NTSB investigations: Robinson Helicopter R44

9 cases on aircraft the registry lists as Robinson Helicopter R44, where the defining event was Miscellaneous/other. 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

20092026
NTSB investigations: Robinson Helicopter R44 per year, 2009–2026: 9 cases
20091
20122
20142
20151
20161
20262

Latest 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 ('7640120')
      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\" = '900'))
  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.

NTSB CEN26LA260Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 · Emerson, IAThe failure of the pilot to verify the loading hose had been disconnected before taking off and the failure of the loader to disconnect the fuel hose from the helicopter.Jul 20, 2026 · N224RH · Substantial damageNTSB ERA26LA234Accident · Serious injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 · Mayesville, SCThe pilot’s failure to remain clear of a power line during an aerial application flight.Jun 8, 2026 · N144CD · Substantial damageNTSB WPR16LA132Accident · No injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 · El Centro, CAA loss of main rotor rpm and airframe vibration for reasons that could not be determined based on the available information, which resulted in a forced landing to sloping terrain and the helicopter rolling over.Jun 28, 2016 · N8325X · Substantial damageNTSB ERA15CA262Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 · Viola, TNThe pilot's failure to see and avoid a guy wire, which resulted in contact with the wire and subsequent collision with terrain.Jul 12, 2015 · N577AT · Substantial damageNTSB CEN14CA338Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 · Olathe, KSThe pilot's failure to follow the manufacturer's engine shutdown procedure.Jul 2, 2014 · N225TV · Substantial damageNTSB ERA14CA143Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 · Orlando, FLThe pilot's inadequate preflight inspection in which he failed to remove the tail rotor covers, which resulted in the failure of the tail rotor drive shaft during engine start.Feb 10, 2014 · N7040U · Substantial damageNTSB ERA12LA429Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R44 · Tallahassee, FLThe pilot’s failure to maintain awareness of the helicopter’s altitude while attempting to troubleshoot the clutch actuator warning light, which resulted in an inadvertent descent and impact with water. Contributing to the accident was the pilot's possible…Jul 4, 2012 · N561CH · Substantial damageNTSB ERA12CA179Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 · N. Charleston, SCThe flight instructor’s failure to apply power during a practice autorotation in order to arrest a high rate of descent, which resulted in an in-flight collision with terrain.Feb 13, 2012 · N5511L · Substantial damageNTSB WPR09LA436Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R44 · Torrance, CAA main rotor overspeed due to the pilot’s failure to maintain rotor RPM within allowable limits during a practice autorotation.Sep 3, 2009 · N8361X · Substantial damage