# NTSB MKC72FCD49: Mitsubishi MU-2B, N251M, Lemars, IA, December 22, 1971

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: December 22, 1971
- Place: Lemars, IA · LEMARS, IA
- Location: 42.7815° N, 96.1733° W: Placed by OpenAirDocs: center of Le Mars, IA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.7815&lon=-96.1733&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 uninjured
- Status: Completed, report July 10, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 164846
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC72FCD49
- Page: https://openairdocs.org/ntsb/MKC72FCD49

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4227  71/12/22   LEMARS,IOWA         MITSUBISHI MU-2B    CR-  0  0  1  NONCOMMERCIAL             AIRLINE TRANSPORT, AGE
        TIME - 2030                    N251M               PX-  0  1  0  CORP/EXEC                 29, 6873 TOTAL HOURS, 180
                                       DAMAGE-NONE         OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - LEMARS
        DEPARTURE POINT             INTENDED DESTINATION
          LEMARS,IOWA                 CHICAGO,ILL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR ACCIDENT TO PERSON                       STATIC: IDLING ENGINE(S)
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - EXERCISED POOR JUDGMENT
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PASSENGER
        REMARKS- PAX WALKED INTO ROTATING R PROP.
```

## Aircraft

- Registration: [N251M](https://openairdocs.org/deregistered/N251M-2004-04-01), registration cancelled 2004-04-01, S/N 013, built 1966 (OpenAirDocs)
- Reported make and model: MITSUBISHI MU-2B
- Registry model: [Mitsubishi MU-2B](https://openairdocs.org/model/mitsubishi-mu-2b) (registry code 5780404) (OpenAirDocs)
- Registry engine: [AiResearch 331 SER 605HP](https://openairdocs.org/engine/airesearch-331-ser-605hp) (registry code 01502, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Engines: turbo prop
- Damage: No damage
- Airport: Lemars

## Other investigations on N251M (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 MKC79FCG38](https://openairdocs.org/ntsb/MKC79FCG38), Apr 9, 1979: Mitsubishi MU-2B (N251M), Gardner, KS, substantial damage

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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