NTSB investigations: Robinson Helicopter R44 II
291 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.
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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.\"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."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 WPR09FA076Accident · Serious injuriesField investigationFinal reportRobinson Helicopter R44 II · West Valley City, UTThe pilot’s inadvertent VFR flight into IMC conditions, which resulted in his spatial disorientation and loss of control of the helicopter. Also causal was the flight instructor’s delay in taking remedial action.NTSB CEN09WA074Accident · 1 fatalForeign investigationRobinson Helicopter R44 II · Saint-Marc, HaitiNTSB CHI08FA293Accident · 2 fatalField investigationFinal reportRobinson R44 II · Kenosha, WIThe pilots failure to maintain clearance from terrain resulting in an in-flight collision with a house. Contributing to the accident was the night instrument meteorological conditions (IMC) and the pilot's lack of experience of flying in IMC.NTSB NYC08CA305Accident · No injuriesData collectionFinal reportRobinson R44 II · Marathon, FLThe pilot's failure to control the helicopter while maneuvering, resulting in loss of tail rotor effectiveness.NTSB DFW08FA218Accident · 2 fatalField investigationFinal reportRobinson R44 II · Ridgedale, MOAn in-flight loss of control for undetermined reasons.NTSB DFW08CA177Accident · Minor injuriesData collectionFinal reportRobinson R44 II · Canyon Lake, TXA total loss of tail rotor effectiveness. Contributing to the accident was the pilot's improper decision to operate inside the height velocity curve.NTSB CHI08CA177Accident · No injuriesData collectionFinal reportRobinson R44 II · Ottawa, ILThe pilot's failure to maintain clearance from the power transmission lines. Contributing to the accident was the unmarked power transmission lines.NTSB LAX08LA183Accident · Minor injuriesLimited investigationFinal reportRobinson R44 II · Topanga, CAThe in-flight separation of the tail rotor gear box for an undetermined reason. Contributing to the accident was the hilly terrain, which was unsuitable for a forced landing.NTSB LAX08CA182Accident · Minor injuriesData collectionFinal reportRobinson R44 II · Missoula, MTThe student's inadvertent control interference, which the flight instructor was unable to overcome. A contributing factor was the instructor's poor crew coordination in his failure to verbally command the student to relinquish the controls and his inadequate…NTSB NYC08TA183Accident · Minor injuriesFinal reportRobinson R44 II · Lake Wales, FLThe pilot's improper recovery from a practice autorotation.NTSB DFW08LA122Accident · 1 fatalLimited investigationFinal reportRobinson R44 · Bartlett, TXThe pilot's failure to maintain tail rotor clearance from terrain (embankment) during takeoff.NTSB DFW08TA092Accident · No injuriesFinal reportRobinson R44 · Topeka, KSA malfunctioning magneto, resulting in a high engine rpm and low rotor warning indications. A contributing factor was the impact with a light pole, during the precautionary landing.NTSB NYC08CA140Accident · No injuriesData collectionFinal reportRobinson R44 · Montgomery, NYThe pilot's loss of control during takeoff.NTSB LAX08CA057Accident · No injuriesData collectionFinal reportRobinson R44 II · Bullhead City, AZThe pilot's misjudged landing flare, inadequate bounced landing recovery, and failure to maintain directional control during a bounced landing that resulted in the tail rotor blades colliding with a hangar. Contributing to the accident was the burned out…NTSB NYC08CA083Accident · Minor injuriesData collectionFinal reportRobinson R44 II · Fenner, NYThe pilot's delayed decision to perform a precautionary landing. Contributing to the accident was the reduced visibility in snow and the soft terrain.NTSB DEN08CA016Accident · No injuriesData collectionFinal reportRobinson R-44 II · Cleveland, GAthe student pilot's failure to maintain control of the helicopter during the landing, resulting in substantial damage to the helicopter. Contributing to the accident was the windy conditions.NTSB CHI08CA023Accident · No injuriesData collectionFinal reportRobinson R44 Raven II · Morrison, MOLoss of control on the ground due to aircraft control not being maintained by the pilot. Contributing factors were the gusting winds and the uneven ground.NTSB SEA08CA002Accident · Minor injuriesData collectionFinal reportRobinson R44 II · Lake Powell, UTThe pilot's inadequate preflight inspection and failure to remove a tie-down strap before departure.NTSB NYC07CA236Accident · No injuriesData collectionFinal reportRobinson R44 II · Nashville, TNThe pilot's failure to maintain control of the helicopter.NTSB SEA07FA223Accident · 4 fatalField investigationFinal reportRobinson R44 II · Easton, WAThe pilot's improper planning/decision in attempting a downwind takeoff under high density altitude conditions that resulted in a loss of control and impact with terrain. Contributing to the accident were the helicopter's gross weight in excess of the maximum…NTSB CHI07FA114Accident · 2 fatalField investigationFinal reportRobinson Helicopter R44 II · Bass Lake, INThe pilot's failure to maintain a proper approach glidepath, which resulted in a settling-with-power flight condition. Contributing to the accident was the dark night light condition.NTSB DEN07FA079Accident · 2 fatalField investigationFinal reportRobinson R44 II · Ponte Vedra Bch, FLthe mechanic's improper installation of the attachment hardware for the servo to swashplate push-pull tube joint which resulted in a disconnection, subsequent loss of control, and impact with terrain. Contributing factors were the company management's…NTSB MIA07CA107Accident · No injuriesData collectionFinal reportRobinson R-44-II · Isla Grande, PRThe pilot's inadvertent encounter with a loss of tail rotor effectiveness which resulted in damage to the helicopter during the subsequent hard landing.NTSB MIA07LA059Accident · No injuriesLimited investigationFinal reportRobinson R-44-II · Miami, FLThe pilot's failure to maintain sufficient rotor rpm during an autorotative landing, which resulted in a hard landing and separation of the tailboom.NTSB ATL07CA046Accident · Serious injuriesData collectionFinal reportRobinson R-44 · Covington, GAThe student pilot's failure to maintain control of the helicopter during liftoff, which resulted in an in-flight collision with the ground.NTSB SEA06FA159Accident · 3 fatalField investigationFinal reportRobinson R44 II · Warrenton, ORThe pilot's intentional flight into instrument meteorological conditions while maneuvering which resulted in an in flight collision with terrain/water.NTSB LAX06LA247Accident · Minor injuriesLimited investigationFinal reportRobinson R44 · Flagstaff, AZthe pilot's inadequate preflight planning decision to take off under a low ceiling into an area of mountainous terrain that resulted in an encounter with lowering clouds and forced the pilot to land in unfavorable terrain.NTSB ANC06LA064Accident · No injuriesLimited investigationFinal reportRobinson R44 · Skwentna, AKThe pilot's improper rigging of the external sling load, which allowed the suspended load/cargo cable to entangle and disable the tail rotor control, resulting in a loss of control during cruise and an in-flight collision with terrain.NTSB ATL06CA073Accident · No injuriesData collectionFinal reportRobinson R44 Raven II · Rocky Point, NCThe pilot's inadequate visual lookout during a precautionary landing which resulted in an in-flight collision with a transmission wire.NTSB DFW06FA102Accident · 2 fatalField investigationFinal reportRobinson R44 II · Fredericksburg, TXThe pilot's failure to maintain clearance with the power lines. Contributing factors were the dusk light condition and the pilot's non-compliance with standard taxi and takeoff procedures.NTSB ANC06LA025Accident · No injuriesLimited investigationFinal reportRobinson R44 · Ilimana, AKThe pilot's continued flight into adverse weather conditions, and his spatial disorientation and loss of control during a subsequent landing attempt. Factors associated with the accident are flat light and whiteout conditions, fog, and snow-covered terrain.NTSB LAX06FA104Accident · 1 fatalField investigationFinal reportRobinson R44 II · Minden, NVThe divergence of the main rotor from its normal plane of rotation for an undetermined reason, which resulted in main rotor/tail boom contact and loss of control.NTSB DFW05CA250Accident · No injuriesData collectionFinal reportRobinson R44 · Batesville, TXThe pilot's failure to maintain rotor rpm and his subsequent encounter with settling with power.NTSB DEN05CA138Accident · No injuriesData collectionFinal reportRobinson R44 II · Jackson, WYthe pilot's failure to maintain aircraft control during initial takeoff climb resulting in an uncontrolled descent and impact with terrain. A contributing factor was the pilot's encounter in settling with power.NTSB DEN05CA097Accident · No injuriesData collectionFinal reportRobinson R44 II · Indianola, UTThe pilot's failure to maintain adequate rotor rpm which resulted in a loss of control and a hard landing.NTSB DFW05CA072Accident · No injuriesData collectionFinal reportRobinson R44 II · Woodward, OKthe pilot's encounter with adverse weather conditions.NTSB SEA05WA031Accident · 1 fatalForeign investigationRobinson R-44 II · Fairmont Hot Sp, CanadaNTSB ATL04LA155Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R44 II · Goldsboro, NCThe pilot's failure to obtain the proper touchdown point during landing on a helipad with an exposed edge, which resulted in an in-flight collision with terrain.NTSB NYC04CA166Accident · No injuriesData collectionFinal reportRobinson R-44 II · Beverly, MAThe pilot's inadequate visual lookout, which resulted in a collision with transmission wires.NTSB CHI03FA181Accident · 3 fatalField investigationFinal reportRobinson R44 II · Coleta, ILThe pilot not maintaining main rotor RPM during cruise flight. The factor in the two passenger's fatal injuries was the pilot not following directives concerning the prohibition of carrying passengers while a student pilot. Other factors were the pilot's use…NTSB LAX03LA123Accident · No injuriesLimited investigationFinal reportRobinson R-44 II · Willcox, AZThe failure of the alternator belt which resulted in the failure of the main drive belt.