NTSB investigations, 2014
8 cases where the sequence of events included Loss of tail rotor effectiveness.
Cases per year
| 2008 | 10 |
|---|---|
| 2009 | 3 |
| 2010 | 2 |
| 2011 | 7 |
| 2012 | 5 |
| 2013 | 9 |
| 2014 | 8 |
| 2015 | 7 |
| 2016 | 8 |
| 2017 | 11 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 2 |
| 2021 | 8 |
| 2022 | 4 |
| 2024 | 4 |
| 2025 | 1 |
| 2026 | 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 year(c.\"eventDate\") = 2014
AND c.\"mKey\" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.\"tier2Number\" = '242' 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.
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 year(c."eventDate") = 2014 AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '242' 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
Run 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 CEN15FA003Accident · 3 fatalField investigationFinal reportBell Helicopter Textron 206L 1 · Wichita Falls, TXThe pilot’s failure to maintain yaw control when he applied power to execute a go-around at a low airspeed in dark, night conditions, which resulted in a rapid, uncommanded right yaw due to a loss of tail rotor effectiveness.NTSB CEN15LA002Accident · Serious injuriesLimited investigationFinal reportBell 206B · Woodsboro, TXThe pilot’s failure to recognize and correct for flight conditions conducive to a loss of tail rotor effectiveness, which resulted in a rapid, uncommanded right yaw and subsequent hard landing.NTSB CEN14CA500Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 · Beaumont, TXThe pilot's loss tail rotor effectiveness while attempting a taxiway side-step during landing. Contributing to the accident was another pilot's failure to ensure the runway was clear before occupying the runway for takeoff.NTSB WPR14LA341Accident · No injuriesLimited investigationFinal reportMcdonnell Douglas Helicopter 500N · Idaho Falls, IDThe pilot’s loss of helicopter control for reasons that could not be determined because postaccident examination of the helicopter did not reveal any mechanical malfunctions or failures that would have precluded normal operation.NTSB WPR14CA325Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 II · Honolulu, HIThe pilot's inadequate compensation for the wind conditions and failure to maintain aircraft control during taxi, which resulted in a loss of tail rotor effectiveness and subsequent impact with the taxiway and a parked fuel truck.NTSB WPR14GA281Accident · Minor injuriesFinal reportAmerican Eurocopter AS350B3 · Fallon, NVA loss of tail rotor effectiveness, which resulted in an uncontrolled rotation and descent into terrain. Contributing to the accident was a sudden shift in wind conditions and the helicopter's high power demand condition due to its load weight and operating…NTSB CEN14CA142Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 II · Bonham, TXThe pilot's inadequate recovery from a loss of tail rotor effectiveness during a low altitude downwind hover in a gusty wind condition resulting in the helicopter contacting the ground and rolling over.NTSB CEN14GA109Accident · Serious injuriesFinal reportAmerican Eurocopter AS350B3 · Encino, TXThe pilot’s failure to maintain directional control while maneuvering, which resulted in a loss of tail rotor effectiveness. Contributing to the accident were the pilot’s limited experience in the operating environment and lack of formal mission training.