# NTSB investigations: Robinson Helicopter R44 II

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.

Page 5 of 6 · 291 cases

## Cases, newest first

- [NTSB WPR13FA264](https://openairdocs.org/ntsb/WPR13FA264.md): Robinson Helicopter R44 II · Los Angeles, CA · Accident · Minor injuries · Field investigation · Final report · Jun 6, 2013 · N915BW · Substantial damage
  > The pilot’s loss of helicopter control following a precautionary landing, which resulted in a dynamic rollover.
- [NTSB CEN13FA295](https://openairdocs.org/ntsb/CEN13FA295.md): Robinson Helicopter R44 II · Cross Timbers, MO · Accident · 2 fatal · Field investigation · Final report · May 24, 2013 · N569BC · Destroyed
  > The pilot's failure to see and avoid a power line during the low-altitude flight.
- [NTSB WPR13LA217](https://openairdocs.org/ntsb/WPR13LA217.md): Robinson R44 II · Pomeroy, WA · Accident · No injuries · Limited investigation · Final report · May 2, 2013 · N442RN · Substantial damage
  > The pilot's failure to ensure that the helicopter was properly loaded, which resulted in the helicopter being in excess of its maximum allowable gross weight and led to a loss of main rotor rpm on takeoff. Contributing to the accident were the ground…
- [NTSB CEN13LA228](https://openairdocs.org/ntsb/CEN13LA228.md): Robinson Helicopter R44 II · Buffalo, SD · Accident · No injuries · Limited investigation · Final report · Apr 13, 2013 · N424DP · Substantial damage
  > The pilot’s failure to maintain adequate main rotor rpm while maneuvering at a low altitude in gusting wind conditions, which resulted in an emergency landing on uneven terrain.
- [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 CEN13LA194](https://openairdocs.org/ntsb/CEN13LA194.md): Robinson Helicopter R44 II · Eagle Nest, NM · Accident · No injuries · Limited investigation · Final report · Mar 14, 2013 · N392GP · Substantial damage
  > A total loss of engine power due to a rapid throttle change during autorotation, which the flight instructor initiated in response to a low rotor rpm warning, which resulted from the separation of one of the magnets used to provide rotor rpm indications from…
- [NTSB ERA13LA152](https://openairdocs.org/ntsb/ERA13LA152.md): Robinson Helicopter R44 II · Ciales, PR · Accident · Minor injuries · Limited investigation · Final report · Mar 2, 2013 · N834RC · Destroyed
  > A loss of main rotor rpm for reasons that could not be determined because an examination of the helicopter’s engine and associated components did not reveal any mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB CEN13CA124](https://openairdocs.org/ntsb/CEN13CA124.md): Robinson Helicopter R44 II · Menard, TX · Accident · No injuries · Data collection · Final report · Jan 2, 2013 · N744RM · Substantial damage
  > The helicopter landed hard during a forced landing.
- [NTSB WPR13CA064](https://openairdocs.org/ntsb/WPR13CA064.md): Robinson Helicopter R44 II · Roosevelt Lake, AZ · Accident · Serious injuries · Data collection · Final report · Dec 7, 2012 · N557AC · Substantial damage
  > The pilot's visual disorientation, which resulted in a collision with the lake.
- [NTSB WPR13FA054](https://openairdocs.org/ntsb/WPR13FA054.md): Robinson Helicopter R44 II · Corona, CA · Accident · 1 fatal · Field investigation · Final report · Nov 26, 2012 · N4204A · Substantial damage
  > The pilot's failure to maintain clearance between the helicopter’s main rotor blades and the metal canopy of a fuel island.
- [NTSB CEN13CA053](https://openairdocs.org/ntsb/CEN13CA053.md): Robinson Helicopter R44 II · Bryan, TX · Accident · No injuries · Data collection · Final report · Nov 6, 2012 · N131AA · Substantial damage
  > The pilot’s over-correction in an attempt to stabilize the helicopter during liftoff.
- [NTSB WPR13LA023](https://openairdocs.org/ntsb/WPR13LA023.md): Robinson Helicopter R-44 II · Toutle, WA · Accident · No injuries · Limited investigation · Final report · Oct 26, 2012 · N7530F · Substantial damage
  > The pilot’s failure to maintain precise altitude control, which resulted in the helicopter entering a settling with power condition while hovering out of ground effect.
- [NTSB CEN13FA010](https://openairdocs.org/ntsb/CEN13FA010.md): Robinson Helicopter R44 II · Blanco, TX · Accident · 3 fatal · Field investigation · Final report · Oct 12, 2012 · N474FA · Substantial damage
  > The pilot's loss of helicopter control as a result of spatial disorientation due to dark night conditions and marginal visual flight rules weather conditions.
- [NTSB WPR12CA431](https://openairdocs.org/ntsb/WPR12CA431.md): Robinson Helicopter R44 II · McMinnville, OR · Accident · Minor injuries · Data collection · Final report · Sep 20, 2012 · N74744 · Substantial damage
  > The pilot's aggressive takeoff maneuver, which resulted in a loss of control.
- [NTSB CEN12CA643](https://openairdocs.org/ntsb/CEN12CA643.md): Robinson Helicopter R44 II · Slaton, TX · Accident · No injuries · Data collection · Final report · Sep 18, 2012 · N957R · Substantial damage
  > The pilot’s misalignment of the helicopter during landing, which resulted in the helicopter’s fall from a raised platform.
- [NTSB CEN12LA573](https://openairdocs.org/ntsb/CEN12LA573.md): Robinson Helicopter R44 II · Belgium, WI · Accident · No injuries · Limited investigation · Final report · Aug 10, 2012 · N144DZ · Substantial damage
  > The pilot’s failure to maintain control of the helicopter while landing in gusting wind conditions, which resulted in a hard landing.
- [NTSB ANC12CA082](https://openairdocs.org/ntsb/ANC12CA082.md): Robinson Helicopter R44 II · Wainwright, AK · Accident · Minor injuries · Data collection · Final report · Jul 31, 2012 · N74496 · Substantial damage
  > The failure of ground personnel to ensure the helicopter was serviced with the proper fuel. Contributing to the accident was the pilot's failure to monitor the fueling process.
- [NTSB CEN12LA443](https://openairdocs.org/ntsb/CEN12LA443.md): Robinson Helicopter R44 II · Red Oak, IA · Accident · No injuries · Limited investigation · Final report · Jul 14, 2012 · N556MM · Substantial damage
  > The pilot's failure to maintain clearance from the ground-support vehicle during landing.
- [NTSB WPR12LA267](https://openairdocs.org/ntsb/WPR12LA267.md): Robinson Helicopter R44 II · Scottsdale, AZ · Accident · Minor injuries · Limited investigation · Final report · Jun 17, 2012 · N808WH · Substantial damage
  > The flight instructor’s failure to maintain adequate rotor rpm during a practice autorotation, which resulted in a loss of helicopter control and subsequent hard landing.
- [NTSB WPR12LA259](https://openairdocs.org/ntsb/WPR12LA259.md): Robinson Helicopter R44 II · East Wenatchee, WA · Accident · 1 fatal · Limited investigation · Final report · Jun 12, 2012 · N282MC · Substantial damage
  > The pilot’s failure to adequately monitor the environment and maintain clearance from the power lines while maneuvering at low altitude.
- [NTSB CEN12LA359](https://openairdocs.org/ntsb/CEN12LA359.md): Robinson Helicopter R44 II · Santa Teresa, NM · Accident · No injuries · Limited investigation · Final report · Jun 10, 2012 · N744JS · Substantial damage
  > The sudden decrease in headwind during takeoff in a gusty wind and near a passing train, which resulted in a loss of lift and main rotor rpm. Contributing to the accident was the pilot's decision to operate the helicopter near its maximum performance…
- [NTSB WPR12CA162](https://openairdocs.org/ntsb/WPR12CA162.md): Robinson Helicopter R44 II · Henderson, NV · Accident · No injuries · Data collection · Final report · Apr 9, 2012 · N55NZ · Substantial damage
  > The pilot did not maintain directional and yaw control of the helicopter during approach and landing, which resulted in a dynamic rollover.
- [NTSB ANC12CA018](https://openairdocs.org/ntsb/ANC12CA018.md): Robinson Helicopter R44 II · Beluga, AK · Accident · No injuries · Data collection · Final report · Jan 21, 2012 · N4510T · Substantial damage
  > Ground personnel's movement of cargo in windy conditions, which allowed a previously secured cargo sack to blow into the main rotor blades.
- [NTSB CEN12FA139](https://openairdocs.org/ntsb/CEN12FA139.md): Robinson R44 II · Centerville, LA · Accident · 2 fatal · Field investigation · Final report · Jan 19, 2012 · N369TL · Substantial damage
  > The pilot allowed the helicopter to settle with power while maneuvering at low altitude.
- [NTSB CEN12FA091](https://openairdocs.org/ntsb/CEN12FA091.md): Robinson Helicopter R44 II · Hackensack, MN · Accident · 1 fatal · Field investigation · Final report · Nov 25, 2011 · N821JV · Substantial damage
  > The helicopter's sudden yaw and subsequent impact with the water for reasons that could not be determined during postaccident examination of the helicopter and its systems.
- [NTSB CEN11CA511](https://openairdocs.org/ntsb/CEN11CA511.md): Robinson Helicopter R44 II · Broomfield, CO · Accident · No injuries · Data collection · Final report · Jul 23, 2011 · N915BW · Substantial damage
  > A loss of control due to the pilot's diverted attention as a result of an open door.
- [NTSB CEN11FA468](https://openairdocs.org/ntsb/CEN11FA468.md): Robinson Helicopter R44 II · Rising Sun, IN · Accident · 1 fatal · Field investigation · Final report · Jul 9, 2011 · N42333 · Substantial damage
  > The noninstrument-rated pilot's decision to continue the visual flight rules flight into instrument meteorological conditions, which resulted in his spatial disorientation and failure to maintain clearance from terrain.
- [NTSB CEN11CA325](https://openairdocs.org/ntsb/CEN11CA325.md): Robinson Helicopter R44 II · Golden, CO · Accident · No injuries · Data collection · Final report · May 8, 2011 · N921JM · Substantial damage
  > The pilot’s decision to operate the helicopter at a high density altitude near terrain, which resulted in a settling with power condition.
- [NTSB ERA11FA272](https://openairdocs.org/ntsb/ERA11FA272.md): Robinson Helicopter R44 II · Indiana, PA · Accident · 1 fatal · Field investigation · Final report · May 1, 2011 · N445AB · Substantial damage
  > The pilot's operation of the helicopter at a low-forward airspeed out of ground effect, which resulted in the helicopter’s loss of translational lift and tail rotor authority and the pilot’s subsequent loss of helicopter control.
- [NTSB ERA11CA180](https://openairdocs.org/ntsb/ERA11CA180.md): Robinson Helicopter R44 II · Weston, FL · Accident · Serious injuries · Data collection · Final report · Mar 5, 2011 · N4168W · Substantial damage
  > The pilot's failure to maintain adequate altitude and physical alertness which resulted in an in-flight collision with the water. Contributing to the accident was the pilot's fatigue.
- [NTSB CEN11CA126](https://openairdocs.org/ntsb/CEN11CA126.md): Robinson Helicopter R44 II · Hemphill, TX · Accident · Minor injuries · Data collection · Final report · Dec 22, 2010 · N841SA · Substantial damage
  > The student pilot’s improper decision to carry an unauthorized passenger and the passenger’s loss of control of the helicopter during take-off.
- [NTSB CEN10LA556](https://openairdocs.org/ntsb/CEN10LA556.md): Robinson Helicopter R44 II · Duluth, MN · Accident · Minor injuries · Limited investigation · Final report · Sep 17, 2010 · N145DM · Destroyed
  > The pilot's failure to identify and arrest the helicopter's descent due to spatial disorientation.
- [NTSB WPR10LA458](https://openairdocs.org/ntsb/WPR10LA458.md): Robinson Helicopter R44 II · Mammoth, CA · Accident · Serious injuries · Limited investigation · Final report · Sep 16, 2010 · N2153S · Substantial damage
  > Dynamic rollover of the helicopter during a precautionary landing.
- [NTSB ERA10FA403](https://openairdocs.org/ntsb/ERA10FA403.md): Robinson Helicopter R44 II · Blairsville, GA · Accident · 2 fatal · Field investigation · Final report · Aug 2, 2010 · N34JS · Substantial damage
  > The non-instrument-rated pilot's continued visual flight into instrument meteorological conditions, which resulted in controlled flight into terrain.
- [NTSB CEN10CA417](https://openairdocs.org/ntsb/CEN10CA417.md): Robinson Helicopter R44 II · Shreveport, LA · Accident · No injuries · Data collection · Final report · Jul 19, 2010 · N721BB · Substantial damage
  > The student pilot's failure to maintain control of the helicopter during takeoff, resulting in a loss of tail rotor effectiveness and a subsequent hard landing.
- [NTSB WPR10LA354](https://openairdocs.org/ntsb/WPR10LA354.md): Robinson Helicopter R44 II · Salt Lake City, UT · Accident · 1 fatal · Limited investigation · Final report · Jul 16, 2010 · N944DW · Substantial damage
  > The pilot's loss of directional control while attempting to move the helicopter laterally without first lifting it fully off its landing platform.
- [NTSB CEN10CA369](https://openairdocs.org/ntsb/CEN10CA369.md): Robinson Helicopter R44 II · Austin, TX · Accident · No injuries · Data collection · Final report · Jul 4, 2010 · N74546 · Substantial damage
  > The pilot's failure to maintain directional control of the helicopter, resulting in impact with trees. Contributing to the accident was the pilot's failure to ensure the door was properly secured prior to flight.
- [NTSB ERA10WA133](https://openairdocs.org/ntsb/ERA10WA133.md): Robinson Helicopter R44 II · Restauracion, Dominican Republic, Dominican Republic · Accident · 2 fatal · Foreign investigation · Feb 4, 2010 · N7535F · Destroyed
  > On February 4, 2010, about 1940 Atlantic standard time, a Robinson R44II helicopter, N7535F, impacted the side of Mount Jina Mocha, in the city of Restauracion, Dominican Republic, at night, while en route from Port Au Prince, Haiti to Cibao International…
- [NTSB CEN10CA082](https://openairdocs.org/ntsb/CEN10CA082.md): Robinson Helicopter R44 II · Abilene, TX · Accident · No injuries · Data collection · Final report · Dec 18, 2009 · N442RS · Substantial damage
  > The pilot's failure to maintain directional control during the air taxi with shifting winds.
- [NTSB WPR09CA470](https://openairdocs.org/ntsb/WPR09CA470.md): Robinson Helicopter R44 II · Mt Charleston, NV · Accident · Minor injuries · Data collection · Final report · Sep 28, 2009 · N29LE · Destroyed
  > The pilot's failure to maintain aircraft control and terrain clearance while maneuvering at a low altitude above high terrain. Contributing to the accident was a downdraft and high density altitude.
- [NTSB WPR09LA460](https://openairdocs.org/ntsb/WPR09LA460.md): Robinson Helicopter R44 II · Valley Center, CA · Accident · Serious injuries · Limited investigation · Final report · Sep 20, 2009 · N4174P · Substantial damage
  > The failure of the engine’s camshaft due to fatigue of unknown origin.
- [NTSB ANC09LA098](https://openairdocs.org/ntsb/ANC09LA098.md): Robinson Helicopter R44 II · Central, AK · Accident · No injuries · Limited investigation · Final report · Sep 7, 2009 · N4186Y · Substantial damage
  > The pilot’s failure to maintain control of the helicopter after an in-flight encounter with a downdraft while landing. Contributing to the accident was the pilot’s inadequate evaluation of wind conditions.
- [NTSB WPR09LA411](https://openairdocs.org/ntsb/WPR09LA411.md): Robinson R44 · Tonopah, NV · Accident · Serious injuries · Limited investigation · Final report · Aug 21, 2009 · N19DV · Substantial damage
  > The pilot’s failure to maneuver the helicopter within its performance capabilities while at a low altitude in mountainous terrain and in high density altitude conditions.
- [NTSB ERA09LA421](https://openairdocs.org/ntsb/ERA09LA421.md): Robinson Helicopter R44 II · Dunedin, FL · Accident · No injuries · Limited investigation · Final report · Jul 24, 2009 · N645JC · Substantial damage
  > A partial loss of engine power for undetermined reasons.
- [NTSB ERA09LA410](https://openairdocs.org/ntsb/ERA09LA410.md): Robinson R44 · Silver Spring, PA · Accident · No injuries · Limited investigation · Final report · Jul 19, 2009 · N25VH · Substantial damage
  > The student pilot's inability to fully control the helicopter, during cruise and the resultant off-field hard landing.
- [NTSB WPR09LA312](https://openairdocs.org/ntsb/WPR09LA312.md): Robinson Helicopter R44 II · Lakeport, CA · Accident · No injuries · Limited investigation · Final report · Jun 25, 2009 · N515DG · Substantial damage
  > A loss of engine power while maneuvering for undetermined reasons.
- [NTSB ERA09CA337](https://openairdocs.org/ntsb/ERA09CA337.md): Robinson Helicopter R44 II · Meredith, NH · Accident · No injuries · Data collection · Final report · May 25, 2009 · N47GT · Substantial damage
  > The pilot’s failure to maintain control during landing.
- [NTSB WPR09CA224](https://openairdocs.org/ntsb/WPR09CA224.md): Robinson R44 · Cottonwood, AZ · Accident · No injuries · Data collection · Final report · May 3, 2009 · N441CB · Substantial damage
  > The pilot's inadequate visual lookout and failure to maintain clearance from wires.
- [NTSB CEN09CA270](https://openairdocs.org/ntsb/CEN09CA270.md): Robinson Helicopter R44 II · Kent, TX · Accident · No injuries · Data collection · Final report · Apr 23, 2009 · N518SJ · Substantial damage
  > The pilot's failure to maintain control of the helicopter.
- [NTSB WPR09CA105](https://openairdocs.org/ntsb/WPR09CA105.md): Robinson Helicopter R44 II · Bountiful, UT · Accident · Minor injuries · Data collection · Final report · Feb 1, 2009 · N944U · Substantial damage
  > The pilot's improper decision to fly at low altitude while maneuvering in mountainous terrain in a canyon and inadvertently exceeding the climb capability of the helicopter. Contributing to the accident were a high density altitude, mountainous terrain, and a…

Next page: https://openairdocs.org/ntsb.md?model=7640122&page=6

## 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'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=7640122&page=5

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