NTSB investigations: Amateur-built UNKNOWN ENG, 2011
44 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\") = 2011
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") = 2011
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 ERA12FA120Accident · 1 fatalField investigationFinal reportCessna 441 · Nashville, PAThe pilot's failure to maintain minimum control airspeed after a loss of power to the right engine, which resulted in an uncontrollable roll into an inadvertent stall/spin. Contributing to the accident was the failure of the airplane's right engine for…NTSB WPR12FA059Accident · 1 fatalField investigationFinal reportVans RV7 - A · Surprise, AZAn electrical or engine electronic problem, which resulted in a loss of engine power, followed by a low-altitude stall.NTSB ERA12CA088Accident · No injuriesData collectionFinal reportAnatra Bart T Vans RV-7A · Quinton, VAThe pilot's improper fuel management, which resulted in a total loss of engine power due to fuel starvation, and the subsequent nose-over during the forced landing.NTSB WPR12CA033Accident · No injuriesData collectionFinal reportCasler Scott CX-4 · San Carlos, AZThe pilot's inadequate directional control during takeoff.NTSB CEN12IA050Incident · No injuriesIncident investigationFinal reportNusbaum Vaquero · Hebron, ILThe pilot’s operation of the airplane with known medical conditions and his subsequent heart attack during the flight.NTSB CEN12LA014Accident · Serious injuriesLimited investigationFinal reportPeck Zodiac 601XL · Traverse City, MIA loss of engine power for undetermined reasons.NTSB ERA12LA011Accident · 1 fatalLimited investigationFinal reportRivers William J KR-2 · Wytheville, VAThe pilot's failure to maintain control, which resulted in an aerodynamic stall/spin. Contributing to the accident was the pilot's lack of experience in the airplane make and model.NTSB CEN11CA679Accident · No injuriesData collectionFinal reportWaltman Theodore J Moose · Hays, KSRudder flutter due to the design changes to the airplane's horizontal stabilizer.NTSB CEN11CA667Accident · Minor injuriesData collectionFinal reportTompkins Tandem Rocket · Lemars, IAThe pilot's failure to maintain aircraft control while maneuvering.NTSB WPR11MA454Accident · 11 fatalClass 1 · MajorFinal reportNorth American/Aero Classics P-51D · Reno, NVThe reduced stiffness of the elevator trim tab system that allowed aerodynamic flutter to occur at racing speeds. The reduced stiffness was a result of deteriorated locknut inserts that allowed the trim tab attachment screws to become loose and to initiate…NTSB WPR11LA427Accident · No injuriesLimited investigationFinal reportStinson V77 · Tillamook, ORThe pilot’s loss of directional control while taxiing in a gusting tailwind.NTSB ERA11FA468Accident · 1 fatalField investigationFinal reportMitchell David N Lancair IV P · Hammonton, NJThe Lancair pilot's failure to see and avoid the aerobatic airplane. Contributing to the accident was the Lancair pilot's inadequate use of collision avoidance strategies while inbound to an area of known potential aerobatic activity.NTSB CEN11LA596Accident · No injuriesLimited investigationFinal reportSuminski Walter M Jabiru SP · Columbia, ILSeparation of the right main wheel during landing rollout for undetermined reasons.NTSB CEN11LA671Accident · Serious injuriesLimited investigationFinal reportFisher Michael E Hyster · Lake Jackson, TXThe improper maintenance of the throttle control cable, which resulted in the engine going to idle power after takeoff.NTSB WPR11CA399Accident · No injuriesData collectionFinal reportRichmond Jim R CCK-1865 · Dubois, WYThe pilot's failure to maintain clearance from a wire during cruise flight.NTSB CEN11LA566Accident · No injuriesLimited investigationFinal reportAir Tractor AT-400 · Nelson, NEFailure of the fuel control unit's spool cap bearing for reasons that could not be determined during extensive postaccident examination, and the pilot’s decision to shut the engine down without sufficient altitude and distance to reach the runway.NTSB WPR11LA377Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R22 Beta · Deer Park, WAThe student pilot's failure to maintain control of the helicopter and his delay in relinquishing control to the flight instructor, which resulted in the instructor’s delayed remedial actions and subsequent hard landing.NTSB CEN11LA541Accident · No injuriesLimited investigationFinal reportWeatherly 620B · Hettinger, NDInternal failure of the engine for undetermined reasons.NTSB CEN11LA527Accident · No injuriesLimited investigationFinal reportSnow Quickie 2 · Ashtabula, OHThe incorrect propeller pitch and lower-than-expected engine speed that did not allow the airplane to attain a proper climb rate during takeoff, and the subsequent hard landing that occurred when the pilot reduced power.NTSB CEN11LA499Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502 · Fergus Falls, MNThe total loss of engine power for reasons that could not be determined because the airplane came to rest inverted in water.NTSB CEN11FA469Accident · 1 fatalField investigationFinal reportBowie Richard Sonerai II · Dudley, MOFuel starvation due to the pilot’s improper fuel management and his decision to conduct the flight while under the influence of marijuana.NTSB ANC11LA060Accident · Serious injuriesLimited investigationFinal reportSonex / John D. McCarter Waiex · Sterling, AKThe pilot's failure to maintain sufficient airspeed to avoid an aerodynamic stall following a loss of engine power for undetermined reasons.NTSB CEN11FA443Accident · 2 fatalField investigationFinal reportKoen Lancair Laser IV-P · Port O'Connor, TXThe pilot’s loss of airplane control for reasons that could not be determined from the available information.NTSB ERA11FA374Accident · 1 fatalField investigationFinal reportBinkley Richard Sonex · Calhoun, GAThe total loss of engine power for reasons that could not be determined because postimpact fire damage precluded a thorough examination of the engine.NTSB CEN11LA449Accident · Minor injuriesLimited investigationFinal reportAbbey Victor RV9-A · Leander, TXThe partial loss of engine power for reasons that could not be determined because examination of the engine did not reveal any anomalies that would have precluded normal operation.NTSB CEN11FA431Accident · 2 fatalField investigationFinal reportBosonetto Thorp T-18 · Howell, MIThe pilot's failure to maintain airplane control and airspeed during final approach, which resulted in an aerodynamic stall/spin at a low altitude.NTSB WPR11LA290Accident · Minor injuriesLimited investigationFinal reportChristen Industries Pitts S-1T · Alkali Lake, ORThe loss of engine oil during cruise flight due to the failure of the front bearing oil seal.NTSB WPR11CA281Accident · No injuriesData collectionFinal reportPiper PA-36-285 · Havre, MTThe pilot's failure to maintain directional control during takeoff.NTSB WPR11LA280Accident · No injuriesLimited investigationFinal reportInhofe/ Davis Vans RV-8 · Sheridan, WYThe pilot's inadequate directional control during the landing roll.NTSB ERA11CA355Accident · No injuriesData collectionFinal reportDotson William P Sngl Seat Hawk Arrow · Carthage, NCA partial loss of engine power due to the pilot’s improper installation of the engine’s No. 1 cylinder spark plugs.NTSB CEN11LA402Accident · Serious injuriesLimited investigationFinal reportCessna P210R · Albia, IAThe pilot's inadequate preflight inspection, in which he did not detect that less fuel was on board the airplane than planned, which precipitated a loss of engine power due to fuel exhaustion during initial descent.NTSB WPR11FA258Accident · No injuriesField investigationFinal reportBowley Murphy · Aguila, AZA fire that originated from a fuel leak at an undetermined location in the engine compartment. Contributing to the accident was the builder's use of non-aviation hardware for engine fluid fittings and lines.NTSB ERA11CA311Accident · No injuriesData collectionFinal reportSouthern Airmotive SAC · Taccoa, GAThe pilot's inadequate compensation for crosswind conditions during landing, resulting in a runway excursion and collision with a hangar.NTSB CEN11CA314Accident · No injuriesData collectionFinal reportPrichard Kevin Legacy 2K · Kansas City, MOThe pilot's misjudgment of the landing area, which resulted in the airplane touching down on a grass area adjacent to the runway and between parallel taxiways.NTSB WPR11CA208Accident · No injuriesData collectionFinal reportDoktor Fiberglas H101 Salto · Peoria, AZThe glider's encounter with turbulence and loss of lift, which resulted in a ditching in a lake.NTSB WPR11CA206Accident · No injuriesData collectionFinal reportTew William P Team Rocket F1 · Heber, UTThe pilot's failure to maintain directional control during landing.NTSB WPR11LA199Accident · Minor injuriesLimited investigationFinal reportZenith CH-750 · Winchester, CAA total loss of engine power during descent for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.NTSB ERA11LA234Accident · 1 fatalLimited investigationFinal reportLet L 33 Solo · New Castle, VAPilot incapacitation shortly after takeoff for unknown reasons.NTSB WPR11LA190Accident · Minor injuriesLimited investigationFinal reportBell 47G · Torrance, CAThe pilot did not maintain adequate altitude during takeoff, which resulted in ground contact and a dynamic rollover.NTSB ERA11FA222Accident · 2 fatalField investigationFinal reportReplogle Lancair 360 · Chesapeake, VAThe pilot did not maintain airspeed following a loss of engine power, which resulted in an aerodynamic stall and spin. Contributing to the accident was the pilot's selection of the wrong fuel tank at takeoff, which resulted in fuel starvation and the total…NTSB ERA11LA213Accident · Minor injuriesLimited investigationFinal reportHolst Lawrence E VP-1 · Calhoun, GAA partial loss of engine power during initial climb due to an over-lean carburetor setting. Contributing to the accident was the pilot's improper adjustment of the engine's carburetor during construction.NTSB ERA11LA200Accident · No injuriesLimited investigationFinal reportPiper PA-18A 150 · Hollywood, FLA total loss of engine power for undetermined reasons.NTSB WPR11FA147Accident · 1 fatalField investigationFinal reportNeefjes Lancair 360 MK-II · Milford, UTThe pilot's loss of control of the airplane due to spatial disorientation after inadvertently entering instrument meteorological conditions. Contributing to the accident were the pilot's inadequate preflight preparation, his en route decision-making, and his…NTSB WPR11CA124Accident · No injuriesData collectionFinal reportCessna 182D · Quartzsite, AZThe pilot's inadequate compensation for the wind and subsequent loss of directional control, which resulted in a runway excursion and collision with a parked aircraft.