BOAC:
Quote : "Is there any (unlikely?) cross-tell between ADIRUs and ISIS?
EDIT: I do query PBL's diagnosis of the ISIS fault, however "At a similar time, the DG in the stand-by flight instrument system complains." - what is a 'DG'?"
The ISIS is a self containted intrument, no one knows what exactely is inside because stuff is still military classified
(when there's a glitch with it, maintenance sends it straight to Airbus. There's NO opening the case !
contains Gyro and accelerometers (says the FCOM)
It gets direct pitot and static inputs from the stby probe and port. There's no air data computer inbetween.
IT ALSO GET'S INFO from ADIRUs 1 and 3 !!
