Source Text

As of the effective date of this AD, no person may install, on any airplane, a PSU oxygen panel assembly, P/N 4572105-XXX-0D0, 4572175-XXX-0D0, or 4572185-XXX-0D0, where the “XXX” in the affected PSU oxygen panel assembly part numbers is any combination of numerals, that was manufactured in May 2020 or before, and does not have a supplier service bulletin modification label marked with an 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.