The Valetta was authorised to carry out a pilot and navigation exercise from
RAF Thorney Island to
RAF Bovingdon and return. The flight was also to be used to transport a
rugby team for a match at
RAF Halton. The aircraft had completed the first leg from Thorney Island to Bovingdon with 16 passengers without incident. For the return flight an extra passenger was carried although the aircraft had only 16 passenger seats. The pilot had not played in the rugby match but the other crew members had. The Valetta took off at 17:16 with a visibility of 1200 yards in snow. The Valetta was seen to climb to about 400 feet then during a turn to the left it hit a tree five miles north of the airfield and crashed near Tom's Hill, Aldbury, on part of the Ashridge Park estate of the National Trust. The aircraft crashed onto a wooded slope when both engines were torn off. The fuselage continued for another 100 yards with a debris trail of wreckage and bodies. ==Rescue and aftermath==