NTSB investigations: Amateur-built UNKNOWN ENG
2,048 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 CEN10LA442Accident · 1 fatalLimited investigationFinal reportLunceford Sparrowhawk II · Tell City, INThe pilot's loss of control of the gyroplane for undetermined reasons.NTSB CEN10CA441Accident · Minor injuriesData collectionFinal reportWolseley Motors SE5-A · Seymour, INA loss of engine power during initial climb due to fuel exhaustion. Contributing to the accident was the pilot's diverted attention while attempting to restart the engine.NTSB WPR10LA366Accident · 1 fatalLimited investigationFinal reportClark RV-9A · Oregon City, ORThe pilot's decision to depart with known mechanical anomalies and the loss of engine power for undetermined reasons.NTSB ERA10LA365Accident · 1 fatalLimited investigationFinal reportTexas Air Ventures Comp AIR 8 · Mount Pleasant, SCThe pilot's failure to retrim the airplane and maintain aircraft control during an aborted landing, which resulted in an inadvertent stall. Contributing to the accident was the pilot's lack of experience in the accident airplane make and model.NTSB CEN10LA409Accident · 1 fatalLimited investigationFinal reportDavis John TR-4 · Denton, TXA loss of engine power and the pilot’s subsequent loss of control for undetermined reasons.NTSB CEN10CA421Accident · No injuriesData collectionFinal reportNord 3202 · Oshkosh, WIThe pilot's failure to maintain directional control during the landing roll.NTSB ERA10LA362Accident · No injuriesLimited investigationFinal reportGarlick Helicopters OH-58A+ · Rowley, MAThe failure of the power turbine governor internal driveshaft bearings, resulting in the failure of the governor.NTSB ERA10CA352Accident · No injuriesData collectionFinal reportVans RV8 · Port Orange, FLThe pilot's failure to maintain directional control during the landing rollout.NTSB CEN10CA395Accident · No injuriesData collectionFinal reportBell OH-58A · Roswell, NMThe pilot's failure to maintain clearance from transmission wires.NTSB CEN10CA376Accident · No injuriesData collectionFinal reportWells Terry Hula Girl · Wellington, COA partial loss of engine power due to the inadequate design of the engine cowling.NTSB WPR10LA317Accident · Serious injuriesLimited investigationFinal reportWorgull Hornet · Camp Verde, AZThe in-flight separation of the exhaust clamps for an undetermined reason, which resulted in the exhaust system striking the wooden propeller.NTSB ERA10CA332Accident · No injuriesData collectionFinal reportCrabtree RV6 · Sewanne, TNThe pilot's improper recovery from a bounced landing.NTSB WPR10LA310Accident · Serious injuriesLimited investigationFinal reportRice KR-2 · Richfield, UTA loss of engine power during initial climb due to a carburetor malfunction.NTSB ERA10LA328Accident · No injuriesLimited investigationFinal reportParks J L/Dreffin D Seawind 3000 · Sanibel Island, FLAn overstress failure of the elevator. Contributing to the accident was the owner/builder's modification of the experimental airplane beyond the recommendations of the kit manufacturer.NTSB WPR10LA294Accident · No injuriesLimited investigationFinal reportSchleicher Alexander ASH 26 E · Parowan, UTThe pilot's failure to see and avoid the other glider climbing in the same thermal.NTSB WPR10CA288Accident · No injuriesData collectionFinal reportBurkhart Grob G103C Twin III Acro · Minden, NVThe pilot's encounter with an area of degraded lift during cruise flight, resulting in a forced off-airport landing.NTSB CEN10CA304Accident · No injuriesData collectionFinal reportBordelon Kitfox IV · Stanton, MNThe pilot’s inadvertent propeller blade pitch change and subsequent loss of forward thrust.NTSB ANC10CA050Accident · No injuriesData collectionFinal reportCessna 180 · Kenai, AKThe pilot's selection of unsuitable terrain for landing, resulting in the airplane nosing over during taxi.NTSB CEN10CA301Accident · No injuriesData collectionFinal reportCessna 421B · Anderson, INThe pilot’s failure to establish proper rotation and liftoff speed during the takeoff roll.NTSB ERA10LA294Accident · Minor injuriesLimited investigationFinal reportSwanson RV-9A · Ashland, VAThe pilot's failure to obtain the proper touchdown point during a forced landing in gusting wind. Contributing to the accident was a total loss of engine power, likely due to carburetor ice.NTSB CEN10LA274Accident · 1 fatalLimited investigationFinal reportHenney Michael A Vans RV-6A · Granbury, TXThe loss of control for undetermined reasons.NTSB WPR10LA250Accident · Serious injuriesLimited investigationFinal reportWildman RV6-A · Columbia, CAThe pilot’s inadequate compensation for the gusting crosswind and improper landing flare.NTSB ERA10LA266Accident · 2 fatalLimited investigationFinal reportAerostar S A YAK-52 · Jensen Beach, FLThe pilot's decision to perform an aerobatic maneuver at a low altitude, which resulted in insufficient clearance from the water to conduct a recovery. Contributing to the accident was the airplane’s extended landing gear, which resulted in a degradation of…NTSB ERA10TA261Accident · No injuriesFinal reportBell 407 · Abingdon, VAThe improper repair of an engine component by a repair facility, which resulted in a complete loss of engine power. Contributing to the accident was the failure of the repair facility to recognize that an improper repair had been accomplished, which allowed…NTSB CEN10LA242Accident · No injuriesLimited investigationFinal reportJorritsma Jerrold S Berkut · Loveland, COA loss of engine power due to a malfunction of the fuel controller resulting in a compressor stall.NTSB ERA10LA256Accident · Serious injuriesLimited investigationFinal reportSwezey T/Molnar D Vans RV-10 · Ridgeland, SCAn explosion and fire of unknown origin during taxi from landing. Contributing to the accident was the builder's noncompliance with the manufacturer's suggested designed fuel system.NTSB WPR10CA222Accident · No injuriesData collectionFinal reportCubcrafters CC11-160 · Los Alamos, CAThe pilot's inadequate compensation for the crosswind conditions resulting in the loss of directional control while landing.NTSB WPR10CA236Accident · No injuriesData collectionFinal reportBeech 76 · Willows, CAThe student pilot's inadequate compensation for the gusting crosswind conditions and the certified flight instructor's inadequate supervision, resulting in a loss of directional control during landing.NTSB ERA10LA229Accident · No injuriesLimited investigationFinal reportDalin Ronald K T-51 Mustang · Lakeland, FLThe builder’s use of inadequate material for the exhaust manifold adapters resulting in heat damage and chafing of the crankshaft synchronizer and timing wires that rendered an inoperative ignition system and loss of engine power.NTSB WPR10FA199Accident · No injuriesField investigationFinal reportBoeing 737-3H4 · Los Angeles, CAThe tug operator’s failure to comply with company procedures when parking an unoccupied baggage tug, and the failure of the tug’s seat switch to disengage the electric motor when weight was removed from the driver’s seat.NTSB ERA10LA216Accident · No injuriesLimited investigationFinal reportSmith Richard D JR Revolution Mini 500 · Middleboro, MAA loss of engine coolant, which resulted in a loss of engine power during the pilot’s attempt to cushion a precautionary landing. Contributing to the accident was a disconnected engine coolant hose and the pilot's inadequate preflight inspection.NTSB CEN10LA171Accident · No injuriesLimited investigationFinal reportLoehr Thomas H Zenith Stol CH701 · Eldon, MOA loss of engine thrust during takeoff due to the failure of the engine-to-propeller drive belts as a result of improper belt tension. Contributing to the accident was the non-certificated pilot's improper preflight inspection.NTSB WPR10LA160Accident · Serious injuriesLimited investigationFinal reportMigas RV9-A · Twin Falls, IDThe pilot's loss of directional control during landing roll for an undetermined reason.NTSB WPR10LA130Accident · Minor injuriesLimited investigationFinal reportNanchang China CJ-6A · Mesa, AZSeparation of the cylinder from the engine during cruise flight due to fatigue in the studs attaching it to the engine casing.NTSB CEN10FA115Accident · 3 fatalField investigationFinal reportPiper PA-25-235 · Boulder, COThe failure of both pilots to see and avoid the other resulting in a midair collision. Contributing to the accident was the lack of perceived visual relative motion of the Piper and the Cirrus to the pilot of each airplane, the terrain background, and the…NTSB CEN10FA097Accident · 4 fatalField investigationFinal reportMitsubishi MU-2B-60 · Elyria, OHThe pilot's failure to maintain adequate airspeed during the instrument approach, which resulted in an aerodynamic stall and impact with terrain.NTSB WPR10CA109Accident · No injuriesData collectionFinal reportYoung Dee C Kitfox II · St. Anthony, IDThe pilot's improper landing flare, which resulted in a hard landing.NTSB ERA10LA085Accident · Serious injuriesLimited investigationFinal reportTail Feather Sea Rey · Sanibel Island, FLThe pilot’s failure to add power during a low-level turn, which resulted in a loss of airspeed and a subsequent stall.NTSB CEN10LA050Accident · 1 fatalLimited investigationFinal reportAugustine David L Sonex · Burnet, TXThe pilot’s failure to maintain aircraft control, resulting in an aerodynamic stall. Contributing to the accident was the loss of engine power due to a clogged fuel screen that resulted in fuel starvation caused by the builder's inappropriate use of a fuel…NTSB ERA10LA050Accident · Minor injuriesLimited investigationFinal reportGrumman Aircraft ENG G-111 · Ft Pierce, FLA total loss of left engine power and subsequent failure of the airplane to maintain airspeed and altitude on the remaining engine for undetermined reasons.NTSB CEN10LA035Accident · Serious injuriesLimited investigationFinal reportBlanik L-13 · Middlefield, OHThe student pilot's improper control inputs which resulted in the inadvertent stall of the glider.NTSB WPR10LA040Accident · Serious injuriesLimited investigationFinal reportHallbauer Dragonfly Mark II · Las Vegas, NVThe CFI's failure to maintain directional control of the airplane during takeoff.NTSB WPR10LA039Accident · Minor injuriesLimited investigationFinal reportSauer KR-2S · Glendale, AZA loss of engine power due to fuel starvation as a result of a reduced fuel flow to the engine resulting from a misrouted fuel tank vent line, during initial climb.NTSB WPR10CA023Accident · No injuriesData collectionFinal reportBoykin Stephen Vance Rotorway E · Meiners Oaks, CAThe pilot's improper preflight planning which resulted in a takeoff with a tailwind.NTSB CEN10LA001Accident · Serious injuriesLimited investigationFinal reportDusenberry Mark J 1905 Wright Flyer · Dayton, OHThe pilot's failure to maintain control of the airplane during the flight, which resulted in an aerodynamic stall.NTSB ANC09CA109Accident · No injuriesData collectionFinal reportShort Bros. & Harland SC7 Series · Skwentna, AKThe pilot's failure to maintain directional control while landing on a rough, soft, and narrow airstrip.NTSB ERA09LA530Accident · Serious injuriesLimited investigationFinal reportBeech A36 · Fairmont, WVThe pilot's delay in aborting the takeoff, resulting in an overun. Contributing to the accident was the overweight condition of the airplane.NTSB CEN09CA592Accident · No injuriesData collectionFinal reportBordelon Kitfox IV · Dodge Center, MNThe pilot's improper glide path during landing.NTSB CEN09CA583Accident · No injuriesData collectionFinal reportSierra E5A Replica · Port Huron, MIThe pilot's failure to maintain aircraft control during landing.NTSB CEN09LA572Accident · Minor injuriesLimited investigationFinal reportWright Bruce M Avid Flyer · Hitchcock, TXA total loss of engine power for undetermined reasons.