Originally Posted by
xcitation
Am I correct in reading the ADS-B flight data that it took 15 seconds from level flight (Vert Speed 0 fpm) to rapid descent and losing contact.
Going half the speed would have bought some more valuable seconds unless it was a LOC incident.
Honest question: Do you see any indication in this pattern (from level flight to -5000fpm at 150kts+ in 15s) which would indicate anything else other than LOC (in the extended sense that it was not so much a mechanical loss of control but a loss of spatial orientation, aka incipient 'Graveyard Spiral')?