venerdì 31 luglio 2009

Airbus A330-203 Air France AF447: nessuna novità

clipped from
photo of Airbus A330-203 F-GZCP
photo of Airbus A330-203 F-GZCP
over a time span of four minutes, starting at 02:10 UTC, a series of twenty-four ACARS messages were sent -automatically- from the plane. The messages indicated amongst other speed measurement inconsistencies, the disconnection of the autopilot and the airplane going into 'alternate law' flight control mode. This happens when multiple failures of redundant systems occur.
From 02:11 to 02:13, multiple faults regarding the Air Data Inertial Reference Unit (ADIRU) and ISIS (Integrated Standby Instruments System) were reported. Then on 02:13 the system reported failures of PRIM 1, the primary flight control computers that receive inputs from the ADIRU and SEC 1 (secondary flight control computers). The last message at 02:14 was a 'Cabin vertical speed' advisory.
The airplane had descended until it struck the ocean. Visual examination showed that the airplane was not destroyed in flight. It appears to have struck the surface of the sea in a straight line with high vertical acceleration.
Nemmeno Aviation Safety Network aggiunge novità. Non si hanno più notizie. Quando una notizia sparisce dai media, pochi giorni dopo nessuno se ne ricorda più.

L'ultimo rapporto el Bureau d'Enquetes et d'Analyses (BEA) è ancora del 2 luglio.

Chissà quando se ne saprà di più...

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