AD 2009-13-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747-400 and -400F | Airworthiness Directives; Boeing Model 747-400 and -400F Series Airplanes Powered by Rolls-Royce RB211 Series Engines |
| engine | Rolls-Royce | RB211 Series | Airworthiness Directives; Boeing Model 747-400 and -400F Series Airplanes Powered by Rolls-Royce RB211 Series Engines |
Unsafe Condition
Automatic retraction of the leading edge flaps during takeoff due to indications transmitted to the Flap Control Unit (FCU) from the thrust reverser control system, which could result in reduced climb performance and consequent collision with terrain and obstacles or forced landing of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify certain thrust reverser control system wiring to the Flap Control Unit (FCU) in the P414 and P415 panels, including re-routing and re-terminating one wire for each engine, and replacing the wire if necessary.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 60 days after the effective date of this AD.
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Affected Aircraft
Boeing Model 747-400 and -400F series airplanes powered by Rolls-Royce RB211 series engines.
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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