AD 2008-08-26

final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 767 Airplanes

AD Number
2008-08-26
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2007-29063
FR Citation
73 FR 21235

Applicability

TypeManufacturerModelDetails
aircraft Boeing 767 Airworthiness Directives; Boeing Model 767 Airplanes

Unsafe Condition

Charred insulation blankets and burned wires around the forward gray water composite drain mast, potentially caused by a lightning strike on a composite drain mast, could lead to a fire and disruption of the electrical power system, resulting in the loss of essential functions for safe flight.

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 gray water drain masts, install a ground bracket and a bonding jumper between the ground bracket 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

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Affected Aircraft

All Boeing Model 767 airplanes.

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Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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Unsafe Condition: could result in a fire when the airplane is stationary, or taxiing at low speed; (2) reports of a bonding jumper assembly of certain drain tubes that did not meet bonding specifications and could r...

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