# NTSB investigations: Lycoming O-540-F1B5, 2012

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 ERA12LA429](https://openairdocs.org/ntsb/ERA12LA429.md): Robinson Helicopter R44 · Tallahassee, FL · Accident · No injuries · Limited investigation · Final report · Jul 4, 2012 · N561CH · Substantial damage
  > The pilot’s failure to maintain awareness of the helicopter’s altitude while attempting to troubleshoot the clutch actuator warning light, which resulted in an inadvertent descent and impact with water. Contributing to the accident was the pilot's possible…
- [NTSB ERA12CA179](https://openairdocs.org/ntsb/ERA12CA179.md): Robinson Helicopter R44 · N. Charleston, SC · Accident · No injuries · Data collection · Final report · Feb 13, 2012 · N5511L · Substantial damage
  > The flight instructor’s failure to apply power during a practice autorotation in order to arrest a high rate of descent, which resulted in an in-flight collision with terrain.

## 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") = 2012
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('42353'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=42353&year=2012

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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.