I fly a PA28, tbh, I’m surprised there’s not a fire extinguisher under the seat.
Out of interest, when you say you shut it down immediately,
You did pull the mixture to shut down, not just turn the mags off?
You seem to say you turned the mags off.
“I shut it down, the ignition (sic), was right in front of me”.
Could you clarify that?
Has anyone done a dead check on the aircraft?
(Totally unadvisable usually, turning the mags to off and back again on a running engine, to make sure they still short.)
I’d be looking for a share, with shares, the aircraft can be grounded, as it doesn’t have to earn it’s keep. In my experience, schools do not like to ground aircraft. Flew one with “intermittent flaps” once, “yeah, sometimes they work, sometimes they don’t”.
anyway, sounds electrical, but could you answer the 2 questions above?