# NTSB FTW68A0017: Piper PA-25, N6135Z, Coweta, OK, August 11, 1967

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: August 11, 1967
- Place: Coweta, OK · COWETA, OK
- Location: 35.9664° N, 95.6606° W: Placed by OpenAirDocs: center of Coweta, OK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.9664&lon=-95.6606&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report March 21, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 115968
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW68A0017
- Page: https://openairdocs.org/ntsb/FTW68A0017

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-1044  67/8/11    COWETA,OKLA         PIPER PA-25         CR-  1  0  0  COMMERCIAL                COMMERCIAL, AGE 38, 4000
        TIME - 0745                    N6135Z              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 3000 IN
                                       DAMAGE-DESTROYED    OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: PULLUP FROM SWATH RUN
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           AIRFRAME - WINGS: WING ATTACHMENT FITTINGS,BOLTS
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           MISCELLANEOUS ACTS,CONDITIONS - POOR WELD
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: SUBSTANDARD QUALITY CONTROL
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - COTTON                                    TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          CRASH HELMET - AVAILABLE USED                            CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          SWATH RUN-HOW FLOWN - CROSSWIND
         FIRE AFTER IMPACT
        REMARKS- RT WING SPAR LUGS FAILED.IMPROPER WELD DURING ACFT ASSEMBLY.
```

## Aircraft

- Registration: [N6135Z](https://openairdocs.org/deregistered/N6135Z-1970-06-09), registration cancelled 1970-06-09, S/N 25-159 (OpenAirDocs)
- Reported make and model: PIPER PA-25
- Registry model: [Piper PA-25-150](https://openairdocs.org/model/piper-pa-25-150) (registry code 7102503) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: 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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