NTSB investigations: Rotax 912ULS series
97 cases on aircraft whose registry engine model is Rotax 912ULS series, where the defining event was Loss of control in flight. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.
Cases per year
| 2008 | 5 |
|---|---|
| 2009 | 7 |
| 2010 | 10 |
| 2011 | 9 |
| 2012 | 11 |
| 2013 | 2 |
| 2014 | 2 |
| 2015 | 8 |
| 2016 | 7 |
| 2017 | 4 |
| 2018 | 6 |
| 2019 | 7 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 5 |
| 2025 | 4 |
| 2026 | 1 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "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 ('55572')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e.\"isDefiningEvent\" AND e.\"tier2Number\" = '240'))
ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
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 ('55572')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '240'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB ERA26LA119Accident · No injuriesClass 4 · LimitedFinal reportTabor W Coates AR-1 · Kissimmee, FLThe pilot’s failure to obtain the proper rotor rpm during the takeoff roll which resulted in a loss of control.NTSB CEN26FA023Accident · 2 fatalClass 3 · FieldPreliminary reportJMB VL-3LSA-912 · Erie, COOn October 19, 2025, about 1531 mountain daylight time, a JMB Aircraft VL-3LSA-912, N594TT, was substantially damaged when it was involved in an accident near Erie, Colorado. The pilot receiving instruction and the flight instructor were fatally injured. The…NTSB ERA25FA332Accident · 1 fatalClass 3 · FieldPreliminary reportCzech Sport Sportcruiser · Fryeburg, MEOn September 4, 2025, about 1418 eastern daylight time, a Czech Sport Aircraft Sportcruiser, N336SC, was substantially damaged when it was involved in an accident near Fryeburg, Maine. The private pilot was fatally injured. The airplane was operated as a…NTSB WPR25FA197Accident · 1 fatalClass 3 · FieldPreliminary reportEvolution Revolt · Mount Vernon, WAOn July 2, 2025, about 1313 Pacific daylight time, an Evolution Aircraft REVOLT weight shift control aircraft (commonly called a trike), N774RS, was substantially damaged when it was involved in an accident near Mount Vernon, Washington. The pilot was fatally…NTSB ERA25FA154Accident · 1 fatalClass 3 · FieldPreliminary reportAero SP Z O O AT-4 LSA · Zellwood, FLOn March 22, 2025, about 0925 eastern daylight time, a Aero SP Z O O AT-4 LSA, N8548U, was substantially damaged when it was involved in an accident near Zellwood, Florida. The private pilot was fatally injured. The airplane was operated as a Title 14 Code of…NTSB WPR25LA068Accident · No injuriesClass 4 · LimitedFinal reportRemos Remos G-3/600 · Brawley, CAThe flight instructor’s lack of remedial action to the student pilot’s inadequate landing flare, which resulted in a hard landing and a loss of directional control.NTSB CEN24LA352Accident · No injuriesClass 4 · LimitedFinal reportJust Highlander · Clarksdale, MSThe pilot’s failure to maintain control during takeoff in gusting crosswind conditions.NTSB ERA24LA296Accident · Serious injuriesClass 4 · LimitedFinal reportMissoula Super Drifter · Lafayette, TNThe pilot's failure to maintain control of the airplane during a go-around in gusting wind conditions.NTSB CEN24LA166Accident · No injuriesClass 4 · LimitedFinal reportRans S-6ES · Emporia, KSThe pilot’s failure to maintain control during the landing flare.NTSB CEN24LA124Accident · Minor injuriesClass 4 · LimitedFinal reportSearey Classic · Winchester, TXThe pilot’s failure to attain/maintain airplane control during a landing approach that resulted in an uncontrolled descent and an impact with the lake.NTSB WPR24FA052Accident · Serious injuriesClass 3 · FieldFinal reportRemos Remos GX · Taylor, AZThe pilot’s decision to attempt takeoff with frost covering the airplane’s wings, which led to an exceedance of the airplane’s critical angle of attack and an aerodynamic stall.NTSB CEN23LA386Accident · Serious injuriesClass 4 · LimitedFinal reportSilverlight AR-1 · Granbury, TXThe pilot’s improper takeoff procedure which resulted in a loss of control during takeoff.NTSB CEN23FA016Accident · 1 fatalClass 3 · FieldFinal reportVans RV-12 · Chandler, TXThe loss of control inflight for reasons that could not be determined.NTSB WPR22LA137Accident · Minor injuriesClass 3 · LimitedFinal reportCzech Sport Aircraft A S Sportcruiser · Lanark, NMThe pilot’s loss of control of the airplane after the inadvertent unlocking and opening of the canopy for reasons that could not be determined based on available evidence.NTSB ERA21FA225Accident · 2 fatalClass 3 · FieldFinal reportFlight Design Ctsw · Winterville, NCThe pilot’s exceedance of the airplane’s critical angle of attack during a go-around, which resulted in an aerodynamic stall and a loss of control.NTSB CEN21LA200Accident · 1 fatalClass 3 · LimitedFinal reportAeropro CZ S R O A240 · Richmond, INThe noninstrument-rated pilot’s intentional flight into instrument meteorological conditions, which resulted in spatial disorientation and loss of airplane control.NTSB CEN21LA181Accident · 1 fatalClass 3 · LimitedFinal reportEvolution Revolt · Seminole, TXThe student pilot’s loss of trike control while maneuvering at low altitude in gusting wind conditions, resulting in an impact with terrain.NTSB ERA21LA073Accident · Minor injuriesClass 3 · LimitedFinal reportFlight Design Ctsw · Marion, NCThe pilot’s failure to maintain airplane control during takeoff, resulting in a rejected takeoff and runway excursion.NTSB ANC21LA004Accident · 2 fatalClass 3 · LimitedFinal reportAutoGyro MTO Sport · Whitewater, KSA loss of control for reasons that could not be determined based on the available evidence.NTSB CEN20CA039Accident · Minor injuriesData collectionFinal reportFlight Design Ctsw · Delaware, OHThe student pilot’s failure to maintain yaw control during takeoff, which resulted in an aborted takeoff and subsequent landing on grassy terrain, during which the airplane bounced and then nosed over.NTSB GAA20CA092Accident · No injuriesData collectionFinal reportCzech Aircraft Works Spol Sro Sportscruiser · Lamar, COThe pilot's distraction due to an open canopy during final approach, which resulted in a loss of altitude and ground impact short of the runway.NTSB GAA20CA053Accident · No injuriesData collectionFinal reportZenair CH701 · Salem, ORThe pilot's failure to maintain lateral control during takeoff, which resulted in impact with terrain. Contributing to the accident was the pilot’s improper decision to make his first flight in an airplane he unfamiliar with before waiting for calm winds.NTSB GAA20CA032Accident · Minor injuriesData collectionFinal reportFlight Design Ctls · Monument Valley, UTThe pilot's failure to maintain lateral control and to attain adequate altitude during takeoff with a quartering tailwind in gusting wind conditions, which resulted in impact with a sandy berm left of the runway.NTSB ERA19FA265Accident · 1 fatalClass 3 · FieldFinal reportVans RV-12 · Lady Lake, FLThe pilot's loss of pitch control due to the in-flight opening of the canopy for reasons that could not be determined.NTSB CEN19FA218Accident · 1 fatalField investigationFinal reportGIbb AR-1 · Hawley, MNAn in-flight loss of control and collision with terrain for reasons that could not be determined based on the available information.NTSB GAA19CA373Accident · No injuriesData collectionFinal reportFlight Design Ctsw · Blairesville, GAThe pilot's failure to maintain airplane control during landing in gusting crosswind conditions, which resulted in a hard landing and landing gear collapse.NTSB ERA18FA235Accident · 1 fatalField investigationFinal reportAirtime Cygnet · Pensacola, FLThe student pilot's loss of aircraft control for undetermined reasons.NTSB GAA18CA499Accident · Minor injuriesData collectionFinal reportEvolution Trikes Revo · Hawthorne, CAThe flight instructor’s failure to maintain lateral control of the weight-shift-controlled aircraft during the landing flare.NTSB WPR18TA212Accident · Minor injuriesFinal reportICP Savannah · Fairfield, UTThe pilot's failure to maintain airplane control after encountering a downdraft on approach to the runway.NTSB CEN18CA293Accident · Minor injuriesData collectionFinal reportJust JA30 Superstol · Oshkosh, WIThe 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 GAA18CA423Accident · No injuriesData collectionFinal reportDaniels Alan L Kitfox Series 7 · Lowville, NYThe pilot’s failure to maintain a proper airspeed during the approach to land, which resulted in an aerodynamic stall.NTSB ERA18LA095Accident · 1 fatalLimited investigationFinal reportRobert Snyder Autogyro Calidus · Beaufort, SCThe gyroplane pilot's failure to maintain rotor speed and aircraft control as he was attempting to return to the runway during a low-altitude simulated engine-out maneuver.NTSB GAA18CA067Accident · No injuriesData collectionFinal reportTodd Foley Zenith 701 · Mount Airy, NCThe pilot’s exceedance of the airplane’s critical angle of attack during takeoff, which resulted in an aerodynamic stall.NTSB CEN17FA334Accident · 1 fatalField investigationFinal reportVans RV-12 · Fishers, INThe pilot's failure to latch the canopy before takeoff, and his failure to maintain pitch control following the in-flight opening of the canopy during the initial climb resulting in a subsequent impact with terrain and ground fire.NTSB GAA17CA319Accident · Minor injuriesData collectionFinal reportMagnaghi Aeronautica SKY Arrow LSA · Chapman, KSThe pilot's failure to maintain lateral/bank control during the takeoff climb in gusting crosswind conditions.NTSB GAA17CA222Accident · No injuriesData collectionFinal reportCostruzioni Aeronautiche Tecna P2004 Bravo · Avalon, CAThe pilot’s failure to maintain the runway heading and the improper landing flare during landing.NTSB GAA17CA020Accident · No injuriesData collectionFinal reportRemos Remos GX · Lowell, ARThe pilot’s decision to take off with a prevailing tailwind and insufficient distance to ensure obstacle clearance, which resulted in a collision with a tree.NTSB GAA16CA469Accident · Minor injuriesData collectionFinal reportRainbow Sky Reach Bushcat · Frankfort, KYThe pilot's exceedance of the airplane's critical angle-of-attack while maneuvering at low altitude, which resulted in an aerodynamic stall.NTSB CEN16LA245Accident · Serious injuriesLimited investigationFinal reportEvolution Revo · Holland, MIThe flight instructor's failure to maintain aircraft control during landing as a result of his failure to adjust the electric trim to the proper position for landing.NTSB GAA16CA300Accident · Minor injuriesData collectionFinal reportCostruzioni Aeronautiche Tecna P2002 Sierra · Moundsville, WVThe pilot's failure to maintain directional control during the go-around in gusty crosswind conditions, which resulted in a collision with trees.NTSB ERA16FA165Accident · 2 fatalField investigationFinal reportVans RV12 · Stevensville, MDThe pilot's failure to maintain airplane control during approach for landing in gusting crosswind conditions, which resulted in an exceedance of the airplane's critical angle of attack and a subsequent aerodynamic stall.NTSB CEN16FA094Accident · 1 fatalField investigationFinal reportCostruzioni Aeronautiche Tecna P92 Echo Super · Arcola, TXThe student pilot's loss of control after exceeding the airplane's critical angle-of-attack, which lead to a power-on, aerodynamic departure stall. Contributing to the accident was the flight instructor's inadequate oversight of the student pilot.NTSB GAA16CA094Accident · Minor injuriesData collectionFinal reportCostruzioni Aeronautiche Tecna P92 Eaglet · Chesapeake, VAThe pilot's loss of directional control during takeoff which resulted in impact with the ground.NTSB ERA15LA339Accident · 1 fatalLimited investigationFinal reportEvolution Revo · Laconia, NHThe sport pilot’s improper decision to operate the weight-shift-control aircraft at low altitude and his subsequent failure to maintain control of the aircraft, which resulted in a subsequent collision with terrain.NTSB CEN15LA359Accident · Serious injuriesLimited investigationFinal reportAeros Aeros 2 · Albuquerque, NMThe ultralight airplane’s encounter with a downdraft in mountainous terrain, which resulted in a descent into trees.NTSB GAA15CA198Accident · No injuriesData collectionFinal reportEvektor-Aerotechnik Sportstar · Eufaula, ALThe pilot's failure to maintain direction control during takeoff, and the pilot's failure to ensure that the canopy of the airplane was secured and locked prior to departure.NTSB ERA15FA245Accident · 1 fatalField investigationFinal reportCzech Sport Piper Sport · Holly Ridge, NCThe pilot’s failure to maintain airplane control after the cockpit canopy opened during initial climb. Contributing to the accident was the pilot’s failure to securely lock the canopy before takeoff.NTSB ERA15LA230Accident · Serious injuriesLimited investigationFinal reportSea & Sky Inc DBA Krucker Acft Cygnet · Panama City Beach, FLThe pilot's loss of aircraft control, which resulted in an aerodynamic stall.NTSB CEN15FA211Accident · 1 fatalField investigationFinal reportHoffman Zenith 701 · Trinidad, COThe noncertificated pilot's failure to maintain airspeed following a loss of engine power while maneuvering at a low altitude, which resulted in the airplane's wing exceeding its critical angle-of-attack and a subsequent aerodynamic stall. The reason for the…NTSB ERA15FA141Accident · 2 fatalField investigationFinal reportColyaer SL Freedom · Boynton Beach, FLAn in-flight loss of control for reasons that could not be determined based on the available evidence.