# NTSB NYC80FHD14: Harvard MK-4, N20425, Turnersville, NJ, May 10, 1980

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 10, 1980
- Place: Turnersville, NJ · TURNERSVILLE, NJ
- Location: 39.7664° N, 75.0620° W: Placed by OpenAirDocs: center of Turnersville, NJ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.7664&lon=-75.0620&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 25, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 130447
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC80FHD14
- Page: https://openairdocs.org/ntsb/NYC80FHD14

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2004  80/5/10    TURNERSVILLE,NJ     HARVARD MK-4        CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 47, 4150
        TIME - 1200                    N20425              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 69 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - WATSON LNDG STRIP
        DEPARTURE POINT             INTENDED DESTINATION
          PHILADELPHIA,PA             TURNERSVILLE,NJ
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: LEVEL OFF/TOUCHDOWN
           GEAR COLLAPSED                                           LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF BRAKES AND/OR FLIGHT CONTROLS
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
```

## Aircraft

- Registration: [N20425](https://openairdocs.org/deregistered/N20425-2012-10-16), registration cancelled 2012-10-16, S/N CCF-4-216, built 1952 (OpenAirDocs)
- Reported make and model: HARVARD MK-4
- Registry model: [North American HARVARD 4](https://openairdocs.org/model/north-american-harvard-4) (registry code 6400430) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Watson Lndg Strip

## 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 19800510017869A](https://openairdocs.org/incident/19800510017869A), May 10, 1980: Namer HARVARDMK4, Turnersville, NJ, Substantial damage. Pilot lost directional control during landing and ground-looped airplane.

## Other investigations on N20425 (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 LAX73FUG38](https://openairdocs.org/ntsb/LAX73FUG38), Feb 25, 1973: Harvard MK4 (N20425), Rubidoux, CA, 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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