AD 2025-09-08

final rule
Data completeness: 80%

Airworthiness Directives; The Boeing Company Airplanes

AD Number
2025-09-08
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2025-0746
FR Citation
90 FR 18913

Applicability

TypeManufacturerModelDetails
aircraft Boeing Company Airworthiness Directives; The Boeing Company Airplanes

Unsafe Condition

Outboard elevators without balance weights could result in abnormal vibration, buffeting, flutter, or oscillation that could result in loss of continued safe flight and landing. Additionally, outboard elevators without balance weights could result in personal injury to maintenance personnel during installation or removal.

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Required Actions

Perform a maintenance records check to determine if outboard elevators, part numbers 654U6625-2411 and 654U6625-2412, are installed. Conduct a general visual inspection of the outboard elevators to determine if balance weights are installed. Take applicable on-condition actions, including a maintenance records check and general visual inspection for balance weights, and perform corrective actions as necessary.

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Compliance Time

Within the compliance times specified in Boeing Alert Safety Advisory 747-BSA-55-001, dated April 24, 2025.

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Affected Aircraft

All The Boeing Company Model 747 series airplanes, including 747-100, -100B, -100B SUD, -200B, -200C, -200F, -300, -400, -400D, -400F, -8, -8F, 747SR, and 747SP series airplanes.

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Source: Official FAA Source ↗

Retrieved: Apr 4, 2026

Rights: U.S. Government Public Domain

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