# NTSB FTW72DQG08: Piper PA-25, N6440Z, Tulia, TX, July 26, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 26, 1971
- Place: Tulia, TX · TULIA, TX
- Location: 34.5379° N, 101.7744° W: Placed by OpenAirDocs: center of Tulia, TX, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.5379&lon=-101.7744&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 14, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 162993
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW72DQG08
- Page: https://openairdocs.org/ntsb/FTW72DQG08

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2784  71/7/26    TULIA,TEX           PIPER PA-25         CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 2000                    N6440Z              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   AGE 24, 2234 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            802 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          TULIA,TEX                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAKEOFF: ABORTED
           GEAR COLLAPSED                                           TAKEOFF: ABORTED
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - SELECTED UNSUITABLE TERRAIN
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
        FACTOR(S)
           TERRAIN - WET,SOFT GROUND
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 1850                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  3500                SWATH RUN-HOW FLOWN - CROSSWIND
        REMARKS- LNDD ON TURN ROW TO CLEAN NOZZLES.MAIN GR GOT INTO SOFT DIRT,ABORTED.
```

## Aircraft

- Registration: [N6440Z](https://openairdocs.org/deregistered/N6440Z-2013-04-29), registration cancelled 2013-04-29, S/N 25-599, built 1961 (OpenAirDocs)
- Reported make and model: PIPER PA-25
- Registry model: [Piper PA-25](https://openairdocs.org/model/piper-pa-25) (registry code 7102502) (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 N6440Z (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 CHI94FA263](https://openairdocs.org/ntsb/CHI94FA263), Aug 2, 1994: Piper PA-25 (N6440Z), Decatur, NE, destroyed, 2 fatal. Probable cause: LOSS OF ENGINE POWER FOR AN UNDETERMINED REASON, AND FAILURE OF THE PILOT TO MAINTAIN ADEQUATE AIRSPEED, WHICH RESULTED IN AN INADVERTENT STALL.
- [NTSB FTW67D0552](https://openairdocs.org/ntsb/FTW67D0552), Apr 5, 1967: Piper PA-25 (N6440Z), Spearman, TX, 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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