dicko
"It's a formidable scent"
- Joined
- Jun 7, 2007
- Posts
- 1,432
Actually it was a failure of the #1 radio altimeter, which defaulted to zero feet. When that happened, #1 radio altimeter flag displayed, the auto-throttles which were engaged at the time took the zero to mean they were on the ground, so they retarted to idle. (autoland logic) during this time the trim wheel was spinning like crazy trying to trim nose up to stay in the air, that alone should have been a huge clue something was wrong, not to mention the airspeed indicator bleeding off with the stall bars rising.
Apperently there was a jumpseater in the cockpit and the crew was engaged in a pretty deep discussion, (ah`la or something)
The biggest clue would have been the throttles moving all the way back to the stop and the trim wheel spinning like crazy for 20 to 30 seconds while the nose pitched up to 8 to 10 degrees, if not more before they dropped out of the sky!
Actually ...... You just said the same thing I did. The RA read -8 feet which caused the AT to default to 'Retard'. This occurs at 27 feet.
The AT remained at idle for 100 seconds.