Med flight = O2, maybe leak? Only take a spark if leaking. There was an Airworthiness directive around 2017 on the Lear 55's for flap structure that could affect control but if on fire before going with O2 leak.
I feel sorry for the Mexicans. A Lear 55 flying these days is a pretty rare sight. Then again any time one of those flies it is a rare sight. Lear didn't build many because they were obsolete 40 years ago.
I wonder if AI has anything to do with any of these? Scary that they just installed AI on one of our war ships. What if that AI wants to play thermonuclear war?