I recall the time taken to sort those problems out in the simulator, and that aircraft was only airborne for less than a minute, at night.
Don’t quite agree ExSpdbird. An instant glance at the Standby A.H. would have confirmed that it agreed with the F/Os ADI. Also a press of the Capts ADI test button would indicate the ADI failure – usually due to the CB tripping. That was an avoidable accident…