# NTSB investigations: Pratt & Whitney R-1830 series, 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 CHI82FEE14](https://openairdocs.org/ntsb/CHI82FEE14.md): Douglas DC-3A · Sandwich, IL · Accident · No injuries · Final report · May 29, 1982 · N129H · Substantial damage
  > After returning from a parachute jumping flight, the pilot elected to land on the 1800 ft grass runway. A 3000 ft asphalt runway was available, but he had been using the grass runway to avoid wear on the tires. There was a 30 ft powerline at the approach end…
- [NTSB CHI72AC023](https://openairdocs.org/ntsb/CHI72AC023.md): Douglas DC-3 · Peotone, IL · Accident · Serious injuries · Closed · Sep 6, 1971 · N44992 · Minor damage
- [NTSB CHI63A0156](https://openairdocs.org/ntsb/CHI63A0156.md): Douglas DC-3 · Peoria, IL · Accident · No injuries · Closed · Mar 18, 1963 · N143D · Substantial damage

## 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 ('52020'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52020&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.