AD 2008-08-22

final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 737-600, -700, -700C, -800, and -900 Series Airplanes

AD Number
2008-08-22
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2007-29116
FR Citation
73 FR 21227

Applicability

TypeManufacturerModelDetails
aircraft Boeing 737-600 Airworthiness Directives; Boeing Model 737-600, -700, -700C, -800, and -900 Series 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 result in a fire and disruption of the electrical power system, leading to 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 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

Within 50 flight hours after the effective date of the AD.

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

Affected Aircraft

Boeing Model 737-600, -700, -700C, -800, and -900 series airplanes with composite gray water drain masts.

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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