Thanks for the further details!

"TaxSrv" wrote in message
news
"Gary Drescher" wrote:
Cool. But could you elaborate please?

If 500,000 flights, call it 200,000 hours for the flights. Much of
this occurs at a planned Y/E event, so it can be presumed NTSB will
note that relevant fact. A word search through the reports on
keywords should turn them up.
...
The overall accident rate is in this period is then 10/100K hours,
at 5/100K for Y/E, it's twice as safe using the raw data,
fender-benders included.

A problem with this methodology, it seems to me, is that other YE pilots
have reported here that it's possible to decide *retroactively* whether a
flight counts as a YE flight--a pilot might take the form along in the plane
and either turn it in afterward (assuming the pilot survived) or not. If
that's true, then we don't really know what proportion of flights may have
had accidents (fatal or otherwise) that were not reported as YE flights,
even though the flight would have been reported as such if it'd been
successful. That alone could easily distort the statistics by a factor of
two or more.

--Gary