NTSB investigations: Amateur-built UNKNOWN ENG, 2001
45 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
Latest 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\") = 2001
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") = 2001
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 LAX02LA043Accident · 1 fatalLimited investigationFinal reportRominger Zic Zac Bird · Marina, CAthe failure the right wing spar and the subsequent separation of the right wing. Contributing factors were the pilot's inadequate maintenance, and the weakened wing structure due to a preexisting fuel tank leak.NTSB ATL02LA016Accident · Minor injuriesLimited investigationFinal reportWhitty, Philip J. Mustang II · Hampstead, NCA loss of engine power for undetermined reasons, which resulted in a forced landing and subsequent nose over during landing roll. A factor was the soft, unsuitable terrain.NTSB DEN02LA010Accident · Minor injuriesLimited investigationFinal reportAgusta A119 · Ogden, UTimproper rigging of the rotary variable differential transformer by the manufacturer, resulting in incorrect fuel scheduling to the fuel control unit.NTSB NYC01LA231Accident · No injuriesLimited investigationFinal reportLet 33 · Bardstown, KYThe pilot's improper flare, which resulted in a nose-first, hard touchdown.NTSB FTW01LA212Accident · No injuriesLimited investigationFinal reportBeech 70 · College Station, TXthe loss of right engine power during takeoff initial climb for undetermined reasons. A contributing factor was the lack of suitable terrain for the forced landing.NTSB IAD01LA108Accident · No injuriesLimited investigationFinal reportVon Claparede Clemen Preceptor-Ultra · Dublin, VAThe pilot's failure to maintain sufficient altitude/clearance, which resulted in the airplane's collision with terrain. A factor was the downdraft.NTSB CHI01LA332Accident · Serious injuriesLimited investigationFinal reportAviaStrottel AC 4C · Marshfield, MIThe pilot's decision to release from the tow plane during the takeoff. A factor associated with the accident was the pilot's vision was restricted by his hat during the takeoff.NTSB ANC01LA150Accident · No injuriesLimited investigationFinal reportSlepcev Storch SS-MK4 · Anchorage, AKThe pilot's failure to maintain directional control and an inadvertent ground loop/swerve during the landing roll.NTSB DEN01LA164Accident · No injuriesLimited investigationFinal reportCessna 172RG · Englewood, COthe failure of the dual student to verify that the landing gear was down and locked, and the failure of the flight instructor to adequately supervise the dual student.NTSB ANC01LA146Accident · Minor injuriesLimited investigationFinal reportDouglas DC-6B · Nuiqsut, AKThe flightcrew's continued use of an unstabilized GPS approach. Factors associated with the accident were low ceilings, and the inadequate coordination between the crew.NTSB NYC01LA230Accident · No injuriesLimited investigationFinal reportCarver RAF 2000 GTX SE · Barre, VTThe pilot's failure to maintain aircraft control during the takeoff. A factor in this accident were wind gusts.NTSB NYC01LA224Accident · 1 fatalLimited investigationFinal reportYakovlev YAK-52 · Washington, CTThe pilot's failure to maintain aircraft control. Factors in the accident were the dark night, reduced visibility, and the pilot's decision to conduct VFR operations at night in adverse weather conditions.NTSB CHI01LA313Accident · Serious injuriesLimited investigationFinal reportGelasi Aircamper · Bloomfield, WIAircraft control not possible due to the inadvertent control interference by the front seat passenger. Factors to the accident were the restricted control stick movement and the encountered stall.NTSB NYC01LA221Accident · No injuriesLimited investigationFinal reportde Havilland DHC-94 Moth Minor · Farmington, PAThe in-flight separation of a propeller blade, which resulted in a forced landing to unsuitable terrain. A factor related to the accident was the plowed field.NTSB LAX01LA294Accident · 1 fatalLimited investigationFinal reportHarter Kitfox Classic · Sedona, AZThe failure of the pilot to initiate a course reversal in a timely manner after flying into a box canyon and his failure to maintain airspeed during the attempted course reversal, which resulted in a stall spin.NTSB SEA01LA160Accident · Serious injuriesLimited investigationFinal reportShank Kitfox Model II · Battle Ground, WAThe pilot's failure to maintain adequate airspeed during climbout.NTSB FTW01IA183Incident · No injuriesIncident investigationFinal reportBoeing 737-347 · DFW Airport, TXThe local controller clearing the taxiing aircraft to cross the runway in front of the aircraft on takeoff roll. Contributing factors were the local controller's failure to follow FAA procedures and directives to visually scan the runway prior to issuing the…NTSB FTW01LA179Accident · 1 fatalLimited investigationFinal reportPdps PZL-Bielsko SZD-55-1 · Uvalde, TXthe pilot's failure to maintain aircraft control during the base turn, which resulted in an inadvertant stall/spin.NTSB FTW01LA196Accident · Minor injuriesLimited investigationFinal reportWSK PZL Mielec M-18 · Dumas, ARThe loss of engine power for undetermined reasons. A factor was the lack of suitable terrain for a forced landing.NTSB IAD01LA091Accident · Serious injuriesLimited investigationFinal reportDelbridge Rotorway Exec 162F · Carrollton, VApilot's inadequate fuel consumption calculations, which resulted in a loss of engine power due to fuel exhaustion.NTSB IAD01LA087Accident · Serious injuriesLimited investigationFinal reportCharles Lancair 320 · Charleston, NYThe pilot's failure to maintain control of the airplane while maneuvering, which resulted in a collision with trees.NTSB NYC01LA184Accident · No injuriesLimited investigationFinal reportPohl Lancair IV-P · Fryeburg, MEA partial blockage of the air intake system, due to the pilot's failure to ensure the engine compartment was clear of paper towels after a maintenance inspection.NTSB LAX01LA244Accident · 1 fatalLimited investigationFinal reportLevitsky BD-5T · Cameron Park, CAan in-flight collision with terrain for undetermined reasons.NTSB ATL01LA078Accident · No injuriesLimited investigationFinal reportMcDonnell Douglas DC-3 · Titusville, FLThe pilot's failure to maintain directional control during a bounced landing, resulting in a ground loop and subesequent collision with the runway.NTSB SEA01LA126Accident · No injuriesLimited investigationFinal reportMaule M-5-210C · Big Creek, IDThe pilot's failure to adequately compensate for the wind conditions during the landing roll. High and gusting winds were factors.NTSB DEN01LA121Accident · No injuriesLimited investigationFinal reportGriffith-Boyd Lancair 360 · La Junta, COa wheels-up landing due to an uncommanded gear retraction resulting from a short circuit of the landing gear electrical wiring.NTSB NYC01FA158Accident · 1 fatalField investigationFinal reportMoravan Zlin 526F · Queen Anne, MDThe pilot's failure to maintain airspeed during an aerobatic maneuver, which resulted in an inadvertent inverted spin.NTSB CHI01LA171Accident · No injuriesLimited investigationFinal reportLarson Murphy Rebel · Stratford, WIThe pilot's failure to abort the takeoff from the farm field. Factors were the tall grass, the rising terrain, the fence, and the inadequate planning/decision by the pilot.NTSB MIA01LA164Accident · 1 fatalLimited investigationFinal reportBroyles P51 · Conestee, SCPartial loss of engine power due to an engine cylinder experiencing detonation resulting in a forced landing to none suitable terrain.NTSB IAD01LA067Accident · No injuriesLimited investigationFinal reportde Havilland DH-82 Tiger Moth · Allamuchy, NJThe loss of engine power over unsuitable terrain due to an exhaust valve stuck in the open position.NTSB IAD01LA069Accident · Serious injuriesLimited investigationFinal reportBucker Jungmann C.A.S.A. 1.131 · Plymouth, MAThe pilot's failure to maintain altitude during an approach and inadequate visual lookout, which resulted in a collision with a runway sign.NTSB SEA01LA116Accident · 2 fatalLimited investigationFinal reportYakovlev YAK 52 · Custer, WAThe first pilot's failure to maintain aircraft control while maneuvering. Factors include an inadvertent stall.NTSB NYC01LA143Accident · No injuriesLimited investigationFinal reportYakovlev 52 · Fredericksburg, VAThe pilot's failure to obtain the proper touchdown point, which resulted in an overrun.NTSB CHI01LA155Accident · Serious injuriesLimited investigationFinal reportTorno Micro Mong · Petersburg, MIAircraft control not being maintained by the pilot during the forced landing. Factors to the accident were the loss of engine power, the overtemperature of the piston, the hole in the top of the number-one piston, and the encountered stall.NTSB CHI01LA152Accident · No injuriesLimited investigationFinal reportAllen Rotorway 162F · Jerseyville, ILthe improper autorotation by the pilot. Contributing factors were the engine failure for undetermined reason(s) and the muddy terrain.NTSB FTW01LA120Accident · No injuriesLimited investigationFinal reportKirchner Pietenpol Aircamper · Tulsa, OKthe pilot's inadequate flare during the forced landing, which resulted in a hard landing. A contributing factor was the engine overheating due a stuck oil cooler thermostat valve, which resulted in a loss of power.NTSB LAX01LA165Accident · Serious injuriesLimited investigationFinal reportDe Havilland Tiger Moth DH 82A · Sonoma, CAFailure of the pilot to properly flush out the fuel system after the header tank became submerged in water, which precipitated a loss of engine power and forced landing in a soft open dirt area.NTSB FTW01LA108Accident · No injuriesLimited investigationFinal reportCartercopters Cartercopter · Olney, TXthe pilot's failure to maintain directional control during the takeoff initial climb. Contributory factors were the pilot's lack of experience with the aircraft and the soft terrain.NTSB FTW01LA086Accident · No injuriesLimited investigationFinal reportCartercopters Cartercopter · Olney, TXthe pilot's failure to maintain rotor rpm, which resuted in the main rotor contacting the tail during landing.NTSB NYC01LA087Accident · Minor injuriesLimited investigationFinal reportRobinson R-22 · Islip, NYThe certified flight instructor’s inadequate supervision and delayed remedial action, which resulted in a roll-over. Factors in this accident were the crosswind condition and soft landing area.NTSB SEA01LA053Accident · No injuriesLimited investigationFinal reportGibbs V-6 Stol · Newberg, ORthe pilot's mismanagement of his available fuel, the fuel starvation of the engine, and the pilot's excessive rate of descent during the touchdown portion of a power-off forced landing.NTSB ATL01LA031Accident · Serious injuriesLimited investigationFinal reportSorrell SNS-2 Guppy · Raymond, MSThe failure of the rudder horn bracket, that resulted in the inflight loss of control.NTSB ATL01LA030Accident · No injuriesLimited investigationFinal reportLearjet 25B · Ft. Pierce, FLThe mechanic's failure to properly install and secure the left main landing gear aft trunnion pin in accordance with procedures.NTSB FTW01LA055Accident · No injuriesLimited investigationFinal reportSchmidt Questair Venture · Fort Worth, TXThe pilot's failure to maintain directional control during the landing roll. Factors were the crosswind and soft terrain condition.NTSB LAX01FA071Accident · Minor injuriesField investigationFinal reportWorldwide Aeros 40B · Oakland, CAOne or both of the rear ballonet air relief valves remained in an open position for undetermined reasons, which caused an out-of-balance trim condition; also causal was the flight crew’s decision to the fly the airship with a known deficiency (the inoperative…