EASA issues emergency AD on Falcon 50 emergency brake installations

The European Aviation Safety Agency (EASA) issued an Emergency Airworthiness Directive (2010-0208-E) with regards to an inspection of emergency brake installations on Dassault Falcon 50 jets.

On two occurrences on Dassault Falcon 50 aircraft  in service, it was detected that two pipes of the emergency brake system #2 located near the nose landing gear bearing were swapped.

The swapping of these two pipes implies that when the Left Hand (LH) brake pedal is depressed, the Right Hand (RH) brake unit is activated, and conversely, when the RH brake pedal is depressed, the LH brake unit is actuated. This constitutes an unsafe condition, which may go unnoticed asthe condition is latent until the emergency brake system #2 is used. This condition, if not corrected, could ultimately lead to a runway excursion of the airplane.

The AD requires an inspection of the main landing gear braking system and, in case of findings, proper re-installation of the emergency brake system #2 pipes. It also requires painting the affected pipes for clear identification in order to avoid mistakes while reinstalling them after maintenance.

 

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