# NTSB investigations: Pratt & Whitney JT9D-3A, IL

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 CHI95LA188](https://openairdocs.org/ntsb/CHI95LA188.md): Boeing 767-222 · Champagne, IL · Accident · Serious injuries · Limited investigation · Final report · Jun 20, 1995 · N606UA · No damage
  > an in-flight encounter with turbulence.
- [NTSB CHI88IA073](https://openairdocs.org/ntsb/CHI88IA073.md): Boeing 747-227B · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Feb 19, 1988 · N635US · 2 aircraft · No damage
  > Failure of the tower cab supervisor to assure that coordination between the south local controller and north local controller had been completed. A factor is the failure of FAA tower management to insure there were personnel manning the cab coordinator…

## 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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52050'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52050&state=IL

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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.