Posted for "John Cox" <johnwcox@pacificnw.com>:

Great post. Working for the airlines, we have to visually inspect the
p-seals on a more recurrent basis than annually.  There might have been
a slight chafe or beginning  tear from ingress/egress that was not
caught on a typical preflight.  Brings back memories of the (late)Payne
Stewart and the baggage strap missed on a rushed and late load.  My wife
and I have had heated discussions on the possible cockpit environment on
JFK jr's last flight (30 minutes prior to departure and 10 minutes prior
to termination).

Wonderful job getting down and correctly evaluating.

John