AD 2016-11-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Blocked drain lines at the engine forward strut causing flammable fluid to accumulate in a flammable leakage zone.
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Required Actions
Clean certain forward strut drain lines; install new forward strut drain lines and insulation blankets; perform a leak check of the forward strut drain lines; repair any leaks found; revise the maintenance or inspection program to incorporate a specific airworthiness limitation.
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Compliance Time
Before further flight
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Affected Aircraft
The Boeing Company Model 777-200 and -300 series airplanes equipped with Pratt and Whitney engines, as identified in Boeing Special Attention Service Bulletin 777-71-0055, Revision 1, dated April 15, 2015.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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