United States Air Force - USAF (since 1947)

The aircraft had been taking reconnaissance photos over the Yalu River at the China/Korean border. The plane was attacked by two Soviet MiG-15's (Maj A. Z. Bordun and St/Lt L. M. Dimchenko) and was severely damaged. Two of the engines on the left side had been shot up and were no longer operating. The crew managed to creep home to Johnson AFB (Iruma AFB). Upon their final approach for a crash landing the nose of the aircraft suddenly dove into the ground. Upon crashing, the plane split in half and the wings crashed over the front section, killing all but one occupant of the cockpit. The lone survivor from the cockpit was Harry Lavene who had been the tail gunner. While being attacked, military records shows that he was the first enlisted man to shoot down a MiG-15 from a B-29.
Source:
http://www.joebaugher.com/usaf_serials/1944_4.html

Crashed on landing for unknown reason. There were no casualties but the aircraft was written off.

After touchdown at Seoul-Kimpo Airport, the twin engine aircraft went out of control and came to rest damaged beyond repair. The pilot was unhurt.

Crashed in unknown circumstances 4,5 km north of Pyongyang, killing all three crew members.

Crashed on landing. Crew fate unknown.

Crashed on takeoff for unknown reason. Occupant fate remains unknown.

While completing a training sortie, the crew encountered poor weather conditions and was later forced to abandon the aircraft that ran out of fuel. All occupants were able to bail out and were later rescued while the aircraft dove into the ground and crashed in a field located seven miles northwest of Griffiss AFB, NY.

En route from Ogden-Hill AFB to McClellan AFB in Sacramento, the aircraft crashed in unknown circumstances in an isolated area located in the east part of California. As the aircraft failed to arrive at destination, SAR operations were conducted but eventually suspended few days later as no trace of the aircraft nor the crew was found. In May 1951, a rescue team taking part to the search of two fishermen discovered the wreckage of the airplane into the Lake Independence, about ten miles northwest of Truckee.

Crash landed at Loring AFB. No casualties.

The crew was completing a local training mission from Randolph AFB near Seguin. In flight, while cruising in cloudy conditions, the pilot lost control of the aircraft that dove into the ground and crashed in a field located five miles northeast of Seguin. All eight crew members were killed. Spatial disorientation on part of the pilot in command is suspected.