AD 82-09-02 R1

82-09-02 R1 ROLLS-ROYCE, LTD.: Amendment 39-4371 as amended by Amendment 39-4642. Applies to Rolls-Royce DART Mk. 506, 510, 511, 514, 525 through 532, 535, and variants series turboprop engines.

Compliance is required as indicated, unless already accomplished.

1. Compliance for all affected DART engines except the Mk. 530 is based on an effective date of April 30, 1982.

2. Compliance for the DART Mk. 530 engines is based on an effective date of May 12, 1983.

To prevent possible failure of the engine fuel manifold assembly connection flexible hose which could result in release of fuel within the nacelle and consequent loss of engine power and risk of fire, accomplish the following:

Remove from service engine fuel manifold assembly No. 7 to No. 6 bulkhead connection hose, P/N RK38451A, Mod 1587, with identification tag bearing a manufacture/3,000 psi test date of "8.9.76."

Upon request of the operator, an FAA maintenance inspector, subject to prior approval of the Manager, Aircraft Certification Division, FAA, New England Region, may adjust the compliance date specified in the AD to permit compliance at an established inspection period of the operator if the request contains substantiating data to justify the issuance for that operator.

NOTE: Rolls-Royce, Ltd., DART Engine Alert Service Bulletin No. Da73-A75, dated February 16, 1982, refers to this subject.

Amendment 39-4371 became effective April 30, 1982.

This Amendment 39-4642 becomes effective May 12, 1983.