AD 97-23-02 Airworthiness Directives; Boeing Model 727-100 Series Airplanes Modified in Accordance With Supplemental Type Certificate (STC) SA8472SW

Models named: 727-100 series. Read the applicability below — it usually turns on serial or part numbers too.

Model 727-100 series airplanes modified in accordance with Supplemental Type Certificate (STC) SA8472SW, which includes installation of Rolls-Royce Tay 651-54 engines; certificated in any category. Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been otherwise 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 (b) 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 prevent uncontained failure of engine fan blades due to high cycle fatigue cracking, which could result in loss of thrust from the affected engine and secondary damage to the airplane and/or fire, accomplish the following: (a) Within 72 hours after the effective date of this AD, revise the Limitations Section of the FAA-approved Airplane Flight Manual (AFM) by inserting a copy of Dee Howard Airplane AFM Supplement CR102-F-066, Change 19, dated October 2, 1997, in the AFM. (b) 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, Airplane Certification Office, ASW- 150, FAA, Rotorcraft Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Airplane Certification Office, ASW-150. Note 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Airplane Certification Office, ASW-150. (c) 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. (d) The AFM revision shall be done in accordance with Dee Howard Airplane Flight Manual Supplement CR102-F-066, Change 19, dated October 2, 1997 (for Boeing 727QF airplanes), which contains the following list of effective pages. ------------------------------------------------------------------------ Revision level Page number shown on page Date shown on page ------------------------------------------------------------------------ Title Page...................... 19................ November 25, 1992. 1-1, 1-3, 3-4, 3-15, 4-61....... Not Shown......... October 2, 1997. ------------------------------------------------------------------------ The 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 the Dee Howard Company, P.O. Box 469001, San Antonio, Texas 78246. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA, Rotorcraft Directorate, 2601 Meacham Boulevard, Fort Worth, Texas; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (e) This amendment becomes effective on November 19, 1997. Issued in Renton, Washington, on October 29, 1997. Darrell M. Pederson, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 97-29114 Filed 11-3-97; 8:45 am] BILLING CODE 4910-13-U