AD 2005-25-24

Recurring final rule
Data completeness: 80%

Airworthiness Directives; Boeing Model 777-200 and -300 Series Airplanes

AD Number
2005-25-24
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2005-21356
FR Citation
70 FR 74641

Applicability

TypeManufacturerModelDetails
aircraft Boeing 777-200 and -300 Airworthiness Directives; Boeing Model 777-200 and -300 Series Airplanes

Unsafe Condition

Worn, fretted, and fractured bolts that attach the yoke assembly to the flaperon power control unit (PCU) could lead to damage and eventual fracture of the yoke assembly, pin assembly, and attachment bolts. This could result in the flaperon becoming unrestrained and departing from the airplane, leading to asymmetric lift, reduced roll control, and potential damage to stabilizers, which could result in loss of control.

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

Required Actions

Conduct repetitive detailed inspections of the forward lugs of the PCU, yoke assembly, and forward attachment hardware of the left inboard, left outboard, right inboard, and right outboard flaperon PCUs. Perform other specified/corrective actions if damage is found, including tightening attachment bolts to a higher torque value. For certain airplanes, also install new, improved steel yoke assemblies with improved bearing retention.

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

Compliance Time

Within specified intervals based on flight hours or cycles, as detailed in Table 1 of the AD, starting from the date of issuance of the original standard airworthiness certificate or the date of issuance of the original export certificate of airworthiness.

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

Affected Aircraft

Boeing Model 777-200 and -300 series airplanes, with specific line numbers and engine types as detailed in Table 1 of 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 777-200 and -300

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