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Thread: OEB Alpha Prot
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Old 21st Feb 2015, 17:44
  #22 (permalink)  
Clandestino
 
Join Date: Feb 2005
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Originally Posted by vodmor
FCOM DSC-22-40-10 When a FAC is disengaged (FAC pushbutton set off) but still valid, the flight envelope function of the FAC remains active.
Keyword might be "a".

As mucking with FACs to degrade control law is beyond the scope of line operations, FCOM can't be used as reference to what would happen. If the operator chooses to include handling in degraded laws in post-heavy-maintenance flight tests, which computers to shutoff, how, when and with what precautions will be included in test schedule. Absolutely nothing from it is allowed to be used in line flying.

Originally Posted by clunckdriver
This does not change the fact
...that only one FD was active yet alpha floor activated at 135 ft RA, too late to prevent the impact so your statement:

Originally Posted by clunckdriver
if Airbus had simply stated in training and manuals that having one F/D of and one on would inhibit Alpha Floor, {it was neither taught or in the manuals at this time} this crash would simply not have taken place.
...is quite false. Since you insist you are early bus pilot in America and so should be very well versed in Airbus, could you please explain us your misunderstanding of Airbus autoflight fundamentals? Or for that matter, fundamentals of any modern AFCS at all?
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