That is one of the ones I didn't write about yet!
The third involved a jacket sleeve...
I'll post it -
ARMED JACKET KILLS ENGINE......
An R22 pilot had flown out early to the hills. Sensibly dressed for the early morning chill and the bush terrain he was to land at, all seemed well planned. The doors were removed before flight began as the weather was forecast to become hot and hunting was the aim.
The first landing was on a ridge. The sun was up and insolation made the temperature rise in the bubble, even with the doors removed. The Pilot didn't want to shut down, but he did want to remove his jacket. A solution - Slip off the jacket and slide it down the seat, sit on it. No need to make the passenger get out to put it in the seatbox, no need to shut down.
All fine then?
NO....! Later, during an approach to a confined area one sleeve of the jacket became lose and flapped out of the door aperture. Why would this be a problem? It couldn't go anywhere because it was firmly attached to the jacket, sat upon by the Pilot.
But engine air intake is on the right hand side, behind the door aperture. The sleeve flapped over it and was held there by suction. The engine requires more air as power demand (as in the late stages of a confined area approach) increases. As the Pilot added power to arrest ROD the sleeve was sucked harder and harder onto the intake until it blocked it completely.
The engine was starved of air.
It stopped.
Thankfully this happened at a height of 2ft. The Helicopter settled onto the level area the Pilot had selected for landing.No damage or injury was sustained and the sleeve (intake suction now gone as the engine breathed no more) innocently slid off and hung downwards.
Lucky, just so LUCKY!
The Pilot's summary of the occurence?
"I won't do THAT again......!"
( I'll bet he won't !! )