# NTSB investigations, WI: Aircraft structures 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 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 GAA19CA338](https://openairdocs.org/ntsb/GAA19CA338.md): Pzl-Swidnik PW-5 · Independence, WI · Accident · No injuries · Data collection · Final report · Jun 10, 2019 · N962JH · Substantial damage > The separation of the canopy from the glider during an off-airport landing for reasons that could not be determined. - [NTSB GAA18CA329](https://openairdocs.org/ntsb/GAA18CA329.md): Dobbs George Coot · Malone, WI · Accident · No injuries · Data collection · Final report · Jun 7, 2018 · N100TN · Substantial damage > The pilot’s improper decision to take off with a known structural issue, which resulted in hull damage. - [NTSB CEN17FA248](https://openairdocs.org/ntsb/CEN17FA248.md): Cessna 421C · Catawba, WI · Accident · 6 fatal · Field investigation · Final report · Jul 1, 2017 · N2655B · Destroyed > A loss of control and subsequent in-flight breakup for reasons that could not be determined based on the available information. - [NTSB CEN17FA231](https://openairdocs.org/ntsb/CEN17FA231.md): Gefa-Flug AS-105-GD · Hartford, WI · Accident · Serious injuries · Field investigation · Final report · Jun 15, 2017 · G-SUNA · Destroyed > The overpressurization failure of the airship envelope as a result of the airship's encounter with gusty wind conditions and thermal activity. Contributing to the accident was the jammed Plexiglass venting panel. - [NTSB CEN17LA224](https://openairdocs.org/ntsb/CEN17LA224.md): Mckenna SD-1A · Juneau, WI · Accident · No injuries · Limited investigation · Final report · Jun 7, 2017 · N31313 · Substantial damage > The pilot’s difficulty controlling the airplane due to his incorrect reinstallation of the wings, which led to a bounced precautionary landing. Contributing to the accident was the failure of the pilot and the mechanic to verify the wings’ angle of incidence. - [NTSB CEN15LA399](https://openairdocs.org/ntsb/CEN15LA399.md): Weatherly 620B · Hancock, WI · Accident · 1 fatal · Limited investigation · Final report · Aug 26, 2015 · N2005C · Destroyed > The in-flight failure of the left wing lower forward attach point under normal loading conditions due to corrosion and fatigue cracking in the center section hinge brackets. Contributing to the accident was the operator's inadequate maintenance and overweight… - [NTSB CEN14IA085](https://openairdocs.org/ntsb/CEN14IA085.md): Beech E90 · Eau Claire, WI · Incident · No injuries · Incident investigation · Final report · Dec 11, 2013 · N60BA · Minor damage > The failure of the copilot’s windshield inner layer due to a peel chip that developed as a result of mechanical and thermal expansion stresses. - [NTSB CEN13LA071](https://openairdocs.org/ntsb/CEN13LA071.md): Scott Ironsides · East Troy, WI · Accident · Minor injuries · Limited investigation · Final report · Nov 24, 2012 · N1879 · Substantial damage > Failure of the steel weld fittings on the right main landing gear. - [NTSB CEN12LA153](https://openairdocs.org/ntsb/CEN12LA153.md): Socata TBM 700 · Madison, WI · Accident · Minor injuries · Limited investigation · Final report · Feb 10, 2012 · N850LM · Substantial damage > The pilot’s failure to ensure that ice and snow were removed from the airplane’s surfaces during the preflight inspection, which resulted in an inadvertent aerodynamic stall after takeoff and loss of control of the airplane. - [NTSB CEN11LA050](https://openairdocs.org/ntsb/CEN11LA050.md): Mcfarland Bill Challenger II · Praire Du Sac, WI · Accident · 1 fatal · Limited investigation · Final report · Nov 1, 2010 · N448WM · Substantial damage > The separation of the fuselage-mounted wing strut attachment fitting for an undetermined reason, which resulted in the separation of the left wing of the airplane. - [NTSB CEN09FA340](https://openairdocs.org/ntsb/CEN09FA340.md): Gulfstream American AA-5B · Humbird, WI · Accident · 2 fatal · Field investigation · Final report · Jun 7, 2009 · N448DM · Substantial damage > The pilot's decision to attempt a visual flight rules flight into an area of known instrument meteorological conditions, which resulted in a loss of control due to spatial disorientation. - [NTSB CHI08LA272](https://openairdocs.org/ntsb/CHI08LA272.md): Socata TB-20 Trinidad · Cassville, WI · Accident · 1 fatal · Limited investigation · Final report · Sep 3, 2008 · N597TB · Substantial damage > The left seat pilot's failure to maintain control of the airplane during a go-around and the inadvertent in-flight opening of the cabin door for undetermined reasons. Contributing to the accident was the distraction of the door opening. - [NTSB CHI08CA287](https://openairdocs.org/ntsb/CHI08CA287.md): Cessna 172M · Three Lakes, WI · Accident · Minor injuries · Data collection · Final report · Sep 1, 2008 · N12809 · Substantial damage > The pilot's failure to attain sufficient altitude to avoid the trees during initial climb. Contributing to the accident were the pilot's failure to ensure the security of the entrance door before takeoff and the unintentional opening of the door. - [NTSB CHI08FA172](https://openairdocs.org/ntsb/CHI08FA172.md): Enstrom Helicopter 480B · Marinette, WI · Accident · No injuries · Field investigation · Final report · Jun 24, 2008 · N480PD · Substantial damage > The pilot inadvertently operating the helicopter at a gross weight greater than its maximum allowable operating weight, and flying the helicopter at an airspeed greater than the never-to-exceed speed for the helicopter’s gross weight condition, resulting in… ## 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" = 'WI' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '0103')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb-findings/0103/cases?state=WI --- 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.