Penrhos AFB

During a training flight from RAF Penrhos, the twin engine aircraft hit the slope of Mt Craig Cwm shrouded in cloud and located southeast of Penygroes. All five crew members were killed.
Crew (9th AFU):
Sgt Jozef Szczerbaty, pilot,
F/Sgt James Davies, air gunner,
AC2 Ronald Ross, air gunner,
AC2 Philip Andrew Shields, air gunner,
AC2 Herbert Henry Sutton, air gunner.

While performing a training mission from RAF Penrhos, the crew encountered poor weather conditions. In low visibility due to the night, the twin engine aircraft hit the slope of Mt Foel Gron located east of Salem. Four crew members were killed while the Sgt Knight was seriously injured. He died a day later from his injuries.
Crew (9th AFU):
Sgt D. E. Johnson,
Sgt C. R. Morgan,
LAC J. R. Knowles,
LAC G. Ross,
Sgt C. Knight.

While flying in a valley in low visibility due to cloudy conditions, the twin engine hit the slope of Mt Moel Eilio located some 10 km southeast of Caernarfon, near the village of Betws Garmon. All five crew members were killed.
Crew (9th AFU):
Sgt Alfred Edward Clay, pilot,
Sgt Frederick Herbert George Trimmer, observer,
Sgt Bernard Henry Walter, observer,
Sgt Albert Walton, wireless operator and air gunner,
LAC Arthur Charles Lever, wireless operator and air gunner.

The twin engine aircraft left RAF Llandwrog located near Caernarfon at 0124LT on a night training exercise to RAF Penrhos. The crew contacted ground at 0132LT and this was the last radio contact ever. It seems the aircraft crashed into the sea while approaching RAF Penrhos as no trace of the aircraft nor the crew was ever found.
Crew (9th AFU):
Sgt Trevor Morgan Blakemore, pilot,
P/O Keith Charman, navigator,
Sgt John George Cairns,
Sgt John Mallett,
LAC Ronald Adam Simpson.

The airplane was engaged in a training sortie from RAF Penrhos. While circling off Wales, it suffered an engine failure and crashed into the sea off Abersoch. Five crew members were rescued and three others drowned.
Crew:
AC2 Peter Willibrord Kuck, †
AC2 Albert Edward Izzard, †
AC2 Richard John Marchant, †
S/L R. I. Jones,
Sgt Gibson,
AC2 Jones,
AC2 C. Desmond,
AC2 J. H. Pearson.

The crew was engaged in a local training exercise out from RAF Penrhos. Shortly after rotation, while in initial climb, the aircraft stalled and crashed, bursting into flames. Both pilots were killed.
Crew:
F/L Kenneth MacOnochie, pilot,
P/O Douglas Roy James Paterson, pilot.

The crew was completing a local training flight at RAF Penrhos when the twin engine airplane crashed upon landing for unknown reasons. Two crew members were injured and a third was unhurt.
Crew:
P/O A. M. Paape,
AC1 R. J. Ellicott,
Sgt G. Ryder.

Crashed shortly after take off from RAF Penrhos AFB, Wales, due to an engine failure. Crew fate unknown.

For unknown reasons, the twin engine airplane belly landed at RAF Penrhos on a flight from RAF Wyton. All three crew members evacuated safely while the aircraft was damaged beyond repair.

Following a bombing exercise off the RAF Penrhos, Wales, a formation of 14 Avro Anson was returning to its base at RAF Bircham Newton with an intermediate stop at RAF Sealand. En route, while flying southwest of Llandudno, the leader went through a foggy area and instructed all other crews to gain altitude. While on the left of the formation, the Anson was flying at a height of some 100 feet when its pilot decided to gain altitude. The twin engine aircraft went out of control and crashed into the sea of Penmaenmawr. All three crew members from the 220th Squadron were killed.
Crew:
Sgt William Henry Victor Rimer, †
AC1 Michael Kirwan, †
AC2 Kenneth Mark Butcher. †