# NTSB investigations, WY: 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 WPR26LA048](https://openairdocs.org/ntsb/WPR26LA048.md): Aviat A1 · Evanston, WY · Accident · Serious injuries · Class 4 · Limited · Final report · Oct 4, 2025 · N96WJ · Substantial damage
  > The airplane’s encounter with downdrafts in mountainous terrain, which resulted in a collision with terrain. Contributing to the accident was the pilot’s decision to continue the flight through mountainous terrain in marginal weather conditions.
- [NTSB DCA25LA276](https://openairdocs.org/ntsb/DCA25LA276.md): Airbus A330 · Creston, WY · Accident · Serious injuries · Class 3 · Limited · Preliminary report · Jul 30, 2025 · N422DZ · Minor damage
  > On July 30, 2025, at 1723 mountain daylight time, Delta Air Lines flight 56, an Airbus A330-941, encountered severe turbulence while in cruise flight at an altitude of 37,000 ft near Creston, Wyoming. After determining that injuries had occurred, the flight…
- [NTSB WPR23FA137](https://openairdocs.org/ntsb/WPR23FA137.md): Cessna 182S · Alcova, WY · Accident · 1 fatal · Class 3 · Field · Final report · Mar 21, 2023 · N314FR · Substantial damage
  > The airplane’s encounter with low level wind shear associated with moderate turbulence, which resulted in a loss of airplane control.
- [NTSB DCA14LA060](https://openairdocs.org/ntsb/DCA14LA060.md): Boeing 737 · Kaycee, WY · Accident · Serious injuries · Limited investigation · Final report · Feb 17, 2014 · N23708 · No damage
  > an encounter with severe mountain wave turbulence during cruise flight.

## 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" = 'WY' 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=WY

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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.