AD 2017-10-16
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
A portion of the sealant above the engine pylon between the wing skin and the vapor barrier might have been omitted, creating an unintended leak path for fuel, potentially draining onto the aft fairing heat shield above the engine and onto hot engine parts or brakes, which could lead to a major ground fire.
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Required Actions
Inspect for missing sealant in the seam on the outside and inside of the engine struts. Install missing sealant if necessary. Restore the finish disturbed by the required work.
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Compliance Time
Before further flight
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Affected Aircraft
The Boeing Company Model 787-8 and 787-9 airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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