# NTSB investigations: Robinson Helicopter R44: Roll over

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 CEN24LA303](https://openairdocs.org/ntsb/CEN24LA303.md): Robinson Helicopter R44 · Bryant, IA · Accident · No injuries · Class 3 · Limited · Final report · Aug 3, 2024 · N225ML · Substantial damage
  > A loss of engine power during takeoff for reasons that could not be determined, resulting in impact with terrain.
- [NTSB ERA23LA287](https://openairdocs.org/ntsb/ERA23LA287.md): Robinson Helicopter R44 · Myrtle Beach, SC · Accident · Minor injuries · Class 4 · Limited · Final report · Jul 4, 2023 · N7507X · Substantial damage
  > The pilot’s failure to maintain control of the helicopter during a hover taxi, which resulted in a rollover.
- [NTSB ERA23LA021](https://openairdocs.org/ntsb/ERA23LA021.md): Robinson Helicopter R44 · Daytona Beach, FL · Accident · Minor injuries · Class 4 · Limited · Final report · Oct 14, 2022 · N306MB · Substantial damage
  > The pilot’s misjudged landing point which resulted in a loss of control and collision with terrain.
- [NTSB WPR22LA329](https://openairdocs.org/ntsb/WPR22LA329.md): Robinson Helicopter R44 Clipper 1 · Deadhorse, AK · Accident · No injuries · Class 4 · Limited · Final report · Aug 26, 2022 · N240RM · Substantial damage
  > The pilot's failure to maintain helicopter control during a descent, which resulted in a collision with terrain.
- [NTSB GAA19CA124](https://openairdocs.org/ntsb/GAA19CA124.md): Robinson R44 · Santa Maria Island, FL · Accident · Serious injuries · Data collection · Final report · Jan 2, 2019 · N772MG · Substantial damage
  > The pilot's loss of helicopter control while maneuvering at a low altitude after being struck in the head by a bird.
- [NTSB GAA18CA408](https://openairdocs.org/ntsb/GAA18CA408.md): Robinson R44 · Rulo, NE · Accident · No injuries · Data collection · Final report · Jul 10, 2018 · N144DJ · Substantial damage
  > The pilot's improper collective application, which resulted in low rotor rpm during the takeoff climb and a subsequent ground collision. Contributing to the accident was the pilot’s self-induced pressure to complete the operation.
- [NTSB GAA18CA247](https://openairdocs.org/ntsb/GAA18CA247.md): Robinson Helicopter R44 · Sonora, TX · Accident · No injuries · Data collection · Final report · Apr 18, 2018 · N4487D · Substantial damage
  > The pilot’s failure to maintain clearance from trees while maneuvering at a low altitude.
- [NTSB GAA18CA072](https://openairdocs.org/ntsb/GAA18CA072.md): Robinson Helicopter R44 · Fort Pierce, FL · Accident · Minor injuries · Data collection · Final report · Dec 5, 2017 · N99RW · Substantial damage
  > The pilot’s improper landing flare, which resulted in a tail strike and hard landing.
- [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 ERA14CA413](https://openairdocs.org/ntsb/ERA14CA413.md): Robinson Helicopter R44 · Hayesville, NC · Accident · No injuries · Data collection · Final report · Aug 17, 2014 · N752EC · Substantial damage
  > The pilot's failure to maintain control of the helicopter, and adequate clearance, which resulted in a collision with a hangar.
- [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 ERA11CA505](https://openairdocs.org/ntsb/ERA11CA505.md): Robinson Helicopter R44 · Clearwater, FL · Accident · Minor injuries · Data collection · Final report · Sep 27, 2011 · N982DH · Substantial damage
  > The certified flight instructor's delayed remedial action, which resulted in a loss of control and subsequent rollover.
- [NTSB WPR11CA121](https://openairdocs.org/ntsb/WPR11CA121.md): Robinson R44 · Ogden, UT · Accident · No injuries · Data collection · Final report · Feb 4, 2011 · N441TB · Substantial damage
  > The certified flight instructor’s failure to maintain adequate main rotor blade rpm during a practice autorotation, resulting in a hard landing and rollover.
- [NTSB ERA10CA407](https://openairdocs.org/ntsb/ERA10CA407.md): Robinson Helicopter R44 · Aguadilla, PR · Accident · Minor injuries · Data collection · Final report · Aug 8, 2010 · N367JM · Substantial damage
  > The pilot's inadequate preflight performance calculations, which resulted in the overweight helicopter's lack of hover capability out of ground effect.
- [NTSB ERA10CA051](https://openairdocs.org/ntsb/ERA10CA051.md): Robinson Helicopter R44 · Morovis, PR · Accident · Minor injuries · Data collection · Final report · Nov 5, 2009 · N440M · Substantial damage
  > The pilot’s delayed attempt to go around.
- [NTSB WPR09CA339](https://openairdocs.org/ntsb/WPR09CA339.md): Robinson Helicopter R44 · Marysville, CA · Accident · No injuries · Data collection · Final report · Jul 13, 2009 · N244HP · Substantial damage
  > The pilot’s failure to maintain adequate clearance from the power line wires.
- [NTSB SEA08LA104](https://openairdocs.org/ntsb/SEA08LA104.md): Robinson R44 · Pahrump, NV · Accident · No injuries · Limited investigation · Final report · Apr 5, 2008 · N510JM · Substantial damage
  > The loss of the engine to transmission drive train continuity while on approach for undetermined reasons. Contributing to the accident were lack of suitable terrain for a run-on landing, and cars on the race track.

## 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" = '097' 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/097/sequence?model=7640120

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