For official information, download the 27 May 2011 update report titled ACCIDENT TO THE AIRBUS A330-203 FLIGHT AF 447 ON 1ST JUNE 2009
NEW FINDINGS FROM ABOVE REPORT
At this stage of the investigation, as an addition to the BEA interim reports of 2 July and 17 December 2009, the following new facts have been established:
- The composition of the crew was in accordance with the operator’s procedures.
- At the time of the event, the weight and balance of the airplane were within the operational limits.
- At the time of the event, the two co-pilots were seated in the cockpit and the Captain was resting. The latter returned to the cockpit about 1 min 30 after the disengagement of the autopilot.
- There was an inconsistency between the speeds displayed on the left side and the integrated standby instrument system (ISIS). This lasted for less than one minute.
- After the autopilot disengagement:
- the airplane climbed to 38,000 ft,
- the stall warning was triggered and the airplane stalled,
- the inputs made by the PF were mainly nose-up,
- the descent lasted 3 min 30, during which the airplane remained stalled. The angle of attack increased and remained above 35 degrees,
- the engines were operating and always responded to crew commands.
- The last recorded values were a pitch attitude of 16.2 degrees nose-up, a roll angle of 5.3 degrees left and a vertical speed of -10,912 ft/min.