# NTSB DEN82FTG02: Mitsubishi MU-2B, N40AM, Williston, ND, December 8, 1981

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 8, 1981
- Place: Williston, ND · WILLISTON, ND
- Location: 48.1895° N, 103.6491° W: Placed by OpenAirDocs: center of Williston, ND, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=48.1895&lon=-103.6491&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report December 31, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 122877
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN82FTG02
- Page: https://openairdocs.org/ntsb/DEN82FTG02

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2942   81/12/8   WILLISTON,ND        MITSUBISHI MU-2B    CR-  0  0  1  NONCOMMERCIAL             AIRLINE TRANSPORT, AGE
        TIME - 1315                    N40AM               PX-  0  0  2  CORP/EXEC                 41, 9300 TOTAL HOURS, 650
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - SLOULIN FIELD
        DEPARTURE POINT             INTENDED DESTINATION
          CASPER,WY                   WILLISTON,ND
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
           GEAR COLLAPSED                                           LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER LEVEL OFF
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
```

## Aircraft

- Registration: [N40AM](https://openairdocs.org/aircraft/N40AM), registered now, S/N 427 S.A., built 1980 (OpenAirDocs)
- Reported make and model: MITSUBISHI MU-2B
- Registry model: [Mitsubishi MU-2B-40](https://openairdocs.org/model/mitsubishi-mu-2b-40) (registry code 5780440) (OpenAirDocs)
- Registry engine: [AiResearch TPE331 series](https://openairdocs.org/engine/airesearch-tpe331-series) (registry code 01514, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Engines: turbo shaft
- Damage: Substantial damage
- Airport: Sloulin Field

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19811208079219A](https://openairdocs.org/incident/19811208079219A), Dec 8, 1981: Mtsbsi MU2B40, Williston, ND, Substantial damage. Diving for runway, high sink rate. Impact off side runway . Collapsed nose gear.

## Other investigations on N40AM (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB FTW96LA215](https://openairdocs.org/ntsb/FTW96LA215), May 16, 1996: Mitsubishi MU-2B-40 (N40AM), Houston, TX, substantial damage. Probable cause: failure of the pilot to obtain/maintain proper airspeed and flap setting for single engine flight. A factor relating to the accident was: Loss of power in the left engine for an undetermined reason.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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