NTSB investigations: Robinson Helicopter R44 II
12 cases on aircraft the registry lists as Robinson Helicopter R44 II, where the defining event was Hard landing. 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
| 2008 | 1 |
|---|---|
| 2012 | 1 |
| 2013 | 2 |
| 2014 | 1 |
| 2015 | 1 |
| 2017 | 1 |
| 2021 | 2 |
| 2022 | 2 |
| 2026 | 1 |
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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('7640122', '7640123')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e.\"isDefiningEvent\" AND e.\"tier2Number\" = '092'))
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')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '092'))
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 CEN26LA276Accident · No injuriesClass 3 · LimitedPreliminary reportRobinson Helicopter R44 II · Bennett, IAOn August 2, 2026, about 1318 central daylight time, a Robinson Helicopter Company R44 II helicopter, N26KL, was substantially damaged when it was involved in an accident near Bennett, Iowa. The pilot was not injured. The helicopter was operated as a Title 14…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 CEN21LA378Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Gonzales, LAThe pilot’s inadvertent collision with a tree while landing at night which resulted in a hard landing.NTSB ERA21LA252Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Sylva, NCThe 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 CEN17LA219Accident · Serious injuriesLimited investigationFinal reportRobinson Helicopter R44 II · Douglas, WYThe pilot's inability to control the helicopter's descent after encountering a sudden wind shift to a tailwind while performing a near maximum gross weight landing at a high density altitude.NTSB CEN15LA387Accident · Serious injuriesLimited investigationFinal reportRobinson R44 II · Cheyenne, WYThe pilot's improper preflight performance planning, which resulted in a hard landing due to low rotor rpm while operating near maximum gross weight in high density altitude conditions.NTSB ERA14LA311Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R44 II · Nashville, TNThe pilot’s failure to maintain rotor rpm during an autorotation after a perceived partial loss of power, which resulted in a hard landing. Contributing to the accident was radio frequency interference with the governor controller, which resulted in an…NTSB CEN13LA228Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R44 II · Buffalo, SDThe 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 CEN13CA124Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 II · Menard, TXThe helicopter landed hard during a forced landing.NTSB CEN12LA573Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R44 II · Belgium, WIThe pilot’s failure to maintain control of the helicopter while landing in gusting wind conditions, which resulted in a hard 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…