The book "Last Take-off" by Colin Cummings has the following -
Valleta VX490 of 48 Sqn.......after take off, the pilot cleared the airfield and stated his intention to climb to 4000ft. at 5 miles from the airfield. He also contacted a Dakota flying in the vicinity. In the middle of a transmission, contact was lost and nothing was seen of or heard from the aircraft. At the time there were storms in the area and several witnesses saw a flash and heard noises unlike thunder. It is thought that the aircraft suffered some sudden break up which did not allow the crew any chance to broadcast a distress signal or to recover the aircraft. Personnel were -
P/O Alfred Thompson....pilot
F/O Francis Wood....navigator
Sgt. David Bennett....air signaller
Cpl. Joseph Masterson....ground servicing crew
LAC Keith Holloway...
LAC Colin Jackson
AC1 Lewis Wallis