# NTSB investigations: Robinson Helicopter R44: Miscellaneous/other

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 CEN26LA260](https://openairdocs.org/ntsb/CEN26LA260.md): Robinson Helicopter R44 · Emerson, IA · Accident · No injuries · Class 4 · Limited · Final report · Jul 20, 2026 · N224RH · Substantial damage
  > The failure of the pilot to verify the loading hose had been disconnected before taking off and the failure of the loader to disconnect the fuel hose from the helicopter.
- [NTSB ERA26LA234](https://openairdocs.org/ntsb/ERA26LA234.md): Robinson Helicopter R44 · Mayesville, SC · Accident · Serious injuries · Class 4 · Limited · Final report · Jun 8, 2026 · N144CD · Substantial damage
  > The pilot’s failure to remain clear of a power line during an aerial application flight.
- [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 WPR16LA132](https://openairdocs.org/ntsb/WPR16LA132.md): Robinson Helicopter R44 · El Centro, CA · Accident · No injuries · Class 3 · Limited · Final report · Jun 28, 2016 · N8325X · Substantial damage
  > A loss of main rotor rpm and airframe vibration for reasons that could not be determined based on the available information, which resulted in a forced landing to sloping terrain and the helicopter rolling over.
- [NTSB GAA16CA279](https://openairdocs.org/ntsb/GAA16CA279.md): Robinson Helicopter R44 · Las Vegas, NV · Accident · No injuries · Data collection · Final report · Jun 2, 2016 · N441JL · Substantial damage
  > The pilot receiving instruction's incorrect action of interfering with the flight controls and failure to comply with the flight instructor's commands, which resulted in a loss of lateral bank control and a rollover.
- [NTSB ERA15CA262](https://openairdocs.org/ntsb/ERA15CA262.md): Robinson Helicopter R44 · Viola, TN · Accident · No injuries · Data collection · Final report · Jul 12, 2015 · N577AT · Substantial damage
  > The pilot's failure to see and avoid a guy wire, which resulted in contact with the wire and subsequent collision with terrain.
- [NTSB GAA15CA013](https://openairdocs.org/ntsb/GAA15CA013.md): Robinson Helicopter R44 · Lake Hamilton, AR · Accident · Minor injuries · Data collection · Final report · Mar 21, 2015 · N701CT · Substantial damage
  > The pilot's overcorrection to the landing pad shifting, which resulted in the helicopter impacting trees. A factor contributing to the accident was the collapse of the landing pad.
- [NTSB CEN14CA338](https://openairdocs.org/ntsb/CEN14CA338.md): Robinson Helicopter R44 · Olathe, KS · Accident · No injuries · Data collection · Final report · Jul 2, 2014 · N225TV · Substantial damage
  > The pilot's failure to follow the manufacturer's engine shutdown procedure.
- [NTSB ERA14CA143](https://openairdocs.org/ntsb/ERA14CA143.md): Robinson Helicopter R44 · Orlando, FL · Accident · No injuries · Data collection · Final report · Feb 10, 2014 · N7040U · Substantial damage
  > The pilot's inadequate preflight inspection in which he failed to remove the tail rotor covers, which resulted in the failure of the tail rotor drive shaft during engine start.
- [NTSB ERA12LA429](https://openairdocs.org/ntsb/ERA12LA429.md): Robinson Helicopter R44 · Tallahassee, FL · Accident · No injuries · Limited investigation · Final report · Jul 4, 2012 · N561CH · Substantial damage
  > The pilot’s failure to maintain awareness of the helicopter’s altitude while attempting to troubleshoot the clutch actuator warning light, which resulted in an inadvertent descent and impact with water. Contributing to the accident was the pilot's possible…
- [NTSB ERA12CA179](https://openairdocs.org/ntsb/ERA12CA179.md): Robinson Helicopter R44 · N. Charleston, SC · Accident · No injuries · Data collection · Final report · Feb 13, 2012 · N5511L · Substantial damage
  > The flight instructor’s failure to apply power during a practice autorotation in order to arrest a high rate of descent, which resulted in an in-flight collision with terrain.
- [NTSB CEN11CA627](https://openairdocs.org/ntsb/CEN11CA627.md): Robinson Helicopter R44 · Batesville, TX · Accident · No injuries · Data collection · Final report · Aug 26, 2011 · N99FJ · Substantial damage
  > The pilot’s inadequate preflight inspection that failed to ensure all tie-down clamps were removed prior to takeoff, which resulted in the helicopter’s dynamic rollover.
- [NTSB WPR09LA436](https://openairdocs.org/ntsb/WPR09LA436.md): Robinson Helicopter R44 · Torrance, CA · Accident · No injuries · Limited investigation · Final report · Sep 3, 2009 · N8361X · Substantial damage
  > A main rotor overspeed due to the pilot’s failure to maintain rotor RPM within allowable limits during a practice autorotation.

## 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 ('7640120')
    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" = '900' 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/900/sequence?model=7640120

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