Leinster

Shortly after take off from the Castle Archdale Seaplane Base, an engine failed. The crew jettisoned some charges and fuel. Later, the captain decided to attempt an emergency landing but the aircraft crashed in Corlea, some 40 km south of RAF Castle Archdale. Three crew members were killed.

The crew was performing a training mission on behalf of the 10th Radio School based in RAF Carew Cheriton. While cruising off the Irish coast in good weather conditions, the twin engine aircraft went out of control and dove into the sea. The crew of a fishing boat went to the scene and was able to recover one body while all three other occupants were lost.
Crew (10th Radio School):
F/L R. I. Johnson,
F/S R. J. Tudehope,
F/S S. J. H Young,
AC2 R. R. Carr.

The airplane departed Fayid Airport in Egypt on a liaison flight, carrying 19 crew members. In the early morning, while approaching Dundalk, it impacted the slope of Mt Slievenaglogh and disintegrated. Fourteen crew members were killed and five others were injured. Three days later, one of the survivors died from injuries sustained.
Crew:
W/Cdr Richard John Wells, pilot, †
P/O John Peile Tolson, pilot, †
P/O Wilfred Bertrand Stephens, pilot, †
F/Sgt George Buchanan, pilot, †
Sgt Paul Herrick Morey, observer, †
F/Sgt Carlton Stokes Goodenough, observer, †
F/Sgt Leslie George Jordan, observer, †
P/O George Frederick King, observer, †
Sgt Henry James Gibbons, wireless operator, †
Sgt Charles Joseph Ingram, wireless operator, †
Sgt Walter Paul Brooks, wireless operator, †
F/Lt Francis Charles Barrett, air gunner, †
F/O James Robert Anderson,
Sgt Cyril Rowland Amos,
F/Sgt Lindsay Ross Williams, †
Sgt Thomas Edward Pattison,
Sgt Sydney Frederick Hayden,
Sgt Andrew McMillan Smith Brownlie, †
F/Sgt Herbert William Thornley Sloman. †

The pilot departed Baldonnel-Casement AFB on a local banner and glider towing exercise when the airplane crashed for unknown reasons shortly after takeoff. The pilot was rescued.

The airplane entered the Irish airspace at 0835LT and landed at Baldonnel-Casement Airport at 0924LT after the crew reported they were low on fuel. The crew were given food and rest then the airplane was unarmed and cleared to depart. It took off at 1320LT bound for Belfast-Aldergrove Airport. Flying to the north, the crew encountered poor visibility when the airplane impacted a hill located near Jenkinstown, bursting into flames. All three crew members were killed.
Crew:
F/Lt Louis Romeo Dubuc, pilot,
Sgt Frederick James Goodwin, observer,
Samuel Raymond Kenny, radio operator.

The bomber was shot down by a Hurricane and crashed near Carne, southeast of Ireland. All five crew members were killed.
Crew:
Ofw Rudolf Peschmann, pilot,
Reg. Rat Herbert Rumpf, observer,
Uffz Alois Mittermeier, radio operator,
Ogfr Hubert Moderzewski, radio operator,
Uffz Josef Niebauer, mechanic.

The airplane departed RAF Lindholme at 2030LT on April 17 on an operation to Berlin. While returning to base, it overflew the United Kingdom, crossed the Irish Sea and eventually crashed on a hillside near Blessington. All four crew members were killed.
Crew:
P/O John Kenneth Hill, pilot,
Sgt John Thompson Lamb, pilot,
Sgt Stanley Wright, wireless operator,
Sgt Frederick Henry Erdwin, wireless operator.

The airplane departed Paris-Le Bourget Airport on an operation over the Merseyside area. Along the Irish coast, it was shot down by the pilot of a Hurricane and crashed into the sea off Wexford. All five crew members were killed.
Crew:
Oblt Hans Kohler,
Fw Horst Birkholz,
Uffz Rudolf Firchau,
Gefr Franz Günther,
Fw Martin Lippert.

After takeoff, the floatplane went out of control and crashed into the sea off Saltee Islands, south Ireland. All crew members were rescued by another DO.18.

The pilot Reginald Good was performing a solo flight and departed Baldonnel Airport in the day. En route, the single engine aircraft impacted the slope of Mt Little Sugar Loaf located south of Bray, some 23 km southeast of Dublin. The aircraft was destroyed and the pilot was killed.