All World

While approaching the Spanish coast, the aircraft was shot down by the pilot of a German fighter and crashed into the Bay of Biscay, killing all 12 occupants.

Disappeared en route from North Island-Halsey Field NAS (San Diego) to Kaneohe Bay NAS, Hawaii. No trace of the aircraft nor the crew was ever found.

Lost without trace on a flight from Foggia to Catania. Probably crashed into the Tyrrhenian Sea. No trace of the aircraft christened 'Shanghi Lil' nor the crew was ever found.

En route from Hickam AFB (Honolulu) to Cooper Airfield on Palmyra Atoll, the aircraft disappeared into the ocean while approaching Palmyra. As the aircraft did not arrive, SAR operations were conducted but eventually suspended few days later as no trace of the aircraft nor the 14 crew members was found. The last radio contact with the crew reported a position about 80 km northeast of Palmyra Atoll.
Crew:
Lt Col James P. Barr Jr.,
Maj Elmer C. Best,
1st Lt Charles F. Bowers,
Cpt Jack E. Copeland,
S/Sgt Raymond G. Curtis,
T/Sgt Thomas W. Graves,
1st Lt William H. Henderson,
S/Sgt Carmelo A. Lauricella,
2nd Lt Vincent Leonard,
Cpt Floyd S. Lewis,
Cpt George H. McIlwain,
Cpt Marvin F. Stahl,
Pfc Louis A. Tomasulo,
1st Lt John J. Zidzik.

While on a maritime patrol flight, the aircraft suffered an engine failure. The crew attempted to ditch the aircraft that crashed into the sea. While the copilot was rescued, all other occupants were killed.
Crew:
F/O A. M. Cameron, †
F/O G. Ingram, †
F/Sgt N. B. Williams, †
F/Sgt O. V. Proud, †
Sgt C. Leslie, †
Sgt Ritche.

The crew left Milingimbi shortly after 1230LT on a shipping reconnaissance patrol. The aircraft failed to return and most probably crashed into the Arafura Sea. No trace of the aircraft nor the crew was found.
Crew (2nd Squadron):
P/O J. P. Oldridge, pilot,
Sgt R. F. N. Drake-Brockman, navigator,
F/Sgt D. N. Rumble, wireless operator air gunner,
F/Sgt J. F. Cullen, wireless operator and air gunner,
Sgt D. J. Petch.

The crew left Waller Field NAS at Trinidad on a maritime patrol flight. The aircraft failed to return and is supposed to have crashed into the Caribbean Sea, killing the entire crew.

The aircraft left Pocatello Airport at 0551LT on a training mission with 10 crew members on board. The program consisted on an overflight of Klamath Falls, Oregon, Fort Dick, California, then over the Pacific Ocean and eventually Hamilton Field before returning to Pocatello with an arrival scheduled in the evening. The crew contacted ground around 0820LT to confirm they overflew Klamath Falls about one hour earlier and this was the unique radio contact. Nothing further was heard from the aircraft or its crew. As the aircraft did not return to its base, SAR operations were conducted but eventually suspended after few days as no trace of the aircraft nor the crew was found. It is believed that the aircraft may have crashed into the Pacific Ocean, along the Oregon or California coast, but no trace was ever found.
Crew:
2nd Lt Donald E. Benton,
2nd Lt John J. Boniface,
2nd Lt Harry F. Brennan,
Sgt Connie C. Hagmeier,
Sgt Neil L. Hall,
2nd Lt Joseph L. Hertle,
Sgt Norman J. Moore,
Sgt Edward R. Pettrony,
S/Sgt Robert H. Schmidt,
Sgt James B. Shelton.

Lost without trace in the Gulf of Mexico with 9 crewmen on board.

While on a maritime patrol flight over the Bay of Bengal, the four-engine aircraft was shot down by the pilot of a Japanese fighter and was lost at sea. No trace of the aircraft nor the crew was found.
Crew (160th Squadron):
W/O J. Cohen, pilot,
F/O T. R. Pallet, copilot,
F/Sgt F. Somerville, navigator,
Sgt F. Bless, wireless operator and air gunner,
Sgt A. J. N. Owen, wireless operator and air gunner,
Sgt H. Isey, wireless operator and air gunner,
W/O L. A. Munson, wireless operator and air gunner,
Sgt F. E. Naylor, wireless operator and air gunner.