# NTSB MKC73FER25: Piper PA-28, N4486J, Duluth, MN, October 7, 1972

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: October 7, 1972
- Place: Duluth, MN · DULUTH, MN
- Location: 46.7833° N, 92.1066° W: Placed by OpenAirDocs: center of Duluth, MN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=46.7833&lon=-92.1066&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 7, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 168972
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC73FER25
- Page: https://openairdocs.org/ntsb/MKC73FER25

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3255   72/10/7   DULUTH,MINN         PIPER PA-28         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1030                    N4486J              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  AGE 39, 1469 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            500 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - SKY HARBOR
        DEPARTURE POINT             INTENDED DESTINATION
          CABLE,WIS                   DULUTH,MINN
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: BRAKING SYSTEM (NORMAL SYSTEM)
           MISCELLANEOUS ACTS,CONDITIONS - INTENTIONAL GROUND-WATER-LOOP-SWERVE
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: SOFT SHOULDERS
        REMARKS- R WHEEL BRAKE LINING WORN.BRAKE CYL PISTON AND SEAL PUSHED BEYOND HOUSING.
```

## Aircraft

- Registration: [N4486J](https://openairdocs.org/aircraft/N4486J), registered now, S/N 28-22904, built 1967 (OpenAirDocs)
- Reported make and model: PIPER PA-28
- Registry model: [Piper PA-28-140](https://openairdocs.org/model/piper-pa-28-140) (registry code 7102802) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Sky Harbor

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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