Qantas 72
Printed page 3. PDF page 23.
2-second period the aircraft descended about 150 ft. Overall, the aircraft descended 690 ft over 23 seconds before returning to FL370. An animation showing the aircraft's movement during the first upset, based on the FDR data, is provided on theOpen official document at PDF page 23ATSB AO-2008-070: In-flight upset, VH-QPA, 7 October 2008