# NTSB investigations: Pratt & Whitney Canada PT6A-34AG: Loss of control on ground

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 CEN20CA079](https://openairdocs.org/ntsb/CEN20CA079.md): Air Tractor AT-504 · Fort Morgan, CO · Accident · No injuries · Data collection · Final report · Feb 8, 2020 · N970FA · Substantial damage
  > The pilot's improper landing flare, which resulted in a bounced landing, and his subsequent failure to maintain directional control, which resulted in the left main landing gear tire bursting and the tailwheel assembly failing.
- [NTSB GAA18CA010](https://openairdocs.org/ntsb/GAA18CA010.md): Air Tractor AT 402B · Brawley, CA · Accident · No injuries · Data collection · Final report · Oct 11, 2017 · N80060 · Substantial damage
  > The pilot’s failure to maintain directional control during landing in gusting crosswind conditions.
- [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.

## 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.engine_model_code IN ('52251')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '230'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/230/cases?engine=52251

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