Airworthiness Directive · Amendment 39-23129 · Oxygen
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 indicating that the oxygen supply tubing can become kinked when certain passenger service unit (PSU) oxygen panel assemblies are installed in the forward-most position of a center stow bin. This AD requires a one-time inspection of the affected PSU oxygen panel assemblies and applicable on-condition actions. This AD also prohibits the installation of affected parts. The FAA is issuing this AD to address the unsafe condition on these products.
For airplanes identified in Boeing Alert Requirements Bulletins B787-81205-SB250277-00 RB, Issue 001, dated February 15, 2023, and B787-81205-SB250278-00 RB, Issue 001, dated February 15, 2023: Except as specified by paragraph (h) of this AD, at the applicable times specified in the “Compliance” paragraph of Boeing Alert Requirements Bulletins B787-81205-SB250277-00 RB, Issue 001, dated February 15, 2023, or B787-81205-SB250278-00 RB, Issue 001, dated February 15, 2023, as applicable, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin B787-81205-SB250277-00 RB, Issue 001, dated February 15, 2023, or B787-81205-SB250278-00 RB, Issue 001, dated February 15, 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-SB250277-00, Issue 001, dated February 15, 2023, which is referred to in Boeing Alert Requirements Bulletin B787-81205-SB250277-00 RB, Issue 001, dated February 15, 2023.
Note 2 to paragraph (g): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin B787-81205-SB250278-00, Issue 001, dated February 15, 2023, which is referred to in Boeing Alert Requirements Bulletin B787-81205-SB250278-00 RB, Issue 001, dated February 15, 2023.
(1) Where the Compliance Time columns of the tables in the “Compliance” paragraph of Boeing Alert Requirements Bulletin B787-81205-SB250277-00 RB, Issue 001, dated February 15, 2023, refer to a compliance time of within 24 months after the Issue 001 date of the Requirements Bulletin or within 24 months after date of issuance of original standard certificate of airworthiness or original export certificate of airworthiness, whichever occurs later, this AD requires using within 36 months after the effective date of this AD or within 36 months after date of issuance of original standard certificate of airworthiness or original export certificate of airworthiness, whichever occurs later.
(2) Where the Compliance Time columns of the tables in the “Compliance” paragraph of Boeing Alert Requirements Bulletin B787-81205-SB250278-00 RB, Issue 001, dated February 15, 2023, refer to a compliance time of within 24 months after the Issue 001 date of the Requirements Bulletin or within 24 months after date of issuance of original standard certificate of airworthiness or original export certificate of airworthiness, whichever occurs later, this AD requires using within 36 months after the effective date of this AD or within 36 months after date of issuance of original standard certificate of airworthiness or original export certificate of airworthiness, whichever occurs later.
(3) Where Boeing Alert Requirements Bulletin B787-81205-SB250277-00 RB, Issue 001, dated February 15, 2023, and Boeing Alert Requirements Bulletin B787-81205-SB250278-00 RB, Issue 001, dated February 15, 2023, specify that the corrective actions for Conditions 2, 2.2, 2.2.2, and 3 must be done before further flight, this AD requires that the corrective actions for those conditions be done within 36 months after the effective date of this AD, or within 36 months after the date of issuance of original standard certificate of airworthiness or original export certificate of airworthiness, whichever occurs later.
Replacement of a PSU oxygen panel assembly, part number (P/N) 4572105-XXX-0D0, 4572175-XXX-0D0, or 4572185-XXX-0D0 that was manufactured in May 2020 or before, with an applicable PSU oxygen panel assembly, P/N 4572105-XXX-0D0, 4572175-XXX-0D0, or 4572185-XXX-0D0 that has the applicable identification label(s) specified in paragraph (i)(1) or (2) of this AD, is acceptable for compliance with the requirements of paragraph (g) of this AD, where “XXX” in the PSU oxygen panel assembly part numbers is any combination of numerals.
(1) An identification label with a manufacture date of June 2020 or after.
(2) An identification label with a manufacture date of May 2020 or before and a supplier service bulletin modification label marked with the applicable supplier service bulletin number identified in Boeing Alert Requirements Bulletin B787-81205-SB250277-00 RB, Issue 001, dated February 15, 2023, or Boeing Alert Requirements Bulletin B787-81205-SB250278-00 RB, Issue 001, dated February 15, 2023, and the supplier service bulletin date.
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.
