# NTSB investigations, WA: 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 WPR12LA428](https://openairdocs.org/ntsb/WPR12LA428.md): Rockwell International 690A · Ellensburg, WA · Accident · Minor injuries · Limited investigation · Final report · Sep 16, 2012 · N57112 · Substantial damage
  > The pilot’s failure to avoid a turbulent smoke column, which resulted in an overstress failure of the left aileron control rod.
- [NTSB WPR11LA149](https://openairdocs.org/ntsb/WPR11LA149.md): Boeing 757-232 · Naches, WA · Accident · Serious injuries · Limited investigation · Final report · Feb 28, 2011 · N684DA · No damage
  > The airplane's encounter with moderate turbulence at a higher altitude than the flight crew expected, resulting in an injury to a cabin crewmember.
- [NTSB SEA08CA172](https://openairdocs.org/ntsb/SEA08CA172.md): Lyons Navajo HKS · Waterville, WA · Accident · Serious injuries · Data collection · Final report · Aug 7, 2008 · N1762C · Substantial damage
  > The pilot's failure to maintain aircraft control while maneuvering. Contributing to the accident was a microburst condition.

## 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" = 'WA' 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=WA

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