# NTSB investigations: Air Tractor AT-502B: Runway excursion

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 ERA20CA253](https://openairdocs.org/ntsb/ERA20CA253.md): Air Tractor AT502 · Washington, NC · Accident · No injuries · Class 4 · Data collection · Final report · Jul 15, 2020 · N2038Q · Substantial damage
  > The pilot's failure to maintain directional during landing on a wet grass runway.
- [NTSB GAA18CA476](https://openairdocs.org/ntsb/GAA18CA476.md): Air Tractor AT502 · Louise, MS · Accident · No injuries · Data collection · Final report · Jul 30, 2018 · N205SK · Substantial damage
  > The pilot's improper landing flare, which resulted in a hard, bounced landing and a subsequent loss of directional control.
- [NTSB CEN18LA249](https://openairdocs.org/ntsb/CEN18LA249.md): Air Tractor AT502 · Tappen, ND · Accident · No injuries · Limited investigation · Final report · Jun 28, 2018 · N502S · Substantial damage
  > The partial loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB CEN18LA194](https://openairdocs.org/ntsb/CEN18LA194.md): Air Tractor AT 502B · Qulin, MO · Accident · No injuries · Limited investigation · Final report · May 27, 2018 · N6180J · Substantial damage
  > The pilot’s improper weight-and-balance calculations and his decision to take off with the airplane at a high gross weight in high density altitude conditions, which resulted in an attempted takeoff that exceeded the airplane’s performance capability. Also…
- [NTSB GAA15CA152](https://openairdocs.org/ntsb/GAA15CA152.md): Air Tractor AT 502B · Edna, TX · Accident · No injuries · Data collection · Final report · Jun 24, 2015 · N6107W · Substantial damage
  > The pilot's failure to maintain directional control during the takeoff roll, resulting in a runway excursion, and collision with a fence.
- [NTSB CEN12LA500](https://openairdocs.org/ntsb/CEN12LA500.md): Air Tractor AT-502B · Newellton, LA · Accident · No injuries · Limited investigation · Final report · Aug 1, 2012 · N5128U · Substantial damage
  > The pilot's inadequate takeoff planning and his use of an improper flap setting, which resulted in a runway excursion and collision with terrain during 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 ('0390307')
    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" = '300' 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
```

This list as a web page: https://openairdocs.org/ntsb-events/300/sequence?model=0390307

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