# NTSB MKC76FER20: Piper PA-25, N6439Z, Hutchinson, MN, August 15, 1975

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: August 15, 1975
- Place: Hutchinson, MN · HUTCHINSON, MN
- Location: 44.8854° N, 94.3769° W: Placed by OpenAirDocs: center of Hutchinson, MN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.8854&lon=-94.3769&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report November 10, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 150004
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC76FER20
- Page: https://openairdocs.org/ntsb/MKC76FER20

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2917  75/8/15    HUTCHINSON,MN       PIPER PA-25         CR-  0  1  0  MISCELLANEOUS             COMMERCIAL, AGE 28, 1427
        TIME - 1600                    N6439Z              PX-  0  0  0  TEST                      TOTAL HOURS, 108 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - HUTCHINSON
        DEPARTURE POINT             INTENDED DESTINATION
          HUTCHINSON,MN               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL                                                    LANDING: TRAFFIC PATTERN-CIRCLING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        REMARKS- TESTING NEW SHOCKCORDS BY MAKING BOUNCE LDGS.STEEP TURN AT END OF RWY.
```

## Aircraft

- Registration: [N6439Z](https://openairdocs.org/deregistered/N6439Z-1975-11-07), registration cancelled 1975-11-07, S/N 25-597 (OpenAirDocs)
- Reported make and model: PIPER PA-25
- Registry model: [Piper PA-25-150](https://openairdocs.org/model/piper-pa-25-150) (registry code 7102503) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Hutchinson

## 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 19750815030829A](https://openairdocs.org/incident/19750815030829A), Aug 15, 1975: Piper PA25, Hutchinson, MN, Destroyed. Testing new shockcords by making bounce ldgs. Steep turn at end of rwy.

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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