AD 2011-10-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Dassault | Various | Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes |
Unsafe Condition
A potential dormant failure of the Ram Air Turbine (RAT) heating system could lead to freezing of the RAT mechanism, resulting in non-functioning of the RAT when needed.
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Required Actions
Perform a functional test of the RAT heater using an approved method. Repeat the functional test at specified intervals. If any test fails, repair the RAT heater before further flight using an approved method.
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Compliance Time
Within 650 flight hours after the effective date for airplanes without modification M0305 or Service Bulletin 7X-018. For airplanes with these modifications, within 1,900 flight hours after the effective date or after the modification, whichever is later.
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Affected Aircraft
Dassault-Aviation Model FALCON 7X airplanes, all serial numbers, 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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