EXHIBIT 4.15 [CONFORMED COPY] FIRST WAIVER FIRST WAIVER (the "Waiver"), dated as of December 15, 1994, among COLTEC INDUSTRIES INC (the "Company") and the financial institutions party to the Credit Agreement referred to below (the "Banks"). All capitalized terms used herein and not otherwise defined shall have the respective meanings provided such terms in the Credit Agreement. W I T N E S S E T H : WHEREAS, the Company, the Banks, the Co-Agents and Bankers Trust Company, as Administrative Agent, are parties to a Credit Agreement, dated as of March 24, 1992 and amended and restated as of January 11, 1994, as amended, modified or supplemented through the date hereof (as so amended, modified or supplemented, the "Credit Agreement"); WHEREAS, Menasco Aviation Services Ltd. ("MAS"), a corporation incorporated under the laws of Ontario and a Wholly-Owned Subsidiary of Menasco Aerospace Ltd. ("Menasco"), intends to establish a new facility which will provide landing gear overhaul and repair services to airlines in the City of Burlington, Ontario (the "Project"); WHEREAS, in order to assist MAS in the financing of the Project, the Province of Ontario has agreed to provide a loan to MAS in an aggregate amount equal to CDN$3,000,000 pursuant to an agreement between MAS and the Province of Ontario (the "MAS Loan Agreement"); WHEREAS, the Company and Menasco have agreed to guarantee the payment when due of all obligations and liabilities of MAS under or with respect to the MAS Loan Agreement; WHEREAS, pursuant to Article 10.1 of the MAS Loan Agreement, MAS has agreed to certain restrictions on its ability to (i) pay dividends and make other distributions on its capital stock, (ii) make loans or advances to the Company or any Subsidiary of the Company and (iii) transfer any of its property or assets to the Company; WHEREAS, the parties hereto wish to waive certain provisions of the Credit Agreement as herein provided; NOW, THEREFORE, it is agreed: 1. Notwithstanding anything to the contrary contained in Section 9.04(l) of the Credit Agreement or in the definition of Canadian Government Financing, the Required Banks hereby waive compliance by MAS with the requirement that Canadian Government Financing shall not be guaranteed by the Company or any of its Subsidiaries, solely to the extent necessary to permit the Indebtedness incurred by MAS under the MAS Loan Agreement to satisfy the provisions of Section 9.04(l) of the Credit Agreement; 2. Notwithstanding anything to the contrary contained in Section 9.04 of the Credit Agreement, the Required Banks hereby agree that the Company and Menasco shall be permitted to guarantee the Indebtedness incurred by MAS pursuant to the MAS Loan Agreement, so long as such Indebtedness does not exceed CDN$3,000,000 in the aggregate at any time. 3. Notwithstanding anything to the contrary contained in Section 9.11 of the Credit Agreement, the Required Banks hereby waive compliance by MAS with the restrictions contained in Section 9.11 of the Credit Agreement, solely to the extent necessary to permit MAS to comply with the provisions of Article 10.1 of the MAS Loan Agreement. 4. In order to induce the Banks to enter into this Waiver, the Company hereby (i) makes each of the representations, warranties and agreements contained in Section 7 of the Credit Agreement and (ii) represents and warrants that there exists no Default or Event of Default, in each case on the Waiver Effective Date (as defined herein) both before and after giving effect to this Waiver. -2- 5. This Waiver is limited as specified and shall not constitute a modification, acceptance or waiver of any other provision of the Credit Agreement or any other Credit Document. 6. This Waiver may be executed in any number of counterparts and by the different parties hereto on separate counterparts, each of which counterparts when executed and delivered shall be an original, but all of which shall together constitute one and the same instrument. A complete set of counterparts shall be lodged with the Company and the Administrative Agent. 7. THIS WAIVER AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAW OF THE STATE OF NEW YORK. 8. This Waiver shall become effective on the date (the "Waiver Effective Date") when the Company and the Required Banks shall have signed a copy hereof (whether the same or different copies) and shall have delivered (including by way of facsimile) the same to the Administrative Agent at the Notice Office. 9. From and after the Waiver Effective Date, all references in the Credit Agreement and the other Credit Documents to the Credit Agreement shall be deemed to be references to such Credit Agreement as modified hereby. -3- IN WITNESSES WHEREOF, each of the parties hereto has caused a counterpart of this Waiver to be duly executed and delivered as of the date first above written. COLTEC INDUSTRIES INC By /s/ Paul Schoen ---------------------------- Title: Executive Vice President-Finance and Treasurer BANKERS TRUST COMPANY, Individually, and as Administrative Agent By /s/ Mary Kay Coyle ---------------------------- Title: Vice President THE BANK OF MONTREAL, Individually and as Co-Agent By /s/ Glen A. Pole ---------------------------- Title: Director THE BANK OF NOVA SCOTIA, Individually, and as Co-Agent By /s/ Stephen E. Lockhart ---------------------------- Title: Senior Manager -4- CREDIT LYONNAIS NEW YORK BRANCH, Individually and as Co-Agent By /s/ Mark Campellone ---------------------------- Title: Vice President THE INDUSTRIAL BANK OF JAPAN, LIMITED, New York Branch, Individually, and as Co-Agent By /s/ Junri Oda ---------------------------- Title: Senior Vice President and Senior Manager CIBC, INC. By /s/ Timothy E. Doyle ---------------------------- Title: Vice President ABN AMRO BANK N.V. By /s/ Nancy F. Hawkins ---------------------------- Title: Group Vice President By /s/ David A. Mandell ---------------------------- Title: Vice President -5- COMERICA BANK By /s/ Martin G. Ellis ---------------------------- Title: Assistant Vice President THE SUMITOMO BANK, LIMITED By /s/ Yoshinori Kawamura ---------------------------- Title: Joint General Manager BANK OF AMERICA ILLINOIS By /s/ George Poon ---------------------------- Title: Vice President SOCIETY NATIONAL BANK By /s/ Peter D. Moore ---------------------------- Title: Vice President CHEMICAL BANK By ---------------------------- Title: -6- BARCLAYS BANK PLC, NEW YORK BRANCH By ---------------------------- Title: ROYAL BANK OF SCOTLAND By /s/ David Dougan ---------------------------- Title: Vice President THE BANK OF NEW YORK By /s/ William Kerr ---------------------------- Title: Vice President THE BANK OF TOKYO TRUST COMPANY By /s/ Neal Hoffson ---------------------------- Title: Vice President -7- BANQUE FRANCAISE DU COMMERCE EXTERIEUR By /s/ David Kopp ---------------------------- Title: Vice President By /s/ Peter Harris ---------------------------- Title: Vice President BANQUE PARIBAS By ---------------------------- Title: By ---------------------------- Title: THE CHASE MANHATTAN BANK, N.A. By ---------------------------- Title: COMMONWEALTH BANK OF AUSTRALIA By ---------------------------- Title: -8- EATON VANCE PRIME RATE RESERVES By ---------------------------- Title: THE FUJI BANK, LIMITED, New York Branch By ---------------------------- Title: GIROCREDIT BANK, New York Branch By____________________________ Title: -9- THE LONG-TERM CREDIT BANK OF JAPAN, LIMITED, NEW YORK BRANCH By /s/ Rene O. LeBlanc ---------------------------- Title: Deputy General Manager THE MITSUBISHI TRUST AND BANKING CORPORATION By ---------------------------- Title: THE NIPPON CREDIT BANK, LTD., New York Branch By /s/ Evan Klein ---------------------------- Title: Assistant Vice President -10- UNION BANK OF FINLAND LIMITED, Grand Cayman Branch By /s/ Pentti Mansukoski ---------------------------- Title: Senior Vice President By /s/ Eric I. Mann ---------------------------- Title: Vice President VAN KAMPEN MERRITT PRIME RATE INCOME TRUST By ---------------------------- Title: ARAB BANKING CORP. By /s/ Louise Bilbro ---------------------------- Title: Vice President -11- BAHRAIN MIDDLE EAST BANK E.C. New York Agency By ---------------------------- Title: By ---------------------------- Title: BANK OF IRELAND By /s/ Randolph Ross ---------------------------- Title: Vice President BANK OF SCOTLAND By /s/ Catherine M. Oniffey ---------------------------- Title: Vice President MERRILL LYNCH PRIME FUND INC. By ---------------------------- Title: -12- MERRILL LYNCH PRIME RATE PORTFOLIO BY MERRILL LYNCH INVESTMENT MANAGEMENT, INC., as investment advisor By ---------------------------- Title: RYOSHIN LEASING (USA) INC. By ---------------------------- Title: STICHTING RESTRUCTURED OBLIGATIONS BACKED BY SENIOR ASSETS 2 (ROSA2) (Chancellor) By ---------------------------- Title: TOKYO CITY FINANCE (ASIA) LIMITED By ---------------------------- Title: -13-- TOKYO TRUST AND BANKING COMPANY, LTD. New York Branch By ---------------------------- Title: TRAVELERS INSURANCE COMPANY By ---------------------------- Title: -14-