# NTSB OAK67F0012: Stearman A75, N56772, Robbins, CA, April 19, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 19, 1966
- 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: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 9, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 171778
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK67F0012
- Page: https://openairdocs.org/ntsb/OAK67F0012

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1405  66/4/19    ROBBINS CALIF       STEARMAN A75        CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 0640                    N56772              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   AGE 55, 7365 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            97 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: AUTOMOBILE                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PERSONNEL - MISCELLANEOUS-PERSONNEL: GROUND SIGNALMAN
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  125                       KIND OF OPERATION - FERTILIZING (DUST)
          KIND OF CROP - RICE                                      TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - USED                                           CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - BELLY
        REMARKS- SIGNALMAN PERMITTED AUTO TO BE DRIVEN ONTO LANDING AREA AS AIRCRAFT WAS LANDING.
```

## Aircraft

- Registration: [N56772](https://openairdocs.org/aircraft/N56772), registered now, S/N 75-2451, built 1941 (OpenAirDocs)
- Reported make and model: STEARMAN 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 N56772 (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 DEN99LA129](https://openairdocs.org/ntsb/DEN99LA129), Jul 26, 1999: Boeing A-75-N1 (Stearman) (N56772), Tooele, UT, substantial damage. Probable cause: The failure of the right main landing gear tire's inner tube, and the subsequent inadvertent ground loop by the pilot.
- [NTSB LAX83LVD01](https://openairdocs.org/ntsb/LAX83LVD01), Oct 10, 1982: Boeing A75 (N56772), Ft. Bragg, CA, 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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