If they test it first on the bench, they can tell you if the instrument if faulty or not.
For some unexplained reason they can get intermittent issues. Also there is more than one item which can wear, apparently, so if the shop fixes one thing, something else can fail soon after. However I agree it is not rocket science; I think there are “human factors” issues in the repair shops…
Peter !
This is exactly what I observed when rolling out from a steep turn (45°). It took tens of seconds to show that the wings were leveled.
Fortunately, when IMC, you don’t turn like that ;-)
On the bench, the AI was said to work properly (twice).
Can anyone provide his input about complety wrong erection (upside down or near) on start up ?
Does it evoke you specific failure from a technical / mechanical point of view ?
