# NTSB investigations, 2018: 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 ERA19FA035](https://openairdocs.org/ntsb/ERA19FA035.md): Aerospatiale AS 355F2 · Beekmantown, NY · Accident · 2 fatal · Field investigation · Final report · Oct 30, 2018 · N372CA · Destroyed
  > The pilot's failure to keep the helicopter clear of a utility pole while hovering with a tailwind, which resulted in a dynamic rollover into active power lines.
- [NTSB GAA18CA483](https://openairdocs.org/ntsb/GAA18CA483.md): Robinson R22 · Ocean City, NJ · Accident · No injuries · Data collection · Final report · Aug 10, 2018 · N92TR · Substantial damage
  > The flight instructor's decision to conduct hover practice at a lower altitude than recommended and his delayed remedial action during recovery from an unstable hover, which resulted in a dynamic rollover.
- [NTSB CEN18LA306](https://openairdocs.org/ntsb/CEN18LA306.md): Bell 47G 3B · Custer, SD · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 2, 2018 · N347BH · Substantial damage
  > The pilot’s mismanagement of rotor RPM and subsequent forced landing on uneven terrain which led to a dynamic rollover.
- [NTSB GAA18CA450](https://openairdocs.org/ntsb/GAA18CA450.md): Robinson R44 · Lantana, FL · Accident · Minor injuries · Data collection · Final report · Jul 27, 2018 · N479AT · Substantial damage
  > The student pilot’s improper pitch control during landing, which resulted in a dynamic rollover.
- [NTSB ANC18CA056](https://openairdocs.org/ntsb/ANC18CA056.md): Eurocopter AS 350 B3 · Kobuk, AK · Accident · Minor injuries · Class 4 · Data collection · Final report · Jul 25, 2018 · N354LA · Substantial damage
  > The pilot's inadvertent dynamic rollover during takeoff.
- [NTSB ERA18LA170](https://openairdocs.org/ntsb/ERA18LA170.md): Bell OH 58A · Raleigh, NC · Accident · Minor injuries · Limited investigation · Final report · Jun 19, 2018 · N303HP · Substantial damage
  > The pilot's inadequate preflight inspection, during which he failed to detach ground handling equipment from the helicopter before initiating the takeoff, which resulted in the subsequent dynamic rollover.
- [NTSB GAA18CA159](https://openairdocs.org/ntsb/GAA18CA159.md): Hughes 269 · Jacksonville, FL · Accident · No injuries · Data collection · Final report · Mar 10, 2018 · N9020M · Substantial damage
  > The pilot’s failure to maintain rotor rpm during a practice autorotation, which resulted in ground contact and a dynamic rollover.
- [NTSB GAA18CA147](https://openairdocs.org/ntsb/GAA18CA147.md): Robinson Helicopter R44 · Talkeetna, AK · Accident · No injuries · Data collection · Final report · Feb 24, 2018 · N7519G · Substantial damage
  > The pilot’s selection of unsuitable terrain for landing, which resulted in a 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") = 2018
  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=2018

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