# NTSB investigations: Air Tractor AT-401: In flight collision with object

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 MIA03LA094](https://openairdocs.org/ntsb/MIA03LA094.md): Air Tractor AT- 401 · Fellsmere, FL · Accident · Serious injuries · Limited investigation · Final report · Apr 8, 2003 · N4549N · Destroyed
  > The poor in-flight planning by the pilot-in-command for his overhsooting the pull-up following a spray pass resulting in the in-flight collision with trees then terrain. Contributing to the accident was sunglare that the pilot encountered during the spray…
- [NTSB FTW02LA245](https://openairdocs.org/ntsb/FTW02LA245.md): Air Tractor AT-401 · Hearne, TX · Accident · Minor injuries · Limited investigation · Final report · Aug 30, 2002 · N9193Y · Substantial damage
  > The pilot's failure to maintain clearance with a pump rig while maneuvering during an aerial application flight. A factor was the object.
- [NTSB CHI01LA195](https://openairdocs.org/ntsb/CHI01LA195.md): Air Tractor AT-401 · Ellinwood, KS · Accident · No injuries · Limited investigation · Final report · Jul 2, 2001 · N4549E · Substantial damage
  > The 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 SEA00LA073](https://openairdocs.org/ntsb/SEA00LA073.md): Air Tractor AT-401 · Acequia, ID · Accident · Minor injuries · Limited investigation · Final report · Apr 14, 2000 · N1524H · Substantial damage
  > The pilot's failure to obtain/maintain adequate clearance with the irrigation system during initial climb. A contributing factor was the irrigation pivot.
- [NTSB FTW99LA239](https://openairdocs.org/ntsb/FTW99LA239.md): Air Tractor AT-401 · Hart, TX · Accident · Minor injuries · Limited investigation · Final report · Aug 25, 1999 · N15119 · Substantial damage
  > The pilot's failure to maintain clearance with power lines.
- [NTSB SEA98LA080](https://openairdocs.org/ntsb/SEA98LA080.md): Air Tractor AT-401 · Idaho Falls, ID · Accident · Minor injuries · Limited investigation · Final report · May 20, 1998 · N1009T · Substantial damage
  > The pilot's failure to maintain clearance from a power transmission line during an aerial application flight. Factors include a power line located just beyond the boundary of the field being sprayed, and the pilot's incorrect judgement of the distance between…
- [NTSB MIA97LA208](https://openairdocs.org/ntsb/MIA97LA208.md): Air Tractor AT-401 · Altha, FL · Accident · Minor injuries · Limited investigation · Final report · Jul 8, 1997 · N1509C · Destroyed
  > the pilot's impairment of judgment and performance due to alcohol which led to his failure to maintain control of the airplane.
- [NTSB CHI97LA106](https://openairdocs.org/ntsb/CHI97LA106.md): Air Tractor AT-401 · Highmore, SD · Accident · Minor injuries · Limited investigation · Final report · Apr 18, 1997 · N1008P · Substantial damage
  > a premature lift-off of the airplane by the pilot in command.
- [NTSB FTW95LA358](https://openairdocs.org/ntsb/FTW95LA358.md): Air Tractor AT-401 · Taft, TX · Accident · No injuries · Limited investigation · Final report · Aug 22, 1995 · N9190Q · Destroyed
  > The pilot's diverted attention, which resulted in his failure to assure that clearance was maintained from the transmission line.
- [NTSB MIA95LA180](https://openairdocs.org/ntsb/MIA95LA180.md): Air Tractor AT-401 · Clewiston, FL · Accident · No injuries · Limited investigation · Final report · Jul 10, 1995 · N9186J · Substantial damage
  > Improper weather evaluation by the pilot in command while attempting to takeoff with a quartering tailwind associated with a nearby thunderstorm and failure of the pilot to maintain directional control.
- [NTSB LAX91LA302](https://openairdocs.org/ntsb/LAX91LA302.md): Air Tractor AT-401 · Calexico, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 10, 1991 · N4538K · Destroyed
  > The erection of a construction sign on an active runway by county workers without notifying the airport operators, and, the inability of the pilot to detect the presence of the sign during the dark night takeoff.

## 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" = 220))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=0390204&occurrence=220

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