EXHIBIT 4.16 HOWMET CORPORATION 475 Steamboat Road Greenwich, Connecticut 06836-1960 BLADE RECEIVABLES CORPORATION c/o Nevada Corporate Management, Inc. 3753 Howard Hughes Parkway, Suite 200 Las Vegas, Nevada 89109 March 6, 1998 MANUFACTURERS AND TRADERS TRUST COMPANY, as Trustee One M&T Plaza, 7th Floor Buffalo, New York 14203 THE FIRST NATIONAL BANK OF CHICAGO, as Agent One First National Plaza Chicago, Illinois 60670 FALCON ASSET SECURITIZATION CORPORATION One First National Plaza Chicago, Illinois 60670 Re: Blade Receivables Master Trust ------------------------------ Ladies and Gentlemen: Reference is hereby made to that certain Blade Receivables Master Trust Amended and Restated Pooling and Servicing Agreement dated as of April 18, 1996 (as heretofore further amended, supplemented or modified, the "Pooling ------- Agreement") among Blade Receivables Corporation, as Transferor ("BRC"), Howmet - --------- --- Corporation, as Servicer ("Howmet"), and Manufacturers and Traders Trust ------ Company, as Trustee (in such capacity, the "Trustee"). Capitalized terms used ------- herein and not otherwise defined herein have the meanings specified in Appendix A to the Pooling Agreement. The undersigned hereby request that each of (i) AlliedSignal Inc. ("Allied"), ------ (ii) each Person which is, as of the date hereof, a Subsidiary of Allied (each, a "Present Allied Subsidiary") and (iii) each Person which at any time after the ------------------------- date hereof becomes a Subsidiary of Allied (each, a "Future Allied Subsidiary") ------------------------ be deemed an Exempt Obligor for all purposes. Each of the undersigned hereby represents, warrants and covenants that (a) each of Allied and each Present Allied Subsidiary has been, and each Future Allied Subsidiary will be, instructed to make all payments in respect of its receivables to a location other than to any of the Bank Accounts, (b) Allied and each Present Allied Subsidiary can, and each Future Allied Subsidiary will, reasonably be expected to follow such instructions, and (c) none of the data included in the Daily Reports, Monthly Reports or other information supplied to the Trustee or Holders includes any information about Allied or any Present Allied Subsidiary or receivables owed by them, or in the case of any Future Allied Subsidiary, will include any information about such Future Allied Subsidiary or receivables owed by it. Please evidence your agreement and consent to the above request by signing the enclosed copy of this letter in the appropriate space provided below and returning an original executed copy of the same to each of the undersigned. BLADE RECEIVABLES CORPORATION By: /s/ Jeffrey A. Jankowski ------------------------ Name: Jeffrey A. Jankowski Title: Treasurer HOWMET CORPORATION By: /s/ Jeffrey A. Jankowski ------------------------ Name: Jeffrey A. Jankowski Title: Treasurer ACKNOWLEDGED AND AGREED to as of this 6th day of March, 1998. MANUFACTURERS AND TRADERS TRUST COMPANY, as Trustee By: /s/ Russel T. Whitler --------------------- Name: Russel T. Whitler Title: AVP THE FIRST NATIONAL BANK OF CHICAGO, as Agent By: /s/ Wanda Malone Harrison ------------------------- Name. Wanda Malone Harrison Title: Authorized Signer FALCON ASSET SECURITIZATION CORPORATION By: /s/ Wanda Malone Harrison ------------------------- Name. Wanda Malone Harrison Title: Authorized Signer