# NTSB OAK78DVA22: Boeing A75, N7740C, Farmington, CA, February 3, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 3, 1978
- Place: Farmington, CA · FARMINGTON, CA
- Location: 37.9299° N, 121.0044° W: Placed by OpenAirDocs: center of Farmington, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.9299&lon=-121.0044&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 28, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 143688
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK78DVA22
- Page: https://openairdocs.org/ntsb/OAK78DVA22

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0199   78/2/3  NR.FARMINGTON,CA      BOEING A75          CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1030                    N7740C              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   AGE 26, 1700 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            100 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - ORVIS RANCH
        DEPARTURE POINT             INTENDED DESTINATION
         FARMINGTON,CA                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: RUN
           COLLIDED WITH: FENCE,FENCEPOSTS                          TAKEOFF: OTHER
        PROBABLE CAUSE(S)
           POWERPLANT - FUEL SYSTEM: TANKS
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - RAN OFF END OF RUNWAY
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 1700                       KIND OF OPERATION - FERTILIZING (DUST)
          TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC            PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED
          GLOVES - NOT USED                                        GOGGLES - USED
          CRASH HELMET - AVAILABLE USED                            COCKPIT CRASHPAD - NOT INSTALLED
          CRASH BAR - NOT INSTALLED                                TANK/HOPPER-LOCATION - FORWARD OF PILOT
```

## Aircraft

- Registration: [N7740C](https://openairdocs.org/aircraft/N7740C), registered now, S/N 75-3250, built 1942 (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: Destroyed
- Airport: Orvis Ranch

## 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 19780203002499A](https://openairdocs.org/incident/19780203002499A), Feb 3, 1978: Boeing N2S3, Farmington, CA, Substantial damage

## Other investigations on N7740C (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 OAK74DVA13](https://openairdocs.org/ntsb/OAK74DVA13), Aug 18, 1973: Boeing A75-N1 (N7740C), Porterville, CA, substantial damage
- [NTSB LAX71DVA43](https://openairdocs.org/ntsb/LAX71DVA43), Dec 4, 1970: Boeing A75N1 (N7740C), Terra Bella, 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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