AD 2001-12-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Dassault | Mystere-Falcon 900 and Falcon 900EX | Airworthiness Directives; Dassault Model Mystere-Falcon 900 and Falcon 900EX Series Airplanes |
Unsafe Condition
Water collecting and freezing in the structure boxes at frame 25 could result in jamming of the flight controls and consequent reduced controllability of the airplane.
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Required Actions
Remove the existing protective screens riveted to the center beam and bonded to the frame and bottom of the underfloor structure boxes at frame 25, and install new wider-mesh screens riveted to the center beam and bonded to the frame only. Accomplish the actions in accordance with the applicable Dassault service bulletins.
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Compliance Time
Within 6 months after the effective date of this AD.
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Affected Aircraft
Dassault Model Mystere-Falcon 900 series airplanes with serial numbers 1 through 177 inclusive, and Model Falcon 900EX series airplanes with serial numbers 1 through 41 inclusive, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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