# NTSB investigations, MT: 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 DCA18CA255](https://openairdocs.org/ntsb/DCA18CA255.md): Embraer ERJ175 · Cut Bank, MT · Accident · Serious injuries · Data collection · Final report · Jun 17, 2018 · N637CZ · No damage
  > an unexpected encounter with clear air turbulence.
- [NTSB DCA16CA030](https://openairdocs.org/ntsb/DCA16CA030.md): Airbus A319 115 · Great Falls, MT · Accident · Serious injuries · Data collection · Final report · Dec 10, 2015 · N3014R · No damage
  > an encounter with turbulence during initial descent.
- [NTSB WPR14FA362](https://openairdocs.org/ntsb/WPR14FA362.md): Cessna 177B · Neihart, MT · Accident · 1 fatal · Field investigation · Final report · Sep 2, 2014 · N34880 · Destroyed
  > The pilot's failure to maintain clearance from terrain while maneuvering at low altitude in turbulent conditions over mountainous terrain. Contributing to the accident was the pilot's improper decision to traverse the mountainous area with the airplane over…
- [NTSB WPR10CA469](https://openairdocs.org/ntsb/WPR10CA469.md): Piper PA-18-150 · White Sulphur Springs, MT · Accident · No injuries · Data collection · Final report · Sep 24, 2010 · N4036E · Substantial damage
  > The pilot's failure to maintain control of the airplane during a go-around in turbulent wind conditions, which resulted in a collision with trees.

## 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" = 'MT' 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=MT

---
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.
