AD 2025-15-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
uncommanded fore and aft movement of the Captain's and First Officer's seats which, during a critical part of a flight such as takeoff or landing, could cause a flight control obstruction or unintended flight control input, which could result in the loss of the ability to control the airplane.
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Required Actions
identifying the part number, and the serial number if applicable, of the Captain's and First Officer's seats and applicable on-condition actions for affected seats, including inspecting the fore/aft and vertical manual control levers for looseness, installing serviceable seats, and doing a seat functional test after any cable adjustment. A one-time detailed inspection and repetitive checks of the HMS for the Captain's and First Officer's seats and applicable on-condition actions, including clearing the seat tracks of foreign object debris (FOD), overhauling the HMS, and replacing the horizontal stabilizer.
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Compliance Time
Within 50 flight hours
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Affected Aircraft
The Boeing Company Model 777-200, -200LR, -300, -300ER, and 777F series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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