# NTSB CHI73FEP10: Piper PA-25, N4598Y, Suring, WI, September 12, 1972

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: September 12, 1972
- Place: Suring, WI · SURING, WI
- Location: 45.0007° N, 88.3693° W: Placed by OpenAirDocs: center of Suring, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.0007&lon=-88.3693&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report March 20, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 168316
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI73FEP10
- Page: https://openairdocs.org/ntsb/CHI73FEP10

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3503  72/9/12    SURING,WIS          PIPER PA-25         CR-  0  1  0  COMMERCIAL                COMMERCIAL, AGE 32, 630
        TIME - 1530                    N4598Y              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 280 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          ANTIGO,WIS                  SURING,WIS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: STARTING SWATH RUN
           NOSE OVER/DOWN                                           LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           POWERPLANT - IGNITION SYSTEM: MAGNETOS
           POWERPLANT - ENGINE CONTROLS: MIXTURE CONTROL ASSEMBLIES
           TERRAIN - ROUGH/UNEVEN
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  280                       KIND OF OPERATION - DEFOLIATION (LIQUID)
          KIND OF CROP - POTATOES                                  TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - USED                                           CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  860                 SWATH RUN-HOW FLOWN - CROSSWIND
        REMARKS- LEFT MAG DEFECTIVE.MIXTURE CONTROL LEVER HAD STRIPPED TEETH.
```

## Aircraft

- Registration: [N4598Y](https://openairdocs.org/deregistered/N4598Y-2012-08-20), registration cancelled 2012-08-20, S/N 25-4290, built 1967 (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)
- Registry engine: [Lycoming 0-540 series](https://openairdocs.org/engine/lycoming-0-540-series) (registry code 41532, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N4598Y (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 CHI70D0095](https://openairdocs.org/ntsb/CHI70D0095), Jul 8, 1969: Piper PA-25 (N4598Y), Suring, WI, 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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