Atlantic Ocean

The crew was engaged in a rescue mission after an Icelandic trawler was missing. The aircraft crashed in unknown circumstances about 208 km west of Barra Island, Hebrides Islands. Few debris were found and none of the nine crew members survived the crash.

Enroute from the US to Europe, while in cruising altitude, the crew sent a brief mayday message, reporting an engine explosion. Shortly later, the airplane went into a dive and crashed into the Atlantic Ocean some 145 km southwest of Reykjavik. All nine crew members were killed.

The crew was engaged in a transatlantic flight from Lajes to Hamilton, Bermuda. Enroute, the captain informed ground that he was short of fuel and was unable to reach Hamilton. He reduced his altitude and ditched the airplane near the Echo weather station. A USCG crew was able to evacuate all eight crew members while the aircraft sank and was lost.

The aircraft was performing a flight from Patuxent River NAS to Port Lyautey, Morocco, with an intermediate stop at Lajes, carrying 21 crew members and 21 passengers, among them civilians and children. At 2330LT, the crew informed ATC about his position 400 miles east of Baltimore (Maryland), this was the last radio transmission. About an hour and a half later, while cruising at an altitude of 17,000 feet, the aircraft went out of control and crashed into the Atlantic Ocean without any distress call on part of the crew. SAR operations were conducted on a large area but were suspended six days later due to poor weather conditions. No trace of the aircraft nor the 42 occupants was found. It was reported by the board that the aircraft was also carrying 111 life vests, 46 exposure suits, 660 paper cups and 5 life rafts. All elements supposed to float. However, no trace of them was ever found.

Crashed in unknown circumstances into the North Atlantic while performing a flight between Iceland and Greenland. No trace of the aircraft nor the five crew members was ever found.

An engine caught fire in flight. Control was lost and the aircraft crashed into the Atlantic Ocean about 800 km northwest of the British coast. Six crew members were rescued while 17 others were killed. Later, two of the survivors died from their injuries.

Crashed in unknown circumstances into the Atlantic Ocean about 200 km northeast of Turks & Caicos Islands while on a flight from San Juan to Plymouth, Massachusetts. All 11 occupants were killed.

While cruising at an altitude of 11,000 feet enroute from Hamilton to Lajes, Azores Islands, the manifold pressure on the right engine dropped from 30 to 17 inches. The captain decided to return to Hamilton (Bermuda) for a safe landing but twenty minutes later, the right engine backfired while the manifold pressure increased to 20 inches. In such conditions, he decided to shot down the engine and feathered its propeller. Less than an hour later, while flying at an altitude of 3,000 feet, the left engine started smoking and lost oil. The crew eventually decided to ditch the aircraft near the weather station 'Echo' located in the Atlantic Ocean, east of the Bermuda archipelago. The aircraft sank and was lost while all ten crew members were rescued and evacuated by the crew of the USCGC Coos Bay.

The four engine aircraft was on its way from Stansted to Kingston, Jamaica, carrying RAF personnels and their family members. It left Lajes Airport in the Azores Islands at 2325LT on February 1st. While approaching the Canadian coast by night, the crew issued a brief emergency message whose content remains unclear. Shortly later, the aircraft crashed into the Atlantic Ocean, about 500 km southeast of Saint John's (approximately 46°15 latitude North and 46°31 longitude West). As the airplane failed to arrive in Gander, SAR operations were conducted but eventually suspended few days later as no trace of the aircraft nor the 39 occupants was found. Weather conditions at the time of the accident were considered as good.
Crew:
D. Nicholls, pilot,
P. E. Walton, copilot,
A. E. Chopping, navigator,
J. A. Davis, radio officer,
R. G. Lawrence, flight engineer,
P. M. Newton, stewardess.

In the early morning, two Neptunes of the Navy based at Quonset Point NAS were engaged in an anti-submarine warfare exercise off Block Island with the submarine USS Piper (SS-409) and the navy tug USS Hopi (AFT-71). Shortly after 0400LT, both aircraft rendezvoused over the Jamestown Bridge in Narragansett Bay, and headed for the operational area about 70 miles off Block Island. In unknown circumstances, the airplane banked right and then crashed into the sea. All eight crew members were killed.
Crew:
Lt Noble R. Kean,
Lt Thomas J. Tiernan,
A3c John R. Quirk,
A2c George A. Buehler,
Lt Seymour A. Moyl,
A1c Roland O. Eades,
Sea Salvatore A. Coia,
Sea Joseph A. gray.
Source:
http://www.newenglandaviationhistory.com/tag/p2v-neptune-124242/