Airworthiness Directive · Amendment 39-19250 · Landing gear
The Boeing Company Airplanes
This AD applies to all The Boeing Company Model 787-8 and 787-9 airplanes, certificated in any category.
We are adopting a new airworthiness directive (AD) for all The Boeing Company Model 787-8 and 787-9 airplanes. This AD was prompted by a report that the parking brake and alternate pitch trim module (PBM) may unintentionally disengage. This AD requires replacing the PBM and doing a PBM installation test. We are issuing this AD to address the unsafe condition on these products.
For airplanes on which the original airworthiness certificate or the original export certificate of airworthiness was issued on or before the effective date of this AD: Within 60 months after the effective date of this AD, inspect the PBM to determine the part number. A review of airplane maintenance or delivery records is acceptable in lieu of the inspection if the part number of the PBM can be conclusively determined from that review.
(1) If the PBM is Rockwell Collins part number (P/N) 4260-0037-5: No further action is required by this paragraph.
(2) If the PBM is Rockwell Collins P/N 4260-0037-3 or -4: Within 60 months after the effective date of this AD, install PBM P/N 4260-0037-5 and do the PBM installation test, in accordance with the Accomplishment Instructions of Boeing Service Bulletin B787-81205-SB320028-00, Issue 001, dated October 31, 2016. Where Boeing Service Bulletin B787-81205-SB320028-00, Issue 001, dated October 31, 2016, specifies accomplishing an action “in accordance with 787 AMM 32-44-01,” for this AD “refer to 787 AMM 32-44-01” for that action. If the installation test fails, before further flight, do all applicable corrective actions and repeat the test until the test is passed.
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
