
Détails:
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 crewÂ’s loss of directional control during landing on an ice- and water-contaminated runway, which resulted in a runway excursion.
| Statuts: | Accident investigation report completed and information captured |
| Date: | samedi 11 février 2012 |
| Heure: | 12:00 |
| Type/Sous-type: |  Learjet 31A |
| Compagnie: | MM Air Inc |
| Immatriculation: | N382AL |
| Numéro de série: | 31-192 |
| Année de Fabrication: | 1997 |
| Moteurs: | 2 Garrett TFE731-2-3B |
| Equipage: | victimes: 0 / Ã bord: 2 |
| Passagers: | victimes: 0 / Ã bord: 2 |
| Total: | victimes: 0 / Ã bord: 4 |
| Dégats de l'appareil: | Substantiels |
| Conséquences: | Repaired |
| Lieu de l'accident: | Wheatland-Phifer Airfield, WY ( Etats-Unis d'Amérique)
|
| Phase de vol: | A l'atterrissage (LDG) |
| Nature: | Ambulance |
| Aéroport de départ: | Denver-Centennial Airport, CO (APA/KAPA), Etats-Unis d'Amérique |
| Wheatland-Phifer Airfield, WY (KEAN), Etats-Unis d'Amérique |
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 crewÂ’s loss of directional control during landing on an ice- and water-contaminated runway, which resulted in a runway excursion.
Accident investigation:

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Photos
Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Denver-Centennial Airport, CO et Wheatland-Phifer Airfield, WY est de 275 km (172 miles).
Accident location: Exact; deduced from official accident report.
La distance entre Denver-Centennial Airport, CO et Wheatland-Phifer Airfield, WY est de 275 km (172 miles).
Accident location: Exact; deduced from official accident report.
Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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