Sam Discusflyer wrote:
So why is it not possible to hook up the GPS unit to the PC connected to
the internet, connect with the key master and load the serial #?

Open up case, insert $2 microcontroller between GPS receiver and flight
recorder logic board, close case, call up manufacturer say "hey my
flight recorder unsealed itself", reload key, go set some world records.

The manufacturer or designated agent is supposed to inspect the interior
of the unit for tampering before resealing. Otherwise, there's not much
point to sealing it in the first place...

Marc