# NTSB OAK74DVA47: Boeing B75, N56059, Piedra, CA, March 9, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 9, 1974
- Place: Piedra, CA · PIEDRA, CA
- Location: 36.8102° N, 119.3821° W: Placed by OpenAirDocs: center of Piedra, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.8102&lon=-119.3821&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report April 16, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 186626
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK74DVA47
- Page: https://openairdocs.org/ntsb/OAK74DVA47

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0451   74/3/9  NR.PIEDRA,CALIF       BOEING B75          CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1230                    N56059              PX-  0  0  0  AERIAL APPLICATION        AGE 30, 3101 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            300 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - GIFFEN AIRSTRIP
        DEPARTURE POINT             INTENDED DESTINATION
         PIEDRA,CALIF                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              IN FLIGHT: PROCEDURE TURNAROUND
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - JETTISONED LOAD
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 2800                       KIND OF OPERATION - FERTILIZING (DUST)
          KIND OF CROP - GRAPES                                    TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - USED                                           CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -MOUNTAINOUS
          ELEVATION-AREA BEING TREATED-FEET -  500                 SWATH RUN-HOW FLOWN - UPWIND
          PROCEDURE TURNAROUND - SECOND 1/3 TURN
```

## Aircraft

- Registration: N56059 (not matched to a registry record)
- Reported make and model: BOEING B75
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Giffen Airstrip

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19740309004819A](https://openairdocs.org/incident/19740309004819A), Mar 9, 1974: Boeing A75N1, Piedra, 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
