# NTSB investigations, WA: 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. ## Latest cases - [NTSB WPR24FA182](https://openairdocs.org/ntsb/WPR24FA182.md): Vans RV-12 · Auburn, WA · Accident · 1 fatal · Class 3 · Field · Final report · Jun 6, 2024 · N412JN · Substantial damage > The pilot’s improper installation of the control stick pushrod assemblies, which resulted in separation of the left pushrod and a total loss of roll control during flight. Contributing to the accident was the failure to detect the installation error during… - [NTSB WPR22LA136](https://openairdocs.org/ntsb/WPR22LA136.md): Downer Bellanca 14-19-2 · Prosser, WA · Accident · No injuries · Class 3 · Limited · Final report · Mar 26, 2022 · N7658B · Substantial damage > An inadequately welded elevator attachment lug, which caused the elevator to partially detach from its bellcrank, resulting in flutter and structural 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 WPR18LA047](https://openairdocs.org/ntsb/WPR18LA047.md): Cessna 172D · Auburn, WA · Accident · No injuries · Class 3 · Limited · Final report · Dec 7, 2017 · N2351U · Substantial damage > The pilot's loss of airplane control for reasons that could not be determined based on the available information. - [NTSB ENG18IA003](https://openairdocs.org/ntsb/ENG18IA003.md): Airbus A330-243 · Seattle, WA · Incident · No injuries · Class 3 · Incident · Final report · Nov 7, 2017 · N375HA · Minor damage > The loss of control of the left-hand engine and the subsequent thermal damage to the left wing on landing during engine reverse operation was due to a blockage of the variable stator vane torque motor filter that resulted in the engine’s electronic engine… - [NTSB WPR17LA087](https://openairdocs.org/ntsb/WPR17LA087.md): Titan Tornado I · Spanaway, WA · Accident · Serious injuries · Limited investigation · Final report · Apr 13, 2017 · N5131H · Substantial damage > Maintenance personnel’s improper attachment of the aileron system components, which resulted in the pilot's inability to maintain flight control. - [NTSB WPR14CA136](https://openairdocs.org/ntsb/WPR14CA136.md): Norman Quad City Challenger · Monroe, WA · Accident · No injuries · Data collection · Final report · Mar 13, 2014 · N345MN · Substantial damage > The pilot's inadequate construction of the propeller bracket, which resulted in its failure during the initial climb and the propeller subsequently departing the airplane. - [NTSB WPR14CA004](https://openairdocs.org/ntsb/WPR14CA004.md): Venables Zenith CH701 · Snohomish, WA · Accident · Minor injuries · Data collection · Final report · Oct 3, 2013 · N143TZ · Substantial damage > A jammed rudder control while maneuvering in the pattern for reasons that could not be determined. No follow-up examination was conducted due to a lapse in agency funding and subsequent government shutdown. - [NTSB WPR12IA248](https://openairdocs.org/ntsb/WPR12IA248.md): Eurocopter AS 350 B2 · Seattle, WA · Incident · No injuries · Incident investigation · Final report · May 22, 2012 · N105TV · Minor damage > Failure of maintenance personnel to ensure that the tail rotor pitch change link bolt was properly secured, which resulted in an in-flight separation of the bolt and subsequent vibration. - [NTSB WPR10LA374](https://openairdocs.org/ntsb/WPR10LA374.md): Lancair 320 · Spokane, WA · Accident · Minor injuries · Limited investigation · Final report · Jul 27, 2010 · N360N · Substantial damage > Loss of airplane control due to the asymmetric flap condition. - [NTSB WPR10FA009](https://openairdocs.org/ntsb/WPR10FA009.md): Piper PA-12 · Burlington, WA · Accident · 1 fatal · Field investigation · Final report · Oct 8, 2009 · N2087C · Substantial damage > The pilot's in-flight loss of control due to his failure to correctly connect the elevator control cables during the restoration/rebuild of the airplane. Contributing to this accident was the pilot's decision to perform a high-speed taxi test prior to having… - [NTSB LAX08LA160](https://openairdocs.org/ntsb/LAX08LA160.md): Quad City Ultralight Challenger LSS · Moses Lake, WA · Accident · 1 fatal · Limited investigation · Final report · May 31, 2008 · N95478 · Substantial damage > The pilot's inability to maintain control due to an in-flight separation of the vertical fin as a result of the failure of the airplane's builder to properly secure the vertical fin to the fuselage. ## 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."eventStateOrRegion" = 'WA' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '333' 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 ``` This list as a web page: https://openairdocs.org/ntsb-events/333/sequence?state=WA --- 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.