NTSB investigations: Amateur-built UNKNOWN ENG, 2014
46 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 per year
| 1964 | 11 |
|---|---|
| 1965 | 12 |
| 1966 | 20 |
| 1967 | 16 |
| 1968 | 7 |
| 1969 | 11 |
| 1970 | 14 |
| 1971 | 16 |
| 1972 | 10 |
| 1973 | 12 |
| 1974 | 17 |
| 1975 | 13 |
| 1976 | 20 |
| 1977 | 19 |
| 1978 | 25 |
| 1979 | 18 |
| 1980 | 20 |
| 1981 | 19 |
| 1982 | 29 |
| 1983 | 21 |
| 1984 | 26 |
| 1985 | 22 |
| 1986 | 27 |
| 1987 | 31 |
| 1988 | 29 |
| 1989 | 15 |
| 1990 | 28 |
| 1991 | 20 |
| 1992 | 22 |
| 1993 | 27 |
| 1994 | 26 |
| 1995 | 31 |
| 1996 | 30 |
| 1997 | 22 |
| 1998 | 30 |
| 1999 | 34 |
| 2000 | 49 |
| 2001 | 45 |
| 2002 | 64 |
| 2003 | 67 |
| 2004 | 58 |
| 2005 | 70 |
| 2006 | 59 |
| 2007 | 74 |
| 2008 | 63 |
| 2009 | 62 |
| 2010 | 62 |
| 2011 | 44 |
| 2012 | 58 |
| 2013 | 43 |
| 2014 | 46 |
| 2015 | 40 |
| 2016 | 39 |
| 2017 | 43 |
| 2018 | 34 |
| 2019 | 40 |
| 2020 | 28 |
| 2021 | 36 |
| 2022 | 41 |
| 2023 | 41 |
| 2024 | 34 |
| 2025 | 32 |
| 2026 | 25 |
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 year(c.\"eventDate\") = 2014
AND 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 year(c."eventDate") = 2014
AND 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 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.NTSB WPR14FA369Accident · 1 fatalField investigationFinal reportBackovich George C G P 5 · Reno, NVThe failure of the right wing under normal race loads due to an improper repair of the right wing spar that reduced its structural strength following a previous landing accident.NTSB ERA14FA421Accident · 1 fatalField investigationFinal reportKlaas Development Lancair IV P · Ooltewah, TNThe inadequate torque of the propeller mounting bolts and inspection of the propeller, which resulted in the fatigue fracture of the bolts and a subsequent in-flight separation of the propeller assembly.NTSB ERA14LA418Accident · Serious injuriesLimited investigationFinal reportLorenz Stephen Kitfox Series 5 · Greene, NYThe pilot’s failure to attain adequate airspeed during the initial climb, which resulted in an exceedance of the wing’s critical angle-of-attack and a subsequent aerodynamic stall. Contributing to the accident was the pilot’s lack of experience in the…NTSB WPR14LA340Accident · No injuriesLimited investigationFinal reportHughes 269C · Darrington, WAMaintenance personnel’s failure to secure the throttle mount bracket during a recent engine installation, which resulted in the loss of throttle movement and an inability to control engine power.NTSB CEN14FA400Accident · 1 fatalField investigationFinal reportLarry Ketterling FEW P-51 Mustang · Lisbon, NDThe partial loss of engine power for a reason that could not be determined because of extensive impact and postcrash fire damage, and the pilot's failure to maintain adequate airspeed, which resulted in the airplane's wing exceeding its critical…NTSB WPR14LA312Accident · Minor injuriesLimited investigationFinal reportRoscher Frederick Thunder Mustang · Spanish Springs, NVA complete loss of engine power during climb for reasons that could not be determined due to the severity of postcrash fire damage to the airplane.NTSB ERA14LA358Accident · Serious injuriesLimited investigationFinal reportWinder Robert S VP1 · Grove City, PAA collision with terrain during the landing approach for reasons that could not be determined based on available information.NTSB ERA14LA351Accident · Serious injuriesLimited investigationFinal reportSiler Ronald E Ultrastar · Halifax, PAA total loss of engine power for reasons that could not be determined because the engine was not recovered. Contributing to the accident was the pilot's failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack during…NTSB ERA14CA353Accident · No injuriesData collectionFinal reportJannakos Gregory P Zodiac 601 HDS · Lawrenceville, GAThe pilot's inadequate flare, which resulted in a hard landing.NTSB CEN14CA386Accident · No injuriesData collectionFinal reportBlack Christopher Sparrow Sport Spec · Moriarty, NMThe pilot's loss of directional control while landing in gusty crosswind conditions. Contributing to the accident was the pilot's operation of the engine above its normal temperature limit on takeoff.NTSB CEN14CA382Accident · Serious injuriesData collectionFinal reportGremminger Greg Magni M 16 · Cape Girardeau, MOThe pilot's failure to maintain sufficient altitude while maneuvering which led to a collision with power lines.NTSB WPR14CA294Accident · Minor injuriesData collectionFinal reportThrush S2RHG T65 · Parma, IDThe pilot's decision to take off with a tailwind, which resulted in the airplane not attaining sufficient airspeed for takeoff.NTSB WPR14CA292Accident · Serious injuriesData collectionFinal reportJonker Sailplanes JS1-C · Truckee, CAThe pilot's failure to maintain aircraft control in gusting wind conditions while on final approach to the runway.NTSB CEN14CA380Accident · No injuriesData collectionFinal reportDantonio 404 · Wichita Falls, TXThe separation of a spark plug wire resulting in a loss of engine power during climb out and a subsequent forced landing on a field containing trees.NTSB CEN14LA372Accident · 1 fatalLimited investigationFinal reportJonker Sailplanes JS1-C · Wallis, TXThe pilot’s loss of glider control and its subsequent impact with terrain for reasons that could not be determined due to a lack of available information.NTSB ERA14CA349Accident · No injuriesData collectionFinal reportPekola James W Ridge Runner III · Andrews, NCThe pilot's failure to open the fuel tank valves during the preflight examination of the airplane, which resulted in a total loss of engine power due to fuel starvation.NTSB ERA14LA309Accident · Minor injuriesLimited investigationFinal reportSimmons William E Aventura 2 · Rockledge, FLThe pilot’s failure to maintain airspeed during a forced landing following a loss of engine power, which resulted in a hard landing. Contributing to the accident was the pilot’s inadequate inspection of the engine, which resulted in a loose ground wire lug on…NTSB WPR14LA242Accident · No injuriesLimited investigationFinal reportAdams Dragonfly · Mesa, AZA partial loss of engine power due to a reduction in the No. 3 cylinder’s compression as a result of the exhaust valve not having consistent uniform contact with the cylinder head valve seat.NTSB WPR14LA237Accident · No injuriesLimited investigationFinal reportCraig W Sherman Super Glasair TT · Madera, CAThe loosening of a B-nut in the fuel system which resulted in a rapid, undetected fuel leak and subsequent fuel exhaustion.NTSB WPR14LA225Accident · No injuriesLimited investigationFinal reportEmery Mark Rotorway 162F · Merced, CAThe helicopter pilot/owner's decision to install a belt type not recommended by the kit manufacturer in the tail rotor drive system using the incorrect tension values, which led to the belt’s in-flight failure and the subsequent loss of tail rotor drive…NTSB WPR14LA222Accident · 1 fatalLimited investigationFinal reportPhillips BD 4 · Dayton, NVThe pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack during the turn onto the final base leg in gusting wind conditions, which resulted in a stall/spin at too low an altitude to allow recovery.NTSB CEN14LA244Accident · Minor injuriesLimited investigationFinal reportCrawford Preceptor Ultra PUP · Mabel, MNThe loss of engine power as a result of carburetor icing.NTSB CEN14LA243Accident · 1 fatalLimited investigationFinal reportHoffius Stowe Challenger II · Attica, INThe pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack while maneuvering at low altitude, which led to an aerodynamic stall and loss of control. Contributing to the accident was the installation of an…NTSB CEN14LA213Accident · Serious injuriesLimited investigationFinal reportCrow Mustang II · Morton, TXThe pilot's improper landing flare after encountering a gusting crosswind and his inadequate recovery from the subsequent bounced landing.NTSB CEN14LA202Accident · 2 fatalLimited investigationFinal reportNanchang CJ6 - A · Flushing, MIThe pilot’s failure to maintain adequate airspeed during an off-airport forced landing after a loss of engine power due to carburetor icing and his exceedance of the airplane’s critical angle-of-attack, which resulted in an aerodynamic stall. Contributing to…NTSB ERA14CA189Accident · No injuriesData collectionFinal reportMoore Thomas O Zenith Stol CH701 · Frostproof, FLThe pilot's failure to maintain directional control during a precautionary landing. Contributing to the accident was the pilot's delayed decision to divert due to deteriorating weather.NTSB WPR14LA133Accident · No injuriesLimited investigationFinal reportPeter W Stevens Bearhawk Patrol · Salt Lake City, UTThe pilot’s failure to maintain directional control during the landing roll.NTSB CEN14CA156Accident · No injuriesData collectionFinal reportOlson Kenneth H T Zodiac 601 HDS · Garrison, MNThe pilot's failure to maintain directional control during takeoff which resulted in the airplane striking a snow bank.NTSB ERA14LA130Accident · Serious injuriesLimited investigationFinal reportVictor M Cordero RV-9A · Apopka, FLThe failure of the propeller spline shaft, the drive disk adapter, and the propeller speed reduction unit (PSRU) input spline due to a lack of inspection and lubrication, which resulted in a total loss of propeller drive and a subsequent forced landing.…