As remote as it may sound, with simultaneity comes the occasional surprise.
Conical Plates? I would first look to reject something peculiar to altitude, such as minute deformation of the pressure vessel. At 11.5, the pressure altitude has been reached, and passed, the skin is starting to flex independently of the outside pressure.
Odds? 10,000/1. Worse?
If loss of two ADR creates Alternate, and BUSS takes it to DIRECT, should (can) BUSS be deselected? Or preferred?
Last edited by Lyman; 8th Jan 2013 at 18:51.