# NTSB investigations: Lycoming TI0-540 series, 1990, 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 CHI90FA174](https://openairdocs.org/ntsb/CHI90FA174.md): Piper PA-32R-301T · Ashton, IL · Accident · 2 fatal · Field investigation · Final report · Jul 11, 1990 · N43515 · Destroyed
  > A loss of aircraft control for an unknown reason, while en route in instrument meteorological conditions (IMC) on a dark night, and the pilot exceeding the design stress limits of the aircraft while attempting to recover from uncontrolled flight. Factors…
- [NTSB CHI90LA144](https://openairdocs.org/ntsb/CHI90LA144.md): Piper PA23-250 · Carbondale, IL · Accident · No injuries · Limited investigation · Final report · May 31, 1990 · N32AC · Substantial damage
  > The pilot's inability to maintain directional control during the touchdown and landing roll.
- [NTSB CHI90LA141](https://openairdocs.org/ntsb/CHI90LA141.md): Piper PA-31-350 · Plainfield, IL · Accident · No injuries · Limited investigation · Final report · May 30, 1990 · N62869 · Substantial damage
  > The pilot's failure to insure that the landing gear was extended and locked prior to touchdown.

## 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") = 1990
  AND 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 ('41533'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41533&state=IL&year=1990

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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.