Emergency AD: Falcon 50 fire extinguishing system inspection

The European Aviation Safety Agency (EASA) issued an emergency airworthiness directive, requiring inspection of the fire extinguishing system of Dassault Falcon 50 and Falcon 50EX aircraft.

On two occurrences on Falcon 50 aeroplanes in service, it was detected that two pipes had been swapped in maintenance at the frame 42 firewall. The swapped lines are the extinguishing system line to engine # 2,and engine # 2 Low Pressure (LP) bleed line.

If the swapping of these two lines is not detected and corrected, in case of engine # 2 fire, the fire extinguishing capability would not be operational.

For this reason, the AD requires an inspection of the connection of the two lines (extinguishing and LP bleed lines) at frame 42 in the rear compartment and, in case of findings, proper re-installation of the lines. This AD requires as well reporting to Dassault Aviation. This AD is considered to be an interim measure and, depending on the inspection results provided by operators, further AD action may follow.

 

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