If I remember rightly, the problems Ansett had with the 767's were discovered by Ansett engineering. Ansett addressed the issues & self reported to CASA. I believe these problems were missed inspections on one occasion & a deactivated slide on the other.
CASA's response to the self reporting was to ground the 767 fleet for a period of time on both occasions - Christmas & Easter.
Will CASA be doing the same here & grounding Jetstar's A320 fleet while they investigate the missed inpections? After all, it is holiday time, which seems to be their favourite time for groundings. 2 weeks ought to do it!