# NTSB investigations, WI: Physical

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 CEN23FA369](https://openairdocs.org/ntsb/CEN23FA369.md): Piper J5A · Iola, WI · Accident · 1 fatal · Class 3 · Field · Final report · Aug 19, 2023 · N35417 · Substantial damage
  > The pilot’s failure to maintain control of the airplane after landing on a grass taxiway with a tailwind, which resulted in a nose over.
- [NTSB CEN23FA333](https://openairdocs.org/ntsb/CEN23FA333.md): Rotorway 162F · Oshkosh, WI · Accident · 2 fatal · Class 3 · Field · Final report · Jul 29, 2023 · N193AZ · 2 aircraft · Destroyed
  > The failure of the gyroplane pilot to see and avoid the helicopter while maneuvering in the traffic pattern. Contributing to the accident was the gyroplane pilot’s performance of a prohibited maneuver in the traffic pattern.
- [NTSB CEN23FA239](https://openairdocs.org/ntsb/CEN23FA239.md): Mooney M20R · Watertown, WI · Accident · 2 fatal · Class 3 · Field · Final report · Jun 14, 2023 · N1025C · Destroyed
  > The pilot’s loss of control due to spatial disorientation while operating in instrument meteorological conditions. Contributing to the accident was the pilot’s impairment from the prohibited substance; however, the extent of impairment could not be determined.
- [NTSB CEN22FA021](https://openairdocs.org/ntsb/CEN22FA021.md): Beech B36TC · Lena, WI · Accident · 1 fatal · Class 3 · Field · Final report · Oct 27, 2021 · N75RM · Substantial damage
  > Impairment and subsequent incapacitation of the pilot for reasons that could not be determined. The incapacitation resulted in a loss of engine power due to fuel starvation. Likely contributing was pilot hypoxia due to altitude exposure, possibly worsened by…
- [NTSB CEN18FA149](https://openairdocs.org/ntsb/CEN18FA149.md): Eurocopter AS 350 B2 · Hazelhurst, WI · Accident · 3 fatal · Field investigation · Final report · Apr 27, 2018 · N127LN · Destroyed
  > The pilot's loss of helicopter control as a result of fatigue during cruise flight at night.
- [NTSB CEN16LA206](https://openairdocs.org/ntsb/CEN16LA206.md): Beech A23-24 · Clintonville, WI · Accident · No injuries · Limited investigation · Final report · May 30, 2016 · N5771V · Substantial damage
  > The pilot’s failure to maintain the proper glidepath during the night visual approach, which resulted in impact with a runway threshold light, and his improper landing flare, which resulted in a hard landing. Contributing to the accident was the pilot's…
- [NTSB CEN15LA195](https://openairdocs.org/ntsb/CEN15LA195.md): Quad City Challenger - II · Chippewa Falls, WI · Accident · 1 fatal · Limited investigation · Final report · Apr 11, 2015 · N30796 · Substantial damage
  > The pilot’s incapacitation due to a cardiovascular event, which resulted in a loss of control and subsequent impact with terrain.
- [NTSB CEN14LA336](https://openairdocs.org/ntsb/CEN14LA336.md): Northwing Design Apache Sport · Omro, WI · Accident · 1 fatal · Limited investigation · Final report · Jul 3, 2014 · N2725T · Substantial damage
  > The pilot’s failure to maintain adequate airspeed to compensate for a newly installed wing, which resulted in the aircraft stalling and the subsequent loss of control.
- [NTSB CEN12LA133](https://openairdocs.org/ntsb/CEN12LA133.md): Cessna 150J · Denmark, WI · Accident · Serious injuries · Limited investigation · Final report · Jan 12, 2012 · N60676 · Substantial damage
  > The pilot’s loss of control due to his alcohol impairment. Contributing to the accident was the pilot's decision to fly at night with a known interior lighting malfunction.
- [NTSB CEN09LA263](https://openairdocs.org/ntsb/CEN09LA263.md): Laseure Sonerai II · Grantsburg, WI · Accident · 1 fatal · Limited investigation · Final report · Apr 22, 2009 · N232PE · Destroyed
  > The pilot's failure to maintain airspeed during initial climb which resulted in a stall/spin. Contributing to the accident was the degraded engine performance.
- [NTSB CEN09FA070](https://openairdocs.org/ntsb/CEN09FA070.md): Piper PA46-500TP · Marshfield, WI · Accident · 3 fatal · Field investigation · Final report · Nov 23, 2008 · N67TE · Destroyed
  > The pilot's failure to maintain control of the airplane during final approach for landing in night, visual meteorological conditions for undetermined reasons.

## 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", '0201'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/0201/cases?state=WI

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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.