Narrative:
A Beechcraft B100 King Air, N924WS, sustained substantial damage when it contacted a snow berm during landing rollout at Miles City, Montana. The airline transport pilot, commercial pilot, and three passengers on board the aircraft were not injured. The flight had originated at Billings Municipal Airport, MT (BIL) about 06:55. Instrument meteorological conditions prevailed at the time of the accident. There was no fire, and no report of the ELT actuating.
The crew landed on the runway in low visibility with the runway lights visible. After touchdown, the left main landing gear contacted a berm or snowbank on the left side of the plowed area, and the pilots were unable to maintain directional control. The aircraft drifted off the left side of the runway and came to rest on a reverse heading. The nose landing gear sheared as the aircraft left the runway. The runway, which was 100 feet in width, had been plowed to about 45.5 feet width along the centerline. No notams had been filed concerning the partially plowed condition of the runway.
PROBABLE CAUSE: "Failure of airport personnel to properly remove snow from the runway or issue an appropriate notam concerning the runway condition. Factors relating to the accident were: the low light condition at dawn, and the snowbank or berm that was left on the runway."
| Status: | Accident investigation report completed and information captured |
| Date: | Thursday 4 January 1996 |
| Time: | 07:45 |
| Type: |  Beechcraft B100 King Air |
| Operator: | West Star Aviation |
| Registration: | N924WS |
| MSN: | BE-63 |
| First flight: | 1978 |
| Total airframe hrs: | 9449 |
| Engines: | 2 Garrett TPE331 |
| Crew: | Fatalities: 0 / Occupants: 2 |
| Passengers: | Fatalities: 0 / Occupants: 3 |
| Total: | Fatalities: 0 / Occupants: 5 |
| Aircraft damage: | Substantial |
| Aircraft fate: | Repaired |
| Location: | Miles City Municipal Airport, MT (MLS) ( United States of America)
|
| Phase: | Landing (LDG) |
| Nature: | Domestic Non Scheduled Passenger |
| Departure airport: | Billings Municipal Airport, MT (BIL/KBIL), United States of America |
| Miles City Municipal Airport, MT (MLS/KMLS), United States of America |
A Beechcraft B100 King Air, N924WS, sustained substantial damage when it contacted a snow berm during landing rollout at Miles City, Montana. The airline transport pilot, commercial pilot, and three passengers on board the aircraft were not injured. The flight had originated at Billings Municipal Airport, MT (BIL) about 06:55. Instrument meteorological conditions prevailed at the time of the accident. There was no fire, and no report of the ELT actuating.
The crew landed on the runway in low visibility with the runway lights visible. After touchdown, the left main landing gear contacted a berm or snowbank on the left side of the plowed area, and the pilots were unable to maintain directional control. The aircraft drifted off the left side of the runway and came to rest on a reverse heading. The nose landing gear sheared as the aircraft left the runway. The runway, which was 100 feet in width, had been plowed to about 45.5 feet width along the centerline. No notams had been filed concerning the partially plowed condition of the runway.
Probable Cause:
PROBABLE CAUSE: "Failure of airport personnel to properly remove snow from the runway or issue an appropriate notam concerning the runway condition. Factors relating to the accident were: the low light condition at dawn, and the snowbank or berm that was left on the runway."
Accident investigation:
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Sources:
» NTSBPhotos
Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Billings Municipal Airport, MT to Miles City Municipal Airport, MT as the crow flies is 215 km (134 miles).
Distance from Billings Municipal Airport, MT to Miles City Municipal Airport, MT as the crow flies is 215 km (134 miles).
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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