# NTSB LAX80DVA05: Piper PA-25, N9640P, Porterville, CA, November 28, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: November 28, 1979
- 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: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 5, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 132712
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX80DVA05
- Page: https://openairdocs.org/ntsb/LAX80DVA05

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3754  79/11/28 NR.PORTERVILLE,CA     PIPER PA-25         CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1030                    N9640P              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   AGE 37, 1984 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            800 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         PORTERVILLE,CA               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: EN ROUTE TO TREAT CROP
           COLLIDED WITH: CROP                                      LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
        FACTOR(S)
           TERRAIN - HIGH VEGETATION
           MISCELLANEOUS ACTS,CONDITIONS - JETTISONED LOAD
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  850                       KIND OF OPERATION - FERTILIZING (DUST)
          KIND OF CROP - FRUIT ORCHARDS                            TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT
        REMARKS- ACFT DMG DRG FORCED LNDG IN VINEYARD.
```

## Aircraft

- Registration: [N9640P](https://openairdocs.org/deregistered/N9640P-2009-09-22), registration cancelled 2009-09-22, S/N 25-7656020, built 1976 (OpenAirDocs)
- Reported make and model: PIPER PA-25
- Registry model: [Piper PA-25-235](https://openairdocs.org/model/piper-pa-25-235) (registry code 7102504) (OpenAirDocs)
- Registry engine: [Lycoming 0-540 series](https://openairdocs.org/engine/lycoming-0-540-series) (registry code 41532, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## 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 19791128032599A](https://openairdocs.org/incident/19791128032599A), Nov 28, 1979: Piper PA25, Porterville, CA, Substantial damage. Engine lost power on ag airplane enroute to spray area. Crashed in vineyard. Cause undetermined.

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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