# NTSB investigations: Tail rotor control system NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports. ## Latest cases - [NTSB CEN22LA009](https://openairdocs.org/ntsb/CEN22LA009.md): Bell 206 · Gonzales, LA · Accident · Minor injuries · Class 3 · Limited · Final report · Oct 6, 2021 · N373SP · Substantial damage > The student pilot’s failure to compensate for an unanticipated right yaw, which resulted in a loss of tail rotor effectiveness and helicopter control. - [NTSB WPR21LA039](https://openairdocs.org/ntsb/WPR21LA039.md): Agusta A109 · Los Angeles, CA · Accident · Serious injuries · Class 3 · Limited · Final report · Nov 6, 2020 · N109EX · Substantial damage > The loss of tail rotor control due to the separation of the tail rotor duplex bearing ring nut from the thrust sleeve, which resulted in the loss of helicopter control. - [NTSB GAA19CA403](https://openairdocs.org/ntsb/GAA19CA403.md): Md Helicopter 369 · Summersville, SC · Accident · Minor injuries · Data collection · Final report · Jun 26, 2019 · N500SC · Substantial damage > The copilot’s disabling of the flight controls of an operating helicopter without telling the pilot on the controls, which resulted in a subsequent loss of control and collision with terrain. - [NTSB CEN18LA290](https://openairdocs.org/ntsb/CEN18LA290.md): Bell 206 · Todd Mission, TX · Accident · Minor injuries · Limited investigation · Final report · Jul 20, 2018 · N352CT · Substantial damage > The passenger’s inadvertent interference with the tail rotor pedals, which resulted in a loss of helicopter control during takeoff and the subsequent impact with terrain. - [NTSB GAA16LA182](https://openairdocs.org/ntsb/GAA16LA182.md): Hughes 369 · Weatherford, TX · Accident · Serious injuries · Limited investigation · Final report · Apr 8, 2016 · N298SD · Substantial damage > The pilot/mechanic's inadequate postmaintenance and preflight inspections, which resulted in his failure to remove the antitorque pedal lock and a subsequent loss of control during hover operations. - [NTSB GAA16CA075](https://openairdocs.org/ntsb/GAA16CA075.md): Robinson Helicopter R44 · West Palm Beach, FL · Accident · No injuries · Data collection · Final report · Dec 9, 2015 · N4427H · Substantial damage > The student pilot's failure to maintain directional control during the landing, which resulted in a horizontal rotation of the helicopter, and abnormal runway contact. - [NTSB ERA15LA374](https://openairdocs.org/ntsb/ERA15LA374.md): Bell 206 · Thomaston, GA · Accident · No injuries · Limited investigation · Final report · Sep 20, 2015 · N165BH · Destroyed > The loss of tail rotor control due to a fractured pin in the tail rotor control system; the reason the pin fractured could not be determined as the fractured pin was lost in shipping. - [NTSB ANC15LA015](https://openairdocs.org/ntsb/ANC15LA015.md): Airbus AS350 B2 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Mar 13, 2015 · N814EH · Substantial damage > The failure of the ball bearing within the pitch change spider assembly due to its operation with no grease within the bearing, which resulted in the subsequent fracture of the spider assembly and a loss of tail rotor control authority. Also causal to the… - [NTSB CEN11WA412](https://openairdocs.org/ntsb/CEN11WA412.md): McDonnell Douglas Helicopter 369E · Glastonbury, United Kingdom · Accident · Serious injuries · Foreign investigation · Jun 19, 2011 · G-KSWI · Substantial damage > On June 19, 2011, at 1420 universal coordinated time (UTC), a McDonnell Douglas Helicopter Company model 369E, United Kingdom registration G-KSWI, s/n 0204E, was substantially damaged during an emergency landing after experiencing a mechanical failure of the… - [NTSB WPR09LA069](https://openairdocs.org/ntsb/WPR09LA069.md): Hughes 369 · Honiara, Solomon Islands · Accident · 1 fatal · Limited investigation · Final report · Dec 28, 2008 · N104BN · Destroyed > The pilot's failure to remove the tail rotor pedal lock before attempting flight, resulting in a loss of control. - [NTSB LAX08IA241](https://openairdocs.org/ntsb/LAX08IA241.md): MD Helicopters MD 902 · Salinas, CA · Incident · No injuries · Incident investigation · Final report · Jul 21, 2008 · N902CS · Minor damage > The pilot's inability to maintain directional control due to the fatigue failure of the threaded portion of the forward directional control cable as a result of the improper installation a lock washer. - [NTSB CHI08CA164](https://openairdocs.org/ntsb/CHI08CA164.md): Hughes 269B · Cook, MN · Accident · Minor injuries · Data collection · Final report · Jun 15, 2008 · N9357F · Substantial damage > The pilot not maintaining tail rotor effectiveness while turning in cruise. - [NTSB NYC08CA132](https://openairdocs.org/ntsb/NYC08CA132.md): Rotorway 162F · Cartersville, GA · Accident · No injuries · Data collection · Final report · Mar 9, 2008 · N831MS · Substantial damage > The owner/builder's improper installation of the foot pedal scissor beam, which resulted in its failure during hover flight. ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '01046720')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb-findings/01046720/cases --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.