This was a very specific issue. AP & VNAV were engaged, it was just after takeoff but after Flap retract, yet speed reducing.
I talked to a SIM instructor on my next SIM and we tried to simulate the scenario. He did give an explaination, but it wasnt that clear, thus I cannot remember.
I am not flying the B767 now, so cannot quiz the other crews or SIM Instructors. (Id say it only very occasionally occurs in the aircraft, so SIM instructors may not have experienced it in the SIM) Only happened to me once in over 10 years on the Airplane.
Last edited by Soab; 29th Mar 2012 at 07:07.