# NTSB investigations, WA: Aircraft maintenance event 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 WPR23LA177](https://openairdocs.org/ntsb/WPR23LA177.md): Cessna 210M · Pasco, WA · Accident · No injuries · Class 3 · Limited · Final report · May 4, 2023 · N777CF · Substantial damage > Improper maintenance on the fuel outlet line to the fuel servo, which resulted in the line partially separating from the fuel outlet fitting and the subsequent fuel starvation and total loss of engine power. - [NTSB WPR21LA161](https://openairdocs.org/ntsb/WPR21LA161.md): Rans S12 · Colville, WA · Accident · 2 fatal · Class 3 · Limited · Final report · Apr 17, 2021 · N707PH · Substantial damage > The pilot’s exceedance of the airplane’s critical angle of attack while maneuvering to avoid powerlines, which resulted in an aerodynamic stall and a loss of control. Contributing to the accident was the partial loss of engine power due to improper… - [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 WPR15FA158](https://openairdocs.org/ntsb/WPR15FA158.md): Piper PA 46 350P · Spokane, WA · Accident · 2 fatal · Field investigation · Final report · May 7, 2015 · N962DA · Destroyed > The mechanic's incorrect installation of two aileron cables and the subsequent inadequate functional checks of the aileron system before flight by both the mechanic and the pilot, which prevented proper roll control from the cockpit, resulting in the pilot's… - [NTSB WPR15LA109](https://openairdocs.org/ntsb/WPR15LA109.md): Bell/Garlick UH 1H · Shelton, WA · Accident · No injuries · Limited investigation · Final report · Feb 19, 2015 · N166DR · Substantial damage > The fatigue failure of the engine-to-transmission driveshaft adapter attachment bolt due to the application of inadequate torque on the bolt during assembly. - [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 WPR12CA257](https://openairdocs.org/ntsb/WPR12CA257.md): Cessna 182A · Colfax, WA · Accident · No injuries · Data collection · Final report · Jun 11, 2012 · N4715D · Substantial damage > The total loss of engine power during cruise flight due to the missing carburetor drain plug, which had not been secured with safety wire. - [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 WPR10FA163](https://openairdocs.org/ntsb/WPR10FA163.md): Cirrus Design SR22 · Morton, WA · Accident · 1 fatal · Field investigation · Final report · Mar 20, 2010 · N224GS · Substantial damage > The failure of maintenance personnel to properly secure a fitting cap on the throttle and metering assembly inlet after conducting a fuel system pressure check, which resulted in a loss of engine power due to fuel starvation. Contributing to the accident was… - [NTSB WPR10LA165](https://openairdocs.org/ntsb/WPR10LA165.md): Piper PA-28R-200 · Eliza Island, WA · Accident · No injuries · Limited investigation · Final report · Mar 17, 2010 · N1KU · Substantial damage > The total loss of engine power during cruise flight due to the failure of maintenance personnel to tighten a fitting on the propeller governor oil line, which resulted in a loss of engine oil and catastrophic engine failure. - [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 WPR09LA197](https://openairdocs.org/ntsb/WPR09LA197.md): Raytheon A36 · Lopez Island, WA · Accident · No injuries · Limited investigation · Final report · Apr 16, 2009 · N464TJ · Substantial damage > A loss of engine power during cruise flight due to oil starvation. The oil starvation event was due to the failure of maintenance personnel to tighten the aft mounting nuts for the newly installed propeller governor and the pilot’s failure to secure the oil… - [NTSB WPR09LA022](https://openairdocs.org/ntsb/WPR09LA022.md): Stinson 108-1 · Concrete, WA · Accident · 1 fatal · Limited investigation · Final report · Oct 23, 2008 · N97946 · Substantial damage > The loss of engine power during initial climb due to the pilot's improper exhaust system maintenance, which resulted in restriction of the carburetor's air intake. - [NTSB SEA08LA206](https://openairdocs.org/ntsb/SEA08LA206.md): Stearman C3-B · Stevenson, WA · Accident · No injuries · Limited investigation · Final report · Sep 20, 2008 · N3440 · Substantial damage > A loss of engine power due to fuel starvation from a piece of disintegrating gasket material that was blocking the fuel jet. Also causal was the failure of maintenance personnel to verify the condition of the gaskets when the carburetor was examined prior to… ## 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" = '040' 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/040/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.