I'm not in engineering but was the reason VH-QPE was in PER for almost 2 days because of the good weather in the west and people needed to spend time with their families. This in turn caused QF83 ex MEL to be canx and no one told the CSM so she turned up ready to operate but there was no one there.
It seems that this is the only thing that management will take notice of when it starts to cost a heap of cash.
Keep up the fight,
Rammel
P.S I also heard of another a/c which was in PER with 21 MEL items, I thought this was a large number or is it about the norm.