NTSB investigations: Robinson Helicopter R44 II, IA
12 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
| 2012 | 1 |
|---|---|
| 2014 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2026 | 2 |
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.\"eventStateOrRegion\" = 'IA' AND c.\"eventCountry\" = 'USA'
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."eventStateOrRegion" = 'IA' AND c."eventCountry" = 'USA'
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 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 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 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 CEN22LA366Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Maynard, IAAn impact with a powerline as a result of an unexpected wind gust.NTSB CEN21LA339Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · West Liberty, IAThe 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 CEN20LA330Accident · Serious injuriesClass 3 · LimitedFinal reportRobinson R44 · Logan, IAThe 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 CEN20LA136Accident · 2 fatalClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Audubon, IAThe 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 GAA19CA428Accident · Minor injuriesData collectionFinal reportRobinson R44 · Council Bluff, IAThe pilot's improper cyclic input during liftoff from a landing deck, which resulted in the right skid hooking onto an opening on the landing deck and a subsequent dynamic rollover.NTSB GAA18CA453Accident · Minor injuriesData collectionFinal reportRobinson R44 · Elma, IAThe pilot's failure maintain clearance from power lines during an agricultural application flight.NTSB CEN17CA346Accident · Minor injuriesData collectionFinal reportRobinson Helicopter R44 II · Logan, IAThe pilot’s failure to maintain clearance from a wire during an agricultural application flight.NTSB CEN14LA487Accident · 1 fatalLimited investigationFinal reportRobinson Helicopter R44 II · Macedonia, IAThe pilot’s inadequate visual lookout, which resulted in a collision with a static line.NTSB CEN12LA443Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R44 II · Red Oak, IAThe pilot's failure to maintain clearance from the ground-support vehicle during landing.