# NTSB investigations: Lycoming VO-435 series, 2009

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 ERA09CA542](https://openairdocs.org/ntsb/ERA09CA542.md): Schweizer 269C · Quarryville, PA · Accident · Minor injuries · Data collection · Final report · Sep 26, 2009 · N233JA · Substantial damage
  > An untrained bystander's attempt to marshal the helicopter, which resulted in the helicopter's inadvertent encounter with an object.
- [NTSB WPR09CA333](https://openairdocs.org/ntsb/WPR09CA333.md): Bell 47G-2 · Turlock, CA · Accident · No injuries · Data collection · Final report · Jul 8, 2009 · N6768D · Substantial damage
  > The pilot's failure to maintain rotor RPM while maneuvering at a low altitude.
- [NTSB CEN09LA324](https://openairdocs.org/ntsb/CEN09LA324.md): Bell 47G · Kyle, TX · Accident · Serious injuries · Limited investigation · Final report · May 30, 2009 · N4823 · Substantial damage
  > The ground crewmember's failure to assure that the fuel nozzle was closed before pressurizing the line. Contributing to the accident was the lack of an available fire extinguisher.

## 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") = 2009
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41525'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41525&year=2009

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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.