# NTSB investigations, 2017: 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 GAA18CA089](https://openairdocs.org/ntsb/GAA18CA089.md): Robinson Helicopter R44 · Newark, OH · Accident · Minor injuries · Data collection · Final report · Dec 13, 2017 · N441ML · Substantial damage
  > The pilot’s failure to maintain lateral control of the helicopter during takeoff, which resulted in dynamic rollover.
- [NTSB WPR18LA004](https://openairdocs.org/ntsb/WPR18LA004.md): Western International Avia UH 1H · Arbuckle, CA · Accident · No injuries · Class 3 · Limited · Final report · Oct 13, 2017 · N247PV · Substantial damage
  > A collective control malfunction for reasons that could not be determined.
- [NTSB GAA17CA551](https://openairdocs.org/ntsb/GAA17CA551.md): Robinson Helicopter R22 · Santa Barbara, CA · Accident · No injuries · Data collection · Final report · Sep 24, 2017 · N177SR · Substantial damage
  > The student pilot’s unstabilized hover, which resulted in ground contact and a dynamic rollover. Contributing to the accident was the flight instructor’s delayed remedial action.
- [NTSB GAA17CA509](https://openairdocs.org/ntsb/GAA17CA509.md): Robinson Helicopter R22 · Bremerton, WA · Accident · No injuries · Data collection · Final report · Aug 24, 2017 · N7198J · Substantial damage
  > The student pilot’s improper bank control during takeoff, which resulted in a dynamic rollover.
- [NTSB CEN17RA377](https://openairdocs.org/ntsb/CEN17RA377.md): Mcdonnell Douglas MD900 · Heiligenblut, Austria · Accident · Minor injuries · Foreign investigation · Aug 1, 2017 · OE-XWF · Substantial damage
  > On August 1, 2017, at 1815 UTC, a McDonnell Douglas MD 900 Helicopter, Austrian registration OE-XWF, impacted mountainous terrain about 8 miles west-northwest of Heiligenblut, Austria. One medical crewmember sustained minor injuries. The pilot, the other…
- [NTSB GAA17CA383](https://openairdocs.org/ntsb/GAA17CA383.md): Robinson Helicopter R44 · Easton, PA · Accident · No injuries · Data collection · Final report · Jul 4, 2017 · N3025J · Substantial damage
  > The pilot’s distraction during liftoff due to the tail rotor chip warning light illuminating, which resulted in the helicopter drifting right, the skid touching down, and a dynamic roll-over.
- [NTSB GAA17CA296](https://openairdocs.org/ntsb/GAA17CA296.md): Schweizer 269C · Eden Prairie, MN · Accident · Minor injuries · Data collection · Final report · May 22, 2017 · N2032S · Substantial damage
  > The student pilot's loss of lateral control while practicing autorotations from a hover and the flight instructor's delayed remedial action, which resulted in a bounced landing and dynamic roll-over.
- [NTSB ERA17CA187](https://openairdocs.org/ntsb/ERA17CA187.md): Robinson R22 · Linden, NJ · Accident · No injuries · Data collection · Final report · May 20, 2017 · N2322Z · Substantial damage
  > The flight instructor's failure to maintain helicopter control while hovering, which resulted in skid contact with the ground and a dynamic roll-over.
- [NTSB GAA17CA251](https://openairdocs.org/ntsb/GAA17CA251.md): Bender Joseph KIT Rotoway · Wheatland, WY · Accident · No injuries · Data collection · Final report · Apr 30, 2017 · N164JB · Substantial damage
  > The pilot's decision to operate the helicopter in gusting wind and high-density altitude conditions and his positioning of the helicopter such that it resulted in a right quartering tailwind, which resulted in a loss of helicopter control due to a loss of…
- [NTSB ERA17LA103](https://openairdocs.org/ntsb/ERA17LA103.md): Eurocopter Deutschland EC 135 · Beattyville, KY · Accident · No injuries · Limited investigation · Final report · Feb 7, 2017 · N135LG · Substantial damage
  > The pilot's failure to maintain helicopter control while landing, which resulted in a hard landing and subsequent roll over.
- [NTSB GAA17CA132](https://openairdocs.org/ntsb/GAA17CA132.md): Bell Helicopter Textron 206 · Carson City, NV · Accident · Minor injuries · Data collection · Final report · Feb 2, 2017 · N519EH · Substantial damage
  > The pilot-in-command’s delayed remedial action to arrest the right yaw after the bounced landing while operating in a flight regime conducive to the loss of tail rotor effectiveness, which resulted in a roll-over.
- [NTSB GAA17CA130](https://openairdocs.org/ntsb/GAA17CA130.md): Robinson Helicopter R22 · Armstrong, TX · Accident · No injuries · Data collection · Final report · Jan 31, 2017 · N883KC · Substantial damage
  > The pilot’s failure to remove the left helicopter skid tie-down before takeoff, which resulted in dynamic roll-over.

## 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") = 2017
  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=2017

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