AD 98-09-23 Airworthiness Directives; Lockheed Model L-1011 Series Airplanes Equipped With Rolls Royce Model RB211-22B Engines

Models named: L-1011 series. Read the applicability below — it usually turns on serial or part numbers too.

Model L-1011 series airplanes equipped with Rolls Royce RB211-22B engines, certificated in any category. Note 1: If an operator has accomplished the requirements of paragraphs (a) and (b) of this AD on any affected airplane and, subsequently, installs a different Model RB211-22B engine on that airplane, the airplane and all installed engines are still subject to the requirements of this AD. Note 2: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (e) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.

Required as indicated, unless accomplished previously. To detect and correct bearing failure, which could lead to a fire in the gearbox, accomplish the following: (a) Within 8,000 flight hours or 30 months after May 8, 1987 (the effective date of AD 87-07-10, amendment 39-5597), whichever occurs first, accomplish the procedures specified in the Accomplishment Instructions of the service bulletins listed in paragraphs (a)(1) and (a)(2) of this AD. (1) Lockheed Service Bulletin 093-26-036, dated April 1, 1986, Installation of Fire Detector Segment; and (2) Lockheed Service Bulletin 093-71-067, Revision 1, dated April 1, 1986, Gearbox Breather Duct Modification. (b) Within 8,000 flight hours or 30 months after May 8, 1987, whichever occurs first, accomplish the procedures specified in the Accomplishment Instructions of the service bulletins listed in paragraphs (b)(1) and (b)(2) of this AD. (1) Rolls Royce Service Bulletin RB.211-72-4666, Revision 3, dated October 14, 1977, Introduction of Vent Air Tube in Gear Compartment; and (2) Rolls Royce Service Bulletin RB.211-72-8138, dated March 21, 1986, Installation of Additional No. 7 Fire Sensor. (c) For airplanes on which Rolls Royce Service Bulletin RB.211- 72-4666, Revision 3, dated October 14, 1977, and Rolls Royce Service Bulletin RB.211-72-3878, Revision 3, dated June 25, 1976, have been accomplished in accordance with paragraph C. of AD 87-07-10: Within 48 months or 16,000 flight hours after the effective date of this AD, whichever occurs first, accomplish the actions specified in paragraphs (a) and (b) of this AD. (d) Accomplishment of the requirements of paragraphs (a) and (b) of this AD; or accomplishment of the requirements of paragraph (c) of this AD; constitutes terminating action for the requirements of AD 85-09-03, amendment 39-5056. The AFM limitations required by AD 85-09-03 may be removed following accomplishment of the terminating action. (e)(1) 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, Atlanta Aircraft Certification Office (ACO), FAA, Small Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Atlanta ACO. (2) Alternative methods of compliance, approved previously in accordance with AD 87-07-10, amendment 39-5597, are approved as alternative methods of compliance with paragraphs (a) and (b) of this AD. Note 3: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Atlanta ACO. (f) Special flight permits may be issued in accordance with Secs. 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished. (g) The actions shall be done in accordance with the following service bulletins, which contain the specified effective pages: ---------------------------------------------------------------------------------------------------------------- Revision level shown Service bulletin referenced and date Page No. on page Date shown on page ---------------------------------------------------------------------------------------------------------------- Lockheed Service Bulletin 093-26- 1-7........................ Original............ April 1, 1986. 036, April 1, 1986. Lockheed Service Bulletin 093-71- 1-7, 9-11.................. 1................... April 1, 1986. 067, Revision 1, April 1, 1986. 8.......................... Original............ February 5, 1986. Rolls Royce Service Bulletin RB.211- 1-34....................... Original............ March 21, 1986. 72-8138, March 21, 1986. [[Page 23385]] Rolls Royce Service Bulletin RB.211- 1.......................... 3................... October 14, 1977. 72-4666, Revision 3, October 14, 1977. 2-6, 6A, 7-10.............. 2................... August 26, 1977. ---------------------------------------------------------------------------------------------------------------- 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 Lockheed Aeronautical Systems Support Company (LASSC), Field Support Department, Dept. 693, Zone 0755, 2251 Lake Park Drive, Smyrna, Georgia 30080. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA, Small Airplane Directorate, Atlanta Aircraft Certification Office, One Crown Center, 1895 Phoenix Boulevard, Suite 450, Atlanta, Georgia 30349; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (h) This amendment becomes effective on June 3, 1998. Issued in Renton, Washington, on April 21, 1998. Gary L. Killion, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 98-11088 Filed 4-28-98; 8:45 am] BILLING CODE 4910-13-U