NTSB investigations: Air Tractor AT-401, 2001
6 cases on aircraft the registry lists as Air Tractor AT-401. 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
| 1989 | 2 |
|---|---|
| 1990 | 7 |
| 1991 | 3 |
| 1992 | 2 |
| 1993 | 3 |
| 1994 | 4 |
| 1995 | 6 |
| 1996 | 6 |
| 1997 | 2 |
| 1998 | 8 |
| 1999 | 5 |
| 2000 | 4 |
| 2001 | 6 |
| 2002 | 1 |
| 2003 | 3 |
| 2004 | 2 |
| 2005 | 2 |
| 2006 | 2 |
| 2007 | 2 |
| 2008 | 3 |
| 2010 | 2 |
| 2011 | 1 |
| 2012 | 1 |
| 2013 | 2 |
| 2014 | 2 |
| 2015 | 2 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 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 year(c.\"eventDate\") = 2001
AND 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'))
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 year(c."eventDate") = 2001
AND 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'))
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 LAX02LA034Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401B · Las Vegas, NVthe failure of the AT-401 pilot to maintain clearance with the AT-402 airplane during landing. Contributing factors were the unreliable communication radio in the AT-401, the AT-401 pilot's continued flight with known communication radio problems, and the…NTSB ATL01LA099Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-401 · Batesville, MSThe loss of engine power for undetermined reasons. A factor was the lack of suitable terrain for an emergency landing.NTSB FTW01LA178Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Grand Coteau, LAthe loss of engine power while maneuvering, which resulted from a fractured #4 cylinder head at the exhaust valve rocker arm boss. A contributing factor was the lack of suitable terrain for the forced landing.NTSB CHI01IA246Incident · No injuriesIncident investigationFinal reportAir Tractor AT-401 · Kenesaw, NEThe propeller blade fatigue leading to its tip separating during an aerial application. Factors were no suitable terrain for an emergency landing, high vegetation, and soft terrain encountered during the emergency landing.NTSB CHI01LA195Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Ellinwood, KSThe pilot failed to see and avoid the guy wire during an aerial application flight. A factor associated with the accident was the guy wire.NTSB CHI01LA135Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Warsaw, ILthe rocker assembly failure during low level maneuvering. Factors were the soft and sandy terrain and the unsuitable terrain the pilot encountered during the forced landing.