The two aircraft were part of a flight of four aircraft which had taken off from Linton-on-Ouse on a training exercise, where the two pairs were to make mock attacks on each other. However, the weather was deemed unsuitable for the exercise, and the decision was taken to return to base.
Unfortunately, during the return leg, and possibly whilst descending, it seems Flying Officer Leach mis-identified Leeds ( most likely Sheffield ).
A short while later, an attempt was made to contact the pair but without success. A search was conducted, and wreckage was spotted later the same day, spread over approximately half a mile.
The aircraft had flown into high ground on Sliddens Moss, about three miles from the Holme Moss TV transmitter. Sadly, both pilots were killed.
The crew were:
Flight Lieutenant DAVID MERRYWEATHER LEACH Pilot , WA971
Flying Officer TONY HAUXWELL Pilot , VZ518