United Kingdom

The airplane departed RAF Portreath on a ferry flight to Luqa, Malta, with an intermediate stop in Gibraltar. Few minutes after takeoff, the crew encountered engine problems and decided to return. The airplane lost altitude, descended over Camdorne then crashed on a disused chapel located in Roscroggan, less than 5 km southwest from RAF Portreath. All four crew members were killed.
Crew:
F/Sgt John Campbell Atkinson, pilot,
P/O Frank Samuel Day, observer,
Sgt Charles Richard Taylor, wireless operator,
Sgt John Orford Twelvetrees, air gunner.

The airplane departed RAF Coningsby on a practice bombing sortie. Shortly after takeoff, while climbing to a height of about 200 feet, the port outer engine failed. The airplane stalled and crashed near the airbase, killing the entire crew.
Crew:
airfield.
P/O Walter Beattie Carlyle, pilot,
Sgt John Kenneth Marshman, pilot,
P/O George Robert Hanna, observer,
Sgt John Teevin, wireless operator,
Sgt Alfred Maurice Blyth, wireless operator,
Sgt Robert Muir Mathieson, air gunner,
F/Sgt John Edward Start Walker, air gunner,
F/Sgt Albert Graham Gibson, air gunner,
Lac Herbert Roy Forster,
Ac1 George Edward Smith.

The pilot, sole on board, was performing a demo flight at the Blackburn Aircraft facilities based at Brough Airfield. While completing a low pass, the twin engine airplane clipped the roof of a hangar, stalled and crashed into the Humber River. The pilot was killed.
Crew:
P/O James Francis Haley, pilot.

The crew was engaged in a local flight at RAF Brize Norton on behalf of the 6th Maintenance Unit. For unknown reasons, the airplane swung to port on takeoff and crashed onto a hangar. All three occupants were killed, among them two civilians.
Crew:
W/Cdr Josef Ocelka, pilot,
Mr. Henry Fowler,
Mr. J. O. Mabbutt, mechanic.

The airplane departed RAF Waterbeach at 2340LT on July 19 on an operation to Vegesack. While returning to base the following night, it attempted to land in poor visibility when it overshot and crashed. All seven crew members were injured.
Crew:
P/O H. T. Miles, pilot,
Sgt P. Curtis, flight engineer,
F/Sgt G. L. H. Goodall, navigator,
P/O E. McCaffery, bomb aimer,
Sgt F. E. Mitchell, wireless operator,
P/O W. McAlpine, air gunner,
Sgt Herbert Henry Wright, air gunner.

The airplane departed RAF Middleton St George on an operation to Vegesack. En route to Germany, it suffered engine trouble so the crew decided to return to base. While approaching the base, one of the engine caught fire. The captain ordered his crew to bail out so five crewmen parachuted to safety. The pilot and the flight engineer attempted an emergency landing when the airplane crashed in Yarm, east of RAF Middleton St George, bursting into flames. Both crewmen were killed.
Crew:
W/O Wesley Leonard Belous, pilot, †
Sgt Fred Hebron, flight engineer, †
P/O Wilfred George Michael Rothschild, observer,
P/O Atkinson, bomb aimer,
Sgt William Charles Bacon, wireless operator,
Sgt Jacobus Petrus Van Lelyveld, air gunner,
Sgt Jack Davey, air gunner.

In unknown circumstances, the Boston collided with a second RAF Boston registered BT462 and crashed in Bracknell. Both crewmen were killed as well as four others in the second airplane.
Crew:
P/O R. J. Bennett,
Pvt B. Orviss.

In unknown circumstances, the Boston collided with a second RAF Boston registered AX921 and crashed in Bracknell. All four crew members were killed as well as both crewmen in the second airplane.
Crew:
P/O A. N. H. Tustain,
Pvt G. H. Palmer,
Pvt W. Barnett,
F/O A. C. R. McLure.

While cruising over the Snowdonia area, the airplane stalled and crashed on Mt Moelwynion. All five crew members were rescued.
Crew:
F/Sgt J. M. Foster,
F/Sgt L. Moss,
Sgt L. H. Ganner,
Sgt J. Haig,
Sgt J. A. Rawlinson.

The airplane suffered an engine failure and crashed while taking off from RAF Dishforth. There were no casualties.