AD 2003-12-01

final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 777 Series Airplanes

AD Number
2003-12-01
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 2002-NM-64-AD
FR Citation
68 FR 35160

Applicability

TypeManufacturerModelDetails
aircraft Boeing 777 Airworthiness Directives; Boeing Model 777 Series Airplanes

Unsafe Condition

Simultaneous failure of two static seals on one stabilizer trim control module (STCM), combined with failure of the automatic shutdown function of the stabilizer trim system, could result in an uncommanded stabilizer trim, loss of pitch control, and consequent loss of control of the airplane.

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

Required Actions

Inspect or review maintenance records for both stabilizer trim control modules (STCMs) to determine if STCMs with certain serial numbers are installed. Replace affected STCMs with new or reworked STCMs, which would terminate follow-on actions.

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

Compliance Time

Within 2 years after the effective date of this AD.

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

Affected Aircraft

All Boeing Model 777 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

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.

View Official Source ↗ Find More ADs for Boeing 777

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final rule

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final rule

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Airworthiness Directives; The Boeing Company Model 777-200 and -300 Series Airplanes Equipped With Pratt and Whitney Engines

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