Is it mandatory to have AMM Reference of the task ( in xx-xx-xx format) when writing the description? Because I have all work order numbers/ order ref numbers/ MSN etc. however the exact task reference of AMM in xx-xx-xx is really hard to find.
I always put the AMM ref or equiv manual ref. if you've done the job it only takes a sec to note down the ref while you're at it.
The task card you used must have a Task reference, ie AMM ref, SB, MPD or suchlike.
Just note down the ref you used to look up when you actually did the job.