# NTSB investigations: Robinson Helicopter R44 II: Abnormal runway contact

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 ERA23LA228](https://openairdocs.org/ntsb/ERA23LA228.md): Robinson Helicopter R44 II · Bradenton, FL · Accident · No injuries · Class 4 · Limited · Final report · May 11, 2023 · N62HT · Substantial damage
  > The pilot’s failure to maintain adequate rotor rpm during landing which resulted in a premature landing on uneven ground and a subsequent rollover.
- [NTSB WPR23LA170](https://openairdocs.org/ntsb/WPR23LA170.md): Robinson Helicopter R44 II · Van Nuys, CA · Accident · No injuries · Class 4 · Limited · Final report · Apr 28, 2023 · N549TS · Substantial damage
  > The pilot’s failure to maintain lateral control of the helicopter, which resulted in a hard landing.
- [NTSB GAA19CA195](https://openairdocs.org/ntsb/GAA19CA195.md): Robinson R44 · Taunton, MA · Accident · No injuries · Data collection · Final report · Apr 2, 2019 · N344R · Substantial damage
  > The pilot's improper decision to land with a gusting left quartering tailwind and his subsequent attempt to reposition the helicopter and take off, which resulted in a dynamic rollover.
- [NTSB WPR13LA188](https://openairdocs.org/ntsb/WPR13LA188.md): Robinson Helicopter R44 II · Ocean Shores, WA · Accident · Minor injuries · Limited investigation · Final report · Apr 12, 2013 · N442FG · Substantial damage
  > The pilots’ loss of helicopter control during the approach to landing.
- [NTSB NYC08TA183](https://openairdocs.org/ntsb/NYC08TA183.md): Robinson R44 II · Lake Wales, FL · Accident · Minor injuries · Final report · May 15, 2008 · N911GJ · Substantial damage
  > The pilot's improper recovery from a practice autorotation.
- [NTSB LAX08CA057](https://openairdocs.org/ntsb/LAX08CA057.md): Robinson R44 II · Bullhead City, AZ · Accident · No injuries · Data collection · Final report · Feb 3, 2008 · N44NV · Substantial damage
  > The pilot's misjudged landing flare, inadequate bounced landing recovery, and failure to maintain directional control during a bounced landing that resulted in the tail rotor blades colliding with a hangar. Contributing to the accident was the burned out…

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('7640122', '7640123')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '090' 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/090/sequence?model=7640122

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