Air2gxs From , joined Dec 1969, posts, RR: Posted (12 years 3 months 4 days 12 hours ago) and read 980 times:
You're called to the flight deck B747 Classic. Capt's HSI showing the compass flag. You do all the normal, easy things, no help. Normal easy defined as: HSI, Compass coupler, INS and tried fiddling with the INS/Radio switch. Again, No help.
No significant history in the navigation system. What catches your eye is that this aircraft had a #2 & #3 electrical systems fail due to a split breaker meltdown and to make matters worse the #2 engines experienced an IFSD enroute to your station. All thise pesky problems have been fixed.
A little far fetched but we have had the compass problem gere and at previous lives. The second part is the set-up and hint.
B747skipper From , joined Dec 1969, posts, RR:
Reply 3, posted (12 years 3 months 4 days 8 hours ago) and read 891 times:
Dear Air2gxs -
Since you checked all other possible avenues for that captain's compass flag, the only reason, then, would be Standby IGN on #1 or #2... move the IGN selector back to NORMAL...