# NTSB investigations: Air Tractor AT-301: Loss of engine power (total)

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB CEN25LA306](https://openairdocs.org/ntsb/CEN25LA306.md): Air Tractor AT-301 · Davenport, ND · Accident · Serious injuries · Class 3 · Limited · Preliminary report · Aug 7, 2025 · N23069 · Substantial damage
  > On August 6, 2025, at 2035 central daylight time, an Air Tractor Inc AT-301 airplane, N23069, was substantially damaged when it was involved in an accident near Davenport, North Dakota. The commercial pilot sustained serious injuries. The airplane was…
- [NTSB WPR22LA293](https://openairdocs.org/ntsb/WPR22LA293.md): Air Tractor AT-301 · Circle, MT · Accident · No injuries · Class 4 · Limited · Final report · Aug 7, 2022 · N36542 · Substantial damage
  > The loss of engine power due to carburetor ice. Contributing to the accident was the pilot’s failure to use carburetor heat.
- [NTSB CEN18LA356](https://openairdocs.org/ntsb/CEN18LA356.md): Air Tractor AT 301 · Partridge, KS · Accident · No injuries · Limited investigation · Final report · Aug 29, 2018 · N3164K · Substantial damage
  > The total loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB GAA18CA371](https://openairdocs.org/ntsb/GAA18CA371.md): Air Tractor AT 301 · Hutchinson, MN · Accident · No injuries · Data collection · Final report · Jun 20, 2018 · N3169D · Substantial damage
  > The pilot’s improper preflight fuel planning, which resulted in fuel exhaustion and the subsequent total loss of engine power.
- [NTSB WPR15LA023](https://openairdocs.org/ntsb/WPR15LA023.md): Air Tractor AT 301 · Basin City, WA · Accident · No injuries · Limited investigation · Final report · Oct 27, 2014 · N8878S · Substantial damage
  > Maintenance personnel’s and the airplane owner’s failure to inspect the engine for cracks in the cylinders as required by an airworthiness directive, which resulted in the loss of engine power during low-altitude maneuvering flight.
- [NTSB CEN14LA229](https://openairdocs.org/ntsb/CEN14LA229.md): Air Tractor AT 301 · Hessmer, LA · Accident · No injuries · Limited investigation · Final report · May 5, 2014 · N7309Z · Substantial damage
  > A partial loss of engine power for reasons that could not be determined because a full examination of the engine could not be performed.
- [NTSB WPR13LA248](https://openairdocs.org/ntsb/WPR13LA248.md): Air Tractor AT-301 · Wheatland, WY · Accident · No injuries · Limited investigation · Final report · May 24, 2013 · N23647 · Substantial damage
  > A loss of engine power due to fuel exhaustion and the pilot's inadequate fuel planning.
- [NTSB CEN11FA562](https://openairdocs.org/ntsb/CEN11FA562.md): Air Tractor AT-301 · Nekoosa, WI · Accident · No injuries · Field investigation · Final report · Aug 4, 2011 · N4345S · Substantial damage
  > A total loss of engine power during initial climb for undetermined reasons.
- [NTSB WPR10CA332](https://openairdocs.org/ntsb/WPR10CA332.md): Air Tractor AT-301 · Garfield, WA · Accident · No injuries · Data collection · Final report · Jul 6, 2010 · N8878S · Substantial damage
  > A loss of engine power due to fuel exhaustion.
- [NTSB CEN09LA602](https://openairdocs.org/ntsb/CEN09LA602.md): Air Tractor AT-301A · New Miner, WI · Accident · Minor injuries · Limited investigation · Final report · Aug 22, 2009 · N3651R · Substantial damage
  > A total loss of engine power due to the fatigue failure of the engine torsion shaft. Contributing to the accident was the chrome plating of the shaft by an undetermined maintenance/overhaul facility.
- [NTSB CEN09CA535](https://openairdocs.org/ntsb/CEN09CA535.md): Air Tractor AT-301 · Leland, IL · Accident · No injuries · Data collection · Final report · Aug 17, 2009 · N73102 · Substantial damage
  > A total loss of engine power in flight due to a loss of engine oil as a result of the separation of the propeller hub components for undetermined reasons.
- [NTSB WPR09LA374](https://openairdocs.org/ntsb/WPR09LA374.md): Air Tractor AT-301 · Firebaugh, CA · Accident · No injuries · Limited investigation · Final report · Jul 29, 2009 · N23189 · Substantial damage
  > A total loss of engine power due to fuel exhaustion that was due to the failure of company ground personnel to refuel the airplane. Contributing to the accident was unsuitable terrain for a forced landing.
- [NTSB CEN09LA239](https://openairdocs.org/ntsb/CEN09LA239.md): Air Tractor AT-301 · Corning, AR · Accident · No injuries · Limited investigation · Final report · Apr 7, 2009 · N36597 · Substantial damage
  > A loss of engine power due to the failure of the number one engine cylinder for undetermined reasons.
- [NTSB CHI08CA266](https://openairdocs.org/ntsb/CHI08CA266.md): Air Tractor AT-301A · Jasper, MN · Accident · No injuries · Data collection · Final report · Aug 25, 2008 · N3654T · Substantial damage
  > The pilot's failure to assure the primer control was locked during the aircraft preflight. Factors associated with the accident were the low altitude at which the airplane was operating, the fence, the roadway, and the ditch.
- [NTSB DFW08CA216](https://openairdocs.org/ntsb/DFW08CA216.md): Air Tractor AT-301 · Wisner, LA · Accident · No injuries · Data collection · Final report · Aug 22, 2008 · N2391Z · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB CHI08CA251](https://openairdocs.org/ntsb/CHI08CA251.md): Air Tractor AT-301B · Monticello, IA · Accident · Minor injuries · Data collection · Final report · Aug 13, 2008 · N3161D · Substantial damage
  > Poor preflight planning in that the pilot failed to assure an adequate fuel supply was on board for the flight which resulted in fuel exhaustion. Factors associated with the accident were the low altitude of the airplane when the loss of power occurred and…
- [NTSB DFW08CA086](https://openairdocs.org/ntsb/DFW08CA086.md): Air Tractor At-301 · Plains, KS · Accident · No injuries · Data collection · Final report · Mar 26, 2008 · N4427S · Substantial damage
  > A loss of engine power as a result of a blocked carburetor. A factor was the lack of suitable terrain for the forced landing.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0390103', '0390105')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '341' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/341/sequence?model=0390103

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