# NTSB investigations: Air Tractor AT-401, AR

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 FTW99LA220](https://openairdocs.org/ntsb/FTW99LA220.md): Air Tractor AT-401 · Humphrey, AR · Accident · No injuries · Limited investigation · Final report · Aug 12, 1999 · N1031Q · Substantial damage
  > Fuel exhaustion as a result of the pilot's failure to refuel the airplane.
- [NTSB FTW96LA251](https://openairdocs.org/ntsb/FTW96LA251.md): Air Tractor AT-401 · Cash, AR · Accident · No injuries · Limited investigation · Final report · Jun 15, 1996 · N1004W · Substantial damage
  > The partial loss of engine power due to fuel contamination. A factor was the lack of suitable terrain available for the forced landing.
- [NTSB FTW95LA301](https://openairdocs.org/ntsb/FTW95LA301.md): Air Tractor AT-401 · Cash, AR · Accident · No injuries · Limited investigation · Final report · Jul 11, 1995 · N1004W · Substantial damage
  > Engine power loss due to partial failure of one magneto combined with total failure of the other magneto. A factor was the lack of suitable terrain for a forced landing.
- [NTSB FTW94LA306](https://openairdocs.org/ntsb/FTW94LA306.md): Air Tractor AT-401 · Mcgehee, AR · Accident · No injuries · Limited investigation · Final report · Sep 20, 1994 · N4549N · Substantial damage
  > The loss of engine power due to undetermined reasons. A factor was the unsuitable terrain.
- [NTSB FTW94LA256](https://openairdocs.org/ntsb/FTW94LA256.md): Air Tractor AT-401 · Mcgehee, AR · Accident · No injuries · Limited investigation · Final report · Aug 2, 1994 · N45297 · Substantial damage
  > Total loss of engine power as the engine seized due to a blower bearing failure. A factor was the lack of suitable terrain for the forced landing.
- [NTSB DEN93LA081](https://openairdocs.org/ntsb/DEN93LA081.md): Air Tractor AT-401 · Dermott, AR · Accident · No injuries · Limited investigation · Final report · Jul 15, 1993 · N1009T · Substantial damage
  > Power loss due to the total failure of the engine's master rod. Factors were an improper engine overhaul and the lack of suitable terrain for a forced landing.
- [NTSB FTW90DPG12](https://openairdocs.org/ntsb/FTW90DPG12.md): Air Tractor AT-401 · Jacksonville, AR · Accident · No injuries · Final report · Aug 27, 1990 · N7318C · Substantial damage
  > A loss of engine power due to unknown causes. A factor was the unsuitable terrain.
- [NTSB FTW90DPG11](https://openairdocs.org/ntsb/FTW90DPG11.md): Air Tractor AT401 · Altheimer, AR · Accident · No injuries · Final report · Aug 23, 1990 · N10192 · Substantial damage
  > The pilot's failure to align the airplane with the runway during landing.
- [NTSB MKC89LA190](https://openairdocs.org/ntsb/MKC89LA190.md): Air Tractor AT-401 · Wabbaseka, AR · Accident · No injuries · Limited investigation · Final report · Aug 26, 1989 · N10103 · Substantial damage
  > Improper planning/decision by the pilot which resulted in his failure to maintain clearance from the tall vegetation (grass). The tall vegetation & high density altitude were considered to be contributing factors.

## 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."eventStateOrRegion" = 'AR' AND c."eventCountry" = 'USA'
  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
```

This list as a web page: https://openairdocs.org/ntsb?model=0390204&state=AR

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