# NTSB FTW79DPJ20: Piper PA-25, N8624L, Tonkawa, OK, May 29, 1979

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: May 29, 1979
- Place: Tonkawa, OK · TONKAWA, OK
- Location: 36.6705° N, 97.3150° W: Placed by OpenAirDocs: center of Tonkawa, OK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.6705&lon=-97.3150&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report July 10, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 136063
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW79DPJ20
- Page: https://openairdocs.org/ntsb/FTW79DPJ20

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0927  79/5/29    TONKAWA,OK          PIPER PA-25         CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 0940                    N8624L              PX-  0  0  0  AERIAL APPLICATION        AGE 31, 3450 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            918 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          TONKAWA,OK                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: PROCEDURE TURNAROUND
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
           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 - UNKNOWN/NOT REPORTED       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 TANK/HOPPER-LOCATION - FORWARD OF PILOT
          TERRAIN-TYPE -LEVEL,FLAT                                 ELEVATION-AREA BEING TREATED-FEET -  965
          SWATH RUN-HOW FLOWN - CROSSWIND                          PROCEDURE TURNAROUND - ENTRY TO PROCEDURE TURN
```

## Aircraft

- Registration: [N8624L](https://openairdocs.org/deregistered/N8624L-1987-12-16), registration cancelled 1987-12-16, S/N 255055 (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 19790529012019A](https://openairdocs.org/incident/19790529012019A), May 29, 1979: Piper PA25235, Tonkawa, OK, Substantial damage. Pilot stated engine stopped during spray operation. Flipped over on landing. Cause unknown.

## Other investigations on N8624L (2)

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 MKC85LA091](https://openairdocs.org/ntsb/MKC85LA091), Apr 28, 1985: Piper PA-25-235C (N8624L), Grenola, KS, destroyed
- [NTSB MKC83LA097](https://openairdocs.org/ntsb/MKC83LA097), Apr 29, 1983: Piper PA-25-235 (N8624L), Grenola, KS, 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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