# 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 2 of 6 · 291 cases

## Cases, newest first

- [NTSB CEN23FA125](https://openairdocs.org/ntsb/CEN23FA125.md): Robinson Helicopter R44 · Port O'Connor, TX · Accident · 2 fatal · Class 3 · Field · Final report · Mar 7, 2023 · N494SH · Destroyed
  > The pilot’s initiation of the visual flight into instrument meteorological conditions, which resulted in spatial disorientation and a subsequent loss of helicopter control. Contributing to the accident was the pilot’s flicker vertigo during the flight.
- [NTSB GAA22WA311](https://openairdocs.org/ntsb/GAA22WA311.md): Robinson Helicopter R44 II · Kildare, Ireland · Accident · 1 fatal · Class 5 · Foreign · Dec 11, 2022 · N999RL · Destroyed
- [NTSB CEN22LA400](https://openairdocs.org/ntsb/CEN22LA400.md): Robinson Helicopter R44 II · San Isidro, TX · Accident · Serious injuries · Class 4 · Limited · Final report · Aug 21, 2022 · N4447A · Substantial damage
  > The pilot’s improper decision to conduct an autorotation with a tailwind, which resulted in a hard landing and substantial damage.
- [NTSB WPR22LA299](https://openairdocs.org/ntsb/WPR22LA299.md): Robinson Helicopter R44 II · Palmer, AK · Accident · Minor injuries · Class 4 · Limited · Final report · Aug 11, 2022 · N987WH · Substantial damage
  > The pilot’s failure to maintain lateral control during an off-field landing, which resulted in loss of control and an impact with terrain.
- [NTSB CEN22LA366](https://openairdocs.org/ntsb/CEN22LA366.md): Robinson Helicopter R44 II · Maynard, IA · Accident · No injuries · Class 4 · Limited · Final report · Aug 5, 2022 · N619RB · Substantial damage
  > An impact with a powerline as a result of an unexpected wind gust.
- [NTSB CEN22LA350](https://openairdocs.org/ntsb/CEN22LA350.md): Robinson Helicopter R44 II · Marshall, MO · Accident · No injuries · Class 4 · Limited · Final report · Jul 31, 2022 · N458SG · Substantial damage
  > The pilot’s failure to adequately survey a field for obstructions prior to a low-level aerial application pass, which resulted in an impact with a powerline.
- [NTSB CEN22LA345](https://openairdocs.org/ntsb/CEN22LA345.md): Robinson Helicopter R44 II · Ithaca, NE · Accident · No injuries · Class 4 · Limited · Final report · Jul 28, 2022 · N719TF · Substantial damage
  > The pilot’s failure to maintain clearance from power lines during low level aerial application operations due to a distraction.
- [NTSB WPR22LA267](https://openairdocs.org/ntsb/WPR22LA267.md): Robinson Helicopter R44 II · Cedar City, UT · Accident · Minor injuries · Class 4 · Limited · Final report · Jul 25, 2022 · N497SU · Substantial damage
  > The student pilot’s failure to maintain rotor rpm and airspeed and the flight instructor's inadequate remedial action to regain helicopter control during the straight-in autorotation which resulted in a hard landing.
- [NTSB CEN22LA333](https://openairdocs.org/ntsb/CEN22LA333.md): Robinson Helicopter R44 II · Waterloo, IL · Accident · No injuries · Class 3 · Limited · Final report · Jul 22, 2022 · N442JE · Substantial damage
  > The malfunction of the flight controls for undetermined reasons.
- [NTSB CEN22FA288](https://openairdocs.org/ntsb/CEN22FA288.md): Robinson Helicopter R44 II · Blackwell, TX · Accident · 1 fatal · Class 3 · Field · Final report · Jun 26, 2022 · N4124D · Destroyed
  > The pilot’s failure to maintain proper altitude and clearance during low-level aerial application, resulting in an in-flight collision with power lines.
- [NTSB WPR22LA220](https://openairdocs.org/ntsb/WPR22LA220.md): Robinson Helicopter R44 II · Auburn, WA · Accident · Minor injuries · Class 4 · Limited · Final report · Jun 18, 2022 · N944BC · Substantial damage
  > The student pilot’s loss of helicopter control and the flight instructor’s delayed remedial action while providing hover training which resulted in a dynamic rollover.
- [NTSB ERA22LA236](https://openairdocs.org/ntsb/ERA22LA236.md): Robinson Helicopter R44 II · Nashua, NH · Accident · Minor injuries · Class 4 · Limited · Final report · May 23, 2022 · N666U · Substantial damage
  > The flight instructor’s failure to maintain control of the helicopter during the takeoff, which resulted in a dynamic rollover.
- [NTSB WPR22LA157](https://openairdocs.org/ntsb/WPR22LA157.md): Robinson Helicopter R44 II · Salt Lake City, UT · Accident · No injuries · Class 4 · Limited · Final report · Apr 16, 2022 · N3297Q · Substantial damage
  > The student pilot’s failure to maintain lateral control and terrain clearance while hovering, and the flight instructor’s delayed remedial action which resulted in a dynamic rollover.
- [NTSB ERA22LA188](https://openairdocs.org/ntsb/ERA22LA188.md): Robinson Helicopter R44 II · Calhoun, GA · Accident · Minor injuries · Class 4 · Limited · Final report · Apr 12, 2022 · N426DB · Substantial damage
  > The pilot’s failure to maintain clearance from wires during takeoff.
- [NTSB WPR22LA132](https://openairdocs.org/ntsb/WPR22LA132.md): Robinson Helicopter R44 II · Howe, ID · Accident · Minor injuries · Class 4 · Limited · Final report · Mar 22, 2022 · N44DQ · Substantial damage
  > The pilot’s failure to maintain adequate rotor rpm while descending with a gusting tailwind condition, which resulted in a loss of helicopter control.
- [NTSB ERA22LA135](https://openairdocs.org/ntsb/ERA22LA135.md): Robinson Helicopter R44 II · White Plains, NY · Accident · No injuries · Class 4 · Limited · Final report · Feb 17, 2022 · N929WA · Substantial damage
  > The pilot’s failure to maintain stabilized lateral control during landing in gusty conditions which resulted in a dynamic rollover when the skids contacted the platform unevenly.
- [NTSB ERA22FA098](https://openairdocs.org/ntsb/ERA22FA098.md): Robinson Helicopter R44 II · Bronson, FL · Accident · 4 fatal · Class 3 · Field · Final report · Dec 31, 2021 · N442VB · Destroyed
  > A loss of control due to spatial disorientation as a result of the noninstrument-rated pilot’s improper decision to attempt a visual flight rules flight at night into an area of known reduced visibility due to fog.
- [NTSB ERA22FA096](https://openairdocs.org/ntsb/ERA22FA096.md): Robinson Helicopter R44 II · Cosby, TN · Accident · 1 fatal · Class 3 · Field · Final report · Dec 29, 2021 · N544SC · Substantial damage
  > The pilot’s intentional, continued flight into instrument meteorological conditions in a helicopter that was not certified for instrument conditions, which resulted in a loss of helicopter control and a collision with trees and terrain.
- [NTSB CEN22LA034](https://openairdocs.org/ntsb/CEN22LA034.md): Robinson Helicopter R44 II · Fort Davis, TX · Accident · Minor injuries · Class 4 · Limited · Final report · Nov 10, 2021 · N3027W · Substantial damage
  > The pilot’s encounter of a downdraft from which there was insufficient altitude to recover.
- [NTSB ERA22FA010](https://openairdocs.org/ntsb/ERA22FA010.md): Robinson Helicopter R44 II · Cornwall, NY · Accident · 1 fatal · Class 3 · Field · Final report · Oct 10, 2021 · N637HP · Destroyed
  > The non-instrument-rated pilot’s continued flight into deteriorating weather conditions, which resulted in a loss of control due to spatial disorientation.
- [NTSB ANC22LA001](https://openairdocs.org/ntsb/ANC22LA001.md): Robinson Helicopter R44 II · Palmer, AK · Accident · No injuries · Class 4 · Limited · Final report · Oct 10, 2021 · N555EL · 2 aircraft · Substantial damage
  > The unmanned aircraft pilot’s failure to yield the right of way to the helicopter.
- [NTSB WPR21LA359](https://openairdocs.org/ntsb/WPR21LA359.md): Robinson Helicopter R44 II · Phoenix, AZ · Accident · Minor injuries · Class 4 · Limited · Final report · Sep 30, 2021 · N74706 · Substantial damage
  > The student pilot's failure to maintain helicopter control while making a clearing turn which resulted in a hard landing.
- [NTSB ERA21LA387](https://openairdocs.org/ntsb/ERA21LA387.md): Robinson Helicopter R44 II · Miami, FL · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 28, 2021 · N212HT · Substantial damage
  > The pilot’s loss of helicopter control after landing. Also causal was the pilot’s intentional operation of the helicopter without the required training, experience, and endorsements.
- [NTSB ANC21LA080](https://openairdocs.org/ntsb/ANC21LA080.md): Robinson Helicopter R44 II · Pelican, AK · Accident · No injuries · Class 4 · Limited · Final report · Aug 31, 2021 · N779DZ · Substantial damage
  > The pilot’s loss of control while landing on a remote helipad.
- [NTSB ANC21LA079](https://openairdocs.org/ntsb/ANC21LA079.md): Robinson Helicopter R44 II · Pelican, AK · Accident · No injuries · Class 4 · Limited · Final report · Aug 30, 2021 · N878CB · Substantial damage
  > The pilot’s improper preflight planning to ensure adequate power to hover out-of-ground effect while conducting external load operations.
- [NTSB WPR21LA341](https://openairdocs.org/ntsb/WPR21LA341.md): Robinson R44 · Camp Verde, AZ · Accident · No injuries · Class 4 · Limited · Final report · Aug 28, 2021 · N544SH · Substantial damage
  > The pilot's inadequate preflight performance calculations which resulted in an aborted takeoff and collision with trees.
- [NTSB CEN21LA378](https://openairdocs.org/ntsb/CEN21LA378.md): Robinson Helicopter R44 II · Gonzales, LA · Accident · No injuries · Class 4 · Limited · Final report · Aug 21, 2021 · N222VB · Substantial damage
  > The pilot’s inadvertent collision with a tree while landing at night which resulted in a hard landing.
- [NTSB CEN21LA385](https://openairdocs.org/ntsb/CEN21LA385.md): Robinson Helicopter R44 II · New Roads, LA · Accident · No injuries · Class 4 · Limited · Final report · Aug 20, 2021 · N744RB · Destroyed
  > A loss of engine power for reasons that could not be determined due to a lack of available evidence.
- [NTSB CEN21LA369](https://openairdocs.org/ntsb/CEN21LA369.md): Robinson Helicopter R44 II · Wheeling, IL · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 11, 2021 · N4043B · Substantial damage
  > A partial loss of engine power for reasons that could not be determined based on available information.
- [NTSB CEN21LA349](https://openairdocs.org/ntsb/CEN21LA349.md): Robinson Helicopter R44 II · Randolph, WI · Accident · Serious injuries · Class 4 · Limited · Final report · Jul 31, 2021 · N285RG · Substantial damage
  > The pilot’s failure to maintain clearance from power lines during a low-level aerial application flight.
- [NTSB CEN21LA339](https://openairdocs.org/ntsb/CEN21LA339.md): Robinson Helicopter R44 II · West Liberty, IA · Accident · Minor injuries · Class 4 · Limited · Final report · Jul 20, 2021 · N983HA · Substantial damage
  > The pilot’s failure to see and avoid a wire while maneuvering at low altitude during an aerial application flight, resulting in a collision with the wire.
- [NTSB ERA21LA295](https://openairdocs.org/ntsb/ERA21LA295.md): Robinson Helicopter R44 II · Point Harbor, NC · Accident · 2 fatal · Class 3 · Limited · Final report · Jul 19, 2021 · N4529J · Destroyed
  > The noncertificated pilot’s decision to continue visual flight rules flight into instrument meteorological conditions, which resulted in spatial disorientation over a large body of water and a high velocity impact with the water. Contributing to the accident…
- [NTSB CEN21FA330](https://openairdocs.org/ntsb/CEN21FA330.md): Robinson R44 · Elgin, MN · Accident · 1 fatal · Class 3 · Field · Final report · Jul 19, 2021 · N44BJ · Destroyed
  > The pilot’s decision to operate the helicopter under powerlines, which resulted in a main rotor blade striking a powerline, causing the helicopter to descend from a low altitude and impact terrain.
- [NTSB ERA21LA292](https://openairdocs.org/ntsb/ERA21LA292.md): Robinson Helicopter R44 II · Princeton, KY · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 16, 2021 · N512RT · Substantial damage
  > The pilot’s inadequate preflight planning in that he failed to accurately determine the takeoff weight of the helicopter, which resulted in exceeding the helicopter’s maximum weight capability.
- [NTSB ERA21LA252](https://openairdocs.org/ntsb/ERA21LA252.md): Robinson Helicopter R44 II · Sylva, NC · Accident · No injuries · Class 4 · Limited · Final report · Jun 14, 2021 · N443SH · Substantial damage
  > The pilot’s intentional departure from the procedures published in the manufacturer’s flight training guide, and his subsequent loss of engine rpm, rotor rpm, and aircraft control.
- [NTSB CEN21LA284](https://openairdocs.org/ntsb/CEN21LA284.md): Robinson Helicopter R44 II · Reserve, LA · Accident · No injuries · Class 3 · Limited · Final report · Jun 10, 2021 · N202SM · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB CEN21LA173](https://openairdocs.org/ntsb/CEN21LA173.md): Robinson Helicopter R44 II · Dustin, OK · Accident · Serious injuries · Class 3 · Limited · Final report · Mar 26, 2021 · N178DF · Substantial damage
  > The pilot’s insufficient monitoring of the helicopter’s power while flying at low altitude and at low airspeed, which resulted in the loss of rotor rpm and impact with a tree and terrain.
- [NTSB GAA21WA047](https://openairdocs.org/ntsb/GAA21WA047.md): Robinson Helicopter R44 II · Rosh Pinna, Israel · Accident · Minor injuries · Class 5 · Foreign · Mar 13, 2021 · N97KC · Substantial damage
- [NTSB CEN21LA109](https://openairdocs.org/ntsb/CEN21LA109.md): Robinson Helicopter R44 II · Albany, TX · Accident · No injuries · Class 3 · Limited · Final report · Jan 9, 2021 · N322SH · Substantial damage
  > The pilot’s inadequate pretakeoff checks which resulted in the magneto switch (key) remaining in the OFF position during the takeoff sequence and initial climb and the right magneto grounding intermittently.
- [NTSB CEN21LA077](https://openairdocs.org/ntsb/CEN21LA077.md): Robinson Helicopter R44 II · Marietta, TX · Accident · No injuries · Class 4 · Limited · Final report · Dec 5, 2020 · N371MP · Substantial damage
  > The pilot’s failure to see and avoid a transmission wire during takeoff.
- [NTSB ERA21LA046](https://openairdocs.org/ntsb/ERA21LA046.md): Robinson R44 · Austell, GA · Accident · No injuries · Class 4 · Limited · Final report · Nov 18, 2020 · N442JP · Substantial damage
  > The flight instructor’s failure to maintain adequate clearance above the gravel surface in a hover, which resulted in a dynamic rollover.
- [NTSB CEN21LA021](https://openairdocs.org/ntsb/CEN21LA021.md): Robinson Helicopter R44 II · Washington, WI · Accident · No injuries · Class 4 · Limited · Final report · Oct 18, 2020 · N31136 · Substantial damage
  > The pilot’s failure to maintain lateral control during a hover and improper recovery action after the helicopter contacted the ground, which resulted in a dynamic rollover sequence and an impact with terrain.
- [NTSB CEN20LA330](https://openairdocs.org/ntsb/CEN20LA330.md): Robinson R44 · Logan, IA · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 8, 2020 · N89LA · Substantial damage
  > The failure of the lower actuator bearing support brackets, which resulted in the misalignment of the clutch actuator, a loss of belt tension on the main rotor drive system, and a subsequent forced landing.
- [NTSB ANC20CA068](https://openairdocs.org/ntsb/ANC20CA068.md): Robinson R44 · Ketchikan, AK · Accident · No injuries · Class 4 · Data collection · Final report · Jul 10, 2020 · N878CB · Substantial damage
  > The crew leader's decision to throw a chainsaw bar into the moving arc of the main rotor blade.
- [NTSB WPR20CA197](https://openairdocs.org/ntsb/WPR20CA197.md): Robinson R44 · Pioche, NV · Accident · No injuries · Class 4 · Data collection · Final report · Jun 28, 2020 · N7530B · Substantial damage
  > The pilot’s decision to fly at low level over mountainous terrain and his inability to recover when the helicopter encountered a downdraft that resulted in a collision with terrain.
- [NTSB WPR20LA119](https://openairdocs.org/ntsb/WPR20LA119.md): Robinson R44 · Hillsboro, OR · Accident · No injuries · Class 3 · Limited · Final report · Apr 6, 2020 · N725GT · Substantial damage
  > The total loss of engine power during takeoff due to the delamination of the fuel servo induction air inlet duct tube.
- [NTSB CEN20LA136](https://openairdocs.org/ntsb/CEN20LA136.md): Robinson Helicopter R44 II · Audubon, IA · Accident · 2 fatal · Class 3 · Limited · Final report · Mar 31, 2020 · N107EH · Destroyed
  > The pilot’s failure to recognize and avoid the power line during the low-altitude flight. Contributing to the accident was the pilot’s fatigue, which affected the pilot’s ability to see and avoid the power line.
- [NTSB CEN20LA442](https://openairdocs.org/ntsb/CEN20LA442.md): Robinson Helicopter R44 II · Sterling City, TX · Accident · No injuries · Class 4 · Limited · Final report · Mar 12, 2020 · N4386W · Substantial damage
  > The pilot’s failure to maintain clearance from power lines during an aerial application flight.
- [NTSB ANC20CA023](https://openairdocs.org/ntsb/ANC20CA023.md): Robinson R44 · Talkeetna, AK · Accident · Minor injuries · Class 4 · Data collection · Final report · Feb 21, 2020 · N716JL · Substantial damage
  > The pilot's failure to maintain adequate clearance from snow covered terrain during an en route descent in flat light conditions, which resulted in controlled flight into terrain.
- [NTSB CEN20CA085](https://openairdocs.org/ntsb/CEN20CA085.md): Robinson R44 · Marfa, TX · Accident · No injuries · Data collection · Final report · Feb 14, 2020 · N441KA · Substantial damage
  > The pilot's failure to maintain clearance from a fence during low-altitude maneuvering.

Next page: https://openairdocs.org/ntsb.md?model=7640122&page=3

## 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=2

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