Airworthiness directives › 2017-10-16
AD 2017-10-16 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 The Boeing Company Model 787-8 and 787-9 airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin B787-81205-SB570029-00, Issue 001, dated February 23, 2016.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 60 months after the effective date of this AD: Do a general visual inspection for missing sealant in the seam on the outside and inside of the engine struts, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin B787-81205-SB570029-00, Issue 001, dated February 23, 2016. Do all applicable corrective actions before further flight, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin B787-81205-SB570029-00, Issue 001, dated February 23, 2016.
Unsafe condition
This AD was prompted by a report indicating that a portion of the sealant above the engine pylon between the wing skin and the vapor barrier might have been omitted. We are issuing this AD to detect and correct missing sealant above the engine pylon between the wing skin and the vapor barrier, which can create an unintended leak path for fuel, potentially draining onto the aft fairing heat shield and onto hot engine parts or brakes, which could lead to a major ground fire.
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