ASN Aircraft incident 05-NOV-2014 Airbus A321-231 D-AIDP

This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information. If you feel this information is incomplete or incorrect, you can submit corrected information.Narrative:During climb, 12 NM NW of Pamplona, at approximately Flight Level 310, the aircraft unexpectedly decreased the pitch autonomous and started to descend. The aircraft reached a rate of descent of up to 4,000 ft/min. The crew was able to stop the descent at Flight Level 270. The flight was continued and the aircraft landed safely at its destination Munich Airport.

Following this occurrence EASA released Emergency AD 2014-0266-E_1 to introduce a new flight crew procedure. The EAD described this incident as follows: An occurrence was reported where an Airbus A321 aeroplane encountered a blockage of two Angle Of Attack (AOA) probes during climb, leading to activation of the Alpha Protection (Alpha Prot) while the Mach number increased. The flight crew managed to regain full control and the flight landed uneventfully.

Sources:http://www.bea.aero/fr/enquetes/2014/2014.semaine.46.pdfhttp://ad.easa.europa.eu/blob/easa_ad_2014_0266_E.pdf/EAD_2014-0266-E_1Revision history:Date/timeContributorUpdates

18-Nov-2014 20:14	harro	Added
29-Dec-2014 13:11	Aerossurance	Updated [Time, Source, Narrative]

Number of views: 3484