Technical failure

While on a maritime patrol flight, an engine failed. The captain attempted to ditch the aircraft but the seaplane hit the water surface, broke in two and sunk some 20 miles north of Oahu Island. All nine crew members were killed.

While cruising at an altitude of 6,000 feet, the crew encountered marginal weather conditions with heavy rain falls and turbulence. The four engine bomber exploded in mid-air and dove into the ground before crashing in a field in a huge explosion. All 24 occupants were killed.
Crew:
William Driscoll,
Harold W. Olsen,
J. P. Hennessy,
Roy W. Sechler,
Reginald H. Gehman.
Passengers:
Vincent P. Hamilton,
William F. Price,
Richard M. Blake,
Edward F. Brick,
George J. Leary,
Roland F. Mosher,
Stephen J. Nagy,
Clesen H. Tenney,
Loran A. Umpleby,
Ralph G. Wills,
Robert E. Boyd,
James E. Patterson,
Robert L. Marshall,
Flyod K. Relyea,
Joseph L. Arrigotti,
Albert Engasser,
Frederick L. Mootz,
George S. Moss,
Clarence K. Smith.

En route, the crew encountered unknown technical problems and completed an belly emergency landing. There was no casualties but the aircraft was written off.

The crew departed Nassau-Lynden Pindling Field on a local training mission. Shortly after takeoff, the right engine failed. The crew was unable to maintain a safe altitude and the aircraft stalled and crashed into the sea some 500 yards offshore, about 7 km northeast of the airport, near the Balmoral Island. The aircraft was destroyed and both crew members were killed.
crew:
F/O John Walter Wood, pilot,
F/O Maurice Francis O’Neill, copilot.

En route, while on a training flight from New Plymouth, the aircraft suffered a fuel exhaustion and the crew was forced to attempt an emergency landing. The aircraft came to rest in Makaranui, near Ohakune. While all three occupants were unhurt, the aircraft was damaged beyond repair.

En route from Banak to Trondheim, while cruising north of Narvik, the four engine aircraft went out of control and crashed into the Lavangen fjord, east of Harstad. All 51 occupants were killed, among them 41 Luftwaffe Helferinen (female military assistants).
Crew (III./7./KG 40):
Lt Hans Gilbert, pilot,
Oberfw Gert Jochums, copilot,
Oberfw Martin Hochmuth, radio operator,
Fw Hubert Langguth, flight engineer,
Fw Hans Prahl.
Passengers:
Cpt Maj Franz Krenn,
Obering D. L. Bömike,
Cpt Eduard Clement,
SS-Rottenführer Emil Widmer,
Kriegsmarine Obermaat Eugen Däumichen.
Stabshilferin Passengers:
Edith Allihn,
Erika Busack,
Anny Chalupnik,
Irmgard Dorth,
Anneliese Ebert,
Gerda Fiebke,
Irmgard Friedrich,
Anna Glaser,
Ruth Griebsch,
Elsbeth Grommisch,
Anna Göring,
Barbara Hill,
Elisabeth Hoffmann,
Emma Hoffmann,
Theresia Hoffmann,
Irmgard Karp,
Hildegard Krause,
Edith Krüger,
Ingeborg Kruschewitz,
Margrete Leuschner,
Charlotte Nickel,
Lieselotte Oeffner,
Brunhilde Otto,
Ilse Otto,
Eveline Peters,
Hilda Röstel,
Franziska Ruhl,
Anni Schima,
Charlotte Schmidt,
Erika Schöne,
Margarete Seibert,
Marianne Seidel,
Hildegard Siegler,
Irma Sorgatz,
Gertrud Staeglich,
Christel Stappen,
Elsbeth Streletzki,
Angela Trenz,
Emma Wagner,
Gunda Weber,
Elisabeth Wiesenhütter.
Source & photos: http://ktsorens.tihlde.org/flyvrak/salangen.html

The crew was performing a circular test flight following maintenance and left RAF Wendling shortly after noon. After a first circuit completed uneventfully, the aircraft was approaching the airfield and while crossing the last cloud layer, at a height of 300 feet, the number three engine failed. Despite several correction on part of the pilot, the aircraft became unstable and the crew attempted an emergency landing when the left wing hit a tree. Out of control, the aircraft christened 'Flying Crusader' crashed in flames in a field. As four crew members were injured, the radio navigator was killed.
Crew (578th BS):
Cpt Allen Ben Alexander, pilot,
1st Lt Presley Broussard, copilot,
1st Lt Tom Kirkwood, navigator,
T/Sgt Rupert Sutphin, flight engineer,
T/Sgt Frank E. Gallo, radio operator. †

An engine failed en route, forcing the crew to reduce his altitude and to attempt an emergency landing near Kunming. While the aircraft was damaged beyond repair in the accident, all four crew members were unhurt.

The crew was engaged in a night maritime patrol flight over the Pacific Ocean. En route, the pilot encountered unclear technical problems and reduced his altitude in an attempt to make an emergency landing. On landing, the seaplane overturned and sunk some 200 km off Koror, Palau Island. While seven crew members were rescued, three others were killed.

During an anti-submarine mission, one of the engine failed. The captain reduced his altitude in an attempt to ditch the aircraft when control was lost. Aircraft dove into the sea and crashed few miles off shore. All five crew members were killed.
Crew (1st Squadron):
P/O George Parker,
P/O Thomas Vautier,
F/Sgt Leo Comesky,
Sgt Barry Rosenberg,
Sgt Leslie Smith.