# NTSB investigations: Air Tractor AT-401: In flight collision with terrain/water

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 LAX08CA034](https://openairdocs.org/ntsb/LAX08CA034.md): Air Tractor AT-401 · Soledad, CA · Accident · Serious injuries · Data collection · Final report · Dec 6, 2007 · N6024M · Destroyed
  > The pilot's failure to maintain an adequate clearance from mountainous terrain while maneuvering during an aerial application mission. Contributing to the accident was the pilot's diverted attention inside the cockpit.
- [NTSB FTW00LA212](https://openairdocs.org/ntsb/FTW00LA212.md): Air Tractor AT-401 · Panhandle, TX · Accident · 1 fatal · Limited investigation · Final report · Jul 18, 2000 · N6055W · Destroyed
  > The pilot's failure to maintain airspeed, which resulted in a stall.
- [NTSB MIA99LA212](https://openairdocs.org/ntsb/MIA99LA212.md): Air Tractor AT-401 · Moore Haven, FL · Accident · No injuries · Limited investigation · Final report · Aug 2, 1999 · N15585 · Substantial damage
  > The pilot exceeding the gross takeoff weight which reduced the climb capability and subsequent in-flight collision with terrain. Contributing to the accident was the high temperature and the pilot's failure to use aircraft performance data for the weather…
- [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 SEA90LA105](https://openairdocs.org/ntsb/SEA90LA105.md): Air Tractor AT-401 · Jerome, ID · Accident · No injuries · Limited investigation · Final report · Jun 21, 1990 · N4530N · Substantial damage
  > The pilot did not maintain a proper altitude while maneuvering to reverse direction.
- [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."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_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 230))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=0390204&occurrence=230

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