No. 663 Royal Auxiliary air Force squadron was formed at Hooton Park on 01.7.1949 and maintained flights at Ringway,Llandow and Castle Bromwich until disbanded 10.3.57. The RAF Museum at Hendon should hold the record card for WE600 and from that you could find the incident date. It looks like it flipped over as a result of a forced landing,engine starting or brake incident.