NTSB investigations: Robinson Helicopter R44 II

5 cases on aircraft the registry lists as Robinson Helicopter R44 II, where the sequence of events included Aircraft loading event. 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

20122026
NTSB investigations: Robinson Helicopter R44 II per year, 2012–2026: 5 cases
20121
20131
20171
20181
20231

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 ('7640122', '7640123')
      AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s.\"tier2Number\" = '010' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE \"isDefiningEvent\")))
  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 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.Jul 26, 2023 · N4174L · Substantial damageNTSB GAA18CA534Accident · No injuriesData collectionFinal reportRobinson R44 · Girdwood, AKThe fisherman's fishing rod striking the helicopter’s rotating main rotor disk during loading.Aug 30, 2018 · N99645 · Substantial damageNTSB GAA17CA398Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 II · Pocahontas, ILThe helicopter pilot’s miscommunication with the ground crewmember during reloading operations, which resulted in a takeoff with the filler hose attached to the helicopter and subsequent impact with a truck.Jul 7, 2017 · N62FA · Substantial damageNTSB WPR13LA217Accident · No injuriesLimited investigationFinal reportRobinson R44 II · Pomeroy, WAThe pilot's failure to ensure that the helicopter was properly loaded, which resulted in the helicopter being in excess of its maximum allowable gross weight and led to a loss of main rotor rpm on takeoff. Contributing to the accident were the ground…May 2, 2013 · N442RN · Substantial damageNTSB ANC12CA018Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 II · Beluga, AKGround personnel's movement of cargo in windy conditions, which allowed a previously secured cargo sack to blow into the main rotor blades.Jan 21, 2012 · N4510T · Substantial damage