# NTSB OAK74DVA13: Boeing A75-N1, N7740C, Porterville, CA, August 18, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 18, 1973
- Place: Porterville, CA · PORTERVILLE, CA
- Location: 36.0635° N, 119.0336° W: Placed by OpenAirDocs: center of Porterville, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.0635&lon=-119.0336&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 12, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 189267
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK74DVA13
- Page: https://openairdocs.org/ntsb/OAK74DVA13

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2415  73/8/18    PORTERVILLE,CALIF   BOEING A75-N1       CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1315                    N7740C              PX-  0  0  0  AERIAL APPLICATION        AGE UNK/NR, 1146 TOTAL
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            HOURS, 20 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - PORTERVILLE
        DEPARTURE POINT             INTENDED DESTINATION
          PORTERVILLE,CALIF           LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - DOWNWIND
         SPECIAL DATA
          KIND OF OPERATION - FERRY
```

## Aircraft

- Registration: [N7740C](https://openairdocs.org/aircraft/N7740C), registered now, S/N 75-3250, built 1942 (OpenAirDocs)
- Reported make and model: BOEING A75-N1
- 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
- Airport: Porterville

## 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 19730818025839A](https://openairdocs.org/incident/19730818025839A), Aug 18, 1973: Boeing A75N1, Porterville, 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 OAK78DVA22](https://openairdocs.org/ntsb/OAK78DVA22), Feb 3, 1978: Boeing A75 (N7740C), Farmington, CA, destroyed
- [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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