AD 93-15-09

93-15-09 ROLLS-ROYCE, PLC: Amendment 39-8655. Docket 93-ANE-30. Applicability: Rolls-Royce, plc (R-R) Dart series turboprop engines: Mk. 506, 510, 511, 514, 515, 520, 525, 526, 527, 528, 529, 530, 532, 533, 534, 535, 536, 542, 543, 550, and 552. These engines are installed on but not limited to Convair 600/640, Fokker F27/F227, Grumman Gulfstream 1, Hawker Siddeley 748, and Vickers Viscount aircraft. Compliance: Required as indicated, unless accomplished previously. To prevent failure of the servo fuel pipe, which could result in a loss of engine power, inflight engine shutdown, or engine fire, accomplish the following: (a) Within 30 days after the effective date of this AD, visually inspect the servo fuel pipe, Part Number (P/N) RK18596A, RK18668A, or RU21444A, using the criteria contained in the Appendix of Rolls-Royce Aero Engine ASB No. Da73-A86, dated March 5, 1993. (b) Replace any servo fuel pipe which does not meet the acceptance criteria contained in the Appendix of Rolls-Royce Aero Engine Alert Service Bulletin (ASB) No. Da73-A86, dated March 5, 1993, with a serviceable part, prior to further flight. (c) For engines not in service on the effective date of this AD, accomplish the actions of paragraphs (a) and (b) of this AD prior to entry into service. (d) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Engine Certification Office. The request should be forwarded through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Engine Certification Office. NOTE: Information concerning the existence of approved alternative methods of compliance with this airworthiness directive, if any, may be obtained from the Engine Certification Office. (e) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished. (f) The inspection shall be done in accordance with the following Rolls-Royce Aero Engine Alert Service Bulletin:

Document No. Pages Date Da73-A86 1-3 March 5, 1993 Appendix 1 March 5, 1993 Total pages: 4.

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 Rolls-Royce, plc, East Kilbride, Glasgow G74 4PY, Scotland. Copies may be inspected at the FAA, New England Region, Office of the Assistant Chief Counsel, 12 New England Executive Park, Burlington, MA; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (g) This amendment becomes effective on September 7, 1993.