PPRuNe Forums - View Single Post - AF 447 Thread No. 10
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Old 5th Mar 2013, 17:31
  #842 (permalink)  
PJ2
 
Join Date: Mar 2003
Location: BC
Age: 76
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Of possible interest is the UAS table below from the A320, dated April, 1991. The table clearly provides pitch and power settings for all regimes of flight. This checklist is in contrast with what I think was and is a confusing UAS memorized drill & checklist combo. While the origins of the present mess of a drill / checklist are understandable (post Birgenair & Aeroperu), compared to this simple checklist which provides clear information on pitch/power settings for all flight regimes, the present drill remains open to interpretation as to when the safety of the flight is at risk. The present drill also requires a pitch change in cruise altitude when none is required.

While pulling a transport aircraft up to 10deg pitch while in cruise is a serious error, I think the memorized drill, if taught incorrectly or misunderstood (and it still isn't clear) can leave some pilots who may not get into the books very much, (as per DP Davies' thoughts posted earlier on 'working at the career' and learning) or otherwise just thinking about the drill and maybe asking questions, with the impression that "pulling up" somehow solves the 'problem'. Granted a 5deg pitch up at FL350 won't lead to stalling the airplane, but why destabilize the airplane in the first place?

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