# NTSB investigations: Rotax 912UL series

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.

Page 2 of 2 · 70 cases

## Cases, newest first

- [NTSB WPR11FA138](https://openairdocs.org/ntsb/WPR11FA138.md): AirBorne WindSport Edge XT-912-L · Hanapepe, HI · Accident · 2 fatal · Field investigation · Final report · Feb 15, 2011 · N29EP · Substantial damage
  > The flight instructor did not maintain aircraft control while maneuvering at low altitude. Contributing to the accident was the inadvertent application of the choke, which resulted in a momentary interruption of engine power.
- [NTSB WPR11LA039](https://openairdocs.org/ntsb/WPR11LA039.md): Lansdorf Qualt · Sonoma, CA · Accident · Serious injuries · Limited investigation · Final report · Nov 6, 2010 · N3215S · Substantial damage
  > A partial loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB ERA11CA045](https://openairdocs.org/ntsb/ERA11CA045.md): Evolution Revo · Gransonville, MD · Accident · No injuries · Data collection · Final report · Oct 10, 2010 · N611TX · Substantial damage
  > The pilot's improper recovery from a bounced landing and the certificated flight instructor's inadequate remedial action, which resulted in an aerodynamic stall during a go-around.
- [NTSB ERA10FA435](https://openairdocs.org/ntsb/ERA10FA435.md): North Wing Scout X-C · Amherst, VA · Accident · 2 fatal · Field investigation · Final report · Aug 21, 2010 · N417JN · Substantial damage
  > The pilot's loss of aircraft control for an undetermined reason.
- [NTSB CEN10LA484](https://openairdocs.org/ntsb/CEN10LA484.md): Rammel Thomas W Searey · Cokato, MN · Accident · Serious injuries · Limited investigation · Final report · Aug 8, 2010 · N452TR · Substantial damage
  > Separation of the composite skin on one of the three propeller blades that resulted in an in-flight vibration, and the pilot's failure to maintain clearance with the water while maneuvering to avoid obstacles in preparation for a precautionary landing.
- [NTSB ERA10LA100](https://openairdocs.org/ntsb/ERA10LA100.md): Fpna A-22 Valor · Hunting Island, SC · Accident · No injuries · Limited investigation · Final report · Dec 23, 2009 · N721FP · Substantial damage
  > Maintenance personnel's inadequate inspection of the oil system's fittings during a routine oil servicing, which resulted in oil starvation due to a loose and/or detached oil line B-nut fitting that led to the engine seizing while in flight.
- [NTSB WPR09LA413](https://openairdocs.org/ntsb/WPR09LA413.md): Antares US MA-34R · San Jose, CA · Accident · Serious injuries · Limited investigation · Final report · Aug 24, 2009 · N2356W · Substantial damage
  > The pilot's failure to maintain aircraft control during engine startup, which resulted in a collision with parked aircraft. Contributing to the accident was the engine's inadvertent increase to high power for undetermined reasons.
- [NTSB WPR09LA386](https://openairdocs.org/ntsb/WPR09LA386.md): Airborne Windsports PTY XT-912-L · Lihue, HI · Accident · Serious injuries · Limited investigation · Final report · Aug 2, 2009 · N44VZ · Substantial damage
  > The flight instructor's failure to maintain control of the airplane following an in-flight encounter with turbulence during descent.
- [NTSB CEN09CA362](https://openairdocs.org/ntsb/CEN09CA362.md): Airborne Windsports PTY XT-912 · Alamogordo, NM · Accident · No injuries · Data collection · Final report · Jun 15, 2009 · N594VZ · Substantial damage
  > The failure of the pilot to maintain directional control while landing with gusting winds.
- [NTSB CHI08LA214](https://openairdocs.org/ntsb/CHI08LA214.md): Bolenbaugh Phillip William Rans S-6ES · Oshkosh, WI · Accident · Minor injuries · Limited investigation · Final report · Jul 27, 2008 · N402PB · Substantial damage
  > The pilot's improper landing flare, which resulted in a hard landing and subsequent collapse of the nose landing gear.
- [NTSB DFW08CA024](https://openairdocs.org/ntsb/DFW08CA024.md): Pipistrel Sinus 912 · Holt, FL · Accident · Minor injuries · Data collection · Final report · Nov 3, 2007 · N457EZ · Substantial damage
  > The pilot's failure to maintain clearance from terrain. A contributing factor was the gusting crosswind.
- [NTSB CHI08CA004](https://openairdocs.org/ntsb/CHI08CA004.md): Progressive Aerodyne Searey · Cokato, MN · Accident · Serious injuries · Data collection · Final report · Oct 4, 2007 · N452TR · Substantial damage
  > The inadequate flare by the pilot during landing. Contributing factors were the lack of an endorsement by the pilot, the lack of total experience in the type of aircraft by the pilot, and the glassy water.
- [NTSB CHI07CA275](https://openairdocs.org/ntsb/CHI07CA275.md): Weaver, David A Pulsar 912XP · Plato Center, IL · Accident · Minor injuries · Data collection · Final report · Aug 21, 2007 · N912GR · Substantial damage
  > the pilot's failure to maintain airspeed. Factors were the pilot's lack of familiarity with the aircraft and pilot's failure to maintain altitude.
- [NTSB CHI07CA223](https://openairdocs.org/ntsb/CHI07CA223.md): Bush Caddy USA LSA · Chadron, NE · Accident · Minor injuries · Data collection · Final report · Jul 20, 2007 · N714Q · Substantial damage
  > The pilot's failure to maintain control of the aircraft during landing. A contributing factor was the gusty, crosswind condition.
- [NTSB LAX07CA228](https://openairdocs.org/ntsb/LAX07CA228.md): Dta Sari Combo FC 912 · San Luis Obispo, CA · Accident · No injuries · Data collection · Final report · Jul 18, 2007 · N599CA · Substantial damage
  > The student pilot's improper flare, which resulted in a hard landing. Also causal was the instructor's inadequate supervision.
- [NTSB LAX07LA218](https://openairdocs.org/ntsb/LAX07LA218.md): Clement Zenith Zodiac CH601 · Rosamond, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 14, 2007 · N239PC · Substantial damage
  > A total loss of engine power during approach due to the improper idle screw/stop adjustment. A factor contributing to the accident was deteriorated fuel.
- [NTSB MIA07LA120](https://openairdocs.org/ntsb/MIA07LA120.md): John D. Williams XT-912 · Newport News, VA · Accident · Minor injuries · Limited investigation · Final report · Jul 12, 2007 · N133W · Substantial damage
  > The pilot's failure to comply with FAA and engine manufacturer directives resulting in deterioration of fuel system components by fuel containing ethanol and blockage of the fuel filter by contaminants.
- [NTSB MIA07CA069](https://openairdocs.org/ntsb/MIA07CA069.md): Aeroprakt A-22 · Keenansville, FL · Accident · No injuries · Data collection · Final report · Mar 31, 2007 · N199DA · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll on a wet grass runway. A factor associated with the accident was the wet runway.
- [NTSB LAX07LA055](https://openairdocs.org/ntsb/LAX07LA055.md): Higher Class Super Hornet · Chandler, AZ · Accident · Serious injuries · Limited investigation · Final report · Dec 10, 2006 · N45YB · Substantial damage
  > A loss of aircraft control for undetermined reasons.
- [NTSB CHI04LA207](https://openairdocs.org/ntsb/CHI04LA207.md): Skystar Kitfox · Westfield, IN · Accident · No injuries · Limited investigation · Final report · Aug 3, 2004 · N197BR · Substantial damage
  > the failure of the pilot to maintain adequate airspeed resulting in a stall.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('55571'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=55571&page=2

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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.
