AD 2012-12-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Dassault | Aviation | Airworthiness Directives; Dassault Aviation Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Dassault Aviation Airplanes |
Unsafe Condition
Leakage failure mode of transient voltage suppression (TVS) diodes used on power distribution control units (PDCU) cards or generator control units (GCU) cards in the primary power distribution boxes, which, in combination with other system failures, could lead to loss of controllability of the airplane.
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Required Actions
Test the PDCU and GCU cards to detect faulty components, in accordance with Dassault Mandatory Service Bulletin 7X-133. If any faulty components are found, replace any affected PDCU or GCU card before further flight.
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Compliance Time
Within 9 months after the effective date of this AD.
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Affected Aircraft
Dassault Aviation Model FALCON 7X airplanes, certificated in any category, all serial numbers except those on which Dassault Aviation Modification M724 is embodied.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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