Originally Posted by airfranz
you get a master caution , single chime amber and it tells you to check your alt , hdg and att on the PFD , as if thats not enough most of the readings can be regained via the AIR DATA switch button
I'm afraid you're not correct here.
The answer to an
Inertial Reference System fault is through the
ATT HDG SWITCHING and if you don't proceed in time and accordingly that's where it's getting messy ...