Airworthiness Directive · Amendment 39-23489 · Powerplant
The Boeing Company Airplanes
The FAA has filed this AD for publication in the Federal Register on October 19, 2026. This page shows the public-inspection copy and is replaced by the published text when it appears. Its effective date is set at publication.
This AD applies to The Boeing Company Model 787-8, 787-9, and 787-10 airplanes, certificated in any category, equipped with Rolls Royce Deutschland Ltd & Co KG Model Trent 1000-AE3, 1000-CE3, 1000-D3, 1000-G3, 1000-H3, 1000-J3, and 1000-K3 engines.
The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This AD was prompted by a report indicating that the protection system on the left fan cowl of the right engine does not sufficiently cover the components and systems from possible cross engine debris. This AD requires performing a maintenance records check or inspection of the right engine to determine the part number of the left fan cowl and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.
Except as specified by paragraph (h) of this AD: At the applicable times specified in the “Compliance” paragraph of Boeing Special Attention Requirements Bulletin B787-81205-SB540022-00 RB, Issue 001, dated February 19, 2026, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Special Attention Requirements Bulletin B787-81205-SB540022-00 RB, Issue 001, dated February 19, 2026.
Note 1 to paragraph (g): Guidance for accomplishing the actions required by this AD can be found in Boeing Special Attention Service Bulletin B787-81205-SB540022-00, Issue 001, dated February 19, 2026, which is referred to in Boeing Special Attention Requirements Bulletin B787-81205-SB540022-00 RB, Issue 001, dated February 19, 2026.
Where the “Effectivity” paragraph and the “Compliance” paragraph of Boeing Special Attention Requirements Bulletin B787-81205-SB540022-00 RB, Issue 001, dated February 19, 2026, refer to the Issue 001 date of Requirements Bulletin B787-81205-SB540022-00 RB, this AD requires using the effective date of this AD.
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.
