# NTSB investigations: Rotax 912ULS series, WI

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 CEN25LA204](https://openairdocs.org/ntsb/CEN25LA204.md): Flight Design Ctsw · Pembine, WI · Accident · No injuries · Class 4 · Limited · Final report · Jun 6, 2025 · N499CT · Substantial damage
  > The pilot’s improper flare during landing which resulted in a bounced landing.
- [NTSB CEN21LA222](https://openairdocs.org/ntsb/CEN21LA222.md): Flight Design Ctls · Racine, WI · Accident · Minor injuries · Class 3 · Limited · Final report · May 18, 2021 · N521CT · Destroyed
  > The fatigue failure of the carburetor throttle control cable, which resulted in a partial loss of engine control.
- [NTSB CEN18CA293](https://openairdocs.org/ntsb/CEN18CA293.md): Just JA30 Superstol · Oshkosh, WI · Accident · Minor injuries · Data collection · Final report · Jul 24, 2018 · N45FT · Substantial damage
  > The pilot's failure to maintain adequate airspeed during the initial climb and his exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall.
- [NTSB CEN16FA290](https://openairdocs.org/ntsb/CEN16FA290.md): Flight Design Ctls · Fond du Lac, WI · Accident · 1 fatal · Field investigation · Final report · Jul 28, 2016 · N527TS · Substantial damage
  > Carburetor contamination following exposure to water in the fuel, which resulted in a carburetor malfunction and a partial loss of engine power. Contributing to the accident was the pilot's loss of airplane control that resulted in a stall.
- [NTSB CEN16CA258](https://openairdocs.org/ntsb/CEN16CA258.md): Boyd Kenneth C Rans S-19 · Ephraim, WI · Accident · No injuries · Data collection · Final report · Jul 6, 2016 · N39KB · Substantial damage
  > The pilot's decision to continue the landing from an unstabilized approach which resulted in a loss of control and subsequent hard landing.
- [NTSB GAA15CA159](https://openairdocs.org/ntsb/GAA15CA159.md): Vans RV-12 · Oshkosh, WI · Accident · No injuries · Data collection · Final report · Jun 20, 2015 · N242VA · Substantial damage
  > The pilot's failure to monitor the airplane's glide path during the final approach, which resulted in a low approach path and impact with terrain.
- [NTSB CEN11CA453](https://openairdocs.org/ntsb/CEN11CA453.md): Powrachute Airwolf 912 · Oconto, WI · Accident · Serious injuries · Data collection · Final report · Jun 30, 2011 · N734MP · Substantial damage
  > The powered parachute pilot's decision to execute an in-flight full-flare which resulted in exceeding the angle of attack capabilities of the parachute wing, and subsequent inadvertent stall.
- [NTSB CEN11FA310](https://openairdocs.org/ntsb/CEN11FA310.md): Jurmu Stol CH701 · Pulaski, WI · Accident · 1 fatal · Field investigation · Final report · Apr 29, 2011 · N701MJ · Substantial damage
  > The pilot did not maintain control of the airplane during initial climb, which resulted in an aerodynamic stall. Contributing to the accident was the pilot’s lack of recent flight experience.
- [NTSB CEN09CA478](https://openairdocs.org/ntsb/CEN09CA478.md): P&M Quik GT450 · Oshkosh, WI · Accident · Minor injuries · Data collection · Final report · Jul 30, 2009 · N703PM · Substantial damage
  > The pilot's improper flare and improper recovery from a bounced landing.
- [NTSB CEN09CA407](https://openairdocs.org/ntsb/CEN09CA407.md): Remos G-3/6000 · Oshkosh, WI · Accident · No injuries · Data collection · Final report · Jul 1, 2009 · N261RA · Substantial damage
  > A total loss of total engine power due to fuel exhaustion as a result of the instructor pilot's inadequate preflight inspection. Contributing to the accident was the creased fuel quantity tube.
- [NTSB CHI07CA228](https://openairdocs.org/ntsb/CHI07CA228.md): Flight Design Ctsw · Oshkosh, WI · Accident · No injuries · Data collection · Final report · Jul 24, 2007 · N377CT · Substantial damage
  > The pilot's failure to maintain adequate airspeed during landing which resulted in an inadvertent stall and subsequent impact with the ground.

## 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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('55572'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=55572&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.