# NTSB UNK64X4122: Boeing A75N1, N49957, Kingsburg, CA, September 24, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 24, 1964
- Place: Kingsburg, CA · KINGSBURG, CA
- Location: 36.5252° N, 119.5664° W: Placed by OpenAirDocs: center of Kingsburg, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.5252&lon=-119.5664&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 13, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 181266
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X4122
- Page: https://openairdocs.org/ntsb/UNK64X4122

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3001  64/9/24    KINGSBURG CALIF     BOEING A75N1        CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 45, 5800
        TIME - 1130                    N49957              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 4000 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: OBJECT                                    TAKEOFF: INITIAL CLIMB
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 3800                       KIND OF OPERATION - DEFOLIATION (LIQUID)
          KIND OF CROP - COTTON                                    TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - USED                                           CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  ELEVATION-AREA BEING TREATED-FEET -  350
        REMARKS- COLLIDED WITH STANDPIPE.
```

## Aircraft

- Registration: [N49957](https://openairdocs.org/deregistered/N49957-2012-08-09), registration cancelled 2012-08-09, S/N 75-2982, built 1942 (OpenAirDocs)
- Reported make and model: BOEING A75N1
- Registry model: [Boeing PT-17](https://openairdocs.org/model/boeing-pt-17) (registry code 1380136) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, 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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