Originally Posted by
Educated Airman
About the loud thump heard in the CVR, the following is from the transcript of the Alaska Air crash due to tail plane jackscrew integrity.
1619:36.6 CAM [sound of extremely loud noise] [increase in background noise begins and continues to end of recording] [sound similar to loose articles moving around in cockpit]=left
1619:37 CAM-? *=left
1619:37.6 PA [sound similar to CVR startup tone]=left
1619:43 CAM-2 mayday.=left
1619:49 CAM-1 push and roll, push and roll.=left
1619:54 CAM-1 ok, we are inverted... and now we gotta get it….=left
1619:59 CAM [sound of chime]=left
1620:03 CAM-1 kick *=left
1620:04 CAM-1 push push push... push the blue side up.=left
1620:14 CAM-1 push.=left
1620:14 CAM-2 I'm pushing.=left
1620:16 CAM-1 ok now lets kick rudder... left rudder left rudder.=left
1620:18 CAM-2 I can't reach it.=left
1620:20 CAM-1 ok right rudder... right rudder.=left
1620:25 CAM-1 are we flyin?... we're flyin... we're flyin... tell 'em what we're doin.=left
1620:33 CAM-2 oh yea let me get *=left
1620:35 CAM-1 *=left
1620:38 CAM-1 gotta get it over again... at least upside down we're flyin.=left
1620:40.6 PA [sound similar to CVR startup tone]=left
1620:42 CAM-? *=left
1620:44 CAM-? *=left
1620:49 CAM [sounds similar to compressor stalls begin and continue to end of recording]=left
1620:49 CAM [sound similar to engine spool down]=left
1620:54 CAM-1 speedbrakes.=left
1620:55.1 CAM-2 got it.=left
1620:56.2 CAM-1 ah here we go.=left
1620:57.1 [end of recording]
No broken jackscrew....details are emerging, no problem with the airplane...wait a bit, much of it is sensitive to the crew and families