# NTSB OAK65F0013: Boeing PT-13, N56423, Legrand, CA, March 15, 1965

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: March 15, 1965
- Place: Legrand, CA · LEGRAND, CA
- Location: 37.2288° N, 120.2540° W: Placed by OpenAirDocs: center of Le Grand, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.2288&lon=-120.2540&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report April 19, 1965
- Report: Brief approved by the director
- NTSB case key (mKey): 179423
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK65F0013
- Page: https://openairdocs.org/ntsb/OAK65F0013

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0398  65/3/15    LEGRAND CALIF       BOEING PT-13        CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 51, 12000
        TIME - 1030                    N56423              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 8000 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: PROCEDURE TURNAROUND
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: CRANKSHAFT
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 9999                       KIND OF OPERATION - DUSTING CROPS
          KIND OF CROP - PASTURE                                   TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - USED                                           CRASH HELMET - NOT AVAILABLE
          COCKPIT CRASHPAD - INSTALLED                             TANK/HOPPER-LOCATION - FORWARD OF PILOT
          TERRAIN-TYPE -LEVEL,FLAT                                 ELEVATION-AREA BEING TREATED-FEET -  150
          SWATH RUN-HOW FLOWN - WIND CALM                          PROCEDURE TURNAROUND - SECOND 1/3 TURN
         FIRE AFTER IMPACT
        REMARKS- CRANKSHAFT FAILED AT THREAD AREA OF THRUST BEARING NUT, PROP SEPERATED FROM ENGINE.
```

## Aircraft

- Registration: N56423 (not matched to a registry record)
- Reported make and model: BOEING PT-13
- 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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