# NTSB investigations: Pratt & Whitney PT6A series, OK

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 CEN25LA002](https://openairdocs.org/ntsb/CEN25LA002.md): Air Tractor AT-402A · Moffett, OK · Accident · No injuries · Class 4 · Limited · Final report · Oct 1, 2024 · N45472 · Substantial damage
  > The tail wheel assembly’s fractured bolt which resulted in the pilot’s loss of directional control during landing.
- [NTSB CEN24LA153](https://openairdocs.org/ntsb/CEN24LA153.md): Beech B300 · Oklahoma City, OK · Accident · No injuries · Class 4 · Limited · Final report · Apr 9, 2024 · N243MH · Substantial damage
  > An in-flight collision with a bird during the initial climb.
- [NTSB CEN18FA201](https://openairdocs.org/ntsb/CEN18FA201.md): Ayres S2R · El Reno, OK · Accident · 1 fatal · Field investigation · Final report · May 30, 2018 · N2249B · Destroyed
  > The pilot's failure to maintain clearance from tower guy wires while maneuvering during an aerial application flight.
- [NTSB CEN17LA121](https://openairdocs.org/ntsb/CEN17LA121.md): Beech C90A · Rattan, OK · Accident · No injuries · Limited investigation · Final report · Feb 14, 2017 · N1551C · Substantial damage
  > The loss of electrical power due to the pilot’s inadvertent selection of the engine start switches and the subsequent fuel exhaustion to the left engine as the pilot attempted to locate visual meteorological conditions. Contributing to the accident were the…
- [NTSB CEN15LA180](https://openairdocs.org/ntsb/CEN15LA180.md): Cessna 208B · Verdigris, OK · Accident · Minor injuries · Limited investigation · Final report · Mar 24, 2015 · N106BZ · Substantial damage
  > The fuel pump gear manufacturer’s allowance of set-up gears made from a nonconforming material to be put in the production inventory system, the installation of a nonconforming gear in the accident airplane’s production fuel pump, and the gear’s failure,…
- [NTSB CEN13FA080](https://openairdocs.org/ntsb/CEN13FA080.md): Cessna 208B · Bryans Corner, OK · Accident · Minor injuries · Field investigation · Final report · Nov 30, 2012 · N1324G · Substantial damage
  > The total loss of engine power as a result of a fractured compressor turbine blade due to fatigue cracking.
- [NTSB FTW03LA141](https://openairdocs.org/ntsb/FTW03LA141.md): Air Tractor AT-502B · Pond Creek, OK · Accident · No injuries · Limited investigation · Final report · Apr 28, 2003 · N60819 · Destroyed
  > The pilot's failure to attain adequate airspeed during liftoff resulting in a stall.
- [NTSB FTW00FA083](https://openairdocs.org/ntsb/FTW00FA083.md): Cessna 182M · Mcalester, OK · Accident · 1 fatal · Field investigation · Final report · Feb 16, 2000 · N91994 · 2 aircraft · Destroyed
  > The failure of both pilots to maintain visual lookout while maneuvering in the traffic pattern.
- [NTSB FTW99LA005](https://openairdocs.org/ntsb/FTW99LA005.md): Air Tractor AT-502B · Ringling, OK · Accident · No injuries · Limited investigation · Final report · Oct 8, 1998 · N502S · Substantial damage
  > The pilot's failure to maintain obstacle clearance. A factor was the sun glare which impaired the pilot's vision.
- [NTSB FTW95FA129](https://openairdocs.org/ntsb/FTW95FA129.md): Cessna 208B · Ardmore, OK · Accident · Minor injuries · Field investigation · Final report · Mar 2, 1995 · N9448B · Substantial damage
  > The pilot's continued flight into adverse weather conditions. Factors were the icing conditions prevailing at the destination airport, and the pilot's inability to maintain visual lookout due to windshield icing.
- [NTSB FTW81FPM04](https://openairdocs.org/ntsb/FTW81FPM04.md): Beech E18S · Tulsa, OK · Accident · No injuries · Closed · Nov 26, 1980 · N202GW · Substantial damage

## 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."eventStateOrRegion" = 'OK' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52032', '52034'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52032&state=OK

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.