasdaq Global Select Market. The stockholders' approval enabled features of the warrants that required the vested warrants of the first nine monthstranche and the warrants of 2017, 3.8the second and third tranches to be classified as financial instruments as of May 12, 2016. Accordingly, the fair value of those warrants was measured and classified in liabilities on that date. Since May 12, 2016, 5.12 million additional warrants in the first tranche vested in conjunction with the execution of sixeight aircraft leases during 2017.leases. As of SeptemberJune 30, 2017,2018, the Company's liabilities reflected 14.9014.83 million warrants having a fair value of $15.44$13.72 per share. As of September 30, 2017, theThe re-measurements of the warrants to fair value resulted in a third quarter non-operating loss of $35.0 milliongains before the effect of income taxes.taxes of $10.8 million and $7.7 million for the three and six month periods ended June 30, 2018, respectively, compared to non-operating losses of $67.3 million and $65.6 million for the corresponding periods of 2017.
The Company's earnings in future periods will be impacted by the number of warrants granted, the re-measurements of warrant fair value, amortizations of the lease incentive asset and the related income tax effects. For income tax calculations, the value and timing of related tax deductions will differ from the guidance described above for financial reporting.

U.S. Military
A substantial portion of the Company's revenues is also derived from the U.S. Military. The U.S. Military awards flights to U.S. certificated airlines through annual contracts and through temporary "expansion" routes. Revenues from services performed for the U.S. Military were approximately 7%11% and 7%11% of the Company's total revenues from continuing operations for the three and ninesix month periods ending SeptemberJune 30, 2017,2018, respectively, compared to 12%7% and 13%7% for the corresponding periods of 2016.2017. Revenues excluding directly reimbursed expenses from continuing operations performed for the U.S. Military comprised approximately 10% and 10% of the Company's consolidated revenues from continuing operations for the three and six month periods ending June 30, 2017. The Company's balance sheets included accounts receivable with the U.S. Military of $5.36.0 million and $7.06.7 million as of SeptemberJune 30, 20172018 and December 31, 2016,2017, respectively.

NOTE C—GOODWILL, INTANGIBLES AND EQUITY INVESTMENTS
OnThe Company's assets for CAM and the MRO Services segments each include goodwill. An annual impairment test was performed for each, respectively, at December, 30, 2016, the Company purchased 100%31, 2017 using industry market multiples and discounted cash flows utilizing a market-derived rate of the outstanding stock of Pemco World Air Services Inc., ("Pemco") for cash consideration in a debt-free acquisition. The purchase price has been allocated to tangible and identifiable intangible assets acquired and liabilities assumed based on their estimated fair values at the date of acquisition. The excess purchase price over the estimatedreturn (level 3 fair value of net assets acquiredinputs). Goodwill was recorded as goodwill


and reflects the strategic value of marketing Pemco's aircraft conversion capabilities and current aircraft hangar operations with the Company's comprehensive set of air transportation solutions. Identified intangible assets include Supplemental Type Certificates ("STCs") granting approval by the FAA for Pemco to market and complete certain aircraft modifications. The Company is in the process of refining its estimates of certain assets including goodwill and intangible assets, therefore the allocation of purchase price is preliminary at this time. The consolidated statements of operations include the revenues and expenses for Pemco for the periods after its acquisition by the Company. The consolidated statements of operations reflect the reclassification of certain previously reported operating expenses to conform to the current presentation.not impaired.
The carrying amounts of goodwill are as follows (in thousands):
  CAM All Other Total
Carrying value as of December 31, 2016 $34,395
 $2,738
 $37,133
Purchase price adjustment 
 146
 146
Carrying value as of September 30, 2017 $34,395
 $2,884
 $37,279
  CAM MRO Services Total
Carrying value as of December 31, 2017 $34,395
 $2,884
 $37,279
Carrying value as of June 30, 2018 $34,395
 $2,884
 $37,279
The Company's acquired intangible assets are as follows (in thousands):
  Airline Amortizing  
  Certificates Intangibles Total
Carrying value as of December 31, 2016 $3,000
 $5,453
 $8,453
Amortization 
 (415) (415)
Carrying value as of September 30, 2017 $3,000
 $5,038
 $8,038
  Airline Amortizing  
  Certificates Intangibles Total
Carrying value as of December 31, 2017 $3,000
 $4,298
 $7,298
Amortization 
 (578) (578)
Carrying value as of June 30, 2018 $3,000
 $3,720
 $6,720
The airline certificates have an indefinite life and therefore are not amortized. The Company amortizes finite-lived intangibles assets, including customer relationship and STC intangibles, over 4 to 7 years.
Stock warrants issued to a lessee (see Note B) as an incentive are recorded as a lease incentive asset using their fair value at the time that the lessee has met its performance obligation and amortized against revenues over the duration of related aircraft leases. The Company's lease incentive granted to the lessee was as follows (in thousands):
  Lease
  Incentive
Carrying value as of December 31, 2017 $80,684
Amortization (8,452)
Carrying value as of June 30, 2018 $72,232
The lease incentive began to amortize in April 2016, with the commencement of certain aircraft leases over the duration of the related leases.
In January 2014, the Company acquired a 25 percent equity interest in West Atlantic AB of Gothenburg, Sweden ("West"). and in December 2017, the Company entered into a preferred equity instrument. West, through its two airlines, Atlantic Airlines Ltd. and West Air Sweden AB, operates a fleet of aircraft on behalf of European regional mail carriers and express logistics providers. The airlines operate a combined fleet of British Aerospace ATPs, Bombardier CRJ-200-PFs, and Boeing 767 and 737 aircraft. West leases three Boeing 767 aircraft and two Boeing 737 from the Company. The Company accounts for West using the equity method of accounting. The Company’s carrying value of West was $7.9$7.7 million and $9.9$7.1 million at SeptemberJune 30, 20172018 and December 31, 2016, 2017,


respectively, including $5.5 million of excess purchase price over the Company's fair value of West's net assets in January of 2014. The carrying value isCompany's equity interest and the preferred equity instrument are reflected in “Other Assets” in the Company’s consolidated balance sheets.sheets as of June 30, 2018 and December 31, 2017.
On August 3, 2017 the Company entered into a joint-venture agreement with Precision Aircraft Solutions, LLC, to develop a passenger-to-freighter conversion program for Airbus A321-200 aircraft. The Company anticipates approval of a supplemental type certificate from the FAA in 2019. The Company expects to make contributions equal to its 49% ownership percentage of the program's total costs over the next two years. The Company accounts for its investment in the joint venture under the equity method of accounting. Duringaccounting, in which the third quarter,carrying value of the company contributed $6.3 million toinvestment is reduced for the Company's share of the joint venture.ventures operating losses. The carrying value of the joint venture,reflected in “Other Assets” in the Company’s consolidated balance sheets, was $5.3$5.8 million and $5.6 million at SeptemberJune 30, 2017.


Stock warrants issued to a lessee (see Note B) as an incentive are recorded as a lease incentive asset using their fair value at the time that the lessee has met its performance obligation2018 and amortized against revenues over the duration of related aircraft leases. The Company's lease incentive granted to the lessee was as follows (in thousands):
  Lease
  Incentive
Carrying value as of December 31, 2016 $54,730
Value of warrants granted 39,940
Amortization (9,760)
Carrying value as of September 30, 2017 $84,910
The lease incentive began to amortize in April 2016, with the commencement of certain aircraft leases over the duration of the related leases.December 31, 2017.

NOTE D—FAIR VALUE MEASUREMENTS
The Company’s money market funds and interest rate swaps are reported on the Company’s consolidated balance sheets at fair values based on market values from identical or comparable transactions. The fair value of the Company’s money market funds, stock warrant obligations, convertible note, convertible note hedges and interest rate swaps are based on observable inputs (Level 2) from comparable market transactions. The fair value of the stock warrant obligations were determined using a Black-Scholes pricing model which considers the Company’s common stock price and various assumptions, such as the volatility of the Company’s common stock, the expected dividend yield, and the risk-free interest rate. The fair value of the note conversion obligations and the convertible note hedges were estimated using a Black-Scholes pricing model and incorporate the terms and conditions of the underlying financial instruments. The valuations are, among other things, subject to changes in both the Company's credit worthiness and the counter-parties to the instruments as well as change in general market conditions. While the change in fair value of the note conversion obligations and the convertible note hedges are generally expected to move in opposite directions, the net change in any given period may be material.
The following table reflects assets and liabilities that are measured at fair value on a recurring basis (in thousands):
 
As of September 30, 2017Fair Value Measurement Using Total
As of June 30, 2018Fair Value Measurement Using Total
Level 1 Level 2 Level 3 TotalLevel 1 Level 2 Level 3 
Assets             
Cash equivalents—money market$
 $50,800
 $
 $50,800
$
 $20,835
 $
 $20,835
Interest rate swaps
 546
 
 546
Convertible note hedges
 60,605
 
 60,605
Interest rate swap
 4,992
 
 4,992
Total Assets$
 $111,951
 $
 $111,951
$
 $25,827
 $
 $25,827
Liabilities              
Interest rate swaps$
 $(351) $
 $(351)
Note conversion obligations
 (61,230) 
 (61,230)
Stock warrant obligations
 (229,965) 
 (229,965)
 (203,426) 
 (203,426)
Total Liabilities$
 $(291,546) $
 $(291,546)$
 $(203,426) $
 $(203,426)

As of December 31, 2016Fair Value Measurement Using Total
As of December 31, 2017Fair Value Measurement Using Total
Level 1 Level 2 Level 3 TotalLevel 1 Level 2 Level 3 
Assets             
Cash equivalents—money market$
 $482
 $
 $482
$
 $1,326
 $
 $1,326
Interest rate swap
 547
 
 547

 1,840
 
 1,840
Convertible note hedges
 53,683
 
 53,683
Total Assets$
 $1,029
 $
 $1,029
$
 $56,849
 $
 $56,849
Liabilities              
Interest rate swap$
 $(77) $
 $(77)
Note conversion obligations
 (54,359) 
 (54,359)
Stock warrant obligation
 (89,441) 
 (89,441)
 (211,136) 
 (211,136)
Total Liabilities$
 $(89,518) $
 $(89,518)$
 $(265,495) $
 $(265,495)
TheAs a result of higher market interest rates compared to the stated interest rates of the Company’s fixed rate debt obligations, the fair value of the Company’s fixed and variable debt obligations, based on Level 2 observable inputs, was approximately $12.4$7.7 million less than the carrying value, which was $520.7 million at June 30, 2018. As of December 31, 2017, the fair value of the Company’s debt obligations was approximately $9.1 million more than the carrying value, which was $493.2 million at September 30, 2017. As of December 31, 2016, the fair value of the Company’s fixed and variable debt obligations was approximately $0.2 million more than the carrying value, which was $458.7$515.8 million. The non-financial assets, including goodwill, intangible assets and property and equipment are measured at fair value on a non-recurring basis.

NOTE E—PROPERTY AND EQUIPMENT
The Company's property and equipment consists primarily of cargo aircraft, aircraft engines and other flight equipment. Property and equipment, to be held and used, is summarized as follows (in thousands):
 
September 30,
2017
 December 31,
2016
June 30,
2018
 December 31,
2017
Flight equipment$1,689,027
 $1,541,872
$1,870,120
 $1,801,808
Ground equipment51,209
 49,229
54,165
 53,523
Leasehold improvements, facilities and office equipment27,385
 27,364
28,660
 26,897
Aircraft modifications and projects in progress157,251
 113,518
148,999
 121,760
1,924,872
 1,731,983
2,101,944
 2,003,988
Accumulated depreciation(813,671) (730,991)(900,947) (844,026)
Property and equipment, net$1,111,201
 $1,000,992
$1,200,997
 $1,159,962
CAM owned aircraft with a carrying value of $632.3$751.1 million and $524.3$697.4 million that were under leases to external customers as of SeptemberJune 30, 20172018 and December 31, 2016,2017, respectively.
The Company’s accounting policy for major airframe and engine maintenance varies by subsidiary and aircraft type. The costs of airframe maintenance for ABX's Boeing 767-200 airframe maintenanceoperated by ABX are expensed as they are incurred. The costs of major airframe maintenance for the Company's other aircraft are capitalized and amortized over the useful life of the overhaul. Many of the Company's General Electric CF6 engines that power the Boeing 767-200 aircraft are maintained under “power by the hour” and "power by the cycle" agreements with an engine maintenance provider. Further, in May 2017, the Company entered into similar maintenance agreements for certain General Electric CF6 engines that power many of the Company's Boeing 767-300 aircraft. Under these agreements, the engines are maintained by the service provider for a fixed fee per cycle and/or flight hour. As a result, the cost of maintenance for these engines is generally expensed as flights occur. During their term, these maintenance agreements contain provisions for a minimum level of flight activity. Maintenance for the airlines’ other aircraft engines, including those powering Boeing 757 aircraft, are typically contracted to service providers on a time and material basis and the costs of those engine overhauls are capitalized and amortized over the useful life of the overhaul.


NOTE F—DEBT OBLIGATIONS
Long termDebt obligations consisted of the following (in thousands):
 
September 30, December 31,June 30, December 31,
2017 20162018 2017
Unsubordinated term loan$74,311
 $85,636
$63,061
 $70,568
Revolving credit facility220,000
 355,000
257,000
 245,000
Aircraft loans4,374
 18,085

 3,640
Convertible debt194,486
 
200,652
 196,550
Total long term obligations493,171
 458,721
Total debt obligations520,713
 515,758
Less: current portion(19,247) (29,306)(14,860) (18,512)
Total long term obligations, net$473,924
 $429,415
$505,853
 $497,246
The Company executed a syndicated credit agreement ("Senior Credit Agreement") in May 2011 which includes an unsubordinated term loan and a revolving credit facility. Effective March 31, 2017, the Company executed an amendment to thefacility which has a capacity of $545.0 million. The Senior Credit Agreement. The March 2017 amendment extended the maturity of the term loan and revolving facility toAgreement expires May 30, 2022, increased the capacity of the revolving credit facility by $120.0 million to $545.0 million and preserved the accordion feature such that the Company can still draw up to an additional $100.0 million subject to the lenders' consent.2023. Each year, through May 6, 2019, the Company may request a one year extension of the final maturity date, subject to the lenders' consent. In September 2017, the Company executed amendments to theThe Senior Credit agreement. These amendments increased the revolving credit facility's permittedAgreement permits additional indebtedness of up to $300.0 million for the convertible notes described below.debt. The amendments also increasedSenior Credit Agreement limits the amount of dividends the Company can pay and the amount of common stock it can repurchase to $100.0 million during any calendarcalender year, provided the Company's total secured debt to earnings before interest, taxes, depreciation and amortization expenses ("EBITDA") ratio is under 3.00 times, after giving effect to the dividend or repurchase. As of June 30, 2018, the unused revolving credit facility totaled $278.8 million, net of draws of $257.0 million and outstanding letters of credit of $9.2 million. Additionally, the Senior Credit Agreement includes an accordion feature such that the Company can now draw up to an additional $100.0 million subject to the lenders' consent.
The Senior Credit Agreement is collateralized by certain of the Company's Boeing 767 and 757 aircraft that are not collateralized under aircraft loans. Under the terms of the Senior Credit Agreement, the Company is required to maintain collateral coverage equal to 125% of the outstanding balancesbalance of the term loan and the maximum capacity of the revolving credit facility or 150% of the outstanding balance of the term loan and the total funded revolving credit facility, whichever is less. The minimum collateral coverage which must be maintained is 50% of the outstanding balance of the term loan plus the revolving credit facility commitment which was $545.0 million.
The balancesbalance of the unsubordinated term loan areis net of debt issuance costs of $0.7 million and $0.6$0.7 million for the periods ending SeptemberJune 30, 20172018 and December 31, 2016,2017, respectively. Under the terms of the Senior Credit Agreement, interest rates are adjusted quarterly based on the Company's EBITDA, its outstanding debt level and prevailing LIBOR or prime rates. At the Company's current secured debt-to-EBITDA ratio, the LIBOR based financing for the unsubordinated term loan and revolving credit facility bear a variable interest rate of 3.24%3.6% and 3.24%3.6%, respectively. The Senior Credit Agreement provides foraircraft loan was paid off by the issuance of letters of credit on the Company's behalf. As of September 30, 2017, the unused revolving credit facility totaled $315.7 million, net of draws of $220.0 million and outstanding letters of credit of $9.3 million.Company in January 2018.
The aircraft loans are collateralized by two aircraft, and amortize monthly with a balloon payment of approximately 20% with maturities between 2017 and early 2018. Interest rates range from 6.74% to 6.82% per annum payable monthly. The Senior Credit Agreement is collateralized by certain of the Company's Boeing 767 and 757 aircraft that are not collateralized under aircraft loans. The Senior Credit Agreement contains covenants including, among other things, limitations on certain additional indebtedness, guarantees of indebtedness, as well as a total debt to EBITDA ratio and a fixed charge coverage ratio. The Senior Credit Agreement stipulates events of default, including unspecified events that may have material adverse effects on the Company. If an event of default occurs, the Company may be forced to repay, renegotiate or replace the Senior Credit Agreement.
In September 2017, the Company issued $258.8 million aggregate principal amount of 1.125% Convertible Senior Notes due 2024 ("Notes") in a private offering to qualified institutional buyers pursuant to Rule 144A under the Securities Act. The Notes bear interest at a rate of 1.125% per year payable semi-annually in arrears on April 15 and October 15 each year, beginning April 15, 2018. The Notes mature on October 15, 2024, unless repurchased or converted in

accordance with their terms prior to such date. The Notes are unsecured indebtedness, subordinated to the Company's existing and future secured indebtedness and other liabilities, including trade payables. Conversion of the Notes can only occur upon satisfaction of certain conditions and during certain periods, beginning in any calendar quarter commencing after December 31, 2017 and thereafter, until the close of business on the second scheduled trading day

immediately preceding the maturity date. Upon the occurrence of certain fundamental changes, holders of the Notes can require the Company to repurchase their notes at the cash repurchase price equal to the principal amount of the notes, plus any accrued and unpaid interest. Until the Company's shareholders increase the number of authorized shares of common stock to cover the full number of shares underlying the Notes, the Company is required to settle conversions solely in cash. If the number of authorized shares is increased, the
The Notes may be settled in cash, the Company’s common shares or a combination of cash and the Company’s common shares, at the Company’s election. The initial conversion rate is 31.3475 common shares per $1,000 principal amount of Notes (equivalent to an initial conversion price of approximately $31.90 per common share). If a “make-whole fundamental change” (as defined in the offering circular with the Notes) occurs, the Company will, in certain circumstances, increase the conversion rate for a specified period of time.
The Company evaluated the conversion features of the Notes under the applicable accounting guidance including ASC 815, "Derivatives and Hedging,"and determined that the conversion features require separate accounting as a derivative. At the time of issuance, the fair value of this derivative was recorded on the balance sheet as the note conversion obligations (a long-term liability) and an offsetting discount to the Notes. Until the Company's shareholders increase the number of authorized shares of common stock, the note conversion obligations will be adjusted to reflect its fair value at the end of each quarter. The fair value of the note conversion obligation at issuance was $57.4 million. The fair value of the note conversion obligations at September 30, 2017 was $61.2 million and resulted in a non-operating loss of $3.9 million before the effect of income tax during the third quarter ended September 30, 2017.
The net proceeds from the issuance of the Notes were approximately $252.3 million, after deducting initial issuance costs. These unamortized issuance costs and discount are being amortized to interest expense through October 2024, using an effective interest rate of approximately 5.15%. The carrying value of Company's Convertible debt is shown below.
September 30,
2017
Principal value, Convertible Senior Notes, due 2024258,750
Unamortized issuance costs

(6,938)
Unamortized discount

(57,326)
Convertible debt194,486
In conjunction with the offering of the Notes, the Company purchased convertible note hedges under privately negotiated transactions for $56.1 million. These transactions cover, subject to customary anti-dilution adjustments, the number of the Company’s common shares that initially underlie the Notes, and are expected to reduce the potential equity dilution with respect to our common stock, and/or offset any cash payments in excess of the principal amount due, as the case may be, upon conversion of the Notes. The initial strike price of the convertible note hedges is $31.90 per share. The Company evaluated the convertible note hedges under the applicable accounting guidance, including ASC 815, "Derivatives and Hedging," and determined that the convertible note hedges should be accounted for as derivatives. These derivatives were capitalized on the balance sheet as long-term assets and are adjusted to reflect their fair value at the end of the quarter. The fair value of the convertible note hedges at September 30, 2017 was $60.6 million. As of September 30, 2017, the re-measurement of the convertible note hedges to fair value resulted in a non-operating gain of $4.5 million before the effect of income tax.

In conjunction with the offering of the Notes, the Company also sold warrants to the convertible note hedges counterparties in separate, privately negotiated warrant transactions at a higher strike price and for the same number of the Company’s common shares, subject to customary anti-dilution adjustments. The warrants could have a dilutive effect on the Company’s outstanding common shares and the Company’s earnings per share to the extent that the traded market price of the Company’s common shares exceeds the strike price of the warrants which is $41.35 per share and is subject to certain adjustments under the terms of the warrant transactions. The Company evaluated the warrants under the applicable accounting guidance, including ASC 815 "Derivatives and Hedging,"and determined that the warrants meet the definition of a derivative, however, because these warrants have been determined to be indexed to the Company's own stock and meet the criteria for equity classification, they have been recorded in shareholder's equity. In the event these warrants are exercised, the Company has enough authorized and unissued shares for their issuance. The amount paid for these warrants and recorded in Stockholders' Equity in the Company’s consolidated balance sheets was $38.5 million. Taken together, the convertible note hedge and warrant transactions are intended to limit, during Notes conversion events, the dilution of the Company's common shares until the traded market price exceeds $41.35.

NOTE G—DERIVATIVE INSTRUMENTS
The Company's Senior Credit Agreement requires the Company to maintain derivative instruments for protection from fluctuating interest rates, for at least fifty percent of the outstanding balance of the term loan. Accordingly, the Company entered into interest rate swaps. The Company entered into two new interest rate swaps in February 2017 and April 2017, respectively, having an initial value of $39.4 million and $50.0 million, respectively, and forward start dates of June 30, 2017. The Company also entered into a new interest rate swap in July 2017, having an initial value of $75.0 million and a forward start date of December 31, 2017. Under these three new swaps, the Company pays a fixed rate of 1.703%, 1.9% and 1.95%, respectively, and receives a floating rate that resets monthly based on LIBOR. The table below provides information about the Company’s interest rate swaps (in thousands):
   September 30, 2017 December 31, 2016
Expiration Date
Stated
Interest
Rate
 
Notional
Amount
 
Market
Value
(Liability)
 
Notional
Amount
 
Market
Value
(Liability)
June 30, 20171.183% 
 
 43,125
 (77)
May 5, 20211.090% 37,500
 544
 43,125
 547
May 30, 20211.703% 37,500
 2
 
 
March 31, 20221.900% 50,000
 (126) 
 
March 31, 20221.950% 75,000
 (225) 
 
The outstanding interest rate swaps are not designated as hedges for accounting purposes. The effects of future fluctuations in LIBOR interest rates on derivatives held by the Company will result in the recording of unrealized gains and losses into the statement of operations. The Company recorded the net loss on derivatives of $0.3 million and net gains on derivatives of $0.1 million for the nine month periods ending September 30, 2017 and 2016, respectively. The asset for outstanding derivatives is recorded in other assets. The liability for outstanding derivatives is recorded in other liabilities and in accrued expenses.
During September 2017, the Company issued convertible debt in the form of the Notes and recorded a long-term liability representing the Note conversion liability. In conjunction with the Notes, the Company purchased convertible note hedges having the same number of the Company’s common shares, 8.1 million shares, and same strike price of $31.90, that underlie the Notes. The convertible note hedges are expected to reduce the potential equity dilution with respect to the Company's common stock, and/or offset any cash payments in excess of the principal amount due, as the case may be, upon conversion of the Notes. The Company's current intent and policy is to settle all Note conversions through a combination settlement which satisfies the principal amount of the Notes outstanding with cash. The Notes could have a dilutive effect on the computation of earnings per share in accordance with accounting principles to the extent that the average traded market price of the Company’s common shares for a reporting period exceeds the conversion price.
The conversion feature of the Notes required bifurcation from the principal amount under the applicable accounting guidance. Settlement provisions of the Notes and the convertible note hedges required cash settlement of these instruments until the Company's shareholders increased the number of authorized shares of common stock to cover the full number of shares underlying the Notes. As a result, the conversion feature of the Notes and the convertible note hedges were initially accounted for as liabilities and assets, respectively, and marked to market at the end of each period. On May 10, 2018, the Company's shareholders increased the number of authorized shares of common stock to cover the full number of shares underlying the Notes. The Company reevaluated the Notes and convertible note hedges under the applicable accounting guidance including ASC 815, "Derivatives and Hedging," and determined that the instruments, which meet the definition of derivative and are indexed to the Company's own stock, should be classified in shareholder's equity. The fair value of the the conversion feature of the Notes and the convertible note hedges of $51.3 million and $50.6 million, respectively on May 10, 2018 were reclassified to paid-in capital.
The Notes issuance costs and discount are being amortized to interest expense through October 2024, using an effective interest rate of approximately 5.15%. The carrying value of the Company's Convertible debt is shown below:
  June 30, December 31,
  2018 2017
Principal value, Convertible Senior Notes, due 2024 258,750
 258,750
Unamortized issuance costs

 (6,255) (6,685)
Unamortized discount

 (51,843) (55,515)
Convertible debt 200,652
 196,550
In conjunction with the offering of the Notes, the Company also sold warrants to the convertible note hedge counterparties in separate, privately negotiated warrant transactions at a higher strike price and for the same number of the Company’s common shares, subject to customary anti-dilution adjustments. The amount received for these warrants and recorded in paid-in capital on the Company’s consolidated balance sheets was $38.5 million. These warrants could have resulted in 8.1 million additional shares of the Company's common stock, if the Company's traded market price exceeded the strike price which is $41.35 per share and is subject to certain adjustments under the terms of the warrant transactions. The warrants could have a dilutive effect on the computation of earnings per share to the extent that the average traded market price of the Company’s common shares for a reporting period exceeds the strike price.


NOTE G—DERIVATIVE INSTRUMENTS
The Company's Senior Credit Agreement requires the Company to maintain derivative instruments for protection from fluctuating interest rates, for at least fifty percent of the outstanding balance of the term loan. Accordingly, the Company entered into interest rate swaps. The table below provides information about the Company’s interest rate swaps (in thousands):
   June 30, 2018 December 31, 2017
Expiration Date
Stated
Interest
Rate
 
Notional
Amount
 
Market
Value
(Liability)
 
Notional
Amount
 
Market
Value
(Liability)
May 5, 20211.090% 31,875
 943
 35,625
 719
May 30, 20211.703% 31,875
 570
 35,625
 240
March 31, 20221.900% 50,000
 1,444
 50,000
 416
March 31, 20221.950% 75,000
 2,035
 75,000
 465
The outstanding interest rate swaps are not designated as hedges for accounting purposes. The effects of future fluctuations in LIBOR interest rates on derivatives held by the Company will result in the recording of unrealized gains and losses into the statement of operations. The Company recorded pre-tax gains on derivatives of $3.2 million and pre-tax losses of $0.2 million for the six month periods ending June 30, 2018 and 2017, respectively. The liability for outstanding derivatives is recorded in other liabilities and in accrued expenses.
The Company recorded a net gainloss before the effects of income taxes of $0.6$0.1 million during the quartersix month periods ending SeptemberJune 30, 20172018 for the revaluation of the convertible note hedges and the note conversion obligations to fair value. For additional information see Note F, "Debt Obligations " and Note D "Fair Value Measurements."value before these instruments were reclassified to paid-in capital.


NOTE H—COMMITMENTS AND CONTINGENCIES
Lease Commitments
The Company leases portions of the air park in Wilmington, Ohio, under lease agreements with a regional port authority, the terms of which expire in May of 2019 and June of 2036 with options to extend the leases. The leased facilities include corporate offices, 310,000 square feet of maintenance hangars and a 100,000 square foot component repair shop at the air park. ABX also has the non-exclusive right to use the airport, which includes one active runway, taxi ways and ramp space. The Company also leases and operates a 311,500 square foot, two hangar aircraft maintenance complex in Tampa, Florida. Additionally, the Company leases certain equipment and airport facilities, office space, and maintenance facilities at locations outsideother locations. As of June 30, 2018 and December 31, 2017, the airpark in Wilmington.Company did not lease any aircraft from lessors.
Purchase Commitments
The Company has agreements with Israel Aerospace Industries Ltd. ("IAI") for the conversion of Boeing 767 passenger aircraft into a standard configured freighter aircraft. The conversions primarily consist of the installation of a standard cargo door and loading system. At SeptemberJune 30, 2017,2018, the Company was committed to acquire and modify additional Boeing 767-300 passenger aircraft into standard freighter aircraft. In addition to three Boeing 767-300five aircraft that were in the modification process at SeptemberJune 30, 2017,2018, the Company is committed to induct sixtwo more aircraft into the freighter modification process through 2019, including commitments to purchase two more Boeing 767-300 passenger aircraft during the second half of 2018. As of SeptemberJune 30, 2017,2018, the Company's commitments to complete the conversions of aircraft it owns or has the contracts to purchase totaled $124.5$79.8 million. Additionally, the Company could incur a cancellation fee for part kits for any aircraft that is not inducted into conversion at IAI.
Guarantees and Indemnifications
Certain leases and agreements of the Company contain guarantees and indemnification obligations to the lessor, or one or more other parties that are considered reasonable and customary (e.g. use, tax and environmental

indemnifications), the terms of which range in duration and are often limited. Such indemnification obligations may continue after expiration of the respective lease or agreement.
Other
In September 2015, the Company entered into a joint venture agreement to establish an express cargo airline serving multiple destinations within the People's Republic of China (including Hong Kong, Macau and Taiwan) and surrounding countries, pending governmental approvals. The Company's contributions to the joint venture have been minimal and are expected to remain so over the next several months. Obtaining required governmental approvals for any new airline has since been delayed and as a result, the Company is evaluating alternatives. The Company is seeking to develop other aircraft investments in China by leveraging the relationship developed by Pemco, which provides modified Boeing 737 freighter aircraft in China.
In addition to the foregoing matters, the Company is also a party to legal proceedings including FAA enforcement actions, in various federal and state jurisdictions from time to time arising out of the operation of the Company's business. The amount of alleged liability, if any, from these proceedings cannot be determined with certainty; however, the Company believes that its ultimate liability, if any, arising from pending legal proceedings, as well as from asserted legal claims and known potential legal claims which are probable of assertion, taking into account established accruals for estimated liabilities, should not be material to our financial condition or results of operations.

Employees Under Collective Bargaining Agreements
As of SeptemberJune 30, 2017,2018, the flight crewmember employees of ABX and ATI and flight attendant employees of ATI were represented by the labor unions listed below:
AirlineLabor Agreement Unit
Percentage of
the Company’s
Employees
ABXInternational Brotherhood of Teamsters8.9%7.6%
ATIAir Line Pilots Association7.7%6.9%
ATIAssociation of Flight Attendants1.1%
In addition, the Company has approximately 40 flight attendants that are represented by a recognized labor unit and are negotiating a collective bargaining agreement.

NOTE I—PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS
Defined Benefit and Post-retirement Healthcare Plans
ABX sponsors a qualified defined benefit pension plan for ABX crewmembers and a qualified defined benefit pension plan for a major portion of its other ABX employees that meet minimum eligibility requirements. The plans are funded through Company contributions to an invested trust. ABX also sponsors non-qualified defined benefit pension plans for certain employees. These non-qualified plans are unfunded. Employees are no longer accruing benefits under any of the defined benefit pension plans. ABX also sponsors a post-retirement healthcare plan for its ABX crewmembers,employees, which is unfunded. Benefits for covered individuals terminate upon reaching age 65 under the post-retirement healthcare plans.
The accounting and valuation for these post-retirement obligations are determined by prescribed accounting and actuarial methods that consider a number of assumptions and estimates. The selection of appropriate assumptions and estimates is significant due to the long time period over which benefits will be accrued and paid. The long term nature of these benefit payouts increases the sensitivity of certain estimates of our post-retirement costs. The assumptions considered most sensitive in actuarially valuing ABX’s pension obligations and determining related expense amounts are discount rates and expected long term investment returns on plan assets. Additionally, other assumptions concerning retirement ages, mortality and employee turnover also affect the valuations. Actual results and future changes in these assumptions could result in future costs significantly higher than those recorded in our results of operations. Effective
ABX measures plan assets and benefit obligations as of December 31 2016, ABX modified its unfunded, non-pilot retiree medical plan to terminate benefits to all participants. Retired participants were directed to publicof each year. Information regarding ABX’s sponsored defined benefit pension plans and post-retirement healthcare exchanges for more flexibleplans follow below. The accumulated benefit obligation reflects pension benefit obligations based on the actual earnings and lower cost alternatives. As a result, ABX settled all retiree medical obligations.
On August 30, 2017, the Company transferred investment assets totaling $106.6 million from the pension plan trust to purchase a group annuity contract from Mutualservice to-date of America Life Insurance Company ("MUA"). The group annuity contract transfers payment obligations for pension benefits owed to certain former, non-pilot retirees of ABX (or their beneficiaries) to MUA. As a result of the transaction, the Company recognized pre-tax settlement charges of $5.3 million to continued operations and $7.6 million to discontinued operations in the third quarter due to the reclassification of $12.9 million of pretax losses from accumulated other comprehensive loss.current employees.

The Company'sCompany’s net periodic benefit costs for its defined benefit pension plans and post-retirement healthcare plans for both continuing and discontinued operations are as follows (in thousands):
Three Months Ended September 30, Nine Months Ended September 30,Three Months Ended June 30, Six Months Ended June 30,
Pension Plans Post-Retirement Healthcare Plan Pension Plans Post-Retirement Healthcare PlanPension Plans Post-Retirement Healthcare Plan Pension Plans Post-Retirement Healthcare Plan
2017 2016 2017 2016 2017 2016 2017 20162018 2017 2018 2017 2018 2017 2018 2017
Service cost$
 $
 $39
 $31
 $
 $
 $117
 $93
$
 $
 $30
 $39
 $
 $
 $60
 $78
Interest cost8,396
 8,968
 36
 42
 25,946
 26,904
 108
 126
7,284
 8,775
 32
 36
 14,568
 17,550
 64
 72
Expected return on plan assets(10,520) (10,264) 
 
 (32,379) (30,792) 
 
(10,523) (10,930) 
 
 (21,046) (21,859) 
 
Settlement charge12,923
 
 
 
 12,923
 
 
 
Amortization of prior service cost
 
 (13) (26) 
 
 (39) (78)
 
 
 (13) 
 
 
 (26)
Amortization of net loss1,944
 3,368
 71
 40
 5,819
 10,104
 213
 120
Net periodic benefit cost$12,743
 $2,072
 $133
 $87
 $12,309
 $6,216
 $399
 $261
Amortization of net (gain) loss887
 1,937
 55
 71
 1,774
 3,874
 110
 142
Net periodic benefit cost (income)$(2,352) $(218) $117
 $133
 $(4,704) $(435) $234
 $266
During the ninesix month period ending SeptemberJune 30, 2017,2018, the Company contributed $4.1$1.8 million to the pension plans. The Company expects to contribute an additional $0.4$20.7 million during the remainder of 2017.2018.

NOTE J—INCOME TAXES
The provision for income taxes for interim periods is based on management's best estimate of the effective income tax rate expected to be applicable for the current year, plus any adjustments arising from changes in the estimated amount of taxable income related to prior periods. Federal legislation known as the The Tax Cuts and Jobs Acts ("Tax Act") was enacted on December 22, 2017. The Tax Act reduces the U.S. federal corporate tax rate from the previous rate of 35% to 21% effective January 1, 2018. The Tax Act also makes broad and complex changes to the U.S. tax code, including, but not limited to a one time tax on earnings of certain foreign subsidiaries, limitations of net operating loss carryforwards created in tax years beginning after December 31, 2017, bonus depreciation for full expensing of qualified property, and limitations on the deductibility of certain executive compensation. The Company will continue to refine the calculations as additional analysis is completed and the Company gains a more thorough understanding of the Tax Act, including the tax law related to the deductibility of purchased assets, state tax treatment, and amounts related to employee compensation.
Income tax expense recorded through SeptemberJune 30, 20172018 utilized a projected annualized 39.6%24.3% rate applied to year-to-date income. Additionally, the Company recorded discrete tax items for the conversion of employee stock awards during the first quarter of 2017 and the issuance of stock warrants during the first three quarters of 2017,2018, resulting in an effective tax rate of (36.2)%21.0%. The final effective tax rate applied to 20172018 will depend on the actual amount of pre-tax book results by the Company for the full year, the additional conversions of employee stock awards, issuance of stock warrants and other items.
The Company has operating loss carryforwards for U.S. federal income tax purposes. Management expects to utilize the loss carryforwards to offset federal income tax liabilities in the future. Due to the Company's deferred tax assets, including its loss carryforwards, management does not expect to pay federal income taxes until 20192023 or later. The Company may, however, be required to pay alternative minimum taxessome federal tax due to loss carryforward usage limitations and certain state and local income taxes before then.


NOTE K—ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
Accumulated other comprehensive income (loss) includes the following items by components for the three and ninesix month periods ending SeptemberJune 30, 20172018 and 20162017 (in thousands):
  Defined Benefit Pension Defined Benefit Post-Retirement Foreign Currency Translation Total
Balance as of June 30, 2016 (93,010) (297) (1,085) (94,392)
Other comprehensive income (loss) before reclassifications:        
Foreign currency translation adjustment 
 
 (397) (397)
Amounts reclassified from accumulated other comprehensive income:        
Actuarial costs (reclassified to salaries, wages and benefits) 3,368
 40
 
 3,408
Negative prior service cost (reclassified to salaries, wages and benefits) 
 (26) 
 (26)
Income tax expense (1,222) (5) 141
 (1,086)
Other comprehensive income, net of tax 2,146
 9
 (256) 1,899
Balance as of September 30, 2016 (90,864) (288) (1,341) (92,493)
         
Balance as of December 31, 2015 (97,302) (315) (1,395) (99,012)
Other comprehensive income (loss) before reclassifications:        
Foreign currency translation adjustment 
 
 75
 75
Amounts reclassified from accumulated other comprehensive income:        
Actuarial costs (reclassified to salaries, wages and benefits) 10,104
 120
 
 10,224
Negative prior service cost (reclassified to salaries, wages and benefits) 
 (78) 
 (78)
Income tax expense (3,666) (15) (21) (3,702)
Other comprehensive income, net of tax 6,438
 27
 54
 6,519
Balance as of September 30, 2016 (90,864) (288) (1,341) (92,493)
  Defined Benefit Pension Defined Benefit Post-Retirement Foreign Currency Translation Total
Balance as of March 31, 2017 (75,854) (1,264) (1,440) (78,558)
Other comprehensive income (loss) before reclassifications:        
Foreign currency translation adjustment 
 
 152
 152
Amounts reclassified from accumulated other comprehensive income:        
Actuarial costs (reclassified to non-service costs) 1,937
 71
 
 2,008
Negative prior service cost 
 (13) 
 (13)
Income Tax (Expense) or Benefit (702) (21) (53) (776)
Other comprehensive income (loss), net of tax 1,235
 37
 99
 1,371
Balance as of June 30, 2017 (74,619) (1,227) (1,341) (77,187)
         
  Defined Benefit Pension Defined Benefit Post-Retirement Foreign Currency Translation Total
Balance as of December 31, 2016 (77,088) (1,301) (1,477) (79,866)
Other comprehensive income (loss) before reclassifications:        
Foreign currency translation adjustment 
 
 210
 210
Amounts reclassified from accumulated other comprehensive income:        
Actuarial costs (reclassified to non-service costs) 3,874
 142
 
 4,016
Negative prior service cost 
 (26) 
 (26)
Income Tax (Expense) or Benefit (1,405) (42) (74) (1,521)
Other comprehensive income (loss), net of tax 2,469
 74
 136
 2,679
Balance as of June 30, 2017 (74,619) (1,227) (1,341) (77,187)

  Defined Benefit Pension Defined Benefit Post-Retirement Foreign Currency Translation Total
Balance as of June 30, 2017 (74,619) (1,227) (1,341) (77,187)
Other comprehensive income (loss) before reclassifications:        
Actuarial loss for retiree liabilities (5,821) 
 
 (5,821)
Foreign currency translation adjustment 
 
 (24) (24)
Amounts reclassified from accumulated other comprehensive income:        
Pension settlement (reclassified to salaries, wages and benefits) 12,923
 
 
 12,923
Actuarial costs (reclassified to salaries, wages and benefits) 1,944
 71
 
 2,015
Negative prior service cost (reclassified to salaries, wages and benefits) 
 (13) 
 (13)
Income tax expense (3,283) (21) 9
 (3,295)
Other comprehensive income, net of tax 5,763
 37
 (15) 5,785
Balance as of September 30, 2017 (68,856) (1,190) (1,356) (71,402)
         
Balance as of December 31, 2016 (77,088) (1,301) (1,477) (79,866)
Other comprehensive income (loss) before reclassifications:        
Actuarial loss for retiree liabilities (5,821) 
 
 (5,821)
Foreign currency translation adjustment 
 
 186
 186
Amounts reclassified from accumulated other comprehensive income:        
Pension settlement (reclassified to salaries, wages and benefits) 12,923
 
 
 12,923
Actuarial costs (reclassified to salaries, wages and benefits) 5,819
 213
 
 6,032
Negative prior service cost (reclassified to salaries, wages and benefits) 
 (39) 
 (39)
Income tax expense (4,689) (63) (65) (4,817)
Other comprehensive income, net of tax 8,232
 111
 121
 8,464
Balance as of September 30, 2017 (68,856) (1,190) (1,356) (71,402)
  Defined Benefit Pension Defined Benefit Post-Retirement Foreign Currency Translation Total
Balance as of March 31, 2018 (59,888) (1,055) (1,364) (62,307)
Other comprehensive income (loss) before reclassifications:        
Foreign currency translation adjustment 
 
 (186) (186)
Amounts reclassified from accumulated other comprehensive income:        
Actuarial costs (reclassified to non-service costs) 887
 55
 
 942
Income Tax (Expense) or Benefit (200) (13) 63
 (150)
Other comprehensive income (loss), net of tax 687
 42
 (123) 606
Balance as of June 30, 2018 (59,201) (1,013) (1,487) (61,701)
         
  Defined Benefit Pension Defined Benefit Post-Retirement Foreign Currency Translation Total
Balance as of December 31, 2017 (60,575) (1,097) (1,348) (63,020)
Other comprehensive income (loss) before reclassifications:        
Foreign currency translation adjustment 
 
 (211) (211)
Amounts reclassified from accumulated other comprehensive income:        
Actuarial costs (reclassified to non-service costs) 1,774
 110
 
 1,884
Income Tax (Expense) or Benefit (400) (26) 72
 (354)
Other comprehensive income (loss), net of tax 1,374
 84
 (139) 1,319
Balance as of June 30, 2018 (59,201) (1,013) (1,487) (61,701)

NOTE L—STOCK-BASED COMPENSATION
The Company's Board of Directors has granted stock incentive awards to certain employees and board members pursuant to a long term incentive plan which was approved by the Company's stockholders in May 2005 and in May 2015. Employees have been awarded non-vested stock units with performance conditions, non-vested stock units with market conditions and non-vested restricted stock. The restrictions on the non-vested restricted stock awards lapse at the end of a specified service period, which is typically approximately three years from the date of grant. Restrictions could lapse sooner upon a business combination, death, disability or after an employee qualifies for retirement. The non-vested stock units will be converted into a number of shares of Company stock depending on performance and market conditions at the end of a specified service period, lasting approximately three years. The performance condition awards will be converted into a number of shares of Company stock based on the Company's average return on invested capital during the service period. Similarly, the market condition awards will be converted into a number of shares depending on the appreciation of the Company's stock compared to the NASDAQ Transportation Index. Board members were granted time-based awards with vesting periods of approximately six or twelve months. The Company expects to settle all of the stock unit awards by issuing new shares of stock. The table below summarizes award activity.
Nine Months EndedSix Months Ended
September 30, 2017 September 30, 2016June 30, 2018 June 30, 2017
Number of
Awards
 
Weighted
average
grant-date
fair value
 
Number of
Awards
 
Weighted
average
grant-date
fair value
Number of
Awards
 
Weighted
average
grant-date
fair value
 
Number of
Awards
 
Weighted
average
grant-date
fair value
Outstanding at beginning of period1,040,569
 $9.97
 1,157,659
 $7.52
873,849
 $12.30
 1,040,569
 $9.97
Granted243,940
 17.52
 294,060
 15.43
207,295
 26.50
 243,940
 17.52
Converted(173,210) 9.69
 (160,500) 7.20
(96,616) 10.89
 (173,210) 9.69
Expired
 
 
 
(500) 28.38
 
 
Forfeited(3,800) 13.66
 (9,200) 10.23
(2,600) 26.76
 (3,800) 13.66
Outstanding at end of period1,107,499
 $11.66
 1,282,019
 $9.36
981,428
 $15.39
 1,107,499
 $11.66
Vested324,599
 $6.39
 338,919
 $6.12
326,928
 $7.18
 324,599
 $6.39
The average grant-date fair value of each performance condition award, non-vested restricted stock award and time-based award granted by the Company in 20172018 was $16.7225.15, the fair value of the Company’s stock on the date of grant. The average grant-date fair value of each market condition award granted in 20172018 was $20.1831.60. The market condition awards were valued using a Monte Carlo simulation technique, a risk-free interest rate of 1.7%2.4% and a volatility of 34.7%33.8% based on volatility over three years using daily stock prices.
For the ninesix month periods ending SeptemberJune 30, 20172018 and 2016,2017, the Company recorded expense of $2.6$2.3 million and $2.2$1.7 million, respectively, for stock incentive awards. At SeptemberJune 30, 2017,2018, there was $4.7$7.2 million of unrecognized expense related to the stock incentive awards that is expected to be recognized over a weighted-average period of 1.31.6 years. As of SeptemberJune 30, 2017,2018, none of the awards were convertible, 324,599326,928 units of the Board members time-based awards had vested and none of the outstanding shares of the restricted stock had vested. These awards could result in a maximum number of 1,360,4741,216,478 additional outstanding shares of the Company’s common stock depending on service, performance and market results through December 31, 2019.2020.


NOTE M—COMMON STOCK AND EARNINGS PER SHARE
Earnings per Share
The calculation of basic and diluted earnings per common share are as follows (in thousands, except per share amounts):
Three Months Ended Nine Months EndedThree Months Ending Six Months Ending
September 30, September 30,June 30, June 30,
2017 2016 2017 20162018 2017 2018 2017
Numerator:              
Earnings (loss) from continuing operations - basic$24,464
 $(53,918) $40,146
 $(44,122)
Gain from stock warrants revaluation, net of tax(10,448) 
 (7,473) 
Earnings (loss) from continuing operations - diluted$(28,229) $2,116
 $(72,351) $21,815
$14,016
 $(53,918) $32,673
 $(44,122)
              
Denominator:              
Weighted-average shares outstanding - basic58,733
 59,379
 58,965
 62,084
Weighted-average shares outstanding for basic earnings per share58,739
 59,035
 58,790
 59,084
Common equivalent shares:              
Effect of stock-based compensation awards
 904
 
 1,940
Effect of stock-based compensation awards and warrants9,624
 
 9,994
 
Weighted-average shares outstanding assuming dilution58,733
 60,283
 58,965
 64,024
68,363
 59,035
 68,784
 59,084
       
Basic earnings (loss) per share from continuing operations$(0.48) $0.04
 $(1.23) $0.35
Diluted earnings (loss) per share from continuing operations$(0.48) $0.04
 $(1.23) $0.34
Basic earnings per share from continuing operations$0.42
 $(0.91) $0.68
 $(0.75)
Diluted earnings per share from continuing operations$0.21
 $(0.91) $0.48
 $(0.75)
The determination of diluted earnings per share requires the exclusion of the fair value re-measurement of the stock warrants recorded as a liability (see Note B), if such warrants have ana anti-dilutive effect on earnings per share. ForThe dilutive effect of the weighted-average diluted shares outstanding is calculated using the treasury method for periods in which equivalent shares have a dilutive effect on earnings per share, the weighted-average diluted shares outstanding is calculated using the treasury method.share. Under this method, the number of diluted shares is determined by dividing the assumed proceeds of the warrants recorded as a liability by the average stock price during the period and comparing that amount with the number of corresponding warrants outstanding.
The underlying warrants recorded as a liability as of SeptemberJune 30, 2017, and 2016, could have resultedresult in 14.9 million and 9.813.6 million additional shares of the Company's common stock respectively, if the warrants recorded as a liability wereare settled by tendering cash. The warrants recordednumber of equivalent shares that were not included in stockholders' equity as of Septemberweighted average shares outstanding assuming dilution, because their effect would have been anti-dilutive, were 8.5 million and 7.2 million for the three and six month periods ended June 30, 2017, and 2016, could have resulted in 8.1 million and zero additional shares of the Company's common stock, respectively, if the Company's stock price exceeded $41.35 and the warrants were settled in shares.
Purchase of Common Stock
The Company's Board of Directors has authorized management to repurchase outstanding common stock of the Company from time to time on the open market or in privately negotiated transactions. The authorization does not require the Company to repurchase a specific number of shares and the Company may terminate the repurchase program at any time. Upon the retirement of common stock repurchased, the excess purchase price over the par value for retired shares of common stock is recorded to additional paid-in-capital.
The Company repurchased common stock during the first six months of 2017, including 380,637 shares on June 6, 2017 from an underwriter in conjunction with an underwritten secondary offering by its largest shareholder, Red Mountain Partners, L.P., a fund that is affiliated with Red Mountain Capital Partners, LLC (“Red Mountain”), a related party, for an aggregate purchase price of $8.5 million. The share price of $22.42 was equal to the price per share paid by the underwriter to Red Mountain.


respectively.

NOTE N—SEGMENT AND REVENUE INFORMATION
The Company operates in twothree reportable segments. The CAM segment consists of the Company's aircraft leasing operations and its segment earnings include an allocation of interest expense. The ACMI Services segment consists of the Company's airline operations, including CMI agreements as well as ACMI and charter service agreements that the Company has with its customers. The MRO Services segment provides airframe maintenance services, aircraft modifications and other customers. Duemaintenance services. The MRO Services became reportable during 2018 due to the similarities among thesize of its revenues. Prior periods presented below have been prepared by separating MRO Services from "All other" for comparative purposes. The Company's airline operations, the airline operations are aggregated into a single reportable segment, ACMI Services. The Company'sground services and other activities, which include the mail and parcel handlingpackage sorting services, as well as hub managementmaintenance services for the USPS and AFS, the sale of aircraft parts, aircraft maintenance services, aircraft modifications, facility and ground equipment, services,facilities and material handling equipment, the sales of aviation fuel and other services, are not large enough to constitute reportable segments and are combined in “All other” with inter-segment profit eliminations.All other. Inter-segment revenues are valued at arms-length market rates. Cash and cash equivalents are reflected in Assets - All other below.
The Company's segment information for revenue from continuing operations is presented below (in thousands):
Three Months Ending Six Months Ending
Three Months Ending September 30, Nine Months Ending September 30,June 30, June 30,
2017 2016 2017 20162018 2017 2018 2017
Total revenues:              
CAM$58,465
 $46,346
 $155,973
 $145,511
$54,377
 $49,530
 $106,753
 $97,508
ACMI Services146,943
 128,702
 436,391
 357,803
119,606
 144,499
 238,980
 289,448
MRO Services45,794
 66,336
 98,517
 106,674
All other94,470
 65,328
 300,184
 177,592
19,730
 50,172
 39,013
 99,040
Eliminate inter-segment revenues(45,777) (47,115) (147,319) (133,711)(35,900) (57,326) (76,616) (101,542)
Total$254,101
 $193,261
 $745,229
 $547,195
$203,607
 $253,211
 $406,647
 $491,128
Customer revenues:              
CAM$40,940
 $27,920
 $104,102
 $86,068
$38,016
 $32,380
 $73,903
 $63,162
ACMI Services146,938
 128,702
 436,386
 357,803
119,589
 144,499
 238,963
 289,448
MRO Services29,069
 31,159
 60,009
 56,576
All other66,223
 36,639
 204,741
 103,324
16,933
 45,173
 33,772
 81,942
Total$254,101
 $193,261
 $745,229
 $547,195
$203,607
 $253,211
 $406,647
 $491,128
Depreciation and amortization expense:       
CAM$26,829
 $22,958
 $31,368
 $68,295
ACMI Services9,805
 10,528
 77,383
 30,300
All other971
 453
 3,077
 1,010
Total$37,605
 $33,939
 $111,828
 $99,605
Segment earnings (loss):       
CAM$19,445
 $16,110
 $45,570
 $51,849
ACMI Services(5,223) (9,686) (8,841) (27,172)
All other655
 5,089
 11,977
 13,087
Net unallocated interest expense(268) 83
 (655) (287)
Net loss on financial instruments(34,433) (8,473) (100,213) (3,443)
Charges for non-consolidating affiliates(945) 
 (945) 
Pre-tax earnings (loss) from continuing operations$(20,769) $3,123
 $(53,107) $34,034
The Company adopted Topic 606 for revenue recognition using a modified retrospective approach, under which financial statements are prepared under the revised guidance for the year of adoption, but not for prior years. The effects of Topic 606 on the Company's customer revenues are summarized below:
  For the three months ending For the six months ending
  June 30, 2018 June 30, 2018
  Revenue Revenue
  As Reported Without Topic 606 Increase (decrease) As Reported Without Topic 606 Increase (decrease)
ACMI Services $119,589
 $167,724
 $(48,135) $238,963
 $336,272
 $(97,309)
MRO Services 29,069
 28,549
 520
 60,009
 54,918
 5,091
Other (ground services) 16,933
 62,682
 (45,749) 33,772
 130,868
 (97,096)

ACMI Services revenues are generated from airline service agreements and are typically based on hours flown, the amount of aircraft operated and crew resources provided during a month. ACMI Services revenues are recognized over time as flight hours are performed for the customer. Certain agreements include provisions for incentive payments

based upon on-time reliability. These incentives are measured on a monthly basis and recorded to revenue in the corresponding month earned. Under CMI agreements, the Company's airlines have an obligation to provide integrated services including flight crews, aircraft maintenance and insurance for the customer's cargo network. Under ACMI agreements, the Company's airlines are also obligated to provide aircraft. Under CMI and ACMI agreements, customers are generally responsible for aviation fuel, landing fees, navigation fees and certain other flight expenses. When functioning as the customers agent for arranging such services, the Company records amounts reimbursable from the customer as revenues net of the related expenses as the costs are incurred. Under charter agreements the Company's airline is obligated to provide full services for one or more flights having specific origins and destinations. Under charter agreements, in which the Company's airline is responsible for fuel, airport fees and all flight services, the related costs are recorded in operating expenses. ACMI Services are invoiced monthly or more frequently.
MRO Services revenues for customer contracts for airframe maintenance and aircraft modification services that do not have an alternative use and for which the Company has an enforceable right to payment are generally recognized over time based on the percentage of costs completed. Other MRO Services revenues for aircraft part sales, component repairs and line service are recognized at a point in time typically when the parts are delivered to the customer and the the services are completed. For airframe maintenance, aircraft modifications and aircraft component repairs, contracts include assurance warranties that are not sold separately.
Effective January 1, 2018 the Company records revenues and estimated earnings for its airframe maintenance and aircraft modification contracts using the percentage-of-completion cost-to-cost method. For such services, the Company estimates the earnings on a contract as the difference between the expected revenue and estimated costs to complete a contract and recognizes revenues and earnings based on the proportion of costs incurred compared to the total estimated costs. The Company's estimates consider the timing and extent of the services, including the amount and rates of labor, materials and other resources required to perform the services. The Company recognizes adjustments in estimated earnings on a contract under the cumulative catch-up method in which the impact of the adjustment on estimated earnings of a contract is recognized in the period the adjustment is identified.
The Company's external customer revenues for providing mail and package sorting services and related equipment maintenance for the three and six month periods ending June 30, 2018 were $16.2 million and $32.3 million, respectively, compared to $44.7 million and $80.9 million for the corresponding periods in 2017. During the three and six month periods ended June 30, 2018, the Company netted $45.7 million and $97.1 million of customer reimbursable revenues against the related expenses when functioning as the customers agent for arranging ground services, respectively. These revenues are reported in All other. The Company's external customer revenues from providing mail and package sorting services are recognized as the services are performed for the customer over time. Revenues from related equipment maintenance services are recognized over time and at a point in time depending on the nature of the customer contracts.
Revenue is not recognized until collectibility of customer payment is probable. For customers that are not a governmental agency or department, the Company generally receives partial payment in advance of services, otherwise customer balances are typically paid within 30 to 60 days of service. For the three and six month periods ended June 30, 2018, the Company recognized $3.4 million and $8.0 million of non lease revenue that was reported in deferred revenue at the beginning of the respective period.
CAM's aircraft lease revenues are recognized as operating lease revenues on a straight-line basis over the term of the applicable lease agreements. Customer payments for leased aircraft and equipment are typically paid monthly in advance.



The Company's other segment information from continuing operations is presented below (in thousands):
 Three Months Ending Six Months Ending
 June 30, June 30,
 2018 2017 2018 2017
Depreciation and amortization expense:       
CAM$30,540
 $26,253
 $59,465
 $50,554
ACMI Services10,327
 10,491
 20,552
 21,563
MRO Services830
 685
 1,680
 1,359
All other(77) 352
 (73) 747
Total$41,620
 $37,781
 $81,624
 $74,223
Segment earnings (loss):       
CAM$15,394
 $12,795
 $30,858
 $26,125
ACMI Services991
 258
 4,932
 (3,276)
MRO Services1,321
 11,103
 5,783
 14,291
     All other2,749
 1,400
 5,330
 3,863
Inter-segment earnings eliminated(1,031) (5,958) (4,356) (6,820)
Net unallocated interest expense(838) (216) (1,657) (387)
Net gain (loss) on financial instruments11,697
 (67,649) 10,812
 (65,780)
Other non-service components of retiree benefit costs, net2,045
 (177) 4,090
 (354)
Loss from non-consolidated affiliate(2,417) 
 (4,953) 
Pre-tax earnings from continuing operations$29,911
 $(48,444) $50,839
 $(32,338)
The Company's assets are presented below by segment (in thousands):
September 30, December 31,June 30 December 31
2017 20162018 2017
Assets:      
CAM$1,140,559
 $971,986
$1,214,986
 $1,192,890
ACMI Services175,963
 164,489
190,309
 189,379
MRO Services99,129
 87,177
All other170,381
 122,855
13,050
 79,398
Total$1,486,903
 $1,259,330
$1,517,474
 $1,548,844
Interest expense allocated to CAM was $4.0$4.5 million and $10.9$9.0 million for the three and ninesix month periods ending SeptemberJune 30, 2017,2018, respectively, compared to $2.93.5 million and $7.8$6.9 million for the corresponding periods of 2016, respectively.2017.
The Company's external customers revenues from other activities for the three and nine month periods ended September 30, 2017 and 2016 are presented below (in thousands):
  Three Months Ended Nine Months Ended
  September 30, September 30,
  2017 2016 2017 2016
Mail and package handling services $48,283
 $23,502
 $123,564
 $62,553
Aircraft maintenance, modifications and part sales 13,915
 8,958
 70,492
 30,217
Facility and ground equipment services 3,625
 3,780
 9,528
 9,281
Other 400
 399
 1,157
 1,273
Total customer revenues $66,223
 $36,639
 $204,741
 $103,324



ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
The following Management’s Discussion and Analysis has been prepared with reference to the historical financial condition and results of operations of Air Transport Services Group, Inc., and its subsidiaries. Air Transport Services Group, Inc. and its subsidiaries may hereinafter individually and collectively be referred to as "the Company", "we", "our" or "us" from time to time. The following discussion and analysis describes the principal factors affecting the results of operations, financial condition, cash flows, liquidity and capital resources. It should be read in conjunction with the accompanying unaudited condensed consolidated financial statements and the related notes prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") contained in this report and our Annual Report on Form 10-K for the year ended December 31, 2016.2017.

INTRODUCTION
The Company leases aircraft, provides air cargo lifttransportation and performs aircraft maintenance and other support services primarily to the air cargo transportation and package delivery industries. Through the Company's subsidiaries, we offer a range of complementary services to delivery companies, freight forwarders, e-commerce operators, airlines and government customers. The Company'sOur principal subsidiaries include two independently certificated airlines, ABX Air, Inc. (“ABX”) and, Air Transport International, Inc. (“ATI”), and an aircraft leasing company, Cargo Aircraft Management, Inc. (“CAM”) and Airborne Maintenance and Engineering Services, Inc. ("AMES"). ABX and ATI are two independently certificated airlines. CAM provides competitive aircraft lease rates by converting passenger aircraft into cargo freighters and offering them to customers under long-term leases. AMES provides aircraft maintenance and modification services.
The Company has twoWe have three reportable segments: CAM, which leases Boeing 767, Boeing 757 and Boeing 757737 aircraft and aircraft engines, and ACMI Services, which primarily includes the cargoair transportation operations of the Company's two airlines. The ACMIairlines, and MRO Services, segmentwhich provides airline operations to its customers. Services include a combination of aircraft crews, maintenance and insurance through "CMI" and "ACMI" agreements and through charter contracts in which aviation fuel is also included. The Company'smodification services to customers. Our other business operations, which primarily provide support services to the transportation industry, include aircraft maintenance, aircraft parts sales, groundmail and material handlingpackage sorting services as well as related equipment maintenance and mail handling services. These operations do not constitute reportable segments due to their size.
DHL
The Company has had long-term contracts withOur largest customers are DHL Network Operations (USA), Inc. and its affiliates ("DHL"), Amazon.com Services, Inc. ("ASI"), successor to Amazon Fulfillment Services, Inc., a subsidiary of Amazon.com, Inc. ("Amazon"), and the U.S. Military.
DHL
The Company has had long-term contracts with DHL since August 2003. DHL accounted for 25%28% of the Company's consolidated revenues for the first ninesix months of 2017,2018, compared with 35%30% of the Company's consolidated revenues excluding directly reimbursed revenues in the corresponding period in 2016.2017. As of SeptemberJune 30, 2017,2018, the Company, through CAM, leased 16 Boeing 767 aircraft to DHL, 1211 of which were being operated by the Company's airlines for DHL under a crew, maintenance and insurance agreement and fourfive aircraft which are operated by a DHL-affiliated airline in the Middle East. Additionally, ATI operated four CAM-owned Boeing 757 aircraft under other operating arrangements with DHL.
Amazon
The Company has been providing freighter aircraft, operating flight services and services forarranging cargo handling and logistical support for Amazon Fulfillment Services, Inc. ("AFS"), a subsidiary of Amazon.com, Inc. ("Amazon")ASI since September 2015. On March 8, 2016, the Company entered into an Air Transportation Services Agreement (the “ATSA”) with AFSASI pursuant to which CAM agreed to lease 20 Boeing 767 freighter aircraft to AFS,ASI, including 12 Boeing 767-200 freighter aircraft for a term of five years and eight Boeing 767-300 freighter aircraft for a term of seven years.
The ATSA, which has a term of five years, provides for the operation of those aircraft by the Company’s airline subsidiaries, and the performance of ground handling services by the Company's subsidiary, LGSTX Services, Inc. ("LGSTX"). CAM owns all of the Boeing 767 aircraft that are leased and operated under the ATSA. The ATSA became effective on April 1, 2016.
Revenues from continuing operations performed for AFSASI comprised approximately 42%29% of the Company's consolidated revenues from continuing operations for the first ninesix months of 2017,2018, compared with 24%26% of the Company's consolidated revenues, from continuing operationsexcluding directly reimbursed revenues, during the corresponding period in 2016.2017.
In conjunction with the execution of the ATSA, the Company and Amazon entered into an Investment Agreement and a Stockholders Agreement on March 8, 2016. The Investment Agreement calls for the Company to issue warrants in three tranches which will grant Amazon the right to acquire up to 19.9% of the Company’s pre-transaction outstanding common

shares as described below. The first tranche of warrants, issued upon execution of the Investment Agreement, granted Amazon the right to purchase approximately 12.81 million ATSG common shares, with the right to purchase 7.69 million common shares vesting upon issuance on March 8, 2016, and the right to purchase the remaining 5.12 million common shares vesting as the Company delivered additional aircraft leased under the ATSA, or as the Company achieved specified revenue targets in connection with the ATSA. The second tranche of warrants grants Amazon a right to purchase approximately 1.59 million ATSG common shares, and will be issued and vest on March 8, 2018. The third tranche of warrants will be issued and vest on September 8, 2020. The third tranche of warrants will grant Amazon the right to purchase such additional number of ATSG common shares as is necessary to bring Amazon’s ownership to 19.9% of the Company’s pre-transaction outstanding common shares measured on a GAAP-diluted basis, adjusted for share issuances and repurchases by the Company following the date of the Investment Agreement and after giving effect to the warrants granted. The exercise price of the warrants will beis $9.73 per share, which represents the closing price of ATSG’sthe Company’s common shares on February 9, 2016. Each of the three tranches of warrants will be exercisable in accordance with its terms through March 8, 2021.
The Company’sOur accounting for the warrants issued to Amazon has been determined in accordance with the financial reporting guidance for equity-based payments to non-employees and for financial instruments. The fair value of the warrants issued or issuable to Amazon isare recorded as a lease incentive asset and isare amortized against revenues over the duration of the aircraft leases. The warrants are accounted for as financial instruments, and accordingly, the fair value of the outstanding warrants are measured and classified in liabilities at the end of each reporting period. The Company's earnings in future periods will beare impacted by the number of warrants granted, the fair value re-measurement of warrants at the end of each period, lease incentive amortizationsamortization and the related income tax effects. For income tax calculations, the value and timing of
related tax deductions will differ from the guidance described above for financial reporting. For additional information about the accounting for the warrants, see Note B to the accompanying unaudited condensed consolidated financial statements.
U.S. Military
The U.S. Military comprised 7%11% and 13%10% of the Company's consolidated revenues from continuing operationsexcluding directly reimbursed revenues during the ninesix month periods ending SeptemberJune 30, 2018 and 2017, and 2016, respectively. Revenues fromThe Company's airlines contract their services to the Air Mobility Command ("AMC"), through the U.S. MilitaryTransportation Command ("USTC"), both of which are primarily fororganized under the operationU.S. Military.
Fleet Summary 2018
As of June 30, 2018, the combined operating fleet of owned freighter aircraft consisted of 34 Boeing 767-200 aircraft, 29 Boeing 767-300 aircraft, four Boeing 757-200 aircraft, four Boeing 757 "combi" aircraft whichand two Boeing 737-400 aircraft. The Boeing 757 combi aircraft are capable of simultaneously carrying passengers and cargo containers on the main flight deck.
Fleet Summary 2017
As of September At June 30, 2017, the combined operating fleet of owned freighter aircraft consisted of 36 Boeing 767-200 aircraft, 22 Boeing 767-300 aircraft, four Boeing 757-200 aircraft and four Boeing 757 "combi" aircraft. At September 30, 2017,2018, the Company owned sixfive Boeing 767-300 aircraft and two Boeing 737-400 aircraft that were either already undergoing or awaiting induction into the freighter conversion process.
Aircraft fleet activity during the first ninesix months of 20172018 is summarized below:
- CAM completed the modification of sixfive Boeing 767-300 freighter aircraft purchased in the previous year and began to lease fivefour of those aircraft which are being operated by ATI, under a multi-year leaseleases to AFS.external customers. CAM began to lease the sixthfifth aircraft to ATI.
- CAM completed the modification of one 737-400 freighter aircraft purchased the previous year and entered into a multi-year lease with an external customer.
- ABX returned one Boeing 767-300 freighter aircraft to CAM. That aircraft was then leased to an external customer under a multi-year lease and is being operated by ABX.
- CAM sold one Boeing 767-300 freighter aircraft, which was modified during 2016,under lease to AFS under a multi-year lease. ATI was separately contractedan external customer, to operate that aircraft.same external customer.
- CAM leased onepurchased four Boeing 767-200767-300 passenger aircraft for the purpose of converting the aircraft into a standard freighter which was being staged for leasing, to ATI.configuration.
- External lessees returned two Boeing 767-200 freighter aircraft which were operated by ABX. Two Boeing 767-200to CAM. Both of these aircraft were releasedare being prepped for redeployment to external customers.
- CAM purchased five Boeing 767-300 passenger aircraft during the first nine months of 2017 for the purpose of converting the aircraft into standard freighter configuration.
- The Company purchased two Boeing 737-400 passenger aircraft during the first nine months of 2017 for the purpose of converting the aircraft into standard freighter configuration.other lessees.

The Company’s cargo aircraft fleet is summarized below as of September 30, 2017 and December 31, 2016:
September 30, 2017 December 31, 2016June 30, 2018 December 31, 2017
ACMI
Services
CAMTotal ACMI
Services
CAMTotal
ACMI
Services
CAMTotal ACMI
Services
CAMTotal
In-service aircraft      
Aircraft owned      
Boeing 767-2007
29
36
 6
29
35
7
27
34
 7
29
36
Boeing 767-3004
18
22
 4
12
16
4
25
29
 4
21
25
Boeing 757-2004

4
 4

4
4

4
 4

4
Boeing 757-200 Combi4

4
 4

4
4

4
 4

4
Boeing 737-400
2
2
 
1
1
Total19
47
66
 18
41
59
19
54
73
 19
51
70
Other aircraft      
Owned Boeing 767-300 under modification
6
6
 
7
7

5
5
 
6
6
Owned Boeing 737-400 under modification
2
2
 





 
1
1
Owned Boeing 767 available or staging for lease


 
1
1

2
2
 


As of SeptemberJune 30, 2017,2018, ABX and ATI were leasing 19 in-service aircraft internally from CAM for use in ACMI Services. As of SeptemberJune 30, 2017, six2018, four of CAM's 2927 Boeing 767-200 aircraft and seven of the 25 Boeing 767-300 aircraft shown in the aircraft fleet table above and six of the 18 Boeing 767-300 aircraft were leased to DHL and operated by ABX. Additionally, twelve12 of CAM's 2927 Boeing 767-200 aircraft and eight of CAM's 1825 Boeing 767-300 aircraft were leased to AFSASI and operated by ABX or ATI. CAM leased theThe other eleven11 Boeing 767-200 aircraft leased to external customers include five Boeing 767-200 aircraft leased to DHL and fouroperated by a DHL-owned airline. One of the other 10 Boeing 767-300 aircraft leased to external customers including four Boeing 767-200 aircraft to DHL that are beingwas operated by a DHL-affiliated airline.ATI. The carrying values of the total in-service fleet as of SeptemberJune 30, 2017 was $881.6 million compared to $793.9 million as of2018 and December 31, 2016.2017 were $998.7 million and $955.2 million, respectively. The table above does not reflect one Boeing 767-200 passenger aircraft owned by CAM.

RESULTS OF OPERATIONS
Summary
External customer revenues from continuing operations increaseddecreased by $60.8$49.6 million to $254.1$203.6 million and increaseddecreased by $198.0$84.5 million to $745.2$406.6 million for the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to the corresponding periods of 2016. Excluding2017. Effective January 1, 2018, the Company adopted Accounting Standards Update ("ASU") No. 2014-09, “Revenue from Contracts with Customers (Topic 606)” ("Topic 606”). As a result of adopting Topic 606 beginning January 1, 2018, the Company reported certain revenues net of related expenses that are directly reimbursed by customers. Corresponding 2017 revenues include such expense reimbursements. Excluding revenues directly reimbursed in 2017, customer revenues increased $49.1$11.5 million, or 6% and $146.0$31.0 million, or 8% during the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared towith the corresponding periods of 2016.2017. External customer revenues increased primarily due to additional aircraft leases and expanded CMI and logistics services for AFS and aircraft maintenance and modification services for various customers.services.

The consolidated net lossesearnings from continuing operations were $28.2$24.5 million and $72.4$40.1 million for the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to earningsnet losses of $2.1$53.9 million and $21.8$44.1 million for the corresponding periods of 2016.2017. The pre-tax lossesearnings from continuing operations were $20.8$29.9 million and $53.1$50.8 million for the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to pre-tax earningslosses of $3.1$48.4 million and $34.0$32.3 million for the corresponding periods of 2016.2017. Earnings were affected by specific events and certain adjustments that do not directly reflect our underlying operations among the years presented. Net earnings from continuing operations for 2018 benefited from a lower effective tax rate due to The Tax Cuts and Jobs Acts ("Tax Act") which was enacted on December 22, 2017. On a pre-tax basis, earnings included net lossesgains of $34.4$11.7 million and $100.2$10.8 million for the three and nine month periodssix months ended SeptemberJune 30, 2017,2018, respectively, for the re-measurement of financial instruments, including the warrant obligations granted to Amazon, to fair value.Amazon. This compares to pre-tax losses for re-measurementsre-measurement of $8.5such financial instruments of $67.6 million and $3.4$65.8 million for the corresponding periods of 2016.2017. Pre-tax earnings were also reduced by $3.9$4.2 million and $9.8$8.5 million for the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, for the amortization of lease incentives given to AFSASI in the form of warrants, compared to $1.4$3.3 million and $2.4$5.9 million for the corresponding periods of 2016.2017. Additionally, pre-tax earnings from continuing operations included expensesgains of $5.5$2.0 million and $5.9$4.1 million for the three and ninesix month periods ending Septemberended June 30, 2017,2018, respectively, for settlement charges and otherthe non-service components of retiree benefit plans, compared to $2.2losses of $0.2 million and $6.6$0.4 million for the corresponding periods of 2016.2017. Pre-tax earnings for the third quarterthree and six month periods ending June 30, 2018 included losses of 2017 included a $0.9$2.4 million chargeand $5.0 million, respectively, for the Company's share of development costs for a new

joint venture. Pre-tax earnings for the first quarter of 2016 also included a $1.2 million charge for the Company's share of capitalized debt issuance costs that were charged off when West Atlantic AB, a non-consolidated affiliate, restructured its debt. After removing the effects of these items, adjusted pre-tax earnings from continuing operations, a non-GAAP measure (a definition and reconciliation of adjusted pre-tax earnings from continuing operations follows) were $24.0increased $0.1 million and $63.7$9.7 million to $22.8 million and $49.3 million for the three and nine monthssix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to $15.2 million and $47.7 million for 2016.2017.
Adjusted pre-tax earnings from continuing operations for the third quarter and first nine monthshalf of 20172018 improved compared to 2016,2017, driven primarily by additional aircraft lease revenues and the improved financial results of our airline operations. We also experienced additionalThe pre-tax results included reduced earnings from MRO Services due to a lower level of recognized revenues and earnings duea mix of lower margin services through the first half of 2018 compared to 2017. Results for the acquisitionthree and six month periods ended June 30, 2018 included an additional pre-tax interest expense of Pemco World Air Services, Inc. ("Pemco") in December 2016$2.1 million and $4.1 million, respectively, for the expansionamortization of gateway operations for AFS since June of 2016. This growth in revenue was partially offset by the cost necessary to support expanded flight operations, including training costs related to new flight crews, higher aircraft depreciation expenseconvertible debt discount and more employee expenses, particularly in support of logistical services.issuance costs.

A summary of our revenues and pre-tax earnings from continuing operations,and adjusted pre-tax earnings from continuing operations (a non-GAAP measure), and a non-GAAP reconciliation, is shown below (in thousands):
Three Months Ending Six Months Ending
Three Months Ending September 30, Nine Months Ending September 30,June 30, June 30,
2017 2016 2017 20162018 2017 2018 2017
Revenues from Continuing Operations:              
CAM              
Aircraft leasing and related revenues$62,351
 $47,778
 $165,733
 $147,877
Aircraft leasing and related services$58,603
 $52,813
 115,205
 103,382
Lease incentive amortization(3,886) (1,432) (9,760) (2,366)(4,226) (3,283) (8,452) (5,874)
Total CAM58,465
 46,346
 155,973
 145,511
54,377
 49,530
 106,753
 97,508
ACMI Services       119,606
 111,851
 238,980
 219,917
Airline services112,203
 105,747
 332,120
 305,587
Reimbursable34,740
 22,955
 104,271
 52,216
Total ACMI Services146,943
 128,702
 436,391
 357,803
MRO Services45,794
 66,336
 98,517
 106,674
Other Activities94,470
 65,328
 300,184
 177,592
19,730
 21,706
 39,013
 53,104
Total Revenues299,878
 240,376
 892,548
 680,906
239,507
 249,423
 483,263
 477,203
Eliminate internal revenues(45,777) (47,115) (147,319) (133,711)(35,900) (57,326) (76,616) (101,542)
Customer Revenues - non reimbursed$203,607
 $192,097
 $406,647
 $375,661
Revenues for reimbursed expenses
 61,114
 
 115,467
Customer Revenues$254,101
 $193,261
 $745,229
 $547,195
$203,607
 $253,211
 $406,647
 $491,128
              
              
Pre-Tax Earnings (Loss) from Continuing Operations:              
CAM, inclusive of interest expense$19,445
 $16,110
 $45,570
 $51,849
$15,394
 $12,795
 30,858
 26,125
ACMI Services(5,223) (9,686) (8,841) (27,172)991
 258
 4,932
 (3,276)
MRO Services1,321
 11,103
 5,783
 14,291
Other Activities655
 5,089
 11,977
 13,087
2,749
 1,400
 5,330
 3,863
Inter-segment earnings eliminated(1,031) (5,958) (4,356) (6,820)
Net unallocated interest expense(268) 83
 (655) (287)(838) (216) (1,657) (387)
Net financial instrument re-measurement loss(34,433) (8,473) (100,213) (3,443)
Charges for non-consolidated affiliate(945) 
 (945) 
Net financial instrument re-measurement (loss) gain11,697
 (67,649) 10,812
 (65,780)
Other non-service components of retiree benefit costs, net2,045
 (177) 4,090
 (354)
Loss from non-consolidated affiliate(2,417) 
 (4,953) 
Pre-Tax Earnings (Loss) from Continuing Operations(20,769) 3,123
 (53,107) 34,034
29,911
 (48,444) 50,839
 (32,338)
Add other non-service components of retiree benefit costs, net5,529
 2,203
 5,883
 6,609
(2,045) 177
 (4,090) 354
Add charges for non-consolidated affiliate945
 
 945
 1,229
2,417
 
 4,953
 
Add lease incentive amortization3,886
 1,432
 9,760
 2,366
4,226
 3,283
 8,452
 5,874
Add net loss on financial instruments34,433
 8,473
 100,213
 3,443
Add net loss (gain) on financial instruments(11,697) 67,649
 (10,812) 65,780
Adjusted Pre-Tax Earnings from Continuing Operations$24,024
 $15,231
 $63,694
 $47,681
$22,812
 $22,665
 $49,342
 $39,670
Adjusted pre-tax earnings from continuing operations, a non-GAAP measure, is pre-tax earnings excluding settlement charges and other non-service components of retiree benefit plans,costs, gains and losses for the fair value re-measurement of financial instruments, lease incentive amortizations and the start-up costs of a non-consolidated joint venture and the charge off of debt issuance costs from a non-consolidated affiliate during the first quarter of 2016.venture. We exclude these items from adjusted pre-tax earnings because they are distinctly different in their predictability or not closely related to our on-going operating activities. Management uses adjusted pre-tax earnings to compare the

performance of core operating results between periods. Presenting this measure provides investors with a comparative metric of fundamental operations while highlighting changes to certain items among periods. Adjusted pre-tax earnings should not be considered in isolation or as a substitute for analysis of the Company's results as reported under GAAP.
ACMI Reimbursable revenues shown above include revenues related toEffective January 1, 2018, we adopted Topic 606 using a modified retrospective approach, under which financial statements are prepared under the revised guidance for the year of adoption, but not for prior years. We determined

that under Topic 606, the Company is an agent for aircraft fuel landing fees, navigation fees and certain other operating costs reimbursed under its ACMI and CMI contracts and for certain ground services that it arranges for ASI. Under the new standard, such reimbursed amounts are reported net of the corresponding expenses beginning in 2018. Revenues for the three and six month periods ended June 30, 2017 included $61.1 million and $115.5 million for reimbursable revenues under its ACMI and CMI contracts and for directly reimbursed toground services, which, under the airlines by their customers.new standard, have been reported net of the related expenses in 2018.
CAM Segment
CAM offers aircraft leasing and related services to external customers and also leases aircraft internally to the Company's airlines. CAM acquires passenger aircraft and manages the modification of the aircraft into freighters. The follow-on aircraft leases normally cover a term of five to eight years. In a typical leasing agreement, customers pay rent and maintenance deposits on a monthly basis.
As of SeptemberJune 30, 2018 and 2017, CAM had a fleet of 66 cargo aircraft in service condition, 19 of them leased internally to the Company's airlines54 and 47 leased to external customers. CAM has added eight aircraft to its operating fleet since October 1, 2016.
As of September 30, 2017 and 2016, CAM had 47 and 3845 aircraft under lease to external customers, respectively. CAM's revenues grew by $4.8 million and $9.2 million for the three and six month periods ended June 30, 2018, respectively, compared to the corresponding periods of 2017, primarily as a result of additional aircraft leases. Revenues from external customers totaled $40.9$38.0 million and $104.1$73.9 million for the three and ninesix month periods ending Septemberended June 30, 2017,2018, respectively, compared to $27.9$32.4 million and $86.1$63.2 million for the corresponding periods of 2016.2017. CAM's revenues from the Company's airlines totaled $17.5$16.4 million and $51.2$32.9 million for the three and ninesix month periods ending Septemberended June 30, 2017,2018, respectively, compared to $18.4$17.2 million and $59.4$34.3 million for the corresponding periods of 2016,2017, reflecting the transition of CAM ownedCAM-owned aircraft to long-term leases with external customers. CAM's aircraft leasing and related services revenues, which excludesexclude customer lease incentive costs,amortization, increased $14.6$5.8 million and $17.9$11.8 million during the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to the corresponding periods of 2016,2017, primarily as a result of new aircraft leases since Octoberleases. Since July 1, 2016, additional engine maintenance agreements2017, CAM has added ten Boeing 767-300 freighter aircraft and the timingtwo Boeing 737-400 freighter aircraft to its lease portfolio.
CAM's pre-tax earnings, inclusive of maintenance related revenues. CAM's revenues related to maintenance increased $7.5internally allocated interest expense, were $15.4 million and $2.3$30.9 million during the three and six month periods ended June 30, 2018, respectively, compared to $12.8 million and $26.1 million during the corresponding periods of 2017. Increased pre-tax earnings reflect additional external lease revenues. These increases were partially offset by increases in internally allocated interest expense of $0.9 million and $2.1 million for the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to the corresponding periods of 2016. CAM's revenues related to maintenance can vary among periods2017 due to the timing of customer maintenance events.
CAM'shigher debt levels. The pre-tax earnings were reducedalso partially offset by the increased amortization for the value of warrants issued to Amazon as a lease incentive. The amortization of the ASI lease incentive increased by $2.5of $0.9 million and $7.4$2.6 million for the three and nine monthssix month periods ended SeptemberJune 30, 20172018, respectively, compared to the corresponding periods of 2016 due to additional vesting of warrants and a higher value of warrants at the time of vesting. CAM's pre-tax earnings, inclusive of an interest2017. Depreciation expense allocation, were $19.4increased by $4.3 million and $45.6$8.9 million duringfor the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to $16.1 million and $51.8 million during the corresponding periods of 2016. Increased earnings for2017 driven by the third quarter reflect additionaladdition of nine Boeing aircraft leases and the timing of customer maintenance revenues and related expenses. Decreased earnings forin the first nine months reflect more amortizationhalf of the value of warrants issued2018 compared to Amazon as a lease incentive, higher depreciation expense for eight additional Boeing 767-300 aircraft, the interruption of lease revenues when transitioning aircraft between customers and increased interest allocation due to the higher debt levels.2017.
During the first ninesix months of 2017,2018, CAM purchased fivefour 767-300 passenger aircraft for freighter conversion. CAM also sold one Boeing 767-300 aircraft which had been under a long-term lease to an external customer. As of SeptemberJune 30, 2017,2018, all fivefour of these Boeing 767-300 passenger aircraft and one otherthe Boeing 767-300 passenger aircraft purchased in 20162018 and one Boeing 767-300 passenger aircraft purchased during 2017 were being modified from passenger to freighter configuration. The Company also purchased two Boeing 737-400 aircraft during the first nine months of 2017, and these aircraft are currently being modified from passenger to freighter configuration.
CAM's agreement to lease 20 Boeing 767 freighter aircraft to AFS includes 12 Boeing 767-200 freighter aircraft for a term of five years and eight Boeing 767-300 freighter aircraft for a term of seven years. Leases for six of these aircraft began in April 2016 and the remaining fourteen were executed as of September 1, 2017, to fulfill the 20 aircraft requirement for AFS.
CAM expects to complete through the third quarter of 2018, the freighter modification of eightthe five passenger aircraft which it owns. Whileowned at June 30, 2018 during the second half of 2018. CAM has customer commitments or letters of intent for mostthree of these aircraft,five aircraft. CAM's future operating results will depend on the timing and lease rates under which these aircraft are ultimately leased. CAM's

operating results will depend on its continuing ability to convert passenger aircraft into freighters within planned costs and within the time frames of customers' needs. Additionally, CAM's operating results will be negatively impactedrequired by the amortization of warrants issuable to Amazon as a lease incentive.customers.
ACMI Services Segment
The ACMI Services segment provides airline operations to its customers, typically under contracts providing for a combination of aircraft, crews, maintenance and insurance ("ACMI"). Our customers are usually responsible for supplying the necessary aviation fuel and cargo handling services and reimbursing our airline for other operating expenses such as landing fees, ramp expenses, certain aircraft maintenance expenses and fuel procured directly by the airline. Aircraft charter agreements, including those for the U.S. Military, usually require the airline to provide full service, including fuel and other operating expenses for a fixed, all-inclusive price. As of SeptemberJune 30, 2017,2018, ACMI Services included 51 in-service aircraft, including 19 leased internally from CAM, 1211 CAM-owned freighter aircraft which are

under lease to DHL and operated by ABX under athe restated CMI agreement, and 20 CAM-owned freighter aircraft which are under lease to AFSASI and operated by ATI and ABX under the ATSA.ATSA and another CAM-owned freighter operated by ATI.
Total revenues from ACMI Services increased $18.2decreased $24.9 million and $78.6$50.5 million during the three and ninesix month periods ended SeptemberJune 30, 20172018, respectively, to $146.9$119.6 million and $436.4$239.0 million respectively, compared to the corresponding periods of 2016.2017. ACMI Services revenues for the three and six month periods ended June 30, 2017 included $32.6 million and $69.5 million, respectively, for the reimbursement of fuel and certain operating expenses. Such revenues for 2018 are reported net of expenses after the adoption of Topic 606. Airline services revenues from external customers, which do not include revenues for the reimbursement of fuel and certain operating expenses, increased $6.5$7.8 million and $26.5$19.1 million for the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to the corresponding periods of 2016.2017. Improved revenues were driven by additional aircraft operations for AFSASI and reflect ana 5% and 8% and 21% increase in billable block hours for both the three and ninesix month periods ended SeptemberJune 30, 2017, compared to the corresponding periods of 2016. In the third quarter of 2017, we added two CAM-owned Boeing 767-300 aircraft into ACMI Service for AFS. As of September 30, 2017, ACMI Services were operating seven more aircraft compared to September 30, 2016. Beginning in April 2016, in conjunction with the long-term leases executed between AFS and CAM, the related aircraft rent revenues for five aircraft operated for AFS during the first quarter of 2016 are reflected under CAM instead of ACMI Services.
ACMI Services had pre-tax losses of $5.2 million and $8.8 million during the three and nine month periods ended September 30, 2017, respectively, compared to pre-tax losses of $9.7 million and $27.2 million for the corresponding periods of 2016. Pre-tax results in 2017 compared to 2016 were affected by expanded revenues, the timing of scheduled airframe maintenance events, crew training and related expenses, and increased pension expenses. Scheduled airframe maintenance expense increased $0.9 million and decreased $3.1 million during the three and nine month periods ended September 30, 2017,2018, respectively, compared to the corresponding periods of 2016. Airframe2017. As of June 30, 2018, ACMI Services included the operation of two more CAM-owned aircraft compared to June 30, 2017.
ACMI Services had pre-tax earnings of $1.0 million and $4.9 million during the three and six month periods ended June 30, 2018, respectively, compared to pre-tax earnings of $0.3 million and losses of $3.3 million for the corresponding periods of 2017. Improved pre-tax results in 2018 compared to 2017 reflect higher revenues from additional aircraft and block hours offset by the cost of additional employees and aircraft maintenance expense varies depending uponexpenses to support the numberexpanded operations. In March 2018, ATI began to implement recently ratified an amendment to the collective bargaining agreement with its crewmembers. The amendments resulted in increased wages for the ATI crewmembers beginning in the second quarter of C-checks2018.
Effective January 1, 2018, we adopted ASU "Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost ("ASU 2017-07"). As a result of adopting ASU 2017-07, the scope of the checks required for those airframes scheduled for maintenance. Pension expensepre-tax earnings for ACMI Services includingdo not include the other non-service components of retiree benefit costs, increased $3.3 millioncosts.
ABX is negotiating with its flight crewmembers' collective bargaining unit. These negotiations could result in changes that may effect our productivity, employee compensation levels and decreased $0.8 million as actuarially determined for the three and nine month periods ending September 30, 2017, respectively, compared to the corresponding periodsmarketability of 2016. The pension expense in the third quarter of 2017 included a $5.3 million pre-tax charge for the settlement of certain retirement obligations through a third party group annuity contract.
Achieving longer termour services. Maintaining profitability in ACMI Services will depend on a number of factors, including customer flight schedules, revenue levels for airline services, crewmember productivity the level of pilotand pay, employee benefits, aircraft maintenance schedules and the number of aircraft we operate. Currently each
MRO Services Segment
MRO Services sells aircraft parts and provides aircraft maintenance and modification services through AMES and Pemco World Air Services, Inc. ("Pemco"), subsidiaries. Total revenues from MRO Services decreased $20.5 million and $8.2 million for the three and six month periods ended June 30, 2018, respectively, compared to the corresponding periods of 2017. External customer revenues for MRO Services decreased $2.1 million and increased $3.4 million during the Company's airlines are negotiatingthree and six month periods ended June 30, 2018, respectively, compared to the corresponding periods of 2017. During the second quarter of 2017, MRO Services completed significant aircraft modification services for CAM in conjunction with their respective flight crewmembers' collective bargaining units. These negotiations could resultaircraft leases and additional aircraft freighter conversions for external customers. The decline in changes that may effectrevenues for the productivitysecond quarter of 2018 also reflects the change in accounting standards beginning in 2018 after the adoption of Topic 606 to recognize certain aircraft maintenance and costsmodification services over time instead of our operations.upon completion. During 2017, revenues were recognized in large amounts upon completion and redelivery of an aircraft to the customer.
The pre-tax earnings from MRO Services decreased $9.8 million and $8.5 million during the three and six month periods ended June 30, 2018 to $1.3 million and $5.8 million, respectively, compared to the corresponding periods of 2017. The decline in MRO Services profitability reflects the lower level of revenue recognized and a mix of more lower margin maintenance services revenues during 2018.

Other Activities
We provide relatedother support services to our ACMI Services customers and other airlines by leveraging our knowledge and capabilities developed for our own operations over the years. The Company's aircraft maintenance, engineering and repair businesses, Airborne Maintenance and Engineering Services, Inc. ("AMES") and Pemco, sell aircraft parts and provide aircraft maintenance and modification services. We also provide mail and package sorting parcel handling and logistical support to the U.S. Postal Service (“USPS”) at five USPS facilities and arrange similar services tofor certain AFS hubs andASI gateway locations in the U.S. We provide othermaintenance for ground services for our own airlinesequipment, facilities and external customers, including the sale

ofmaterial handling equipment. We also resell aviation fuel the lease of ground equipment such as ground power unitsin Ohio and cargo loaders, as well as facility and equipment maintenance services.provide flight training.
External customer revenues from all other activities were $66.2$16.9 million and $204.7$33.8 million forduring the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to $36.6$45.2 million and $103.3$81.9 million for the corresponding periods of 2016. Revenues from our mail sorting, parcel handling and logistical support services increased $24.8 million and $61.0 million during2017. Customer revenues for the three and ninesix month periods ended SeptemberJune 30, 2017 included $28.5 million and $45.9 million, respectively, for the reimbursement of certain ground services that it arranges for ASI which are being net against expenses in 2018 after the adoption of Topic 606. Revenues from external customers, which do not include 2017 revenues for the reimbursement of certain ground services, increased $0.2 million and decreased $2.2 million for the three and six month periods ended June 30, 2018, respectively, compared to 2016, reflecting higher contractual costs and additional AFS locations. Additionally, airframe maintenance and modification revenues from external customers increasedthe corresponding periods of 2017. The decrease in revenue was driven by $5.0 million and $40.3 million during the three and nine month periods ended September 30,the termination of hub logistics services we provided through May of 2017 respectively, primarily due to the addition of Pemco, which was acquiredfor ASI at the end of 2016. Revenues from aircraft maintenance can vary among periods due to the timing of scheduled maintenance events and the completion level of work during a period.airport in Wilmington, Ohio.
The pre-tax earnings from other activities decreased by $4.4increased $1.3 million and $1.1$1.5 million during the three and ninesix month periods ended SeptemberJune 30, 20172018 to $0.7$2.7 million and $12.0$5.3 million, respectively, compared to the corresponding periods in 2016, principally reflecting the termination of aircraft fueling2017. Additional earnings from higher contractual costs and hub logistics services we provided for Amazonincreased volumes at the airport in Wilmington, Ohio through May of 2017,USPS and ASI locations as well as earnings from an airline affiliate accounted for under the timingequity method were offset by reduced ground services and aviation fuel sales after ASI discontinued its hub in Wilmington, Ohio.
During June of completion2018, we began to provide cargo handling and related ground support services directly to ASI at one of airframe services. Revenuesits gateway locations. The contracts for five USPS facilities we service have been extended from their original expiration dates and are currently scheduled airframe maintenance and modification services are recognized by our subsidiaries whento expire during September 2018. We understand the customer workUSPS is completed.evaluating alternatives for these facilities. The contract for some or all of these may not be renewed.
Discontinued Operations
Pre-tax results related to former sorting operations were a $6.7 million loss and a $0.2 million gain for the first nine months of 2017 and 2016, respectively. Results in the third quarter of 2017 included a $7.6 million pre-tax charge for the settlement of certain retirement obligations through a third party group annuity contract. The financial results of discontinued operations primarily reflect the effects of defined benefit pension plansbenefits for former employees that supported sortpreviously associated with ABX's former freight sorting and aircraft fueling services provided to DHL. Pre-tax earnings related to the former sorting operations under a former hub service agreement with DHL.were $0.5 million and $0.6 million for the first six months of 2018 and 2017, respectively.
Expenses from Continuing Operations
Salaries, wages and benefits expense increased $7.3$8.2 million and $39.9$6.5 million during the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to the corresponding periods of 2016. The increase in expense2017. Expenses for the third quarter of 2017 reflectsthree and six month periods ended June 30, 2018, increased due to higher flight crew wages in conjunction with an amendment to the $5.3 million settlement charge for the pension plancollective bargaining agreement with its ATI crewmembers, additional employees and $4.7 million for Pemco acquired in December 2016, offset by a reduction in pilot premium pay from year-ago levels and the reduction in the number of employees for the Wilmington, Ohio logistics operation, which was terminated in May 2017. The increase in expense through the first nine months of 2017 also includes higher headcount for expanded flight operations and package handling services during the first half of 2017.additional aircraft maintenance technician time to support increased block hours.
Depreciation and amortization expense increased $3.7$3.8 million and $12.2$7.4 million during the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to the corresponding periods of 2016.2017. The increase in depreciation expense reflects incremental depreciation for eightten Boeing 767-300 aircraft and additionaltwo Boeing 737-400 aircraft engines added to the operating fleet since October, 2016, as well as capitalized heavy maintenance and navigation technology upgrades.July 1, 2017. We expect depreciation expense to increase during future periods in conjunction with our fleet expansion and capital spending plans.
Maintenance, materials and repairs expense increaseddecreased by $2.9$0.8 million and $10.0increased $5.8 million during the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to the corresponding periods of 2016.2017. The decrease in the second quarter of 2018 compared to 2017 was due to lower cost of material for the Company's MRO Services segment, offset by increased costs for airframe checks that are expensed by the Company's airlines. During the second quarter of 2017, MRO Services had an increased level of customer revenues and direct expenses compared to 2018. The increase is primarilyin maintenance, materials and repairs expense for the first six months of 2018 compared to 2017 was due to the addition of Pemco's maintenance and materials, which added $7.0 million and $21.1 million of expenses for the three and nine month periods ended September 30, 2017, respectively, compared to the corresponding periods of 2016. The additional expense from Pemco was partially offset by fewer airframe checks forthat are expensed by the Company's airlines and lower airframe maintenance costs for third party customers during 2017 comparedan increase in the cost of materials to 2016.support additional airline block hours and MRO Services. Aircraft maintenance expenses and materialsmaterial expenses can vary among periods due to the number of scheduled airframe maintenance checks and the scope of the checks that are performed. In May 2017, our airlines entered into maintenance agreements for certain General Electric CF6 engines that power many of the Boeing 767-300 aircraft leased from CAM. Under the agreement, the engines are maintained by the service provider for a fixed fee per cycle. As a result, beginning in June 2017, the airlines began to record engine maintenance expense as flights occur. As a result, we estimate that our airlines' engine maintenance expense will increase approximately $2.0 million per quarter with a partially offsetting reduction to engine depreciation expense.

Fuel expense increaseddecreased by $9.7$26.3 million and $43.0$55.4 million during the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to the corresponding periods of 2016.2017. In 2017, fuel expense included reimbursable fuel billed to DHL, ASI and other ACMI customers which is being netted against the revenue in 2018 after the adoption of Topic 606. The customer-reimbursed fuel for the three and six month periods ended June 30, 2017 was $28.4 million and $59.9 million, respectively. Fuel expense includes the cost of fuel to operate U.S. Military charters reimbursable fuel billed to DHL, AFS and other ACMI customers, as well as fuel used to position aircraft for service and for maintenance purposes. The increase inFuel expense, excluding customer reimbursed fuel expense was driven by a higher level of customer-reimbursed fuel which increased $11.3$2.1 million and $48.7$4.5 million for the three and ninesix month periods ended SeptemberJune 30, 2017, respectively,2018 compared to 2016. Fuel expense for military customers and other purposes declined2017 due to fewermore block hours flown for military customers in 2017.
Travel expense increased by $0.9 million and $5.6 million during the three and nine month periods ended September 30, 2017, respectively, compared to the corresponding periodsfirst half of 2016. The increase reflects additional aircraft in service and the higher level of employee headcount in airline operations during 2017 compared to 2016.2018.
Contracted ground and aviation services expense includes navigational services, aircraft and cargo handling services and other airport services. Contracted ground and aviation services increased $27.6decreased $29.7 million and $60.6$48.0 million during the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to the corresponding periods of 2016,2017. The decrease is primarily due to additional logistical supportthe netting of reimbursable revenues from certain ground services arranged for AFS gateways.
RentASI against the expense decreased by $0.3 million and increased by $1.6 million duringin 2018 due to the adoption of Topic 606. The customer-reimbursed expenses in the three and ninesix month periods ended SeptemberJune 30, 2017 respectively, compared to the corresponding periods of 2016. Rent expense increased due to the acquisition of Pemcowere $30.0 million and declined during the third quarter of 2017 due to a reduced need for aircraft simulators to train new flight crews.$48.6 million, respectively.
Landing and ramp expense, which includes the cost of deicing chemicals, increaseddecreased by $1.5$3.0 million and $4.8$7.2 million during the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to the corresponding periods of 2016, driven by additional flight operations. Landing2017. The decrease is primarily due to the netting of reimbursable revenues from landing and ramp fees can vary based onbilled to DHL, ASI and other ACMI customers against the flight schedules andexpense in 2018 due to the airports that are used in a period.adoption of Topic 606.
Other operating expenses increaseddecreased by $3.0$3.5 million and $6.2$4.3 million during the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to the corresponding periods of 2016.2017. Other operating expenses include professional fees, employee training and utilities. OtherThe decline in other operating expenses increased by $0.4 million and $2.3 million for 2018 includes gains related to the three and nine month periods ended September 30, 2017, respectively, for the additionsale of Pemco, acquired at the endequipment, improved operating results of 2016. Other operating expense also increased to support additional aircraft and customer block hours. Losses from a non-consolidatedan airline affiliate airline accounted for under the equity method increased $0.6 million and decreased by $0.7 millionlower expense for the three and nine month periods ended September 30, 2017, respectively,uncollectible customer accounts compared to the correspondingsame periods of 2016.2017.
Interest expense increased by $1.5$1.6 million and $3.4 million during the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to the corresponding periods of 2016.2017. Interest expense increased due to a higher average debt level and interest rates on the Company's outstanding loans, partially offset by more capitalizedloans. Capitalized interest relateddue to our fleet expansion. Capitalized interest increased $0.1 million and $0.6 millionexpansion was flat during the three and ninesix month periods ended SeptemberJune 30, 20172018, respectively, compared to $0.4 million and $1.5 million, respectively.
Future interestthe corresponding periods of 2017. Interest expense will bein the first half of 2018 was also impacted by the convertible notes issued in September 2017. The convertible notes have a principal value of $258.8 million and bear interest at a cash coupon rate of 1.125% and mature on October 15, 2024.. At the time of issuance, the value of the conversion feature of the convertible notes was recorded as a debt discount and is being amortized along with debt issuance costcosts to interest expense over the seven year term of the convertible notes. We expect theThe non-cash amortization of the debt discount and issuance costs will be approximately $2was $2.1 million and $4.1 million during the fourth quarterthree and six month periods ended June 30, 2018, respectively, compared to the corresponding periods of 2017. We received net proceeds of $234.7 million from the issuance of the convertible notes and related bond hedge and warrant transactions. Interest payments for the convertible notes will be $2.9 million annually and there are no scheduled principal payments until maturity, resulting in a combined cash financing rate of approximately 2.55%.
The Company recorded pre-tax net lossesgains on financial instruments of $34.4$11.7 million and $100.2$10.8 million forduring the three and ninesix month periods ended SeptemberJune 30, 2017,2018, respectively, compared to $8.5losses of $67.6 million and $3.4$65.8 million during the corresponding periodperiods of 2016. 2017.The 2017 lossesgains are primarily a result of re-measuring, as of SeptemberJune 30, 2017,2018, the fair value of the stock warrants granted to Amazon. An increaseA decrease in the fair value of the warrantswarrant obligation since the previous re-measurement dates of June 30, 2017March 31, 2018 and December 31, 2016,2017, corresponded to an increasea decrease in the traded price of the

Company's shares and resulted in the non-cash loss.losses. The non-cash gains and losses resulting from quarterly re-measurements of the financial instrumentswarrants may vary widely among quarters.
The provision for income taxes for interim periods is based on management's best estimate of the effective income tax rate expected to be applicable for the current year, plus any adjustments arising from changes in the estimated amount of taxable income related to prior periods. Income taxes recorded through SeptemberJune 30, 20172018, have been estimated utilizing a 24.3% rate based upon year-to-date income and projected annualized 39.6% rate, applied to year-to-date income.results for the full year. The recognition of discrete tax items, such as the conversion of employee stock awards, the issuance of stock warrants and other items have an impact on the effective tax rate during a period.
The effective tax rate from continuing operations for the three and ninesix month periods ended SeptemberJune 30, 20172018, was (35.9)%18.2% and (36.2)%and 21.0%, respectively. These effective tax rates reflectinclude deferred tax expense related to the non deductible tax treatment of certain warrants vesting for Amazon and certain warrant revaluation lossesre-measurement loss at the end of the period. The effective tax rates for the three and nine month periods ended September 30, 2017 are negative because the warrant revaluation losses do not generate a corresponding tax benefit for certain warrants. The effective tax rate withoutbefore including the effects of the warrants was 37.5%26.0% and 36.5%24.0% for the three and nine monthssix month periods ended SeptemberJune 30, 2017,2018, respectively. The effective tax rate from continuing operations, withoutbefore including

the effects of the warrants for the three and ninesix month periods ended SeptemberJune 30, 20162017 were 35.4%37.4% and 36.0%, respectively. The effective tax rate without includingdecreased for the effectsfirst half of 2018 due to the enactment of the warrants, increased for 2017 due to a lesser amount of discrete tax benefits related to state income taxes and employee stock incentive awards.Tax Act in December 2017.
As of December 31, 2016,2017, the Company had operating loss carryforwards for U.S. federal income tax purposes of approximately $40.2$57.6 million which will begin to expire in 2031 if not utilized before then. We expect to utilize the loss carryforwards to offset federal income tax liabilities in the future. As a result, we do not expect to pay federal income taxes until 20192023 or later. However, theThe Company may, however, be required to pay alternative minimum taxestax and certain state and local income taxes before then. The Company's taxable income earned from international flights are primarily sourced to the United States under international aviation agreements and treaties. When we operate in countries without such agreements, the Company could incur additional foreign income taxes.

FINANCIAL CONDITION, LIQUIDITY AND CAPITAL RESOURCES
Cash Flows
Net cash generated from operating activities totaled $191.3142.0 million and $143.6$124.8 million for the first ninesix months of 2018 and 2017, and 2016, respectively. CashImproved cash flows generated from operating activities increased during the first ninesix months of 2017, reflecting improved2018 were driven primarily by additional aircraft leases to customers, increased operating resultslevels of the ACMI Services segment and customer collections. Cash outlays for pension contributions for the first ninesix months of 20172018 were $4.1$1.8 million compared to $6.3$1.5 million for the corresponding period of 2016.2017.
Capital spending levels were primarily the result of aircraft modification costs and the acquisition of aircraft for freighter modification. Cash payments for capital expenditures were $218.8150.8 million and $182.1$144.3 million for the first ninesix months of 20172018 and 2016,2017, respectively. Capital expenditures in 20172018 included $159.4$116.6 million for the acquisition of fivefour Boeing 767-300 aircraft and two Boeing 737-400 aircraft and freighter modification costs; $36.2$19.3 million for required heavy maintenance; and $23.2$14.9 million for other equipment, including purchases of aircraft engines and rotables. Our capital expenditures during 20162017 included $133.1$96.7 million for the acquisition of ninethree Boeing 767-300 aircraft and two Boeing 737-400 aircraft and freighter modification costs and next generation navigation modifications; $20.5costs; $31.3 million for required heavy maintenance; and $28.5$16.3 million for other equipment, including purchases of aircraft engines and rotables.
During the first six months of 2018 we contributed an additional $5.2 million to a joint venture with Precision Aircraft Solutions, LLC, which is developing a passenger-to-freighter conversion program for Airbus A321-200 aircraft. During the first quarter of 2017 we paid $0.6 million to complete our acquisition of Pemco World Air Services, Inc.
Net cash provided by financing activities was $61.9$4.5 million for the first ninesix months of 20172018 compared to $68.0$56.9 million in 2016.2017. During the first ninesix months of 2017,2018, we drew $90.0$30.0 million from the revolving credit facility under the Senior Credit Agreement to fund capital spending.spending for aircraft acquisition and modifications. We made debt principal payments of $250.1 million during 2017. Our borrowing activities were necessary to acquire and modify aircraft for deployment into air cargo markets.
In September 2017, we received proceeds of $258.8 million from the issuance of convertible notes. In conjunction with the issuance of convertible notes, we received $38.5 million for the issuance of stock warrants and paid $56.1 million for related convertible note hedges. We paid issuance costs of $6.5 million for these transactions. The net proceeds from these transactions were $234.7 million, of which $205.0 million was used to pay down the balance of our revolving credit facility, thereby increasing the amount available for future draws under that facility. The convertible notes bear interest at a rate of 1.125% and mature on October 15, 2024, unless repurchased or converted in accordance

with their terms prior to such date. The convertible notes are unsecured indebtedness, subordinated to the Company's existing and future secured indebtedness and other liabilities, including trade payables. The convertible notes and the related transactions are described further in Note F of the accompanying condensed consolidated financial statements.$29.1 million.
During the first nine monthsquarter of 2017,2018, we spent $11.2 million to buy 530,637repurchased 157,000 shares of the Company's common stock pursuant to aan authorized share repurchase plan authorizedfor $3.6 million, of which $0.6 million was paid in 2014the first quarter and amended$3.0 million was paid in May 2016April 2018. The repurchase plan was amended by the Board of Directorsagain in February 2018 to increase the authorized share repurchase plan to up to $100$150 million of the Company's common stock.(less amounts previously repurchased).
Commitments
We estimate that capital expenditures for 20172018 will total $335$300 million of which $265 millionthe majority will be related to aircraft purchases and freighter modifications. Actual capital spending for any future period will be impacted by aircraft acquisitions, maintenance and modification processes. We expect to finance the capital expenditures from current cash balances, future operating cash flow and the Senior Credit Agreement. The Company outsources a significant portion of the aircraft freighter modification process to a non-affiliated third party. The modification primarily consists of the installation of a standard cargo door and loading system. For additional information about the Company's aircraft modification obligations, see Note H of the accompanying financial statements.
In September 2015,Since August 3, 2017, the Company entered intohas been part of a joint venture agreementjoint-venture with Precision Aircraft Solutions, LLC, to establish an express cargo airline serving multiple destinations withindevelop a passenger-to-freighter conversion program for Airbus A321-200 aircraft. We anticipate approval of a supplemental type certificate from the People's Republic of China (including Hong Kong, Macau and Taiwan) and surrounding countries, pending governmental approvals. The Company'sFAA in 2019. We expect to make contributions equal to the joint venture have been minimalCompany's 49% ownership percentage of the program's total costs during 2018 and are expected to remain so over the next several months. Obtaining required governmental approvals for any new airline has since been delayed and as a result, the Company is evaluating alternatives. The Company is seeking to develop other aircraft investments in China by leveraging the relationship developed by Pemco, which provides modified Boeing 737 freighter aircraft in China.2019.

Liquidity
The Company has a Senior Credit Agreement with a consortium of banks that includes an unsubordinated term loan of $74.3$63.1 million, net of debt issuance costs, and a revolving credit facility from which the Company hadhas drawn $220.0$257.0 million, net of repayments, as of SeptemberJune 30, 2017.2018. The revolving credit facility has a capacity of $545.0 million, permitted additional indebtedness of $300.0 million of which $258.8 million has been utilized for the issuance of convertible notes, and an accordion feature whereby the Company can draw up to an additional $100.0 million subject to the lenders' consent. The Senior Credit Agreement is collateralized by the Company's fleet of Boeing 767 and 757 aircraft that are not collateralized under aircraft loans.freighter aircraft. Under the amended terms of the Senior Credit Agreement, the Company is required to maintain collateral coverage equal to 125% of the outstanding balances of the term loan and the maximum capacity of the revolving credit facility or 150% of the outstanding balance of the term loan and the total funded revolving credit facility, whichever is less. The minimum collateral coverage which must be maintained is 50% of the outstanding balance of the term loan plus the revolving credit facility commitment which was $545.0 million. Each year, through May 6, 2019, the Company may request a one year extension of the final maturity date, subject to the lenders' consent. Absent such future extensions, the maturity date is currently set to expire on May 30, 2022.2023.
Under the Senior Credit Agreement, the Company is subject to covenants and warranties that are usual and customary including, among other things, limitations on certain additional indebtedness, guarantees of indebtedness, as well as a total debt to EBITDA ratio and a fixed charge coverage ratio. The Senior Credit Agreement stipulates events of default including unspecified events that may have a material adverse effect on the Company. If an event of default occurs, the Company may be forced to repay, renegotiate or replace the Senior Credit Agreement.
Additional debt or lower EBITDA may result in higher interest rates. Under the Senior Credit Agreement, interest rates are adjusted quarterly based on the prevailing LIBOR or prime rates and a ratio of the Company's outstanding debt level to EBITDA (earnings before interest, taxes, depreciation and amortization expenses). At the Company's current debt-to-EBITDA ratio, the unsubordinated term loan and the revolving credit facility both bear a variable interest rate of 3.24%3.6%.
At SeptemberJune 30, 2017,2018, the Company had $53.9$31.7 million of cash balances. The Company had $315.7$278.8 million available under the revolving credit facility, net of outstanding letters of credit, which totaled $9.3$9.2 million. We believe that the Company's current cash balances and forecasted cash flows provided from its operating agreements, combined

with its Senior Credit Agreement, will be sufficient to fund operations, capital spending, scheduled debt payments and required pension funding for at least the next 12 months.
Off-Balance Sheet Arrangements
As part of our ongoing business, we do not participate in transactions that generate relationships with unconsolidated entities or financial partnerships, such as entities often referred to as structured finance or special purpose entities (“SPEs”), which would have been established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. As of SeptemberJune 30, 20172018 and 2016,2017, we were not involved in any material unconsolidated SPE transactions.
Certain of our operating leases and agreements contain indemnification obligations to the lessor or one or more other parties that are considered usual and customary (e.g. use, tax and environmental indemnifications), the terms of which range in duration and are often limited. Such indemnification obligations may continue after the expiration of the respective lease or agreement. No amounts have been recognized in our financial statements for the underlying fair value of guarantees and indemnifications.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES
“Management’s Discussion and Analysis of Financial Condition and Results of Operations,” as well as certain disclosures included elsewhere in this report, are based upon our consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States of America. The preparation of these financial statements requires us to select appropriate accounting policies and make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosures of contingencies. In certain cases, there are alternative policies or estimation techniques which could be selected. On an ongoing basis, we evaluate our selection of policies and the estimation techniques we use, including those related to revenue recognition, post-retirement liabilities, bad debts, self-insurance reserves, valuation of spare parts inventory, useful lives, salvage

values and impairment of property and equipment, income taxes, contingencies and litigation. The Company bases its estimates on historical experience, current conditions and on various other assumptions that are believed to be reasonable under the circumstances. Those factors form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources, as well as for identifying and assessing our accounting treatment with respect to commitments and contingencies. Actual results may differ from these estimates under different assumptions or conditions.
For information regarding recently issued accounting pronouncements and the expected impact on our annual statements, see Note A "SUMMARY OF FINANCIAL STATEMENT PREPARATION AND SIGNIFICANT ACCOUNTING POLICIES" in the accompanying notes to the Condensed Consolidated Financial Statements included in Part I, Item 1 of this Form 10-Q.


ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
The Company is exposed to market risk for changes in interest rates and changes in the price of jet fuel. The risk associated with jet fuel, however, is largely mitigated by reimbursement through the agreements with our customers.
ChangesNo changes have occurred to the market risks the Company faces since information about those risks were disclosed in item 7A of the Company's 20162017 Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 8, 2017.1, 2018.

ITEM 4. CONTROLS AND PROCEDURES
(a) Evaluation of Disclosure Controls and Procedures
As of SeptemberJune 30, 20172018, the Company carried out an evaluation, under the supervision and with the participation of the Company's Chief Executive Officer and Chief Financial Officer of the effectiveness of the design and operation of the Company's disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the "Exchange Act")). Based upon the evaluation, the Company's Chief Executive Officer and Chief Financial Officer concluded that the Company's disclosure controls and procedures were effective to ensure that information required to be disclosed by the Company in the reports filed or submitted by it under the Exchange Act is recorded, processed, summarized and reported within time periods specified in the Securities and Exchange Commission rules and forms and is accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure.
(b) Changes in Internal Controls
There were no changes in internal control over financial reporting during the most recently completed fiscal quarter that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting.


PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS
The Company isWe are currently a party to legal proceedings including FAA enforcement actions, in various federal and state jurisdictions from time to time arising out of the operation of the Company's business. The amount of alleged liability, if any, from these proceedings cannot be determined with certainty; however, we believe that the Company believes that itsCompany's ultimate liability, if any, arising from the pending legal proceedings, as well as from asserted legal claims and known potential legal claims which are probable of assertion, taking into account established accruals for estimated liabilities, should not be material to our financial condition or results of operations.


ITEM 1A. RISK FACTORS
The Company faces risks that could adversely affect its condition or results of operations. Many of these risks are disclosed in Item 1A of the Company's 20162017 Annual Report on form 10-K, filed with the Securities and Exchange Commission on March 8, 2017.1, 2018. The risk factors presented below update, and should be considered in addition to, the risk factors previously disclosed in Item 1A of the Company's 20162017 Annual Report on Form 10-K. Other risks that are currently unknown to management or are currently considered immaterial or unlikely, could also adversely affect the Company.
On August 3, 2017 we entered into a joint-venture agreement with Precision Aircraft Solutions, LLC, to develop a passenger-to-freighter conversion program for Airbus A321-200 aircraft. We anticipate approval of a supplemental type certificate by the FAA in 2019. We expect to make contributions equal to our 49% ownership percentage of the program's total costs over the next two years and account for the investment in the joint venture under the equity method of accounting. While the joint venture is developing the conversion program, the Company's results will reflect non operating losses for our 49% share of the joint venture's development costs. The development costs may be larger than we expect and approval may take longer than anticipated. The benefits of our investment may be less than projected.
The convertible note hedge transactions and the warrant transactions that we entered into in September 2017 may affect the value of our common stock. In connection with the pricing of our 1.125% senior convertible notes due 2024 (the "Notes") and the exercise by the initial purchasers of their option to purchase additional Notes, we entered into privately-negotiated convertible note hedge transactions with the hedge counterparties. The convertible note hedge transactions cover, subject to customary anti-dilution adjustments, the number of shares of common stock that initially underlie the Notes. We also entered into separate, privately-negotiated warrant transactions with the hedge counterparties relating to the same number of shares of our common stock that initially underlie the Notes, subject to customary anti-dilution adjustments.
The hedge counterparties and/or their affiliates may modify their hedge positions with respect to the convertible note hedge transactions and the warrant transactions from time to time after the pricing of the Notes. They may do so by purchasing and/or selling shares of our common stock and/or other securities of ours, including the Notes in privately-negotiated transactions and/or open-market transactions or by entering into and/or unwinding various over-the-counter derivative transactions with respect to our common stock. The hedge counterparties are likely to modify their hedge positions during any observation period for the Notes.
The effect, if any, of these activities on the market price of our common stock will depend on a variety of factors, including market conditions, and cannot be determined at this time. Any of these activities could, however, adversely affect the market price of our common stock. In addition, the hedge counterparties and/or their affiliates may choose to engage in, or to discontinue engaging in, any of these transactions with or without notice at any time, and their decisions will be at their sole discretion and not within our control.
We are subject to counterparty risk with respect to the convertible note hedge transactions. The hedge counterparties are financial institutions, and we will be subject to the risk that they might default under the convertible note hedge transactions. Our exposure to the credit risk of the hedge counterparties is unsecured by any collateral. Global economic conditions have from time to time resulted in failure or financial difficulties for many financial institutions. If a hedge counterparty becomes subject to insolvency proceedings, we will become an unsecured creditor in those proceedings with a claim equal to our exposure at that time under our transactions with that hedge counterparty. Our exposure will depend on many factors but, generally, the increase in our exposure will be correlated to the increase in the market

price and volatility of our common stock. In addition, upon a default by a hedge counterparty, we may suffer adverse tax consequences and more dilution than we currently anticipate with respect to our common stock. We can provide no assurances as to the financial stability or viability of any hedge counterparty.
Conversion of the Notes or exercise of the warrants may dilute the ownership interest of stockholders. Any sales in the public market of the common stock issuable upon such conversion of the Notes or such exercise of the warrants could adversely affect prevailing market prices of our common stock. In addition, the existence of the Notes may encourage short selling by market participants because the conversion of the Notes could depress the price of our common stock.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
On August 5, 2014, the Board of Directors authorized the Company to repurchase up to $50.0 million of outstanding common stock. In May 2016, the Board amended the Company's common stock repurchase program increasing the amount that management may repurchase from $50.0 million to $100.0 million of outstanding common stock. In February 2018, the Board again amended the common stock repurchase program to increase the amount that management may repurchase to $150 million (less amounts previously repurchased). The Board's authorization does not require the Company to repurchase a specific number of shares and the Board may terminate the repurchase program at any time. Repurchases may be made from time to time in the open market or in privately negotiated transactions. There is no expiration date for the repurchase program. There were no repurchases made during the thirdsecond quarter of 2017.2018. As of SeptemberJune 30, 2017,2018, the Company has repurchased 6,435,3496,592,349 shares and has a maximum dollar value of shares that may yet be purchased under the program of $14.9$61.3 million.

ITEM 5. OTHER INFORMATION
(a)Severance Pay Plan for Senior Management
On November 3, 2017, the Board of Directors of the Company (the “Board”) adopted the Air Transport Services Group, Inc. Severance Pay Plan for Senior Management (the “Severance Plan”), which Severance Plan will cover certain designated key employees of the Company and its subsidiaries, including Messrs. Hete, Corrado, Payne and Turner, each a named executive officer of the Company.
The Severance Plan sets forth the terms and conditions of severance benefits to be provided to a covered employee in the event the covered employee experiences a covered termination.
Eligibility
The Board’s Compensation Committee will designate those key employees of the Company who are eligible for the Severance Plan pursuant to a participation agreement and will include in such participation agreement whether the level of participation of such employee is as a Tier I Participant, Tier II Participant, Tier III Participant or Tier IV Participant.
Severance on Account of Employment Termination
Under the terms of the Severance Plan, if a covered employee (i) is terminated by the Company for any reason other than for “Cause” (as defined in the Plan), death or disability, or (ii) in the case of Tier I and Tier II Participants only, resigns on account of “Good Reason” (as defined in the Plan), the covered employee will receive the following severance benefits:
 -A continuation of annual base salary for the covered employee’s Severance Period (as defined below);
-Pro rata annual incentive bonus for the fiscal year in which the covered employee’s employment termination occurs, which bonus will be paid at the same time that bonuses are paid under the applicable plan or policy; and
None.

-For the shorter of (a) the Severance Period and (b) 18 months following the covered employee’s termination date, a continuation of eligibility to participate in the Company’s medical, dental, vision and prescription drug plans in which the covered employee was participating (including the covered employee’s spouse and eligible dependents); provided that to receive such coverage, the covered employee must pay the amount that the covered employee would have been required to pay if such covered employee were employed by the Company at such time.
The severance benefits will be discontinued if it is determined that the covered employee has engaged in actions that constitute Cause or has breached the terms of the release, restrictive covenants or any other agreement relating to the covered employee’s employment with the Company or termination thereof. The Severance Period for Tier I Participants is 24 months, for Tier II Participants is 18 months, for Tier III Participants is 12 months, and for Tier IV Participants is six months.
Release
The receipt of severance benefits is conditioned upon the execution and non-revocation of a release of claims. The severance benefits will be discontinued if a covered employee breaches any term of the release.
Effect of a Change in Control Agreement or Employment Agreement
If a covered employee is also a party to a change in control agreement and there occurs a change in control that results in such covered employee being entitled to receive severance benefits thereunder, then the Severance Plan will cease to be applicable to such covered employee, with all payments and benefits to such covered employee arising out of any termination of the employment of such covered employee to be determined and paid in accordance with the terms of such change in control agreement. Similarly, if a covered employee is also a party to an employment agreement with the Company that provides for severance payments and benefits following termination of employment under the same or similar circumstances as are set forth in the Severance Plan, then the Severance Plan will not be applicable to such covered employee so long as such employment agreement is in effect.
Restrictive Covenants
As a condition for a covered employee to be eligible to participate in the Severance Plan, and to receive severance benefits under the Severance Plan, a covered employee must agree to comply with the restrictive covenants set forth in the Severance Plan, which restrictive covenants include (a) a confidential information disclosure restriction during the term of the covered employment and thereafter, (b) a non-competition restriction during the term of the covered employee’s employment and for the Restriction Period (as defined below) after such termination of employment and (c) a non-solicitation restriction applicable to the solicitation of actual or prospective customers and employees and contractors of the Company during the term of the covered employee’s employment and for the Restriction Period after such termination of employment. The Restriction Period for Tier I Participants is 24 months, for Tier II Participants is 18 months, for Tier III Participants is 12 months and for Tier IV Participants is six months. The severance benefits will be discontinued if a covered employee breaches any terms of the restrictive covenants.
Amendment and Termination
The Board or the Compensation Committee may amend, suspend or terminate the Severance Plan at any time; provided that (i) no amendment, suspension or termination may materially adversely affect a covered employee’s entitlements under the Severance Plan without the prior written consent of such adversely affected covered employee and (ii) no such amendment, suspension or termination will give the Company the right to recover any amount paid to a covered employee prior to the date of such amendment, suspension or termination or to cause the cessation and termination of payments of severance benefits to any person under the Severance Plan receiving severance benefits.
Terms for Initially Designated Covered Employees
In connection with the adoption of the Severance Plan, Mr. Hete was designated as being eligible to participate in the Severance Plan as a Tier I Participant and Messrs. Corrado, Payne and Turner were designated as being eligible to participate in the Severance Plan as Tier II Participants.
The foregoing description of the Severance Plan is qualified in its entirety by the provisions of the Severance Plan, a copy of which is filed herewith as Exhibit 10.21.

ITEM 6. EXHIBITS
The following exhibits are filed with or incorporated by reference into this report.
Exhibit No.Description of Exhibit
 
Instruments defining the rightsArticles of security holdersIncorporation
  
4.13.1
4.2
Material Contracts
10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.8
10.9
10.10
10.11
10.12
10.13
10.14
10.15

101.INSXBRL Instance Document
  
101.SCHXBRL Taxonomy Extension Schema Document
  
101.CALXBRL Taxonomy Extension Calculation Linkbase Document
  
101.DEFXBRL Taxonomy Extension Definition Linkbase Document
  
101.LABXBRL Taxonomy Extension Labels Linkbase Document
  
101.PREXBRL Taxonomy Extension Presentation Linkbase Document
____________________
(1)Incorporated by reference to the Company's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on May 8, 2017.
(2)Incorporated by reference to the Company's Form 8-K filed with the Securities and Exchange Commission on June 2, 2017.
(3)Incorporated by reference to the Company's Form 8-K filed with the Securities and Exchange Commission on September 25, 2017.
(4)Incorporated by reference to the Company's Form 8-K filed with the Securities and Exchange Commission on September 29, 2017.


SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this Quarterly report on Form 10-Q to be signed on its behalf by the undersigned, thereunto duly authorized.
    AIR TRANSPORT SERVICES GROUP, INC.,
    a Delaware Corporation
    Registrant
     
    /S/  JOSEPH C. HETE
    Joseph C. Hete
    Chief Executive Officer (Principal Executive Officer)
Date:November 9, 2017August 8, 2018   
     
    /S/  QUINT O. TURNER
    Quint O. Turner
    Chief Financial Officer (Principal Financial Officer
Date:November 9, 2017August 8, 2018  and Principal Accounting Officer)


4440