Airworthiness Directive · Amendment 39-19299 · Wings
Airbus Airplanes
This AD applies to Airbus Model A350-941 airplanes, certificated in any category, manufacturer serial numbers (MSN) 0006 to 0040 inclusive, except MSN 0025, 0032, 0033, 0036, 0038, and 0039.
We are adopting a new airworthiness directive (AD) for certain Airbus Model A350-941 airplanes. This AD requires a detailed inspection of the four retaining pins in the main landing gear support structure (MLGSS) trunnion block, left- and right-hand sides, and related investigative and corrective actions if necessary. This AD was prompted by a determination that short retaining pins may have been installed at the incorrect location of the MLGSS forward pintle. We are issuing this AD to address the unsafe condition on these products.
Before exceeding 1,880 flight cycles since first flight of the airplane, accomplish a detailed inspection for nonconformance (incorrect retaining pins, i.e., those having a gap between the retaining pin and the forward surface of the trunnion block) of the four retaining pins installed in the MLGSS trunnion block, left- and right-hand sides and related investigative actions, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A350-57-P011, dated May 17, 2017.
(1) If, during any inspection required by paragraph (g) of this AD, any nonconforming retaining pin is found and that pin has damage (including cracks) or deformation: Before further flight, repair using a method approved by the Manager, International Section, Transport Standards Branch, FAA; or the European Aviation Safety Agency (EASA); or Airbus's EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature.
(2) If, during any inspection required by paragraph (g) of this AD, any nonconforming but undamaged and undeformed retaining pin is found: Before exceeding 1,880 flight cycles since first flight of the airplane, replace the nonconforming pin(s) with new conforming pins in accordance with the Accomplishment Instructions of Airbus Service Bulletin A350-57-P011, dated May 17, 2017.
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
