AD 2011-27-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Dassault | Aviation | Airworthiness Directives; Dassault Aviation Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Dassault Aviation Airplanes |
Unsafe Condition
Incorrect design of the transformer rectifier unit (TRU) part of the ram air turbine (RAT) system could result in loose internal wiring, leading to degraded direct current power to essential airplane systems while the RAT is deployed.
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Required Actions
Replace any RAT TRU having part number (P/N) 5913703 with a RAT TRU having P/N 5915825, in accordance with Dassault Mandatory Service Bulletin 7X-163.
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Compliance Time
Within 28 months after the effective date of this AD.
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Affected Aircraft
Dassault Aviation Model FALCON 7X airplanes, all serial numbers, certificated in any category; equipped with any ram air turbine (RAT) transformer rectifier unit (TRU) having part number (P/N) 5913703.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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