# NTSB CHI74DEM02: Piper PA-25, N7317Z, Bay City, MI, July 2, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 2, 1973
- Place: Bay City, MI · BAY CITY, MI
- Location: 43.5901° N, 83.8884° W: Placed by OpenAirDocs: center of Bay City, MI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.5901&lon=-83.8884&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 9, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 189790
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI74DEM02
- Page: https://openairdocs.org/ntsb/CHI74DEM02

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1602   73/7/2    BAY CITY,MICH       PIPER PA-25         CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 30, 2800
        TIME - 1345                    N7317Z              PX-  0  0  0  FERRY                     TOTAL HOURS, 2059 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          BAY CITY,MICH               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: PISTON,PISTON RINGS
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           TERRAIN - ROUGH/UNEVEN
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- ACFT ON FERRY FLT.LNDD IN A POTATOE FLD.NR 3 PISTON FAILED IN THE LWR OIL WIPER RING GROOVE.
```

## Aircraft

- Registration: [N7317Z](https://openairdocs.org/deregistered/N7317Z-1981-10-14), registration cancelled 1981-10-14, S/N 25-3263 (OpenAirDocs)
- Reported make and model: PIPER PA-25
- Registry model: [Piper PA-25-235](https://openairdocs.org/model/piper-pa-25-235) (registry code 7102504) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## 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 19730702019749A](https://openairdocs.org/incident/19730702019749A), Jul 2, 1973: Piper PA25235, Bay City, MI, Substantial damage. Acft on ferry flt. Lndd in a potatoe fld. Nr 3 piston failed in the lwr oil wiper ring groove.

## Other investigations on N7317Z (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 CHI78FET26](https://openairdocs.org/ntsb/CHI78FET26), Jul 7, 1978: Piper PA-25 (N7317Z), Logansport, IN, destroyed

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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