R22 ENGINE STOPS
I recently read an article in the UK of 2No R22's which suffered engine failure due to air starvation. Apparently the paper air filter can get saturated with moisture when landing frequently on snow or when left outside overnight during rain / high moisture conditions.
Also any AAIB / NTSB subsequent investigations following any fatal accidents would find it difficult to determine the reason for the engine failure due to the filter drying out prior to the inspection of the aircraft
Older R22's had a spring loaded flap which would open if air starvation was a problem when newer models are not fitted with these flaps.
Any other incidents simular ?