The UK RAF had a military Nimrod crash in 2006. One of the outcomes of the crash was
Haddon-Cave which was a pretty scathing review of how the UK MoD had approached airworthiness. The review forced a complete change of military airworthiness oversight and regulation.
General malaise
11. The Nimrod Safety Case process was fatally undermined by a general malaise: a widespread assumption by those involved that the Nimrod was ‘safe anyway’ (because it had successfully flown for 30 years) and the task of drawing up the Safety Case became essentially a paperwork and ‘tick- box’ exercise. (Chapter 11)