Hi all,
Anyone seen this mcdu "
Chk IRS 1 or 2 or 3/ FM pos" message before?
from Fcom 4.03.38-
Each IRS position is compared to the FM position. The difference is greater than a threshold function of time
I have no idea what that means.....Can someone help plz?
I gather u check the position of that particular IRS vs FM pos, then? its in lat/long. what's the limit ( obviously its out of limit otherwise there would not be a mcdu amber message) .
If u are in the middle of taxying, what are the correct procedures to carry out?
Many Thanks.
