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

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 WPR24LA251](https://openairdocs.org/ntsb/WPR24LA251.md): Robinson Helicopter R44 · Carlsbad, CA · Accident · Minor injuries · Class 4 · Limited · Final report · Jul 18, 2024 · N886JB · Substantial damage
  > The pilot’s failure to maintain lateral control of the helicopter while departing with a crosswind, which resulted in a dynamic rollover.
- [NTSB GAA17CA151](https://openairdocs.org/ntsb/GAA17CA151.md): Robinson Helicopter R44 · Holtville, CA · Accident · No injuries · Data collection · Final report · Feb 14, 2017 · N4534G · Substantial damage
  > The pilot’s initiation of a left turn at a low altitude with low airspeed and a tailwind while operating near maximum gross weight, which resulted in the helicopter losing altitude, touching down on a dirt surface, and a subsequent dynamic rollover.
- [NTSB WPR16LA132](https://openairdocs.org/ntsb/WPR16LA132.md): Robinson Helicopter R44 · El Centro, CA · Accident · No injuries · Class 3 · Limited · Final report · Jun 28, 2016 · N8325X · Substantial damage
  > A loss of main rotor rpm and airframe vibration for reasons that could not be determined based on the available information, which resulted in a forced landing to sloping terrain and the helicopter rolling over.
- [NTSB WPR09CA339](https://openairdocs.org/ntsb/WPR09CA339.md): Robinson Helicopter R44 · Marysville, CA · Accident · No injuries · Data collection · Final report · Jul 13, 2009 · N244HP · Substantial damage
  > The pilot’s failure to maintain adequate clearance from the power line wires.
- [NTSB LAX00LA086](https://openairdocs.org/ntsb/LAX00LA086.md): Robinson R44 · Palo Alto, CA · Accident · No injuries · Limited investigation · Final report · Feb 2, 2000 · N999EV · Substantial damage
  > The pilot's failure to use carburetor heat, resulting in a loss of engine power, and, his misjudged autorotation approach that resulted in a collision with the ground during the landing flare. Contributing to the accident was the conditions conducive to…

## 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" = 'CA' 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 ('42353'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

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

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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.