# NTSB FTW79DPM24: Air Tractor 301, N4430S, Bartlesville, OK, July 2, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 2, 1978
- Place: Bartlesville, OK · BARTLESVILLE, OK
- Location: 36.7379° N, 95.9485° W: Placed by OpenAirDocs: center of Bartlesville, OK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.7379&lon=-95.9485&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 13, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 140359
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW79DPM24
- Page: https://openairdocs.org/ntsb/FTW79DPM24

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3934   78/7/2  NR.BARTLESVILLE,OK    AIR TRACTOR 301     CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 59, 20000
        TIME - 0900                    N4430S              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 700 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - ROCKING CHAIR
        DEPARTURE POINT             INTENDED DESTINATION
         BARTLESVILLE,OK              LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           COLLIDED WITH: TREES                                     TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           POWERPLANT - IGNITION SYSTEM: MAGNETOS
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           TERRAIN - HIGH OBSTRUCTIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - DEFOLIATION (LIQUID)
          KIND OF CROP - OTHER                                     TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          CRASH BAR - INSTALLED                                    TANK/HOPPER-LOCATION - FORWARD OF PILOT
          ELEVATION-AREA BEING TREATED-FEET -  850
        REMARKS- MAG LOST BEARINGS SPRAYING BRUSH.BENDIX SB9RN,S/N 175083.
```

## Aircraft

- Registration: [N4430S](https://openairdocs.org/deregistered/N4430S-2018-01-23), registration cancelled 2018-01-23, S/N 301-0090, built 1977 (OpenAirDocs)
- Reported make and model: AIR TRACTOR 301
- Registry model: [Air Tractor AT-301](https://openairdocs.org/model/air-tractor-at-301) (registry code 0390103) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Rocking Chair

## 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 19780702041159A](https://openairdocs.org/incident/19780702041159A), Jul 2, 1978: Airtrc AT301, Bartlesville, OK, Substantial damage. Mag lost bearings spraying brush. Bendix SB9RN,s/n 175083.

## Other investigations on N4430S (1)

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 FTW92LA118](https://openairdocs.org/ntsb/FTW92LA118), Apr 22, 1992: Air Tractor AT-301 (N4430S), Almyra, AR, substantial damage. Probable cause: THE PILOT'S IMPROPER JUDGEMENT OF THE DESCENT RATE AND HIS INADEQUATE PULL UP AT THE BOTTOM.

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.