# NTSB investigations, 2011: 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 ERA12CA119](https://openairdocs.org/ntsb/ERA12CA119.md): Hughes 369D · Fall Branch, TN · Accident · No injuries · Data collection · Final report · Dec 21, 2011 · N500TN · Substantial damage
  > The pilot's improper decision to continue a visual flight into instrument meteorological conditions, which resulted in a wire strike.
- [NTSB ANC12CA016](https://openairdocs.org/ntsb/ANC12CA016.md): Cessna 207A · Kwigillingok, AK · Accident · Minor injuries · Data collection · Final report · Dec 21, 2011 · N6480H · Substantial damage
  > The pilot’s decision to continue visual flight into instrument meteorological conditions with moderate icing, which resulted in structural icing and an aerodynamic stall.
- [NTSB ANC12FA009](https://openairdocs.org/ntsb/ANC12FA009.md): Cessna 207 · Chuathbaluk, AK · Accident · 1 fatal · Field investigation · Final report · Nov 29, 2011 · N1673U · Substantial damage
  > The pilot’s loss of situational awareness after an inadvertent encounter with instrument meteorological conditions, which resulted in an in-flight collision with tree-covered terrain.
- [NTSB ERA12FA012](https://openairdocs.org/ntsb/ERA12FA012.md): Piper PA-32R-300 · Peru, WV · Accident · 3 fatal · Field investigation · Final report · Oct 3, 2011 · N115CL · Substantial damage
  > The non-instrument rated pilot's improper decision to continue visual flight into instrument meteorological conditions, which resulted in spatial disorientation and subsequent in-flight collision with mountainous terrain.
- [NTSB WPR11FA395](https://openairdocs.org/ntsb/WPR11FA395.md): Maule M-7-235C · Brookings, OR · Accident · 1 fatal · Field investigation · Final report · Aug 21, 2011 · N199BF · Substantial damage
  > The pilot’s improper decision to continue flight under visual flight rules into instrument meteorological conditions, which resulted in a collision with trees while on approach for landing.
- [NTSB ANC11FA077](https://openairdocs.org/ntsb/ANC11FA077.md): Cessna 207 · McGrath, AK · Accident · 2 fatal · Field investigation · Final report · Aug 14, 2011 · N91099 · Substantial damage
  > The pilot's decision to continue visual flight rules flight into instrument meteorological conditions, which resulted in an in-flight collision with mountainous terrain.
- [NTSB ERA11FA422](https://openairdocs.org/ntsb/ERA11FA422.md): Piper PA-28-180 · Berne, NY · Accident · 1 fatal · Field investigation · Final report · Jul 25, 2011 · N1279T · Substantial damage
  > The pilot's continued visual flight into instrument meteorological conditions, which resulted in a collision with trees and rising terrain while attempting to reverse course. Contributing to the accident was the pilot's failure to obtain a preflight weather…
- [NTSB ERA11WA439](https://openairdocs.org/ntsb/ERA11WA439.md): Robinson R-44 · Istok, Russia · Accident · 1 fatal · Foreign investigation · Jul 9, 2011 · RA-04304 · Substantial damage
  > On July 9, 2011, at 1900 universal coordinated time, a Robinson R-44, Russian registration RA-04304, registered to and operated by a private owner, collided with the Yenisei River, near Istok, Krasnoyarsk Region, Russia, during a repositioning flight at…
- [NTSB WPR11FA241](https://openairdocs.org/ntsb/WPR11FA241.md): Cessna R172K · Cold Springs, NV · Accident · 3 fatal · Field investigation · Final report · May 29, 2011 · N9831V · Substantial damage
  > The pilot's continued visual flight rules flight into instrument meteorological conditions, which resulted in a controlled collision with terrain.
- [NTSB WPR11FA230](https://openairdocs.org/ntsb/WPR11FA230.md): Cameron Lancair Legacy · Pioneer, CA · Accident · 1 fatal · Field investigation · Final report · May 18, 2011 · N121J · Substantial damage
  > The pilot’s continued flight into instrument meteorological conditions at an insufficient altitude to clear terrain.
- [NTSB ERA11GA207](https://openairdocs.org/ntsb/ERA11GA207.md): Cessna A185F · Ashland, ME · Accident · 1 fatal · Final report · Mar 24, 2011 · N724MT · Substantial damage
  > An inadvertent encounter with localized instrument meteorological conditions, which resulted in spatial disorientation and a loss of control.
- [NTSB CEN11FA240](https://openairdocs.org/ntsb/CEN11FA240.md): Cessna 150D · Baraboo, WI · Accident · 2 fatal · Field investigation · Final report · Mar 20, 2011 · N4178U · Substantial damage
  > The student pilot’s inadequate preflight planning and his decision to continue the flight into instrument meteorological conditions, which resulted in a subsequent loss of airplane control.

## 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 year(c."eventDate") = 2011
  AND c."mKey" IN (SELECT e.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e."isDefiningEvent" AND e."tier2Number" = '401')
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/401/cases?year=2011

---
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.