Airworthiness Directive · Amendment 39-16908 · Electrical power
Dassault Aviation Airplanes
This AD applies to 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.
We are adopting a new airworthiness directive (AD) for certain Dassault Aviation Model FALCON 7X airplanes equipped with certain ram air turbine (RAT) transformer rectifier units (TRUs). This AD was prompted by a report of incorrect design of the TRU part of the RAT system. This AD requires replacing any affected RAT TRU with a modified RAT TRU. We are issuing this AD to prevent loose internal wiring in the RAT generator, which could result in degraded direct current power to essential airplane systems while the RAT is deployed, which could adversely affect continued safe flight and landing of the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 28 months after the effective date of this AD, replace any RAT TRU having P/N 5913703 with a RAT TRU having P/N 5915825, in accordance with the Accomplishment Instructions of Dassault Mandatory Service Bulletin 7X-163, dated December 1, 2010.
As of the effective date of this AD, no person may install any RAT TRU having P/N 5913703, on any airplane.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
