# NTSB investigations: Lycoming VO-435 series, 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 CEN13LA086](https://openairdocs.org/ntsb/CEN13LA086.md): Bell 47G-2 · Walkerville, MI · Accident · 1 fatal · Limited investigation · Final report · Dec 1, 2012 · N3755Z · Substantial damage
  > The pilot's failure to maintain altitude while maneuvering, which resulted in a collision with trees. Contributing to the accident was the pilot's decision to fly at a low altitude, which did not provide enough margin to recover from the descent.
- [NTSB CEN12LA557](https://openairdocs.org/ntsb/CEN12LA557.md): Bell 47G-2 · Flandreau, SD · Accident · No injuries · Limited investigation · Final report · Aug 14, 2012 · N444EH · Substantial damage
  > A malfunction of the helicopter’s throttle system, which resulted in a loss of engine power during cruise flight.
- [NTSB CEN12CA484](https://openairdocs.org/ntsb/CEN12CA484.md): Bell 47G-2A · Austin, IN · Accident · Serious injuries · Data collection · Final report · Jul 27, 2012 · N652HA · Substantial damage
  > The pilot did not maintain clearance from terrain during a low-level aerial application flight and lost control of the helicopter.

## 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 ('41525'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

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