Found and wrote up a defect in a jump plane. ... Corrosion pin hole in fuel line under the floor beneath the seat.
A/c had been flown in this condition for weeks by others and had red stains under the belly.. Found by chance as when replacing the floor hole cover . something moving reflected the light. Que.? Was the needle thin shoot of fuel hitting the floor side tin.... adding to a small puddle, Curiosity saved the cat.
It was the owner that blew up, (for the MR entry), fortunately not the aircraft.