# NTSB UNK64X3241: Boeing A75, N68406, Dos Palos, CA, August 6, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 6, 1964
- Place: Dos Palos, CA · DOS PALOS, CA
- Location: 36.9854° N, 120.6338° W: Placed by OpenAirDocs: center of Dos Palos, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.9854&lon=-120.6338&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 21, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 182335
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X3241
- Page: https://openairdocs.org/ntsb/UNK64X3241

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2371   64/8/6    DOS PALOS CALIF     BOEING A75          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 28, 1200
        TIME - 0530                    N68406              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 800 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: CROP                                      IN FLIGHT: STARTING SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED ALTITUDE AND CLEARANCE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  700                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - COTTON                                    TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - UNKNOWN/NOT REPORTED              TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  126                 SWATH RUN-HOW FLOWN - WIND CALM
```

## Aircraft

- Registration: [N68406](https://openairdocs.org/deregistered/N68406-2013-10-25), registration cancelled 2013-10-25, S/N 75-7648, built 1943 (OpenAirDocs)
- Reported make and model: BOEING A75
- Registry model: [Boeing A75N1(PT17)](https://openairdocs.org/model/boeing-a75n1-pt17) (registry code 1380134) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: 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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