# NTSB investigations: Flight control sys malf/fail 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. Page 3 of 8 · 357 cases ## Cases, newest first - [NTSB ANC21LA093](https://openairdocs.org/ntsb/ANC21LA093.md): Piper PA-22-150 · Chandalar Shelf, AK · Accident · No injuries · Class 4 · Limited · Final report · Sep 17, 2021 · N8061D · Substantial damage > A separation of the rudder cable from the rudder pedal due to the connecting bolt detaching for undetermined reasons, which resulted in a loss of directional control. - [NTSB ERA21LA360](https://openairdocs.org/ntsb/ERA21LA360.md): Zenith 750 Cruzer · New Smyrna, FL · Accident · No injuries · Class 3 · Limited · Final report · Sep 14, 2021 · N161AR · Substantial damage > The mechanic’s inadequate inspection of the flight control system, which resulted in a loss of airplane control. - [NTSB DCA21WA219](https://openairdocs.org/ntsb/DCA21WA219.md): Embraer ERJ190 · Maiquetia, Venezuela · Incident · Class 5 · Foreign · Aug 25, 2021 · YV2912 · No damage - [NTSB DCA21WA221](https://openairdocs.org/ntsb/DCA21WA221.md): Airbus A300 · Marquetia, Venezuela · Incident · Class 5 · Foreign · Aug 21, 2021 · YV562T · No damage - [NTSB ANC21LA075](https://openairdocs.org/ntsb/ANC21LA075.md): Piper PA-18 · Talkeetna, AK · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 10, 2021 · N1264A · Substantial damage > The malfunction of the control stick during initial climb for reasons that could not be determined based on available evidence. - [NTSB DCA21WA205](https://openairdocs.org/ntsb/DCA21WA205.md): Boeing 737 · Perth, Australia · Incident · Class 5 · Foreign · Jul 31, 2021 · UNK · No damage - [NTSB GAA21WA191](https://openairdocs.org/ntsb/GAA21WA191.md): Bell 206 · Policka, Czechia · Accident · No injuries · Class 5 · Foreign · Jul 30, 2021 · OK-BWR - [NTSB CEN21LA346](https://openairdocs.org/ntsb/CEN21LA346.md): HpH, Spol. S.R.O. Glasflügel 304S · Briggs, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 30, 2021 · N304AB · Substantial damage > The overstress fracture of the elevator control tube due to reduced wall thickness from water intrusion and subsequent corrosion. Contributing to the accident was the lack of a drain hole at the bottom of the elevator control tube, which allowed the tube to… - [NTSB ANC21LA064](https://openairdocs.org/ntsb/ANC21LA064.md): Piper PA-14 · Anchorage, AK · Accident · No injuries · Class 3 · Limited · Final report · Jul 23, 2021 · N4206H · Substantial damage > The fatigue fracture of the American Iron and Steel Institute (AISI) 1025 carbon steel rudder post, which resulted in structural failure of the rudder. Contributing to the fatigue failure was the post’s susceptibility to fatigue cracking under normal service… - [NTSB ENG21WA046](https://openairdocs.org/ntsb/ENG21WA046.md): Boeing 737 · Enroute, Germany · Incident · No injuries · Class 5 · Foreign · Jul 7, 2021 · EI-STM · No damage - [NTSB WPR21LA238](https://openairdocs.org/ntsb/WPR21LA238.md): Piper PA-25-235 · Twisp, WA · Accident · No injuries · Class 4 · Limited · Final report · Jun 20, 2021 · N6917Z · Substantial damage > An in-flight separation of the control stick from the torque tube assembly, which resulted in a loss of directional control during the landing roll and subsequent on-ground collision. - [NTSB CEN21FA272](https://openairdocs.org/ntsb/CEN21FA272.md): Antenor Velazco Lancair Evolution · Parker, CO · Accident · 2 fatal · Class 3 · Field · Final report · Jun 16, 2021 · N704AK · Destroyed > The pilot’s diversion of attention following an asymmetric flap deployment, which resulted in a descent and collision with powerlines. Contributing to the accident was maintenance personnel’s failure to properly secure the flap control rod attachment bolts,… - [NTSB GAA21WA074](https://openairdocs.org/ntsb/GAA21WA074.md): Piper J3 · Epse, Netherlands · Accident · No injuries · Class 5 · Foreign · Apr 15, 2021 · NC50601 · Destroyed - [NTSB ENG21WA024](https://openairdocs.org/ntsb/ENG21WA024.md): BAE ATP · Ronaldsway, Isle of Man · Incident · No injuries · Class 5 · Foreign · Apr 9, 2021 · SE-LPS · No damage - [NTSB DCA21WA111](https://openairdocs.org/ntsb/DCA21WA111.md): Airbus A320 · Lima, Peru · Incident · No injuries · Class 5 · Foreign · Mar 27, 2021 · CC-AZE · Minor damage - [NTSB DCA21LA094](https://openairdocs.org/ntsb/DCA21LA094.md): Bell APT70 · Fort Benning, GA · Accident · Class 4 · Limited · Final report · Mar 1, 2021 · N314AQ · Substantial damage > failure of an electronic speed controller that resulted in a descent and impact with trees. - [NTSB ERA21LA131](https://openairdocs.org/ntsb/ERA21LA131.md): Piper PA-18 · Lake Placid, FL · Accident · Minor injuries · Class 4 · Limited · Final report · Feb 10, 2021 · N8183C · Substantial damage > The pilot’s failure to ensure that the aft seat cushion was adequately secured, which resulted in its movement, subsequent interference with the flight controls, and a hard landing. - [NTSB ERA21LA106](https://openairdocs.org/ntsb/ERA21LA106.md): American AA5 · Leesburg, VA · Accident · No injuries · Class 3 · Limited · Final report · Jan 19, 2021 · N5880L · Substantial damage > The weakened structure of the left horizontal stabilizer, which resulted in elevator flutter and subsequent partial separation of the left elevator in flight. Contributing to the accident were the lack of elevator authority while landing due to the damaged… - [NTSB DCA21WA081](https://openairdocs.org/ntsb/DCA21WA081.md): Boeing 737 · Mexico City, Mexico · Incident · No injuries · Class 5 · Foreign · Jan 6, 2021 · HP-1526CMP · No damage - [NTSB DCA21WA033](https://openairdocs.org/ntsb/DCA21WA033.md): Boeing 737 · Capetown, South Africa · Incident · Class 5 · Foreign · Nov 22, 2020 · ZS-OAF · No damage - [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 DCA20WA151](https://openairdocs.org/ntsb/DCA20WA151.md): Bombardier CL600 2D24 · Gallivare, Sweden · Incident · No injuries · Class 5 · Foreign · Sep 10, 2020 · EC-ACD · Minor damage - [NTSB WPR20LA301](https://openairdocs.org/ntsb/WPR20LA301.md): Lake LA4 · Rawlins, WY · Accident · 1 fatal · Class 3 · Limited · Final report · Aug 25, 2020 · N93AB · Substantial damage > The pilot’s decision to depart despite a known mechanical trim malfunction and with a high-density altitude and the airplane at or above its maximum gross weight. - [NTSB CEN20WA434](https://openairdocs.org/ntsb/CEN20WA434.md): Raytheon Hawker · Le Bourget, France · Incident · Class 5 · Foreign · Aug 21, 2020 · F-HREX · No damage - [NTSB ERA20CA246](https://openairdocs.org/ntsb/ERA20CA246.md): Piper PA22 · Cortland, NY · Accident · Minor injuries · Class 4 · Data collection · Final report · Jul 13, 2020 · N2716P · Substantial damage > The mechanic’s incorrect rigging of the aileron control cables, which resulted in a reversal of aileron control inputs applied by the pilot during the takeoff. Also causal was the mechanic’s inadequate post-maintenance inspection and the pilot's inadequate… - [NTSB CEN20LA259](https://openairdocs.org/ntsb/CEN20LA259.md): Sopwith Type 9400 · Van Alstyne, TX · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 3, 2020 · N5539 · Substantial damage > An inflight loss of aileron control due to movement of a control connector. - [NTSB ERA20CA232](https://openairdocs.org/ntsb/ERA20CA232.md): Ayres S2R · Perry, GA · Accident · No injuries · Class 4 · Data collection · Final report · Jun 27, 2020 · N4032L · Substantial damage > The reported malfunction of the aileron flight control system during takeoff for reasons that could not be determined. - [NTSB CEN20LA173](https://openairdocs.org/ntsb/CEN20LA173.md): Titan Titan Tornado S · Haskell, OK · Accident · Serious injuries · Class 3 · Limited · Final report · May 9, 2020 · N318WH · Substantial damage > The student pilot/builder’s addition of winglets to the stabilator, which resulted in flutter and overstress failure of the stabilator control horn. - [NTSB ENG20LA031](https://openairdocs.org/ntsb/ENG20LA031.md): Airbus Helicopters AS350 · Clewiston, FL · Incident · No injuries · Class 3 · Limited · Final report · May 3, 2020 · N1WT · No damage > Seizure of the hydraulic pump pulley bearing due to its improper installation by the manufacturer, leading to a failure of the hydraulic pump belt and the resultant partial loss of hydraulic assistance to the pedals. - [NTSB ERA20CA168](https://openairdocs.org/ntsb/ERA20CA168.md): Dayton-Wright DH-4 · Bowling Green, KY · Accident · No injuries · Class 4 · Data collection · Final report · May 2, 2020 · N32517 · Substantial damage > A primary control (aileron) system anomaly that progressively worsened during a test flight that resulted in a loss of control. The reason for the anomaly was not determined due to impact damage. - [NTSB WPR20LA135](https://openairdocs.org/ntsb/WPR20LA135.md): Piper PA-23-250 · Hemet, CA · Accident · 1 fatal · Class 3 · Limited · Final report · Apr 30, 2020 · N6521Y · Substantial damage > Maintenance personnel’s failure to properly inspect and replace damaged aileron control cables, which resulted in fatigue separation of the aileron control cable and loss of control of the aircraft. - [NTSB DCA20LA100](https://openairdocs.org/ntsb/DCA20LA100.md): Sikorsky S61 · Camp Dwyer, Afghanistan · Accident · Serious injuries · Class 3 · Limited · Final report · Apr 20, 2020 · N908CH · Substantial damage > Fatigue cracking of the auxiliary servo cylinder’s pedal damper check valve housing and its bolts, which caused the sudden and uncommanded movement of the helicopter’s left pedal and a subsequent left yaw that continued until ground impact. Contributing to… - [NTSB WPR20WA317](https://openairdocs.org/ntsb/WPR20WA317.md): Robinson R44 · Mareeba Aerodrome, Australia · Accident · No injuries · Class 5 · Foreign · Apr 3, 2020 · VH-RJN · No damage - [NTSB DCA20WA074](https://openairdocs.org/ntsb/DCA20WA074.md): Boeing 757 · San Jose, Costa Rica · Incident · No injuries · Foreign investigation · Feb 9, 2020 · N200UU · No damage > The Consejo Technico de Aviacion Civil (CTAC)of Costa Rica notified the NTSB of an incident involving a Boeing 757-2B7, which occurred on February 9, 2020. The NTSB has appointed a U.S. Accredited Representative to assist under the provisions of ICAO Annex 13… - [NTSB ENG20WA034](https://openairdocs.org/ntsb/ENG20WA034.md): Bombardier CL600 2C10 · Lyon Saint Exupéry Airport, France · Incident · No injuries · Foreign investigation · Jan 23, 2020 · F-GRZL · No damage > The BEA of France has notified the NTSB of an incident involving a Bombardier CL600-2C10 airplane that occurred on January 23, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the BEA of France's investigation under the provisions of… - [NTSB ERA20LA080](https://openairdocs.org/ntsb/ERA20LA080.md): Team Rocket F-1 F-1 · Suffolk, VA · Accident · No injuries · Class 3 · Limited · Final report · Dec 24, 2019 · N230BW · Substantial damage > A structural failure of the horizontal stabilizer during aerobatic maneuvers near the airplane’s never-exceed speed. Contributing to the failure was the construction of the horizontal stabilizer that did not meet the kit manufacturer’s specifications. - [NTSB CEN20WA056](https://openairdocs.org/ntsb/CEN20WA056.md): Learjet 45 · Geneva, Switzerland · Incident · No injuries · Foreign investigation · Dec 18, 2019 · D-CNMB · No damage > The government of Switzerland has notified the NTSB of an incident involving a LEARJET 45 airplane that occurred on December 18, 2019. The NTSB has appointed a U.S. Accredited Representative to assist the government of Switzerland's investigation under the… - [NTSB WPR20TA039](https://openairdocs.org/ntsb/WPR20TA039.md): Enstrom F28 · Riverton, UT · Accident · Minor injuries · Class 3 · Final report · Dec 11, 2019 · N65RS · Substantial damage > The noncertificated pilot’s decision to operate a deregistered helicopter, which resulted in a component failure and subsequent loss of control and hard landing. Contributing to the accident was the lack of recent maintenance on the helicopter. - [NTSB ERA20LA051](https://openairdocs.org/ntsb/ERA20LA051.md): Parsons Two Place #1 · Naguabo, PR · Accident · Serious injuries · Class 3 · Limited · Final report · Dec 8, 2019 · N446PS · Substantial damage > A failure of the rudder attachment bolt, which resulted in the rudder’s subsequent inflight separation from the fuselage. - [NTSB WPR20LA004](https://openairdocs.org/ntsb/WPR20LA004.md): Glaser Dirks DG500 · Marana, AZ · Accident · Minor injuries · Class 3 · Limited · Final report · Oct 6, 2019 · N600TT · Substantial damage > The pilots’ exceedance of the glider’s never-exceed speed (VNE) during recovery from an intentional aerobatic maneuver, which resulted in a failure of the right-wing air brake control drive, asymmetrical air brake deployment, and a subsequent hard landing. - [NTSB WPR20LA001](https://openairdocs.org/ntsb/WPR20LA001.md): Buckeye Breeze · Moore, UT · Accident · 1 fatal · Class 3 · Limited · Final report · Oct 5, 2019 · N582UT · Substantial damage > The pilot’s improper preflight inspection and detection of a pinch point in the steering line, which resulted in a loss of control in flight and impact with terrain. - [NTSB DCA19WA212](https://openairdocs.org/ntsb/DCA19WA212.md): Boeing 737 · South Africa · Incident · No injuries · Foreign investigation · Sep 2, 2019 · ZS-SJD · No damage > The government of South Africa has notified the NTSB of an incident involving a BOEING 737 airplane that occurred on September 02, 2019. The NTSB has appointed a U.S. Accredited Representative to assist the government of South Africa's investigation under the… - [NTSB CEN19LA224](https://openairdocs.org/ntsb/CEN19LA224.md): Piper PA18 · Osceola, WI · Accident · No injuries · Class 3 · Limited · Final report · Jul 14, 2019 · N6983B · Substantial damage > The failure of the right horizontal stabilizer during takeoff, resulting in a loss of control and forced landing. Contributing to the accident was the installation of an unapproved stabilizer frame and failure of maintenance personnel to identify… - [NTSB CEN19LA219](https://openairdocs.org/ntsb/CEN19LA219.md): Fisher Flying Products Super Koala · Hazen, ND · Accident · No injuries · Class 3 · Limited · Final report · Jul 6, 2019 · N220FF · Substantial damage > The airplane owner's and mechanic's improper rigging and cable tension of the aileron control system, which resulted in a loss of control during takeoff. - [NTSB CEN19LA174](https://openairdocs.org/ntsb/CEN19LA174.md): Robinson R44 · Key West, FL · Accident · No injuries · Class 3 · Limited · Final report · Jun 17, 2019 · N1241W · Substantial damage > The failure of maintenance personnel to properly secure the right-side tail boom mounting bolts which resulted in the failure of the bolts and an inflight separation of the tail rotor. - [NTSB DCA19LA154](https://openairdocs.org/ntsb/DCA19LA154.md): Aurora PAV · Manassas, VA · Accident · No injuries · Limited investigation · Final report · Jun 4, 2019 · N83AU · Substantial damage > a loss of hover lift thrust provided by the eight lift motors due to a false on-ground rotor speed reduction command, resulting from excessive vibration. - [NTSB WPR19LA112](https://openairdocs.org/ntsb/WPR19LA112.md): Air Tractor AT502 · Morganza, LA · Accident · Serious injuries · Class 3 · Limited · Final report · Apr 16, 2019 · N599LA · Substantial damage > A loss of aircraft control due to the separation of the elevator pushrod attachment bolt. - [NTSB WPR19LA114](https://openairdocs.org/ntsb/WPR19LA114.md): Great Lakes 2T-1A-2 · San Diego, CA · Accident · No injuries · Class 3 · Limited · Final report · Mar 15, 2019 · N101GL · Substantial damage > The fracture of the aileron hinge strap due to fatigue crack propagation, which resulted in substantial damage to a wing rib aft of the spar at the outboard aileron cutout. Contributing to the accident was inadequate maintenance inspection. - [NTSB DCA19WA023](https://openairdocs.org/ntsb/DCA19WA023.md): Embraer 190 · Bara, Portugal · Incident · No injuries · Foreign investigation · Nov 11, 2018 · P4-KCJ · No damage > The GPIA of Portugal has notified the NTSB of an incident involving a Embraer 190 airplane that occurred on November 11, 2018. The NTSB has appointed a U.S. Accredited Representative to assist the GPIA of Portugal's investigation under the provisions of ICAO… - [NTSB CEN19WA042](https://openairdocs.org/ntsb/CEN19WA042.md): Piper PA34 · Uk, United Kingdom · Accident · No injuries · Foreign investigation · Nov 2, 2018 · G-OXFF > The government of United Kingdom has notified the NTSB of an accident involving a PIPER PA34 airplane that occurred on November 02, 2018. The NTSB has appointed a U.S. Accredited Representative to assist the government of United Kingdom's investigation under… Next page: https://openairdocs.org/ntsb-events/333/cases.md?page=4 ## 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 e.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e."isDefiningEvent" AND e."tier2Number" = '333') ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb-events/333/cases?page=3 --- 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.