AD 2012-21-02

final rule
Data completeness: 70%

Airworthiness Directives; The Boeing Company Airplanes

AD Number
2012-21-02
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. FAA-2011-0567
FR Citation
77 FR 64696

Applicability

TypeManufacturerModelDetails
aircraft Boeing Company Airworthiness Directives; The Boeing Company Airplanes

Unsafe Condition

Flammable fluid leaks from the wing leading edge area onto the engine exhaust area, which could result in a fire.

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

Required Actions

Modify the fluid drain path in the leading edge area of the wing in accordance with Boeing Special Attention Service Bulletin 767-57-0121, Revision 1, dated July 27, 2011, as revised by Revision 2, dated January 10, 2012.

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

The Boeing Company Model 767-200, -300, -300F, and -400ER 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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