Airworthiness directives › 2018-07-19
AD 2018-07-19 Airworthiness Directives; The Boeing Company Airplanes
Models named: 787-8, 787-9. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to all The Boeing Company Model 787-8 and 787-9 airplanes, certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
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.
Unsafe condition
This AD was prompted by a report that the parking brake and alternate pitch trim module (PBM) may unintentionally disengage. We are issuing this AD to prevent an unintended parking brake release, which could result in damage to the airplane and be a hazard to persons or property on the ground.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1