NTSB investigations: Amateur-built UNKNOWN ENG
2,047 cases on aircraft whose registry engine model is Amateur-built UNKNOWN ENG. 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, newest first
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 ('99999'))
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 ('99999'))
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 WPR16LA003Accident · Serious injuriesLimited investigationFinal reportCessna TU206G · Fall City, WAThe airplane’s collision with the ground short of the runway for reasons that could not be determined based on the available evidence.NTSB CEN15LA428Accident · Serious injuriesLimited investigationFinal reportSukhoi SU-26 · Slidell, TXThe pilot's attempt to recover from an aerobatic maneuver at too low of an altitude to make a safe recovery.NTSB GAA15CA279Accident · No injuriesData collectionFinal reportBrunzlick Larry R Seawind 3000 Experim · Pelican Lake, WIAbnormal runway contact which precipitated a loss of directional control and impact with water.NTSB ERA15FA353Accident · 1 fatalField investigationFinal reportAero Vodochody L39 · Oneida, TNThe pilot's failure to maintain airplane control following a partial loss of engine power during initial climb. The reason for the partial loss of engine power could not be determined due to extensive postimpact damage.NTSB CEN15LA402Accident · Serious injuriesLimited investigationFinal reportViking Dragonfly · Freeport, ILThe airplane’s degraded climb performance due to its being over its maximum gross weight and a hole in the engine exhaust.NTSB CEN15LA350Accident · Minor injuriesLimited investigationFinal reportJal R Dennis Trixy Princess · Midland, TXThe pilot's inadequate preflight planning during which he failed to account for the high-density altitude conditions and high gross weight, which degraded the gyroplane's climb performance and resulted in a hard landing.NTSB WPR15LA235Accident · Minor injuriesLimited investigationFinal reportCleveland Allan B Nieuport 11# · Bellingham, WAA partial loss of engine power for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or anomalies that would have precluded normal operation.NTSB ERA15LA304Accident · No injuriesLimited investigationFinal reportBoard James A Zenith 601 HD · Danville, KYThe pilot's improper adjustment of the propeller blade angle, which resulted in inadequate engine thrust, and his decision to continue the takeoff despite the excessively long takeoff roll.NTSB WPR15LA230Accident · No injuriesLimited investigationFinal reportGrumman G164 - B · Princeton, CAThe loss of engine power during an agricultural application flight due to a cylinder failure.NTSB GAA15LA225Accident · Serious injuriesLimited investigationFinal reportUltramagic N250 - NO Series · Peoria, AZThe pilot's failure to ensure that the passengers remained secure in the basket during deflation after landing, which resulted in a passenger falling out of the basket and sustaining a serious injury when a wind gust caught the envelope and tipped the basket…NTSB ERA15LA291Accident · No injuriesLimited investigationFinal reportSontonastaso Mosquito · Winchendon, MAA partial loss of engine power due to a faulty electrical wiring crimp in the engine’s ignition system.NTSB CEN15LA351Accident · Minor injuriesLimited investigationFinal reportRoberts Bruce W Vans Aircraft RV 9A · Land O' Lakes, WIThe pilot’s failure to maintain a proper descent rate, which resulted in a hard landing.NTSB WPR15LA218Accident · No injuriesLimited investigationFinal reportDafoe Gerald W Tcow Smith CUB · Cascade, IDA gouge in the right brake master cylinder piston O-ring, which resulted in a loss of brake pressure and reduced effectiveness after landing. Contributing to the accident was the pilot’s decision to operate the airplane with an ongoing brake issue.NTSB GAA15CA180Accident · No injuriesData collectionFinal reportPietenpol AIR Camper · Burlington, WIThe student pilot's failure to maintain pitch control during the landing touchdown, resulting in a hard landing.NTSB GAA15CA139Accident · Minor injuriesData collectionFinal reportRandall W Grandpre CH-701 Zenith · Quincy, WAThe pilot's inadequate selection of a take-off area, resulting in a collision with obstacles and a loss of directional control.NTSB GAA15CA132Accident · Minor injuriesData collectionFinal reportErvin Rex H Bear Hawk · Merrill, ORThe pilot's failure to maintain directional control during landing, which resulted in a ground loop.NTSB WPR15LA170Accident · Serious injuriesLimited investigationFinal reportDuenas Pulsar III · Hurricane, UTAn elevated oil temperature and subsequent total loss of engine power for reasons that could not be determined based on the available information.NTSB CEN15FA240Accident · 1 fatalField investigationFinal reportYakovlev YAK 52 · Syracuse, KSThe pilot’s failure to maintain airplane control while maneuvering at low altitude, which resulted in the airplane’s wing exceeding its critical angle-of-attack and a subsequent aerodynamic stall .NTSB GAA15CA093Accident · No injuriesData collectionFinal reportRogers Homer/Rogers Sheila RV 6A · Lorain/Elyria, OHThe pilot's failure to maintain airplane attitude control during the landing flare, which resulted in an aerodynamic stall, hard landing, and runway excursion.NTSB ERA15LA205Accident · Minor injuriesLimited investigationFinal reportJerome D Fischer RV-7 · Bartow, GAThe pilot's use of the improper fuel grade for the engine, which resulted in detonation, engine damage, and loss of engine power.NTSB DCA15CA117Accident · No injuriesData collectionFinal reportTitan Aerospace Holdings Solara 50 · Otto, NMstructural failure of the left wing due to an overspeed condition.NTSB CEN15LA235Accident · Serious injuriesLimited investigationFinal reportLathrop Steven A B8M · Ravenna, MIA total loss of engine power due to carburetor icing.NTSB ERA15LA197Accident · Serious injuriesLimited investigationFinal reportJames Kilroy Pitts Model 12 · LaGrange, GAA partial loss of engine power after takeoff 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 ERA15LA172Accident · No injuriesClass 3 · LimitedFinal reportMerian Richard F RV 8 · Tuscaloosa, ALThe RV-8 pilot's failure to maintain adequate clearance from the RV-6 while maneuvering during an air show, which resulted in a midair collision.NTSB WPR15LA131Accident · Serious injuriesLimited investigationFinal reportMccurry Charles P F 1 Rocket · Sedona, AZThe partial loss of engine power during final approach for reasons that could not be determined during postaccident examination of the engine.NTSB WPR15LA130Accident · Minor injuriesLimited investigationFinal reportVans RV6A · Green Valley, AZThe total loss of engine power during initial climb due to the disconnection of both fuel pump power wires.NTSB CEN15CA168Accident · No injuriesData collectionFinal reportJones Ronald C Bearhawk · Walters, OKThe pilot did not maintain control of the airplane during the landing roll at night on an unlit grass strip.NTSB WPR15FA121Accident · Serious injuriesField investigationFinal reportRyan Aeronautical ST3KR · Santa Monica, CAA total loss of engine power during initial climb when the carburetor main metering jet became unseated, which led to an extremely rich fuel-to-air ratio. Contributing to the accident was the lack of adequate carburetor maintenance instructions. Contributing…NTSB ERA15FA139Accident · 1 fatalField investigationFinal reportAdams Donald L DA1 · Sebring, FLA partial loss of engine power for reasons that could not be determined based on the available evidence.NTSB CEN15CA155Accident · No injuriesData collectionFinal reportGaddis Michael Exec 162 F · Plymouth, INThe failure of the helicopter's main drive belt resulting in the pilot performing a forced landing, during which the helicopter's fuselage was substantially damage.NTSB CEN15FA154Accident · 1 fatalField investigationFinal reportRose Thunder Mustang · Helotes, TXThe pilot’s failure to maintain terrain clearance from terrain after initiating an aerobatic maneuver at a low altitude.NTSB WPR15LA104Accident · No injuriesLimited investigationFinal reportScottish Bulldog - 120 121 · Hayward, CAA total loss of engine power during the initial climb due to fuel contamination. Contributing to the accident was the pilot’s inadequate preflight inspection of the fuel system.NTSB CEN15LA131Accident · No injuriesLimited investigationFinal reportBell-Watson 47 G · North Little Rock, ARThe flight instructor’s failure to maintain adequate rotor rpm during the practice touchdown autorotation, which resulted in a subsequent loss of helicopter control and impact with terrain.NTSB CEN15WA082Accident · 2 fatalForeign investigationGates Learjet 25D · Champoton, MexicoNTSB ERA15LA077Accident · No injuriesLimited investigationFinal reportThomas R Wade Revelation · Ellisville, MSThe failure of the uncertified engine's front connecting rod needle bearing, which resulted in damage to the front piston and a subsequent loss of engine power. Contributing to the accident was the pilot’s decision to operate the airplane with the uncertified…NTSB ERA15LA075Accident · 1 fatalLimited investigationFinal reportJohnson David Earl Renegade Spirit · Brunswick, GAThe pilot's decision to fly the airplane with known engine deficiencies and his subsequent exceedance of the airplane's critical angle of attack following a loss of engine power, which resulted in an aerodynamic stall and loss of control after takeoff.NTSB CEN15LA084Accident · Minor injuriesLimited investigationFinal reportEnstrom 280FX · Fort Lupton, COThe loss of engine power during cruise flight for reasons that could not be determined based on the available information.NTSB WPR15CA053Accident · No injuriesData collectionFinal reportStafford Wayne H Glastar · Monroe, WAThe pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and encounter with terrain.NTSB WPR15LA052Accident · Minor injuriesLimited investigationFinal reportNanchang CJ-6 · Mesa, AZThe total loss of engine power during takeoff following a touch-and-go landing for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.NTSB CEN15LA042Accident · Minor injuriesLimited investigationFinal reportMosier Robert S Mosquito XET · Angleton, TXThe pilot’s failure to maintain adequate clearance from trees during a precautionary landing. Contributing to the accident was the pilot’s inadequate preflight inspection during which he failed to detect a loose drive belt, which resulted in an in-flight…NTSB CEN15LA028Accident · 1 fatalLimited investigationFinal reportHuebbe Sonex HB · Plainview, ILThe loss of engine power during cruise flight due to a fatigue fracture of the crankshaft, which resulted in a forced landing on unsuitable terrain.NTSB CEN15LA023Accident · Serious injuriesLimited investigationFinal reportTuberville Zodiac XL · Mountain Home, ARThe partial loss of engine power during takeoff for reasons that could not be determined because postaccident engine examinations revealed no anomalies that would have precluded normal operation.NTSB WPR15FA016Accident · 1 fatalField investigationFinal reportSonex Sonex Trigear · Fawnskin, CAThe pilot's failure to maintain airspeed after takeoff, which resulted in an exceedance of the airplane's critical angle of attack and a subsequent aerodynamic stall/spin at low altitude. Contributing to the accident was the airplane's reduced climb…NTSB CEN15WA129Accident · No injuriesForeign investigationSiai-Marchetti S.205 18R · Speck-Fehraltorf, SwitzerlandNTSB CEN15LA020Accident · No injuriesLimited investigationFinal reportKovars Gary D Zenith Zodiak 601XL · Richland Center, WIThe loss of engine power due to carburetor icing.NTSB ERA15CA005Accident · No injuriesData collectionFinal reportHPH 304CZ · Pikeville, TNA loss of aerodynamic lift, which resulted in an off-airport landing and subsequent impact with a pole.NTSB WPR15LA001Accident · 1 fatalLimited investigationFinal reportGaston Thomas D Thunder Mustang · Council, IDThe pilot's failure to maintain control while maneuvering for landing following a loss of oil pressure. Contributing to the accident was foreign material contamination of the oil system due to improper maintenance.NTSB ERA14FA461Accident · 1 fatalField investigationFinal reportEagle R&D Helicycle · Gallatin, TNThe pilot's decision to fly the improperly balanced helicopter at high speed and low altitude, which resulted in a loss of control and collision with terrain. Contributing to the accident were the pilot's depression and resulting degradation of executive…NTSB ANC14CA086Accident · No injuriesData collectionFinal reportMiller Gregory S Bushwacker · Iliamna, AKThe pilot's failure to maintain control on landing, resulting in the collision with terrain.NTSB CEN14CA514Accident · No injuriesData collectionFinal reportStanley Arthur Freeman Zodiac 601XL · Fremont, NEThe pilot's improper landing flare which resulted in a hard landing.