Ministry of Defense revealed a report that during his RAF training Prince William grounded the Tucano aircraft after flicking a wrong switch that caused the aeroplane to overheat.
The statement has been made by Joe Watt, a City of York councillor and a former RAF engineering officer who retired from the service with the rank of squadron leader after a 23-year career.
Joe Watt said, “He flicked the wrong switch on shutdown and overcooked the turbo. I think he switched it back on. The engine tries to start again when it is stopping. He is not the only one, we have had two or three. Better pilots than him have done it.”
A Buckingham Palace spokesman said: “We are aware that this incident took place. But we can confirm there was no damage done to any aircraft during Prince William’s training”.
A spokesman for the RAF said: “No damage was done to an aircraft during Flt Lt Wales’s Tucano training on attachment to the RAF during 2008.”
Mr Watt is now the base manager of ITP, in Kettlestring Lane, Clifton Moor, York, which maintains and services the Tucano training aircraft initially flown by all RAF pilots.
The Tucano, which cost about £1 million have a top speed of 350mph.
26-year-old Prince William earned his RAF “wings” in April last year, becoming the fourth successive generation of the monarchy to qualify as an RAF pilot.
He is currently training to become a search and rescue helicopter pilot.