NTSB investigations: Robinson Helicopter R66

5 cases on aircraft the registry lists as Robinson Helicopter R66, where the sequence of events included Loss of control in flight. 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

20132026
NTSB investigations: Robinson Helicopter R66 per year, 2013–2026: 5 cases
20131
20213
20251

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 ('7640130')
      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\" = '240' 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 WPR25LA199Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R66 · Tukwila, WAThe pilot’s failure to maintain yaw control during a takeoff to a hover in a gusting crosswind, which resulted in a loss of directional control and a subsequent hard landing.Jun 30, 2025 · N23UP · Substantial damageNTSB ERA21LA171Accident · Serious injuriesClass 3 · LimitedFinal reportRobinson Helicopter R66 · Palmyra, PAThe pilot’s improper judgment to attempt a flight while impaired by medications, which resulted in the helicopter’s abnormal ground contact, loss of control, and collision with terrain.Apr 3, 2021 · N577DD · Substantial damageNTSB CEN21LA154Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R66 · Duson, LAThe uncertified pilot’s failure to maintain control of the helicopter when encountering a wind gust while hovering to land.Mar 9, 2021 · N49XB · Substantial damageNTSB ERA21LA121Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R66 · Knoxville, TNThe pilot’s failure to maintain directional control of the helicopter, which resulted in rear portion of the right skid contacting the ground and a subsequent dynamic rollover.Jan 30, 2021 · N660TN · Substantial damageNTSB ERA13FA336Accident · 5 fatalField investigationFinal reportRobinson R66 · Noxen, PAThe pilot's decision to continue VFR flight into night instrument meteorological conditions, which resulted in spatial disorientation and a loss of control.Jul 28, 2013 · N646AG · Destroyed