EASA Issues Emergency AD on A330/340 | Aviation International News

EASA Issues Emergency AD on A330/340

Operators of Airbus A330 and A340 airliners are required to adjust operating manuals to guard against blockages in angle-of-attack probes under a new airworthiness directive from EASA.

By AIN Staff • AIN Staff

December 17, 2012

The European Aviation Safety Agency issued an emergency airworthiness directive December 4 for the angle of attack (AOA) probes of both the Airbus A330 and A340. The AD, which became effective December 6, results from an incident in which an A330 in the climb experienced a blockage of all AOA probes, leading to autopilot disconnection and activation of the alpha (angle of attack) protection system when Mach number increased.

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