Airworthiness directives › 2016-19-04
AD 2016-19-04 Airworthiness Directives; The Boeing Company Airplanes
Models named: 787-8. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to The Boeing Company Model 787-8 airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin B787-81205-SB250054-00, Issue 001, dated December 19, 2014.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 1,000 flight hours after the effective date of this AD, test the operation of the captain and first officer seat assemblies and do all applicable corrective actions, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin B787-81205-SB250054-00, Issue 001, dated December 19, 2014. Do all applicable corrective actions before further flight. Repeat the operational test thereafter at intervals not to exceed 1,000 flight hours until the installation required by paragraph (h) of this AD is done.
Unsafe condition
This AD was prompted by a report of uncommanded movement by a captain's seat during a landing rollout due to a failure in the seat horizontal actuator. We are issuing this AD to prevent a seat actuator clutch failure, which could result in a loss of seat locking and uncommanded motion of the captain's or first officer's seat; uncommanded seat motion could result in reduced controllability of the airplane.
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