Narrative:
The operator reported that, as the airplane neared the destination airport, the flight crew prepared for landing. The runway appeared to have been plowed earlier in the day and was wet with a few patches of snow and ice. After a normal touchdown, the flight crew deployed the thrust reversers and applied brakes in an effort to gradually decelerate. The airplane began to veer to the right side of the runway and would not respond to the pilots' control inputs. The airplane continued off the runway surface traveling about 70 knots. The main landing gear collapsed and punctured the wings. The airplane incurred substantial damage to the right wing. The operator reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Probable Cause: The flight crews loss of directional control during landing on an ice- and water-contaminated runway, which resulted in a runway excursion.
| Status: | Accident investigation report completed and information captured |
| Date: | Saturday 11 February 2012 |
| Time: | 12:00 |
| Type: |  Learjet 31A |
| Operator: | MM Air Inc |
| Registration: | N382AL |
| MSN: | 31-192 |
| First flight: | 1997 |
| Engines: | 2 Garrett TFE731-2-3B |
| Crew: | Fatalities: 0 / Occupants: 2 |
| Passengers: | Fatalities: 0 / Occupants: 2 |
| Total: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Substantial |
| Aircraft fate: | Repaired |
| Location: | Wheatland-Phifer Airfield, WY ( United States of America)
|
| Phase: | Landing (LDG) |
| Nature: | Ambulance |
| Departure airport: | Denver-Centennial Airport, CO (APA/KAPA), United States of America |
| Wheatland-Phifer Airfield, WY (KEAN), United States of America |
The operator reported that, as the airplane neared the destination airport, the flight crew prepared for landing. The runway appeared to have been plowed earlier in the day and was wet with a few patches of snow and ice. After a normal touchdown, the flight crew deployed the thrust reversers and applied brakes in an effort to gradually decelerate. The airplane began to veer to the right side of the runway and would not respond to the pilots' control inputs. The airplane continued off the runway surface traveling about 70 knots. The main landing gear collapsed and punctured the wings. The airplane incurred substantial damage to the right wing. The operator reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Probable Cause:
Probable Cause: The flight crews loss of directional control during landing on an ice- and water-contaminated runway, which resulted in a runway excursion.
Accident investigation:
 |
|
Classification:
Runway excursion (veer-off)
Photos
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 Denver-Centennial Airport, CO to Wheatland-Phifer Airfield, WY as the crow flies is 275 km (172 miles).
Accident location: Exact; deduced from official accident report.
Distance from Denver-Centennial Airport, CO to Wheatland-Phifer Airfield, WY as the crow flies is 275 km (172 miles).
Accident location: Exact; deduced from official accident report.
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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