Originally Posted by
FlyerJosh
If it's just a run up, then it's not loggable. If he goes out with the intent to fly and subsequently returns to the ramp after a bad magneto check, then that time can be logged.
This is incorrect.
14 CFR 1.1
Flight time means:
(1) Pilot time that commences when an aircraft moves under its own power
for the purpose of flight and ends when the aircraft comes to rest
after landing
You can't land when you never left the ground.