Ah aircraft inventories ! I had the inventory of one of our Hercs when I was on 48 at Changi. I was summoned one day to the mighty paperwork empire to explain why I had 'lost' one Allison T56 engine from 'my ' aeroplane. My explanation that the a/c in question was 'down route' on a task and thus presumably had the full complement of said Allisons cut no ice with the system. My suggestion that the paoerwork could be in error was treated with derision.
The doctrine of infallibilty formerley residing in the medieval Popes had been seamlessly inherited by by these clerks.