# NTSB MKC76DCQ59: Air Tractor AT-301, N4349S, Subletta, KS, June 10, 1976

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: June 10, 1976
- Place: Subletta, KS · SUBLETTA, KS
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report September 29, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 154704
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC76DCQ59
- Page: https://openairdocs.org/ntsb/MKC76DCQ59

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2354  76/6/10    SUBLETTA,KS         AIR TRACTOR AT-301  CR-  0  1  0  COMMERCIAL                COMMERCIAL, AGE 50, 11000
        TIME - 0900                    N4349S              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 50 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - SHERWOOD
        DEPARTURE POINT             INTENDED DESTINATION
          SUBLETTA,KS                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           COLLIDED WITH: DITCHES                                   LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
           AIRFRAME - LANDING GEAR: BRAKING SYSTEM (NORMAL SYSTEM)
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -    4                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  2930                SWATH RUN-HOW FLOWN - CROSSWIND
        REMARKS- PLT RPTD L WHEEL BRAKE LOCKED UP.
```

## Aircraft

- Registration: [N4349S](https://openairdocs.org/deregistered/N4349S-2013-09-10), registration cancelled 2013-09-10, S/N 3010029 (OpenAirDocs)
- Reported make and model: AIR TRACTOR AT-301
- Registry model: [Air Tractor AT-301](https://openairdocs.org/model/air-tractor-at-301) (registry code 0390103) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Sherwood

## 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 19760610017379A](https://openairdocs.org/incident/19760610017379A), Jun 10, 1976: Airtrc AT301, Subletta, KS, Substantial damage. Plt rptd l wheel brake locked up.

## Other investigations on N4349S (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 CHI94DTG02](https://openairdocs.org/ntsb/CHI94DTG02), Jun 29, 1994: Air Tractor AT301 (N4349S), Lawton, ND, substantial damage. Probable cause: The pilot's improper use of carburetor heat. The carburetor icing weather condition was a factor.

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.