# NTSB investigations: Air Tractor AT-502B: Nose over/nose down

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 GAA19CA339](https://openairdocs.org/ntsb/GAA19CA339.md): Air Tractor AT502 · San Benito, TX · Accident · No injuries · Data collection · Final report · Jun 13, 2019 · N103CK · Substantial damage
  > The pilot's improper decision to take off with the airplane near its maximum allowable gross takeoff weight and his subsequent exceedance of the airplane's critical angle of attack during takeoff, which resulted in an aerodynamic stall.
- [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 WPR14LA267](https://openairdocs.org/ntsb/WPR14LA267.md): Air Tractor AT 502B · Sacramento, CA · Accident · Minor injuries · Limited investigation · Final report · Jun 23, 2014 · N61150 · Substantial damage
  > The total loss of engine power for reasons that could not be determined because the airplane was not available for postaccident examination.
- [NTSB ERA12CA003](https://openairdocs.org/ntsb/ERA12CA003.md): Air Tractor AT-502B · Fort Pierce, FL · Accident · Serious injuries · Data collection · Final report · Oct 4, 2011 · N90805 · Substantial damage
  > The pilot's delayed decision to abort the 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" = '096' 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/096/sequence?model=0390307

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