AD 2011-09-18
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
In case a short circuit occurs on a weight-on-wheels (WOW) proximity sensor wiring, both circuit breakers that supply power to that wiring will trip, causing simultaneous de-power of all WOW proximity sensors of that part of the system. The loss of the corresponding WOW information would lead to untimely inhibition of warnings that could compromise the pilot capacity to react to abnormal or failure landing conditions.
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Required Actions
Install dedicated fuses on WOW proximity sensors, in accordance with the Accomplishment Instructions of Dassault Mandatory Service Bulletin 7X-065, dated July 24, 2009.
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Compliance Time
Within 27 months after the effective date of this AD, or within 1,800 flight hours after the effective date of this AD, whichever occurs first.
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Affected Aircraft
Dassault-Aviation Model FALCON 7X airplanes, certificated in any category; except those having incorporated modification M1031.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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