AD 89-16-08

89-16-08 GENERAL ELECTRIC COMPANY: Amendment 39-6259.

Applicability: General Electric Company (GE) CF6-80A/A1/A2/A3 turbofan engines.

Compliance: Required as indicated, unless already accomplished.

To provide increased fire protection in the event of a fire escaping from the LPT recoup manifold which could lead to fuel leakage and possible engine fire, accomplish the following prior to August 31, 1989:

(a) Install on CF6-80A/A2 engines, two zirconia-coated fire shields, Part Numbers (P/N) 1306M85G01 and 1306M86G01, in accordance with GE CF6-80A series Alert Service Bulletin (ASB) A72-512, Revision 1, dated May 24, 1988.

(b) Install on CF6-80A1/A3 engines, fire shield, P/N 1306M84P02, in accordance with GE CF6-80A series ASB A72-510, Revision 2, dated November 14, 1988.

(c) Aircraft may be ferried in accordance with the provisions of FAR 21.197 and 21.199 to a base where the AD can be accomplished.

(d) Upon submission of substantiating data by anowner or operator through an FAA Airworthiness Inspector, an alternative method of compliance with the requirements of this AD or adjustments to the compliance time specified in this AD, may be approved by the Manager, Engine Certification Office, ANE-140, Engine and Propeller Directorate, Aircraft Certification Service, 12 New England Executive Park, Burlington, Massachusetts 01803.

The installation of the required fire shields shall be done in accordance with the procedures given in GE CF6-80A series ASB A72-512, Revision 1, dated May 24, 1988 (CF6-80A/80A2 engines) or ASB A72-510, Revision 2, dated November 14, 1988, (CF6-80A1/A3 engines). This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from General Electric Aircraft Engines, CF6 Distribution Clerk, Room 132, 111 Merchant Street, Cincinnati, Ohio 45246. Copies may be inspected at the Regional Rules Docket, Office of the Assistant Chief Counsel, Federal Aviation Administration, New England Region, 12 New England Executive Park, Room 311, Burlington, Massachusetts 01803, or at the office of the Federal Register, 1100 L Street, Room 8301, Washington, DC 20591.

This amendment (39-6259, AD 89-16-08) becomes effective on August 31, 1989.