PPRuNe Forums - View Single Post - AF B772, GPWS averts CFIT
View Single Post
Old 24th May 2015, 22:41
  #36 (permalink)  
aterpster
Guest
 
Join Date: Apr 2009
Location: On the Beach
Posts: 3,336
Likes: 0
Received 0 Likes on 0 Posts
Misd:

GPWS (pre EGPWS) -

After making a crossing restriction the midnight crew accelerated for a high speed climb. GPWS - Terr....Pull... Both radar altimeters flash to below 200' and just as quickly the radar altimeters go away. So the crew thinks they've got a maintenance write up.
AAL 965, the 757 CFIT near Cali, Colombia, was also equipped with plain old GPWS. There was an informal consensus that had they retracted the spoilers immediately upon hearing the first "Whop! Whop! Pull Up!" put the throttles to the stops, while rotating, they may very well had cleared the ridge-line.

But, had that happened, it was problematic what their subsequent action would have been, for there was higher terrain to the left and straight-ahead. A climbing turn to the west would have worked, though.

That was the accident that resulted in EGPWS.
aterpster is offline