Airworthiness Directive · Amendment 39-14572 · Boeing Model 757-200 and -200PF Series Airplanes Equipped With Pratt & Whitney Engines
Boeing Model 757-200 and -200PF Series Airplanes Equipped With Pratt & Whitney Engines
This AD applies to Boeing Model 757-200 and -200PF series airplanes, certificated in any category, equipped with Pratt & Whitney engines, as identified in Boeing Alert Service Bulletin (ASB) 757-71A0085, dated March 2, 2006.
The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 757-200 and -200PF series airplanes equipped with Pratt & Whitney engines. This AD requires repetitive detailed inspections to detect and correct any gap between the strut fitting and the forward engine mount assembly and applicable related investigative actions, corrective actions, and other specified actions. This AD results from a report indicating that gaps had been found between the strut fitting and the forward engine mount assembly. We are issuing this AD to detect and correct any gaps between the strut fitting and the forward engine mount assembly of both engines, which could result in separation of the engine from the wing and subsequent loss of control of the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 90 days after the effective date of this AD or within 3,000 flight cycles since the most recent installation of each engine, whichever occurs later: For each engine, perform a detailed inspection to detect any gap between the strut fitting and the forward engine mount assembly of the engine, and before further flight, do all applicable related investigative actions, corrective actions, and other specified actions; in accordance with Part 1 of the Accomplishment Instructions of Boeing ASB 757-71A0085, dated March 2, 2006.
Note 1: In the Accomplishment Instructions of the ASB, the manufacturer provides instructions to repair or replace parts before “subsequent” flight if damage is found on parts. However, the manufacturer also specifies to write to the manufacturer if necessary for repair information. This AD requires that any deviation from the instructions provided in the ASB must be approved as an alternative method of compliance under paragraph (h) of this AD.
Within 3,000 flight cycles after accomplishing the requirements of paragraph (f) of this AD: Perform a detailed inspection to detect any gap between the strut fitting and the forward mount assembly of both engines, and before further flight, do all applicable related investigative actions, corrective actions, and other specified actions; in accordance with Part 2 of the Accomplishment Instructions of Boeing ASB 757-71A0085, dated March 2, 2006. Thereafter, repeat the actions specified in Part 2 of the Accomplishment Instructions of the ASB at intervals not to exceed 3,000 flight cycles.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
