# NTSB investigations: Continental IO-540 series, TX

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 GAA17CA165](https://openairdocs.org/ntsb/GAA17CA165.md): Robinson Helicopter R44 · Spofford, TX · Accident · Minor injuries · Data collection · Final report · Feb 19, 2017 · N804DF · Substantial damage
  > The pilot's decision to hover-taxi out of the hangar and his subsequent failure to maintain clearance from the hangar.
- [NTSB GAA15CA232](https://openairdocs.org/ntsb/GAA15CA232.md): Robinson Helicopter R44 II · Prairie Lea, TX · Accident · Minor injuries · Data collection · Final report · Jul 16, 2015 · N804DF · Substantial damage
  > The pilot's failure to maintain rotor rpm, resulting in an uncontrolled descent and collision with trees.
- [NTSB DFW08CA177](https://openairdocs.org/ntsb/DFW08CA177.md): Robinson R44 II · Canyon Lake, TX · Accident · Minor injuries · Data collection · Final report · Jul 5, 2008 · N804DF · Substantial damage
  > A total loss of tail rotor effectiveness. Contributing to the accident was the pilot's improper decision to operate inside the height velocity curve.

## 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" = 'TX' 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 ('17051'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=17051&state=TX

---
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.