# NTSB investigations, WI: Aircraft structural failure

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 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 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 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 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.

## 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 s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '337' 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/337/sequence?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.