AD 2008-09-11

final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 777-200, -300, and -300ER Series Airplanes

AD Number
2008-09-11
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2007-28664
FR Citation
73 FR 24153

Applicability

TypeManufacturerModelDetails
aircraft Boeing 777-200 Airworthiness Directives; Boeing Model 777-200, -300, and -300ER Series Airplanes

Unsafe Condition

Charred insulation blankets and burned wires around the forward gray water composite drain mast, potentially leading to a fire near a composite drain mast and disruption of the electrical power system due to a lightning strike.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Inspect the material of the forward and aft gray water drain masts. For airplanes with composite drain masts, install a bonding jumper between a ground and the clamp on the tube of the forward and aft gray water composite drain masts.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Before further flight

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

All Boeing Model 777-200, -300, and -300ER series airplanes.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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