# NTSB investigations, IL: 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 CEN17FA064](https://openairdocs.org/ntsb/CEN17FA064.md): Piper PA 28R-200 · Vienna, IL · Accident · 4 fatal · Field investigation · Final report · Dec 31, 2016 · N2806R · Destroyed
  > The non-instrument rated pilot's decision to descend through an overcast layer of weather during dark night conditions, which resulted in the airplane impacting trees.
- [NTSB CEN12FA083](https://openairdocs.org/ntsb/CEN12FA083.md): Cirrus Design SR20 · Crystal Lake, IL · Accident · 4 fatal · Field investigation · Final report · Nov 26, 2011 · N223CD · Substantial damage
  > The noninstrument-rated pilot's decision to continue flight in instrument meteorological conditions, which resulted in the pilot’s spatial disorientation and loss of control of the airplane.
- [NTSB CEN10CA452](https://openairdocs.org/ntsb/CEN10CA452.md): Maule MX-7-180A · Pittsfield, IL · Accident · No injuries · Data collection · Final report · Jul 30, 2010 · N17MX · Substantial damage
  > The pilot's loss of directional control during a precautionary off-field landing that he performed after encountering deteriorating weather conditions.

## 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" = 'IL' 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=IL

---
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.