86-08-05 R1 CFM INTERNATIONAL: Amendment 39-5281 as amended by Amendment 39-5339. Applies to CFM International (CFMI) CFM56-3/-3B series turbofan engines.
Compliance is required within the next 80 hours time in service (TIS) after the effective date of this AD , unless already accomplished.
To prevent engine shutdown from radial drive shaft disengagement, accomplish the following:
Inspect oil distributor Part Number (P/N) 335-305-800-0 and spirolock P/N 649-363-137-0 in accordance with CFMI CFM56-3/-3B Service Bulletin (SB) 72-205 Revision 3, dated April 16, 1986, or FAA approved equivalent. However, the SB torque check increases from 50 inch-lbs. to 100 inch-lbs. and a minimum of 2 hours cool down time is required prior to inspection for the purpose of this AD.
(a) If the oil distributor is loose and spirolock is serviceable, either re-inspect the spirolock for serviceability at intervals not to exceed 125 hours TIS since last inspection or replace the oil distributorin accordance with SB 72-205, Revision 3, and reinspect within 375 hours.
(b) If the oil distributor is loose and spirolock is not serviceable, replace the spirolock prior to further flight and either reinspect the spirolock for serviceability within 250 hours TIS or replace the oil distributor and reinspect within 375 hours.
(c) If the oil distributor is tight, reinspect within 375 hours.
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.
Upon request, an equivalent means of compliance with the requirements of this AD may be approved by the Manager, Engine Certification Office, Aircraft Certification Division, Federal Aviation Administration, New England Region, 12 New England Executive Park, Burlington, Massachusetts 01803.
Upon submission of substantiating data by an owner or operator through an FAA maintenance inspector, the Manager, Engine Certification Office, New England Region, may adjustthe compliance time specified in this AD.
CFMI CFM56-3/-3B SB 72-205, Revision 3, dated April 16, 1986, identified and described in this document, is incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received this document from the manufacturer may obtain copies upon request to CFM International, 1 Neumann Way, Cincinnati, Ohio 45215. This document also may be examined at the Office of the Regional Counsel, Federal Aviation Administration, New England Region, 12 New England Executive Park, Burlington, Massachusetts 01803, Rules Docket Number 86-ANE-13, Room Number 311, between the hours of 8:00 a.m. and 4:30 p.m., Monday through Friday, except Federal holidays.
This amendment amends Amendment 39-5281 (44 FR 11034), AD 86-08-05, which became effective April 15, 1986.
This Amendment 39-5339 becomes effective on July 7, 1986.