# NTSB investigations, WI: Altitude deviation,uncontrolled

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 CHI04CA191](https://openairdocs.org/ntsb/CHI04CA191.md): Aerostar RX-7 · Wausau, WI · Accident · Serious injuries · Data collection · Final report · Jul 25, 2004 · N7144Y · No damage
  > The pilot's inability to compensation for the turbulence and wind conditions. Contributing factors were the variable winds and the turbulence.
- [NTSB CHI04LA084](https://openairdocs.org/ntsb/CHI04LA084.md): Boeing 757-200 · Janesville, WI · Accident · Serious injuries · Limited investigation · Final report · Mar 1, 2004 · N516UA · No damage
  > The unexpected encounter with convective turbulence.
- [NTSB CHI99LA184](https://openairdocs.org/ntsb/CHI99LA184.md): Boeing 777-222 · Madison, WI · Accident · Serious injuries · Limited investigation · Final report · Jun 12, 1999 · N781UA · No damage
  > the pilot-in-command's inadequate evaluation of the weather conditions. Factors associated with the accident were the turbulence encountered and the seat belt sign was not illuminated.
- [NTSB CHI94LA277](https://openairdocs.org/ntsb/CHI94LA277.md): Beech C90A · Janesville, WI · Accident · No injuries · Limited investigation · Final report · Aug 19, 1994 · N1553N · Substantial damage
  > the pilot-in-command's exceeding the design structural limits of the airplane. Factors were turbulence in clouds and the pilot- in-command;s continued flight into known adverse weather.
- [NTSB CHI93LA224](https://openairdocs.org/ntsb/CHI93LA224.md): Boeing 757-222 · Baraboo, WI · Accident · Serious injuries · Limited investigation · Final report · Jun 24, 1993 · N579UA · No damage
  > an encounter with moderate turbulence in the clouds.

## 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" = 'WI' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 110)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=110&state=WI

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