# NTSB investigations: Lycoming IGSO-540-B1A, MI

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 CHI82IA102](https://openairdocs.org/ntsb/CHI82IA102.md): Beech 65-88 · Kalamazo, MI · Incident · No injuries · Incident investigation · Final report · Mar 26, 1982 · N20HR · Minor damage
  > Prior to landing the pilot could not extend the right main landing gear. He attempted to extend the gear by recycling the system and by using the manual extension, but to no avail. Subsequently, the aircraft was landed on a paved runway with the gear…
- [NTSB CHI69F0212](https://openairdocs.org/ntsb/CHI69F0212.md): Aero Comdr 680FL · Troy, MI · Accident · No injuries · Closed · Aug 27, 1968 · N783EF · Substantial damage
- [NTSB CHI68F0491](https://openairdocs.org/ntsb/CHI68F0491.md): Beech 65-80 · Midland, MI · Accident · No injuries · Closed · Dec 19, 1967 · N883J · 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" = 'MI' 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 ('41535'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41535&state=MI

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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.