AD 2008-04-12

final rule
Data completeness: 80%

Airworthiness Directives; Boeing Model 767-200, -300, -300F, and -400ER Series Airplanes

AD Number
2008-04-12
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2007-0203
FR Citation
73 FR 10645

Applicability

TypeManufacturerModelDetails
aircraft Boeing 767-200 Airworthiness Directives; Boeing Model 767-200, -300, -300F, and -400ER Series Airplanes

Unsafe Condition

Loss of all direct current (DC) power generation during flight due to inadequate electrical ground path between the ground bracket of the transformer rectifier units (TRUs)/main battery charger (MBC) and the structure.

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

Required Actions

Install a new ground stud bracket using faying surface bonding. Measure the resistance from the bracket to the structure and the ground lugs to the bracket using a bonding meter.

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

Boeing Model 767-200, -300, -300F, and -400ER series airplanes, as specified in the AD.

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

Source: Official FAA Source ↗

Retrieved: Apr 4, 2026

Rights: U.S. Government Public Domain

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View Official Source ↗ Find More ADs for Boeing 767-200

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