# NTSB investigations, OK: Turbulence encounter

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 DCA25LA190](https://openairdocs.org/ntsb/DCA25LA190.md): Boeing 737-7H4 · Tahlequah, OK · Accident · Serious injuries · Class 4 · Limited · Final report · Apr 20, 2025 · N461WN · No damage
  > The airplane’s encounter with moderate turbulence during descent.
- [NTSB CEN18LA156](https://openairdocs.org/ntsb/CEN18LA156.md): Laminar Lancair 360 · Woodward, OK · Accident · No injuries · Limited investigation · Final report · May 2, 2018 · N92WL · Substantial damage
  > The pilot-rated passenger’s inadvertent contact with and closure of the emergency fuel shutoff valve, which resulted in the total loss of engine power due to fuel starvation. Contributing to the accident was the pilot's lack of experience in the accident…
- [NTSB WPR12LA144](https://openairdocs.org/ntsb/WPR12LA144.md): Boeing 737-7H4 · Laverne, OK · Accident · Serious injuries · Limited investigation · Final report · Mar 20, 2012 · N247WN · No damage
  > The airplane’s encounter with severe turbulence during cruise flight, which resulted in a serious injury to a flight attendant.
- [NTSB DEN08LA111](https://openairdocs.org/ntsb/DEN08LA111.md): Cessna 172R · Tishomingo, OK · Accident · No injuries · Limited investigation · Final report · Jun 21, 2008 · N5178Y · Substantial damage
  > The pilot's failure to maintain aircraft control, resulting in an inadvertent stall during the landing flare. Contributing factors in this accident was the terrain-induced turbulence, and the instructor's inadequate supervision of the pilot.

## 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 s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '360' 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/360/sequence?state=OK

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