NTSB investigations: Air Tractor AT-401
10 cases on aircraft the registry lists as Air Tractor AT-401, where the sequence of events included Collision with terr/obj (non-CFIT). Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.
Cases per year
| 2008 | 3 |
|---|---|
| 2010 | 2 |
| 2011 | 1 |
| 2012 | 1 |
| 2013 | 1 |
| 2015 | 1 |
| 2021 | 1 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "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 ('0390204', '0390209')
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\" = '470' 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"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
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 ('0390204', '0390209')
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" = '470' 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" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB CEN21LA319Accident · No injuriesClass 3 · LimitedFinal reportAir Tractor AT-401 · Carroll, IAThe wear-related failure of the airframe fuel boost pump, which resulted in fuel starvation and a loss of engine power.NTSB GAA15CA117Accident · No injuriesData collectionFinal reportAir Tractor AT 401 · Wall, SDThe pilot's failure to adjust the airplane's useful load to compensate for the high temperature, which resulted in an insufficient climb rate to clear surrounding terrain, and a runway excursion.NTSB CEN13LA152Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Victoria, TXThe mechanical failure of the engine power section, which resulted in a loss of engine power.NTSB CEN12LA344Accident · No injuriesLimited investigationFinal reportAir Tractor AT401 · Kenmare, NDThe pilot's failure to maintain directional control during an aborted takeoff.NTSB WPR11LA386Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Hardin, MTThe loss of engine power during takeoff due to the fatigue failure of the turbine wheel blades, which resulted from inadequate maintenance and inspections.NTSB CEN10LA503Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Castroville, TXA loss of engine power due to the failure of the torque sensor bearing.NTSB CEN10LA420Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Toulin, ILA partial loss of engine power as a result of a cracked cylinder and the reduced visibility due to the oil-covered windshield.NTSB CHI08CA213Accident · No injuriesData collectionFinal reportAir Tractor AT-401 · Ida Grove, IAA failure of the turbocharger blower which resulted in the partial loss of power. Factors associated with the accident were the low altitude of the airplane and the embankment.NTSB CHI08CA220Accident · Minor injuriesData collectionFinal reportAir Tractor AT-401 · Lake View, IAThe pilot not obtaining/maintaining altitude/clearance from the power line while performing an aerial application maneuver.NTSB DFW08CA146Accident · No injuriesData collectionFinal reportAir Tractor 401-0860 · Mumford, TXA total loss of engine power for undetermined reasons.