# NTSB FTW70DPJ06: Piper PA-25, N4879Y, Okarche, OK, March 5, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 5, 1970
- 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: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 27, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 140945
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW70DPJ06
- Page: https://openairdocs.org/ntsb/FTW70DPJ06

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0549   70/3/5    OKARCHE,OKLA        PIPER PA-25         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 28, 1450
        TIME - 1845                    N4879Y              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 585 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          OKARCHE,OKLA                OKARCHE,OKLA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           COLLIDED WITH: FENCE,FENCEPOSTS                          LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF BRAKES AND/OR FLIGHT CONTROLS
        FACTOR(S)
           AIRFRAME - LANDING GEAR: BRAKING SYSTEM (NORMAL SYSTEM)
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  800                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          GLOVES - USED                                            GOGGLES - NOT USED
          CRASH HELMET - AVAILABLE USED                            COCKPIT CRASHPAD - INSTALLED
          CRASH BAR - INSTALLED                                    TANK/HOPPER-LOCATION - FORWARD OF PILOT
        REMARKS- LDG ON DIRT ROAD.R BRAKE MALFUNCTIONED.
```

## Aircraft

- Registration: [N4879Y](https://openairdocs.org/deregistered/N4879Y-1975-06-09), registration cancelled 1975-06-09, S/N 25-4683 (OpenAirDocs)
- Reported make and model: PIPER PA-25
- Registry model: [Piper PA-25](https://openairdocs.org/model/piper-pa-25) (registry code 7102502) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N4879Y (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 FTW75FPG48](https://openairdocs.org/ntsb/FTW75FPG48), Apr 28, 1975: Piper PA-25 (N4879Y), Coy, AR, destroyed

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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