1st. Engine failure whilst training with instructor. Told to goaround from 200 feet...engine wouldn't respond, ended up in middle of corn field..lesson learnt even when practising treat each approach as a potential full landing, just in case.
2nd. engine failure whilst instructing, piston broke up in C150, fl from deadside of runway onto crosswind runway, learnt that pfl from overhead field very useful. I always start teaching pfl technique from overhead airfield and always trust your own instinct, for example always believe that slight rattle, surge, reluctance to start, is the begins of something potentially serious.This aircraft ran rough on occasions which was cured by carb. heat application, not unusal for C150Fellow instructor remembered my advice, he had experienced a rattle on TB20 whilst mid channel, turned out the camshaft was shagged.
3rd failure engine trying to cut out whilst at altitude during stall practise. Above haze out of visual range of airfield, first i should of asked for QDM, couldn't pick up the NDB, let some else do the navigation. Engine picked up during descent, joined overhead and landed. Engine cut out on landing. Try to restart twice, engine caught fire. Vacated and used fire extinguisher. Faulty carb. float had flooded engine. Apparently an AD on the carb. hadn't yet been complied with.
4th failure, exhaust valve dropped into engine at 1400 feet whilst doing trial lesson. saw field, totally comitted myself to land in it. Ended up bang in centre of field. Comitment is the most important thing in forced landing success..you will make it..and it will always take a lot longer than you think for someone to come and pick you up, this day, for the first time i left my jacket in flying club, of course it then poured down with rain whilst i waited at side of road for pick up. Lesson learnt..never fly without a coat or jacket. Never know where you are going to end up.