# NTSB FTW66F0584: Piper PA-25, N7687Z, Okarche, OK, March 26, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 26, 1966
- Place: Okarche, OK · OKARCHE, OK
- Location: 35.7249° N, 97.9757° W: Placed by OpenAirDocs: center of Okarche, OK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.7249&lon=-97.9757&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report April 22, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 173155
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW66F0584
- Page: https://openairdocs.org/ntsb/FTW66F0584

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0537  66/3/26    OKARCHE OKLA        PIPER PA-25         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 49, 18000
        TIME - 0930                    N7687Z              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 600 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: FENCE,FENCEPOSTS                          IN FLIGHT: SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED CLEARANCE
         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 -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  1090                SWATH RUN-HOW FLOWN - CROSSWIND
         FIRE AFTER IMPACT
```

## Aircraft

- Registration: [N7687Z](https://openairdocs.org/deregistered/N7687Z-1983-11-04), registration cancelled 1983-11-04, S/N 25-3841 (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: Destroyed

## Other investigations on N7687Z (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 ATL82DA269](https://openairdocs.org/ntsb/ATL82DA269), Sep 11, 1982: Piper PA 25-235 (N7687Z), Ray City, GA, 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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