emergency manoeuver/UAS memory items
Hi Auv-ee, Aguadalte and HN39
This emergency manoeuver (5°/CLB) of the UAS procedures mentioned in Business Week is the one suppressed at cruise altitude by Air France 5 days after the AF447 crash. It is in line with HN39 computations (Mach number decreasing close to the lower boundary of the A330 flight envelope at high altitude), and with the contribution of Aguadalte. But the crew involved in the BBC simulation successfully managed the UAS applying this memory item (5°/85% in the BBC simulation, to compare to the pitch/thrust tables in the QRH: 3.5°/78.9% if I remember correctly). The 2nd interim report states that this memory item has not really been implemented in the past UAS events (all planes remained in their flight envelope, even when they decided to initiate a descent when the stall alarms sounded): the AF447 may have been the first known aircraft to apply this memory item with the fatal consequences we know ?
Jeff