Wright-Patterson AFB (Dayton)

The C-46 transport plane operated on a military cargo flight from Buffalo, NY to Patterson Field, OH carrying 8000 pounds of cargo. A fire started in the area of the fuel cross-feed valve, APU and gasoline heater. The floor structure weakened due to the intense fire and collapsed. The airplane descended on fire and crashed into trees.
Crew:
Cpt James Wyatt Hartzog,
2nd Lt Francis F. Munchrath,
M/Sgt Jacob Oswalt.
Source:
http://aviation-safety.net/database/record.php?id=19450126-1

The aircraft left Wright Patterson AFB at 2221LT on December 24 bound for Minneapolis-Wold Chamberlain Airport. At 2318LT, less than hour into the flight, the captain informed ATC he was returning due to strong head winds up to 54 mp/h. Due to the deterioration of the weather conditions at Wright Patterson AFB, the crew was vectored to Harrisburg where the cloud layer was up to 2,500 feet with a good visibility. Unfortunately, the weather conditions worsened in Harrisburg as well and it was impossible for the pilot to land. After five unsuccessful attempts, the captain reported he was short of fuel. At an altitude of 900 feet, the aircraft hit the slope of the Reesers Summit located 6 miles south of the airport, near York Haven. All four crew members and eight passengers were killed.

The C-40A was flying in formation with a C-54 registered 41-37271, so his crew could photograph the dropping of a dummy combat tank from the C-54. After the tank was released, the pilot of the C-40A made a quick turn to the left, striking the C-54 right wingtip. The C-40A entered a spin and crashed near the runway, killing all five crew members. The C-54 continued on for 700 feet, allowing two passengers to bail out. The plane then crashed in a vertical dive, killing three other crewmen.
Source: http://www.joebaugher.com/

The C-54 was flying in formation with a Lockheed C-40A Electra Junior registered 38-546, so his crew could photograph the dropping of a dummy combat tank from the C-54. After the tank was released, the pilot of the C-40A made a quick turn to the left, striking the C-54 right wingtip. The C-40A entered a spin and crashed near the runway, killing all five crew members. The C-54 continued on for 700 feet, allowing two passengers to bail out. The plane then crashed in a vertical dive, killing three other crewmen.
Source: http://www.joebaugher.com/

Shortly after take off from Wright-Patterson AFB, the aircraft stalled and crashed. The crew fate remains unknown.

Crashed in unknown circumstances 10 km east of the Wright-Patterson AFB. Crew fate unknown.

On final approach to the Wright-Patterson AFB, on of the wing hit a tree. The aircraft stalled and crashed in flames. All three crew members were killed. They were completing a cargo flight on behalf of the USAAF. For undetermined reasons, the aircraft was approaching too low.

Crashed in unknown circumstances at Wright-Patterson AFB. No casualties.

Crash on landing in unknown circumstances. No casualties.

After touchdown at Wright-Patterson AFB, the nose gear collapsed. The aircraft slid for several yards before coming to rest in flames. All seven crew members were able to leave the cabin before the aircraft was destroyed by fire.