Originally Posted by ASFKAP
... I can count the number of IRS failures I've had on one hand, it was/is probably one of the most reliable systems on the aeroplane, I can't understand how this aircraft had over 100 IRS writeups like this....
Maybe this sentence out of the Investigation Report will help you to anderstand:
Originally Posted by Investigation Report
...Line maintenance rectification action was limited to re-racking and swapping IRU positions and associated components, resetting circuit breakers and cleaning connections when the faults became repetitive...
