Zone

Crash of a Rockwell Aero Commander 560F near Wolf Creek: 3 killed

Date & Time: Dec 8, 1968 at 1055 LT
Registration:
N6257X
Flight Phase:
Survivors:
No
Schedule:
Great Falls - Missoula
MSN:
560-1115-33
YOM:
1961
Crew on board:
1
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
3
Captain / Total flying hours:
7157
Captain / Total hours on type:
107.00
Circumstances:
While in cruising altitude, the pilot encountered poor weather conditions with thunderstorm activity, turbulences, high winds and freezing rain. Under VFR mode, he lost control of the airplane that dove into the ground and crashed. All three occupants were killed.
Probable cause:
The accident was probably caused by the combination of the following factors:
- The pilot continued under VFR mode into adverse weather conditions,
- Loss of control for undetermined reason,
- Icing conditions including sleet and freezing rain,
- Turbulences associated with clouds and thunderstorms,
- Flew into known turbulences.
Final Report:

Crash of a Douglas C-47A-75-DL Skytrain near Helena: 6 killed

Date & Time: Jan 26, 1962 at 1530 LT
Operator:
Registration:
42-100861
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Helena – Cut Bank
MSN:
19324
YOM:
1943
Crew on board:
3
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
6
Circumstances:
On behalf of the Montana Air National Guard, the aircraft departed Helena Airport bound for Cut Bank, carrying a crew of three and three members of the Montana Government who were en route to a speaking engagement. Weather conditions worsened and the crew encountered heavy winds and snow falls. Control was lost and the airplane crashed in the Wolf Creek Canyon located about 25 miles north of Helena. The aircraft was destroyed and all six occupants were killed.
Crew:
Maj Clifford Hanson, pilot,
Maj Joseph Devine, copilot,
M/Sgt Charles Ballard, mechanic.
Passengers:
Donald Grant Nutter, Governor of Montana,
Dennis Gordon, executive secretary,
Edward Wren, commissioner of agriculture.
Probable cause:
Winds exceeding 100 mph sheared off one of the wings of the plane, causing it to crash in Wolf Creek Canyon north of Helena.