Idaho

Shortly after liftoff from Blackfoot-McCarley Field, while in initial climb, both engines failed simultaneously. The pilot attempted an emergency landing when the airplane belly landed in a field located past the runway end and came to rest. All three occupants were slightly injured and the aircraft was damaged beyond repair.

While in cruising altitude, the left engine caught fire and exploded. Shortly later, the left wing separated. Out of control, the airplane dove into the ground and crashed near Fairfield, killing all five occupants.

Shortly after takeoff from Twin Falls-City County Airport, while climbing, the right engine lost power. As he was unable to feather the right propeller, the captain decided to reduce his altitude and completed a belly landing in a field located in Buhl, some 16 miles northwest of Twin Falls Airport. The aircraft was damaged beyond repair and all three crew members were unhurt. They were completing a local flight on behalf of the United States Department of the Interior.

While descending to Boise International Airport by night and marginal weather conditions, the crew failed to realize his altitude was too low when the airplane struck a mountain located 10 miles northeast of the airfield. The aircraft was totally destroyed and both pilots were killed.

On approach to Boise Airport, the pilot initiated a go-around procedure when the aircraft struck a dirt bank and crashed, bursting into flames. Both occupants, performing a demo flight, were killed.

The crew was engaged in a firefighting mission in the region of Salmon, Idaho. While cruising a low height, the crew failed to realize his speed was too low when the airplane stalled and crashed in flames. The aircraft was destroyed and both crew members were killed.

The Tri-Motor took off from the Grangeville to deliver goods to the backcountry airstrip at Moose Creek on the Nezperce National Forest and to drop two smokejumpers on a fire burning on Pettibone Ridge. Aboard the aircraft were a forest supervisor, a smokejumper foreman and two smokejumpers. When landing at Moose Creek to drop off the supplies before dropping the jumpers, the aircraft crashed into the trees at the end of the dirt runway and burst into flames.

The crew was returning to his base in McChord after he took part to an airshow at Ogden-Hill AFB, supplying the Thunderbird's team. While flying in cruising altitude, the airplane went out of control, dove into the ground and crashed in a field located seven miles east of Payette. The airplane was totally destroyed upon impact and all 19 occupants were killed, among them two civilians.

The flight originated at Boeing Field, Seattle, Washington, with the first stop scheduled at Cheyenne, Wyoming. The crew consisted of Captain Lawrence B. Crawford, First Officer Maxwell F. Perkins and Stewardess Marie Davis. Prior to departure the aircraft was serviced with 738 gallons of fuel and 20 gallons of oil, bringing the total on board to 1,020 gallons of fuel and 60 gallons of oil. Pre-flight inspection was performed by the crew. The gross weight of the aircraft at departure was 45,401 pounds or 401 pounds over the maximum allowable gross weight of 45,000 pounds authorized for passenger operations; 3 the distribution of the load on board, however, was within the prescribed center of gravity limitations. Weather briefing of the crew by the United States Weather Bureau at Boeing Field indicated en route weather to be scattered to broken clouds to overcast with the tops estimated at 12,000 feet and a Cheyenne Terminal Forecast of scattered clouds at 15,000 feet, visibility of more than 15 miles. The weather briefing included a forecast of icing conditions in clouds and precipitation above 6,000 feet along the route, with cloud tops ranging from 10,000 to 14,000 feet MSL. An IFR (Instrument Flight Rules) flight plan, filed by Captain Crawford and approved by the Civil Aeronautics Administration Air Route Traffic Control, Seattle, requested a cruising altitude of 13,000 feet to Cheyenne via Airways Green 2, Blue 12, Blue 32, Red 1, and Green 3, with a proposed air speed of 200 mph, estimated elapsed time five hours, with six hours and forty minutes of fuel aboard, alternate airport, Denver, Colorado. The flight departed Boeing Field at 0050 and made the required position reports along the route, with no mention of any irregularities, reporting over Malad City at 13,000 feet, time 0358, and estimating Rock Springs at 0445. There were no further radio contacts with the aircraft. All attempts to contact the flight by CAA radio stations and by other aircraft along and bordering the proposed route were unsuccessful. A widespread search for the missing aircraft was subsequently conducted under the supervision of Air Search and Rescue units of the United States Air Force. The wreckage was found eight miles west of Fish Haven five days later by the pilot of reconnaissance aircraft and all 40 occupants have been killed.

The crew was completing a local training flight at Mountain Home Airport, consisting of touch and goes. After takeoff, while in initial climb, the four engine bomber went out of control and crashed in a huge explosion about 1,300 feet past the runway end. The aircraft exploded on impact and disintegrated, killing all seven crew members.