Originally Posted by
STLTH
Yes it was GPS equipped, the correct offset was displayed on both ND’s, ADIRS were within limits but not sure about the NAV Accuracy, didn’t check that. We deleted the offset and re inserted it and that fixed the issue.
That's interesting, I have had it before when one ND display does not match the other, eg. One showing a cross track error but the other is correct. Maybe even a possible coding error in the FM database, computer Voodoo!