On 1943-12-21, Squadron Leader A. Ross Dawson, Chief Technical Officer at Wombleton, wrote in his diary:
"One of 1679's Lancasters, DS521 [sic] got closed off our circuit last night due to bad weather & was diverted to Topcliffe. Here he overshot & hit the tail end of a Halifax parked on a dispersal. It tore the tail right off & the Lanc turned end-over-end & stopping flat on its back with its wheels in the air & caught fire burning up completely. Three of the boys got out alive miraculously but the other three were lost."