# NTSB investigations: Lycoming ALF-502 SER. 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 CHI00IA037](https://openairdocs.org/ntsb/CHI00IA037.md): British Aerospace BAE 146-200A · Chicago, IL · Incident · Minor injuries · Incident investigation · Final report · Dec 1, 1999 · N606AW · Minor damage
  > An undetermined failure in the hydraulic system, which resulted in the airplane's entire braking system becoming temporarily inoperative. A factor associated with the incident was the airport terminal building that was contacted by the airplane.
- [NTSB CHI94IA134](https://openairdocs.org/ntsb/CHI94IA134.md): British Aerospace BAE-146-200 · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Apr 17, 1994 · N609AW · No damage
  > a loose fuel nozzle.
- [NTSB CHI93IA312](https://openairdocs.org/ntsb/CHI93IA312.md): British Aerospace 146-300A · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Jul 21, 1993 · N611AW · Minor damage
  > was a crack in the fuel system fuel flow distribution manifold which resulted from an inadequate design by the manufacturer.

## 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 ('41580'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41580&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.