# NTSB investigations, AZ: 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 WPR24LA239](https://openairdocs.org/ntsb/WPR24LA239.md): Mcdonnell Douglas Helicopter 369 · Mesa, AZ · Accident · No injuries · Class 4 · Limited · Final report · Jul 9, 2024 · N540HH · Substantial damage
  > The pilot receiving instruction’s failure to maintain helicopter control during autorotation, which resulted in a dynamic rollover. Contributing to the accident was the delayed remedial action from the flight instructor.
- [NTSB WPR22LA146](https://openairdocs.org/ntsb/WPR22LA146.md): Robinson Helicopter R22 · Phoenix, AZ · Accident · No injuries · Class 4 · Limited · Final report · Apr 7, 2022 · N19VH · Substantial damage
  > The pilot’s failure to maintain helicopter control while on the ground when his attention was diverted, which resulted in a dynamic rollover.
- [NTSB WPR17LA019](https://openairdocs.org/ntsb/WPR17LA019.md): Bell 206B · Yuma, AZ · Accident · Serious injuries · Limited investigation · Final report · Nov 11, 2016 · N914HH · Substantial damage
  > The pilot’s inability to maintain helicopter control after its skid got caught on the landing pad while he was maneuvering the helicopter to land on it, which resulted in a dynamic roll-over.
- [NTSB WPR09CA198](https://openairdocs.org/ntsb/WPR09CA198.md): Better Burn LLC/Startube Div Exec 162F · Chandler, AZ · Accident · Minor injuries · Data collection · Final report · Apr 16, 2009 · N333ST · Substantial damage
  > The flight instructor's inadequate supervision of the flight and delay in taking remedial action to prevent the helicopter from touching down while drifting. Contributing to the accident was the design of the skid shoes.
- [NTSB WPR09CA173](https://openairdocs.org/ntsb/WPR09CA173.md): Robinson Helicopter R22 Beta · Chandler, AZ · Accident · No injuries · Data collection · Final report · Mar 30, 2009 · N74815 · Substantial damage
  > The certified flight instructor's inadequate supervision of the student pilot during a hover demonstration and his subsequent loss of helicopter control that 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 c."eventStateOrRegion" = 'AZ' AND c."eventCountry" = 'USA'
  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?state=AZ

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