# NTSB investigations, OK: VFR encounter with IMC

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 CEN23FA095](https://openairdocs.org/ntsb/CEN23FA095.md): Cessna 172 · Hooker, OK · Accident · 1 fatal · Class 3 · Field · Final report · Jan 29, 2023 · N6482B · Destroyed
  > The pilot’s decision to depart and continue the visual flight rules flight into night instrument meteorological conditions, which resulted in spatial disorientation and a loss of airplane control.
- [NTSB ERA18FA114](https://openairdocs.org/ntsb/ERA18FA114.md): Beech V35 · Hydro, OK · Accident · 2 fatal · Field investigation · Final report · Mar 26, 2018 · N7019N · Destroyed
  > The pilot's decision to continue the night visual flight rules flight into instrument meteorological conditions, which resulted in a loss of control due to spatial disorientation. Contributing was the pilot's lack of instrument/night currency, and his failure…
- [NTSB CEN15FA171](https://openairdocs.org/ntsb/CEN15FA171.md): Eurocopter AS 350 B2 · Eufaula, OK · Accident · 1 fatal · Field investigation · Final report · Mar 13, 2015 · N919EM · Destroyed
  > The flight's inadvertent encounter with night instrument meteorological conditions, which resulted in the pilot turning the helicopter and subsequently descending into trees and terrain due to spatial disorientation.
- [NTSB CEN13FA217](https://openairdocs.org/ntsb/CEN13FA217.md): Mooney M20E · Guymon, OK · Accident · 2 fatal · Field investigation · Final report · Apr 1, 2013 · N9330M · Destroyed
  > The noninstrument-rated pilot's encounter with instrument meteorological conditions, which resulted in spatial disorientation and his subsequent loss of airplane control. Contributing to the accident was the pilot's decision to take off in deteriorating…
- [NTSB CEN11FA300](https://openairdocs.org/ntsb/CEN11FA300.md): Dahlman-Dower Tailwind W-8 · Elk City, OK · Accident · 1 fatal · Field investigation · Final report · Apr 21, 2011 · N7804C · Substantial damage
  > The pilot's decision to attempt flight into instrument meteorological conditions in an airplane that was equipped for flight in visual meteorological conditions only, which resulted in the pilot’s spatial disoriented and loss of control of the airplane.
- [NTSB DEN08LA139](https://openairdocs.org/ntsb/DEN08LA139.md): Dickey RV-6A · Muskogee, OK · Accident · 1 fatal · Limited investigation · Final report · Aug 11, 2008 · N22163 · Destroyed
  > The pilot's improper decision to continue flight under visual flight rules into an area of reduced visibility weather conditions, which resulted in the pilot's spatial disorientation and subsequent loss of aircraft control. Contributing to the accident was…

## 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" = '401' 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/401/sequence?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.