Final NTSB investigations: Robinson Helicopter R44 II
276 cases on aircraft the registry lists as Robinson Helicopter R44 II. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.
Cases per year
| 2003 | 2 |
|---|---|
| 2004 | 2 |
| 2005 | 4 |
| 2006 | 7 |
| 2007 | 10 |
| 2008 | 13 |
| 2009 | 13 |
| 2010 | 7 |
| 2011 | 6 |
| 2012 | 16 |
| 2013 | 15 |
| 2014 | 15 |
| 2015 | 15 |
| 2016 | 10 |
| 2017 | 19 |
| 2018 | 15 |
| 2019 | 18 |
| 2020 | 11 |
| 2021 | 22 |
| 2022 | 14 |
| 2023 | 12 |
| 2024 | 13 |
| 2025 | 12 |
| 2026 | 5 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "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.\"completionStatus\" = 'Completed'
AND 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"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
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."completionStatus" = 'Completed'
AND 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" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB CEN26LA317Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Natchez, MSThe pilot’s failure to complete a preflight weight and balance calculation, which resulted in a center of gravity beyond the forward limit, and adversely affected the helicopter’s controllability during takeoff.NTSB CEN26LA256Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Coralville, IAThe pilot’s failure to maintain clearance from a power line during a low-level aerial application flight.NTSB CEN26LA168Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 · Mount Blanco, TXThe pilot’s failure to maintain proper main rotor rpm during a low-level turn, which resulted in the main rotor rpm drooping, a loss of control at an altitude too low for recovery, and a subsequent impact with terrain.NTSB CEN26LA101Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Sullivan, MOThe pilot’s failure to maintain clearance from powerlines during low-level operations.NTSB WPR26LA083Accident · No injuriesClass 4 · LimitedFinal reportRobinson R44 · Parkman, WYThe pilots’ failure to maintain separation while conducting air work in a common operational area. Contributing to the accident was the pilots’ divided attention associated with the mission activity and unreliable radio communications.NTSB CEN25LA359Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Nashville, ARThe pilot’s inadequate fuel planning which resulted in a total loss of power due to fuel exhaustion. Contributing to the accident was the landing zone being unlit.NTSB ANC25LA099Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Petersville, AKThe pilot’s exceedance of the helicopter’s available power while landing in a remote confined area, which resulted in rotor droop and a hard landing.NTSB WPR25LA262Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Burlington, WAThe pilot’s failure to see and avoid the light pole, which resulted in a collision with the light pole and subsequent ground impact.NTSB WPR25LA239Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Ponderosa Pines, MTThe pilot’s improper pedal application during an approach to a hover.NTSB ERA25LA267Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Inlet, NYThe pilot’s failure to maintain control of the helicopter during the landing.NTSB CEN25LA237Accident · Serious injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Pecos, TXThe pilot’s failure to maintain aircraft control during gusty wind conditions.NTSB ANC25LA064Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Palmer, AKThe pilot’s diverted attention during takeoff in flat light conditions, which resulted in a loss of visual reference with terrain.NTSB ERA25LA240Accident · Serious injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Hawesville, KYThe pilot’s failure to maintain clearance from power lines during low-level agricultural spray operations.NTSB WPR25LA118Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Hobbs, NMThe student pilot’s loss of directional control during a hover, which resulted in an impact with terrain.NTSB WPR25LA110Accident · Minor injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Las Vegas, NVThe pilot’s loss of helicopter control after the door opened during takeoff. Contributing to the accident was the pilot’s failure to confirm that the door was properly closed before departure.NTSB CEN25LA105Accident · Serious injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Edgemont, SDThe pilot’s failure to properly identify the proper anchor point for the supplemental harness and the crew’s incorrect use of the restraint system structure as an anchor point, which resulted in the separation of the structure.NTSB CEN25LA073Accident · Serious injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Buras, LAThe pilot’s failure to maintain control during a hover taxi with a quartering tailwind.NTSB WPR25LA034Accident · No injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Durkee, ORThe pilot's inadequate performance planning, which resulted in insufficient engine power to transition into an out-of-ground-effect hover at a high gross weight.NTSB CEN25FA019Accident · 4 fatalClass 2 · FieldFinal reportRobinson R44 · Houston, TXThe pilot’s failure to maintain clearance from a lighted radio tower during a visual night flight. Contributing to the accident was the air traffic controller’s failure to issue a safety alert notifying the pilot of the flight’s unsafe proximity to the tower.NTSB ERA24LA393Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Ravenel, SCThe pilot’s failure to maintain clearance from terrain, which resulted in the right skid contacting the ground and a subsequent rollover.NTSB WPR24LA307Accident · Serious injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Basin, MTThe pilot’s decision to continue performing a high-performance takeoff in a full throttle and low-rotor-rpm condition, which resulted in a loss of control and subsequent impact with terrain.NTSB ANC24LA079Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Palmer, AKThe pilot's failure to follow the operator’s procedure manual and attempted to land at a remote landing zone in high wind conditions. Contributing factor was the pilot’s decision to not conduct a fly over of the landing site to determine wind condition which…NTSB WPR24LA241Accident · No injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Herriman, UTA hard landing following a total loss of engine power due to fuel starvation as a result of the improper idle setting of the helicopter’s engine. Contributing to the loss of engine power was the instructor’s reduction of engine power past that recommended by…NTSB CEN24LA252Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · New Florence, MOThe pilot’s failure to maintain proper altitude/clearance from a dead tree limb during an aerial application flight.NTSB WPR24FA200Accident · 2 fatalClass 3 · FieldFinal reportRobinson Helicopter R44 II · Bluestem, WAThe pilot’s failure to manage main rotor rpm during an autorotation, which resulted in a loss of helicopter control. Contributing to the accident was a loss of power for reasons that could not be determined.NTSB ERA24LA236Accident · No injuriesClass 4 · LimitedFinal reportRobinson R44 · Gilbertsville, KYThe pilot's failure to maintain control of the helicopter while attempting to take off from sloping terrain.NTSB ERA24LA171Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · South Kingstown, RIThe pilot’s failure to maintain clearance from the water while maneuvering at low altitude.NTSB ANC24LA013Accident · No injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Glacier View, AKA sudden stoppage of the tail rotor for unknown reasons, which resulted in the tortional overload failure of the tail rotor driveshaft.NTSB CEN24LA112Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Tupelo, MSThe pilot’s failure to maintain clearance from water during a dark night landing.NTSB ERA24LA118Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Miami, FLTail rotor contact with an unseen object while performing a precautionary landing to a closed helipad at night.NTSB WPR24LA092Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Calexico, CAThe pilot's failure to maintain clearance from power lines during an aerial application flight.NTSB ERA24LA042Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Ogdensburg, NYThe loss of control of the helicopter during taxi, which resulted in rollover.NTSB CEN23LA341Accident · Serious injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Arthur, ILThe pilot’s failure to maintain clearance from trees during a low-level aerial application flight.NTSB CEN23LA326Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Charles City, IAThe pilot’s improper preflight of the helicopter to ensure that it was within the loading and performance limitations that resulted in settling and impact with terrain during initial climb.NTSB CEN23LA306Accident · No injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Pocahontas, ILA reported loss of engine power for undetermined reasons.NTSB WPR23LA263Accident · No injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Marble Falls, TXA total loss of engine power due to fuel contamination from an unknown source.NTSB ERA23LA228Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Bradenton, FLThe pilot’s failure to maintain adequate rotor rpm during landing which resulted in a premature landing on uneven ground and a subsequent rollover.NTSB ANC23LA032Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Skwentna, AKThe pilot's failure to maintain adequate altitude/clearance from terrain while maneuvering in adverse weather conditions, which resulted in a dynamic rollover.NTSB WPR23LA170Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Van Nuys, CAThe pilot’s failure to maintain lateral control of the helicopter, which resulted in a hard landing.NTSB WPR23LA145Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Elko, NVThe pilot’s failure to maintain sufficient altitude and airspeed in gusting tailwind conditions that resulted in an unrecoverable descent and impact with terrain.NTSB CEN23FA142Accident · 2 fatalClass 3 · FieldFinal reportRobinson Helicopter R44 II · Port Allen, LAThe pilot’s decision to continue the visual flight rules flight into deteriorating weather conditions, which resulted in spatial disorientation and the loss of aircraft control.NTSB CEN23FA125Accident · 2 fatalClass 3 · FieldFinal reportRobinson Helicopter R44 · Port O'Connor, TXThe 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 CEN22LA400Accident · Serious injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · San Isidro, TXThe pilot’s improper decision to conduct an autorotation with a tailwind, which resulted in a hard landing and substantial damage.NTSB WPR22LA299Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Palmer, AKThe pilot’s failure to maintain lateral control during an off-field landing, which resulted in loss of control and an impact with terrain.NTSB CEN22LA366Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Maynard, IAAn impact with a powerline as a result of an unexpected wind gust.NTSB CEN22LA350Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Marshall, MOThe 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 CEN22LA345Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Ithaca, NEThe pilot’s failure to maintain clearance from power lines during low level aerial application operations due to a distraction.NTSB WPR22LA267Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Cedar City, UTThe 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 CEN22LA333Accident · No injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Waterloo, ILThe malfunction of the flight controls for undetermined reasons.NTSB CEN22FA288Accident · 1 fatalClass 3 · FieldFinal reportRobinson Helicopter R44 II · Blackwell, TXThe pilot’s failure to maintain proper altitude and clearance during low-level aerial application, resulting in an in-flight collision with power lines.