NTSB investigations: Robinson Helicopter R44
9 cases on aircraft the registry lists as Robinson Helicopter R44, where the first occurrence was “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
| 2001 | 1 |
|---|---|
| 2002 | 2 |
| 2004 | 1 |
| 2005 | 4 |
| 2007 | 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 ('7640120')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 250))
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 ('7640120')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 250))
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 CHI07LA309Accident · No injuriesLimited investigationFinal reportRobinson R44 · Jackson Center, OHThe reported vibration in the helicopter during an approach for landing for undetermined reasons. Contributing to the accident was the mature cornfield.NTSB DFW05CA169Accident · No injuriesData collectionFinal reportRobinson R44 · Rayville, LAThe pilot's loss of control following an encounter with loss of tail rotor effectiveness. A contributing factor was the high density altitude.NTSB LAX05FA189Accident · Serious injuriesField investigationFinal reportRobinson R44 · Lucerne Valley, CAthe pilot's failure to maintain adequate main rotor rpm and directional control while maneuvering at low altitude. Contributing factors in the accident were the helicopter's gross weight in excess of the maximum hover out of ground effect limit, a high…NTSB LAX05LA164Accident · No injuriesLimited investigationFinal reportRobinson R44 · Gustine, CAthe improper installation of the nut/bolt assembly connecting the left cyclic push-pull tube to the non-rotating swashplate by maintenance personnel, which led to a loss of roll control during takeoff.NTSB CHI05CA066Accident · No injuriesData collectionFinal reportRobinson R44 · Minneapolis, MNThe pilot's inadequate compensation for the wind conditions and his failure to maintain control of the helicopter while maneuvering to center the helicopter on a cart. A factor associated with the accident was the wind gusts.NTSB NYC04CA199Accident · No injuriesData collectionFinal reportRobinson R44 · Wildwood, NJThe pilot's inadequate visual lookout while conducting a nighttime landing to a dolly, which resulted in a stuck skid, and subsequent hard landing. A factor was the nighttime conditions.NTSB ANC02FA108Accident · 2 fatalField investigationFinal reportRobinson R-44 · Ketchikan, AKThe pilot's failure to maintain control of the helicopter in-flight due to spatial disorientation, which resulted in an uncontrolled descent and impact with the surface of a lake. Factors contributing to the accident were the high terrain surrounding the…NTSB FTW02LA197Accident · No injuriesLimited investigationFinal reportRobinson R44 · Houston, TXThe pilot's loss of control after encountering dynamic rollover during takeoff. A contributing factor was the pilot's inadequate preflight inspection.NTSB SEA01FA089Accident · 2 fatalField investigationFinal reportRobinson R44 · Gorst, WAAn abrupt application of the tail rotor/anti-torque pedal by an unknown pilot resulting in tail rotor contact with the tail boom. Tail rotor blades and empennage assembly separation, and trees were factors.