Most industry folks follow agreed definitions and "crash" is not one of them
start with incident "
minor" than "
serious" and then "
accident" and finally "
catastrophe".
Most of the stuff clogging PPrune on something everyday is "
minor" and not worthy of more than a post or two (easily available info in the trade although untrustworthy in the news)
Of more interest are the "
serious" incidents where a significant loss of function has occurred affecting safe flight and landing. Where safe flight is not assured (let's not talk about heroes
Certainly worthy of a couple of pages on PPrune.
Then the catch all "
accident" which captures serious injuries requiring hospitalization for time and/or extensive aircraft damage costing mucho $$
PPrune spends days discussing this stuff
and last
"Catastrophe" which includes loss of aircraft with multiple fatalities (pretty rare stuff) but worthy of months of discussion while awaiting a report.
OK I admit that the above is not official (although close to it) but kind of sums up our everyday banter on PPrune