SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K/A Amendment No.1 (Mark One) / x / ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 1999 or / / TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File No.: 333-48943 First Union National Bank Commercial Mortgage Trust Commercial Mortgage Pass-Through Certificates Series 1999-C4 (Exact name of registrant as specified in its charter) New York 52-2211953 52-2211955 52-2211954 (State or other jurisdiction (I.R.S. Employer of incorporation or Identification No.) organization) c/o Wells Fargo Bank Minnesota, N.A. 11000 Broken Land Parkway Columbia, Maryland 21044 (Address of principal executive offices) (ZIP Code) Registrant's telephone number, including area code: (410) 884-2000 Securities to be registered pursuant to Section 12(b) of the Act: NONE Securities to be registered pursuant to Section 12(g) of the Act: NONE 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 ___ This Amendment No. 1 on Form 10-K/A amends Item 14 of the original Annual Report on Form 10-K (the "Original Form 10-K") filed on March 24, 2000, on behalf of First Union National Bank Commercial Mortgage Trust, Commercial Mortgage Pass- Through Certificates Series 1999-C4 established pursuant to the Pooling and Servicing Agreement among First Union Commercial Mortgage Securities, Inc. as Depositor, First Union National Bank as Master Servicer, Orix Real Estate Capital Markets, LLC as Special Servicer, and Wells Fargo Bank Minnesota, N.A. as Trustee, pursuant to which the First Union National Bank Commercial Mortgage Trust Commercial Mortgage Pass-Through Certificates Series 1999-C4 registered under the Securities Act of 1933 the ("Certificates") were issued. Item 14 of the original Form 10K is amended in its entirety to read as follows: Item 14. Exhibits, Financial Statement Schedules, and Reports on Form 8-K. (a) Exhibits (99.1) Annual Independent Accountants' Servicing Reports concerning servicing activities for the year ended December 31, 1999. a) First Union National Bank, as Master Servicer <F1> b) ORIX Real Estate Capital Markets, LLC., as Special Servicer <F1> (99.2) Report of Management as to Compliance with Minimum Servicing Standards for the year ended December 31, 1999. a) First Union National Bank, as Master Servicer <F1> b) ORIX Real Estate Capital Markets, LLC., as Special Servicer <F1> (99.3) Annual Statements of Compliance under the Pooling and Servicing Agreements for the year ended December 31, 1999. a) First Union National Bank, as Master Servicer <F3> b) ORIX Real Estate Capital Markets, LLC., as Special Servicer <F1> (99.4) Aggregate Statement of Principal and Interest Distributions to Certificate Holders. <F2> (b) On December 30, 1999, a report on Form 8-K was filed in order to provide the Pooling and Servicing Agreement for the Certificates. No other reports on Form 8-K have been filed during the last quarter of the period covered by this report. (c) Not applicable. (d) Omitted. <F1> Filed herewith. <F2> Previously filed. <F3> Such document is not filed herewith since such document was not received by the reporting person. SIGNATURE Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized: First Union National Bank Commercial Mortgage Trust Commercial Mortgage Pass-Through Certificates Series 1999-C4 Signed: Wells Fargo Bank Minnesota, N.A., as Trustee By: Sherri Sharps, Vice president By: /s/ Sherri Sharps, Vice president Dated: April 6, 2001 Exhibit Index Exhibit No. 99.1 Annual Independent Accountants' Servicing Reports concerning servicing activities for the year ended December 31, 1999. a) First Union National Bank, as Master Servicer <F1> b) ORIX Real Estate Capital Markets, LLC., as Special Servicer <F1> 99.2 Report of Management as to Compliance with Minimum Servicing Standards for the year ended December 31, 1999. a) First Union National Bank, as Master Servicer <F1> b) ORIX Real Estate Capital Markets, LLC., as Special Servicer <F1> 99.3 Annual Statements of Compliance under the Pooling and Servicing Agreements for the year ended December 31, 1999. a) First Union National Bank, as Master Servicer <F3> b) ORIX Real Estate Capital Markets, LLC., as Special Servicer <F1> 99.4 Aggregate Statement of Principal and Interest Distributions to Certificate Holders.<F2> <F1> Filed herewith. <F2> Previously filed. <F3> Such document is not filed herewith since such document was not received by the reporting person.