# NTSB OAK70D0023: Boeing A75, N66923, Robbins, CA, April 16, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 16, 1969
- Place: Robbins, CA · ROBBINS, CA
- Location: 38.8669° N, 121.7071° W: Placed by OpenAirDocs: center of Robbins, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.8669&lon=-121.7071&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 18, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 184982
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK70D0023
- Page: https://openairdocs.org/ntsb/OAK70D0023

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1857  69/4/16    ROBBINS,CALIF       BOEING A75          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 49, 5000
        TIME - 1320                    N66923              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 2000 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL                                                    IN FLIGHT: PROCEDURE TURNAROUND
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - FERTILIZING (DUST)
          KIND OF CROP - RICE                                      TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC
          GOGGLES - 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 -  20                  SWATH RUN-HOW FLOWN - UPWIND
          PROCEDURE TURNAROUND - THIRD 1/3 TURN
```

## Aircraft

- Registration: [N66923](https://openairdocs.org/aircraft/N66923), registered now, S/N 75-2249, built 1941 (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 R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N66923 (3)

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 OAK74DVG46](https://openairdocs.org/ntsb/OAK74DVG46), Apr 17, 1974: Boeing A75 (N66923), Knights Ldg, CA, substantial damage
- [NTSB OAK71FVG67](https://openairdocs.org/ntsb/OAK71FVG67), Apr 15, 1971: Boeing A75N1 (N66923), Robbins, CA, substantial damage
- [NTSB UNK64X2783](https://openairdocs.org/ntsb/UNK64X2783), Jul 12, 1964: Boeing A75N1 (N66923), Woodland, CA, 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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