Summary of the Cessna 525A Citation CJ2 flight (Source;
AAIB):
Synopsis
As the aircraft approached its cruising altitude of FL430, the pilot was not monitoring the indicated airspeed and the aircraft stalled, departing from controlled flight in a series of five 360° rolls to the right. The pilot briefly regained control before the aircraft stalled again and in the following recovery, the aircraft’s wings were damaged in overload. The pilot made a successful landing and examination of the aircraft’s recorded data revealed that the angle of attack (AOA) sensing system had ‘stuck’ in flight and the aircraft’s stall warning system
did not operate prior to the stall onset. Two Safety Recommendations are made, relating to the continued airworthiness of the AOA sensing system.
Full report attached - fascinating reading with photos of the wing damage due to "higher" G loads than expected - an unintended "almost ultimate loads test" ;-)
Everything ended fine, BTW.
Regards
Grunf