Big John wrote:

It basically came out that there were two spikes, one around 500 hours
and the other around 1000 hours. The 500 hour accidents were
attributed to cocky over confidence.

I read the same thing about ten years ago. As I recall, the 1000 hour spike was
also tentatively attributed to overconfidence.

George Patterson
A man who carries a cat by the tail learns something that can be learned
no other way.