# NTSB investigations, 2015: Dynamic rollover

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 WPR15LA261](https://openairdocs.org/ntsb/WPR15LA261.md): Schweizer 269C · Forest Grove, OR · Accident · Minor injuries · Limited investigation · Final report · Sep 18, 2015 · N290R · Substantial damage
  > A partial loss of engine power during cruise flight for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB GAA15CA238](https://openairdocs.org/ntsb/GAA15CA238.md): Robinson Helicopter R22 Beta · Ronkonkoma, NY · Accident · Minor injuries · Data collection · Final report · Aug 19, 2015 · N86EH · Substantial damage
  > The student pilot's loss of control during a hover, which resulted in ground contact and a dynamic rollover. Contributing to the accident was the flight instructor's lack of action to remediate the student pilot's control inputs and recover aircraft control.
- [NTSB ERA15LA296](https://openairdocs.org/ntsb/ERA15LA296.md): Bell 47G 3B 1 · Camden, AL · Accident · No injuries · Limited investigation · Final report · Aug 3, 2015 · N4002G · Substantial damage
  > A failure of the helicopter's hydraulic flight control systems for reasons that could not be determined due to the fire damage, and the pilot's inability to turn off the hydraulic system to relieve control pressure.
- [NTSB CEN15CA261](https://openairdocs.org/ntsb/CEN15CA261.md): Brewer Sportcopter Votex M · Sikeston, MO · Accident · Minor injuries · Data collection · Final report · Jun 5, 2015 · N229MG · Substantial damage
  > The pilot inadvertently reducing engine power to the idle position while maneuvering at a low altitude.
- [NTSB GAA15CA032](https://openairdocs.org/ntsb/GAA15CA032.md): Robinson Helicopter R22 Beta · Fort Davis, TX · Accident · No injuries · Data collection · Final report · Apr 3, 2015 · N8363D · Substantial damage
  > The pilot's failure to maintain control of the helicopter during flight, which resulted in the helicopter impacting terrain.
- [NTSB WPR15CA119](https://openairdocs.org/ntsb/WPR15CA119.md): Robinson Helicopter R22 Beta · San Bernardino, CA · Accident · Minor injuries · Data collection · Final report · Mar 3, 2015 · N4003S · Substantial damage
  > The pilot's failure to maintain adequate clearance from the ground, which resulted in a loss of control and subsequent dynamic rollover.

## 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") = 2015
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '231' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/231/sequence?year=2015

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