Was hoping anyone familiar with 757 operation would be able to comment on the UA Flight 93 CVR recording and time corresponding FDR readout data.
At the 9:40 mark of the CVR transcript, one of the hijack pilots refers to a green knob within the 757 cockpit. There seem to be no green colored knobs within a 757 cokpit.
http://i.a.cnn.net/cnn/2006/images/0...transcript.pdf
The only knob that may contain a green colored top is the 'baro' knob of the
Kollsman window.
http://i224.photobucket.com/albums/d...g?t=1211824617
5 minutes before the "green knob" reference there is a 25,000 foot drop in altitude of UA 93.
http://i224.photobucket.com/albums/d...g?t=1212009356
Wanted to know if operation of the Kollsman window baro-knob would be required following this drop in altitude.
Any other comments regarding the either 9/11 FDR study?
http://www.ntsb.gov/info/autopilot_AA77_UA93_study.pdf