Airworthiness Directive · Amendment 39-22779 · Nacelles/pylons
The Boeing Company Airplanes
This AD applies to all The Boeing Company Model 787-8, 787-9, and 787-10 airplanes, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This AD was prompted by a report of heat damage on multiple engine inlets around the engine anti-ice (EAI) duct within the inlet aft compartment. This AD requires doing a records check and updating the operator's existing minimum equipment list (MEL), inspecting the left and right engine inlet cowl assembly for signs of heat damage around the EAI duct, installing or replacing the EAI duct seals, repairing any damage, and replacing the engine inlet if necessary. This AD also prohibits the installation of engine inlets under certain conditions. 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 Alert Requirements Bulletin B787-81205-SB540023-00 RB or B787-81205-SB540024-00 RB, both Issue 001 and both dated September 22, 2023, as applicable, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin B787-81205-SB540023-00 RB or B787-81205-SB540024-00 RB, both Issue 001 and both dated September 22, 2023, as applicable.
Note 1 to paragraph (g): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin B787-81205-SB540023-00, dated September 22, 2023, which is referred to in Boeing Alert Requirements Bulletin B787-81205-SB540023-00 RB, Issue 001, dated September 22, 2023.
Note 2 to paragraph (g): Guidance for accomplishing the actions required by this AD can also be found in Boeing Alert Service Bulletin B787-81205-SB540024-00, dated September 22, 2023, which is referred to in Boeing Alert Requirements Bulletin B787-81205-SB540024-00 RB, Issue 001, dated September 22, 2023.
(1) Where the “Boeing Recommended Compliance Time” column in the tables under the “Compliance” paragraph of Boeing Alert Requirements Bulletin B787-81205-SB540023-00 RB, Issue 001, dated September 22, 2023, use the phrase “the Issue 001 date of Requirements Bulletin B787-81205-SB540023 RB,” this AD requires using the effective date of this AD.
(2) Where the “Boeing Recommended Compliance Time” columns in the tables under the “Compliance” paragraph of Boeing Alert Requirements Bulletin B787-81205-SB540024-00 RB, Issue 001, dated September 22, 2023, use the phrase “the Issue 001 date of Requirements Bulletin B787-81205-SB540024 RB,” this AD requires using the effective date of this AD.
(3) Where Boeing Alert Requirements Bulletin B787-81205-SB540023-00 RB, Issue 001, dated September 22, 2023, and Boeing Alert Requirements Bulletin B787-81205-SB540024-00 RB, Issue 001, dated September 22, 2023, specify contacting Boeing for repair instructions, this AD requires doing the repair before further flight, using a method approved in accordance with the procedures specified in paragraph (j) 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.
