NTSB investigations: Bell 206B
13 cases on aircraft the registry lists as Bell 206B, where the sequence of events included Loss of tail rotor effectiveness. 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
| 2008 | 1 |
|---|---|
| 2011 | 1 |
| 2012 | 1 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 3 |
| 2021 | 2 |
| 2024 | 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 ('1181511')
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\" = '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 c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1181511')
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" = '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" 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 ERA25LA059Accident · No injuriesClass 4 · LimitedFinal reportBell 206B · Lakeland, FLThe pilot’s failure to maintain yaw control during a tailwind approach, which resulted in a loss of tail rotor effectiveness, an uncommanded spin, and subsequent hard landing.NTSB CEN22FA086Accident · 2 fatalClass 3 · FieldFinal reportBell 206B · Livingston, TXThe pilot exceeding the yaw control capability of the helicopter for the flight conditions, resulting in a non-mechanical loss of tail rotor effectiveness.NTSB CEN22LA009Accident · Minor injuriesClass 3 · LimitedFinal reportBell 206 · Gonzales, LAThe student pilot’s failure to compensate for an unanticipated right yaw, which resulted in a loss of tail rotor effectiveness and helicopter control.NTSB GAA17CA495Accident · No injuriesData collectionFinal reportBell 206 · Minden, NVThe pilot’s failure to maintain helicopter control during landing due to a loss of tail rotor effectiveness.NTSB GAA17CA393Accident · No injuriesData collectionFinal reportBell 206 · Dixon, KYThe pilot’s failure to see and avoid power lines while maneuvering at a low altitude. Contributing to the accident was the pilot’s failure to adequately identify hazards to flight during agricultural application operation planning.NTSB GAA17CA369Accident · No injuriesData collectionFinal reportBell 206B · Entiat, WAThe pilot’s failure to secure a loose item inside the cockpit that interfered with antitorque pedal control and led to a loss of helicopter control due to a loss of tail rotor effectiveness.NTSB ERA16CA160Accident · No injuriesData collectionFinal reportBell 206 · Baltimore, MDThe pilot's inadequate compensation for the wind while hovering out of ground effect, which resulted in a loss of tail rotor effectiveness.NTSB GAA15CA102Accident · No injuriesData collectionFinal reportBell 206 - B11 · Caledonia, MIA loss of tail rotor effectiveness while maneuvering at low altitude, resulting in a collision with trees.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 WPR14CA041Accident · No injuriesData collectionFinal reportBell 206B · Superior, MTThe pilot's failure to maintain aircraft control while maneuvering during a long-line operation.NTSB CEN12LA267Accident · Minor injuriesLimited investigationFinal reportBell 206B · Valley Falls, KSThe pilot’s inadequate compensation for the wind conditions during a hover maneuver, which resulted in a loss of tail rotor effectiveness.NTSB ERA12MA005Accident · 2 fatalMajor investigationFinal reportBell 206B · New York, NYThe pilot's failure to anticipate and correct for conditions (high gross weight, low indicated airspeed, and a right downwind turn) conducive to loss of tail rotor effectiveness (LTE), which resulted in LTE and an uncontrolled spin. Contributing to the…NTSB SEA08LA213Accident · Serious injuriesLimited investigationFinal reportBell 206B · Woods Landing-Jelm, WYThe pilot's encounter with a loss of tail rotor effectiveness event and his failure to maintain directional control while maneuvering. Contributing to the accident were the tailwind condition and the sloping, uneven terrain.