§ Sir R. Russell
asked the Secretary of State for Defence how many crashes of helicopters through engine failure on non-operational flights have occurred in any recent convenient period of twelve months; and how these accidents compare with the total number and mileage of flights.316W
§ Mr. Millan
During the twelve-month period ending 30th June, 1965, three Service helicopters crashed as the result of an engine power failure while undertaking flights of a non-operational nature. There were no fatalities. No records of mileage are kept for this purpose, but in the same period Service helicopters carried out 170,000 non-operational flights.