# NTSB MKC71FCD56: Piper PA-32, N4139W, Grimes, IA, February 10, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 10, 1971
- Place: Grimes, IA · GRIMES, IA
- Location: 41.6777° N, 93.8022° W: Placed by OpenAirDocs: center of Grimes, IA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.6777&lon=-93.8022&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 6 uninjured
- Status: Completed, report March 14, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 160360
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC71FCD56
- Page: https://openairdocs.org/ntsb/MKC71FCD56

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2830  71/2/10    GRIMES,IOWA         PIPER PA-32         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 37, 579
        TIME - 2010                    N4139W              PX-  0  0  5  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 12 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - DODGE
        DEPARTURE POINT             INTENDED DESTINATION
          LINCOLN,NEBR                DES MOINES,IOWA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: SNOWBANK                                  LANDING: LEVEL OFF/TOUCHDOWN
           GEAR COLLAPSED                                           LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PERSONNEL - AIRPORT SUPERVISORY PERSONNEL: IMPROPER/INADEQUATE SNOW REMOVAL
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: OTHER
        FACTOR(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           MISCELLANEOUS ACTS,CONDITIONS - ELECTRICAL FAILURE
           PILOT IN COMMAND - INADVERTENTLY RETRACTED GEAR
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- ALTERNATOR BELT LOOSE,DEPLETED BATT.LND LTS INOP.LND TO L OF RWY IN SNOW.BOUNDARY LTS OUTSIDE SNOW
```

## Aircraft

- Registration: [N4139W](https://openairdocs.org/deregistered/N4139W-1982-03-26), registration cancelled 1982-03-26, S/N 32-40207, built 1967 (OpenAirDocs)
- Reported make and model: PIPER PA-32
- Registry model: [Piper PA-32-300](https://openairdocs.org/model/piper-pa-32-300) (registry code 7103212) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Dodge

## Other investigations on N4139W (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 MKC72DCD47](https://openairdocs.org/ntsb/MKC72DCD47), Nov 17, 1971: Piper PA-32 (N4139W), Dubuque, IA, 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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