Originally Posted by
TalkTorqueTorc
I don't do NFF's. Something can always be re-seated or 'Adjusted' or at the very least have a connector cleaned.
We got rid of NFF donkey's years ago. It became NFA - no fault apparent.
With NFF it implied that someone had actually looked and not found. NFA on the other hand could mean we went to the aircraft but there was no obvious fault to be found.
1. To avoid NFF/NFA break it properly so it has to be fixed.
2. If you go U/S down route make sure it is a very small, easy to change, obscure, but VITAL component. As it is small they may use the postal service and they may lose it. If it does arrive it can be fitted with minimal effort. It may well require an air test.
3. Don't go U/S for an engine change. This too may get lost in transit but requires far more effort to fix when it does arrive.