Airworthiness Directive · Amendment 39-14897 · Dassault Model Mystere-Falcon 900 and Falcon 900EX Airplanes
Dassault Model Mystere-Falcon 900 and Falcon 900EX Airplanes
This AD applies to Dassault Model Mystere-Falcon 900 airplanes, certificated in any category, ranging from serial number (s/n) 1 through s/n 202 inclusive, without modification M5213 or M5236, and equipped with a third crew member passenger-type oxygen mask on the cockpit ceiling; and Dassault Model Falcon 900EX airplanes, certificated in any category, ranging from s/n 1 through s/n 156 inclusive, without modification M5213 or M5236, and equipped with a third crew member passenger-type oxygen mask on the cockpit ceiling.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as smoke or fire, which could be fanned by oxygen leakage from the third crew member oxygen mask box. This AD requires actions that are intended to address the unsafe condition described in the MCAI.
Unless already done, within one month or 30 flight cycles, whichever occurs first, after the effective date of this AD: Do a modification (application of epoxy resin to the oxygen box nuts and rivets), after doing a detailed inspection of the feeder cables and wiring for damage and correct location and all applicable corrective actions (repairing the feeder cable, re-routing certain wiring, or installing a protective plate), as instructed in Dassault Service Bulletin F900-366 or F900EX-277, both dated July 19, 2006, as applicable. Before further flight, do all applicable corrective actions.
Note 1: The aforementioned service bulletins cover Dassault Aviation modification M5213.
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.
