Lockheed P-2 Neptune

Shortly after takeoff from Port Lyautey Airport, while climbing, the aircraft suffered an engine failure. The crew decided to ditch the aircraft off shore and was quickly rescued. The airplane sank and was lost.

Few minutes after takeoff from Keflavik, bound for the east coast of the US, the airplane went out of control and crashed into the sea about 80 km off shore. All nine crew members 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.

Engaged in a maritime patrol flight, the crew encountered marginal weather conditions when the aircraft hit the slope of a mountain located on Okinawa Island (Ryukyu Islands). All 11 crew members were killed.

While completing a maritime patrol flight, the aircraft was shot down by the pilot of a Chinese AF fighter and crashed into the sea off the Swatow Island. The airplane was lost and all 11 crew members were evacuated and transferred to the USS Halsey Powell.

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/

An undercarriage collapsed on landing. The aircraft slid for several yards before coming to rest in flames. All crew members were able to evacuate the cabin and were uninjured while the airplane was destroyed by fire.

The crew was completing a local training sortie at NAS Brunswick. On final approach with one engine inoperative (part of the training program), the pilot-in-command lost control of the airplane that stalled and crashed in flames in a wooded area. Four crew members were rescued while six others were killed.

The crew was performing a local training mission at RAF Burtonwood. On touchdown, the airplane went out of control, veered off runway and collided with a USAF C-47 registered 42-100912 that was holding for takeoff with a crew of ten on board. Both aircraft were destroyed and among the 12 occupants on board the Neptune, one was killed while 11 others were injured. On board the C-47, six crew members were killed while four others were injured. At the time of the accident, the visibility was limited due to poor weather conditions.

The aircraft was engaged in a night maritime patrol flight over the Japan Sea, and was attached to the USS Essex. En route, a propeller fell away from an engine and the crew decided to reduce his altitude and to ditch the aircraft about 165 km east of the North Korean coast (39°05'N - 130°11'E). The aircraft sank and was lost, five crew members were rescued while two others, R. J. Perkinson and K. K. Hathorn, were killed.