NTSB investigations: Amateur-built UNKNOWN ENG, OH
53 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
| 1971 | 1 |
|---|---|
| 1973 | 2 |
| 1974 | 1 |
| 1980 | 1 |
| 1982 | 2 |
| 1983 | 1 |
| 1985 | 1 |
| 1987 | 2 |
| 1988 | 1 |
| 1993 | 1 |
| 1995 | 1 |
| 1998 | 1 |
| 1999 | 2 |
| 2000 | 1 |
| 2003 | 2 |
| 2004 | 3 |
| 2005 | 3 |
| 2006 | 1 |
| 2007 | 2 |
| 2008 | 2 |
| 2009 | 3 |
| 2010 | 2 |
| 2011 | 1 |
| 2012 | 1 |
| 2015 | 1 |
| 2016 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2026 | 2 |
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 c.\"eventStateOrRegion\" = 'OH' AND c.\"eventCountry\" = 'USA'
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 c."eventStateOrRegion" = 'OH' AND c."eventCountry" = 'USA'
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 ERA27LA008Accident · Minor injuriesClass 4 · LimitedInvestigation openZielke Ronald W Zenith 750 · Marysville, OHNTSB ERA26LA311Accident · No injuriesClass 4 · LimitedFinal reportHPH Glasflugel 304CZ · Xenia, OHThe glider’s encounter with atmospheric conditions where lift was not sufficient to maintain flight.NTSB ERA24FA362Accident · 1 fatalClass 3 · FieldFinal reportSchleicher Alexander ASH 26 E · Waynesville, OHA loss of control on takeoff for undetermined reasons.NTSB ERA23LA208Accident · Serious injuriesClass 3 · LimitedFinal reportVans RV6 · Eaton, OHThe pilot’s inadequate fuel management, which resulted in a total loss of engine power due to fuel exhaustion.NTSB ERA22LA400Accident · No injuriesClass 4 · LimitedFinal reportAeronca 7AC · Marysville, OHThe pilot’s failure to maintain directional control during landing.NTSB CEN21FA426Accident · 1 fatalClass 3 · FieldFinal reportRans S20 · Wadsworth, OHThe pilot’s decision to depart shortly after a landing helicopter, which resulted in an encounter with the helicopter’s wake turbulence and a loss of airplane control. Contributing to the accident was the pilot’s impairment by his recent use of ethanol.NTSB CEN21LA395Accident · 1 fatalClass 3 · LimitedFinal reportKlapp Peter A Klapp KR-2S · Wadsworth, OHA loss of airplane control for a reason that could not be determined based on available information.NTSB CEN21LA309Accident · No injuriesClass 3 · LimitedFinal reportTitan T-51D · Ashtabula, OHThe tripped engine control computer circuit breaker caused by an excessive electrical load on the system, which resulted in a complete loss of engine power during the initial climb.NTSB CEN21LA250Accident · Minor injuriesClass 4 · LimitedFinal reportVans RV9 · West Portsmouth, OHThe pilot’s improper use of the airplane’s fuel system, which resulted in a total loss of engine power due to fuel starvation.NTSB CEN21LA016Accident · Minor injuriesClass 4 · LimitedFinal reportKitfox Classic 4 · New Carlisle, OHThe pilot’s failure to maintain pitch control of the airplane during landing, which caused the airplane to nose over during landing roll. Contributing to the accident was the main landing gear modification which increased the airplane’s tendency to nose over…NTSB GAA19CA303Accident · Minor injuriesData collectionFinal reportAir Tractor AT502 · Rockford, OHThe pilot's failure to maintain clearance from power lines during an agricultural application flight.NTSB CEN19FA144Accident · 1 fatalClass 2 · FieldFinal reportVans RV6 · Chillicothe, OHThe pilot's failure to maintain control of the airplane following an intermittent loss of engine power during cruise flight that resulted in him impacting trees. The reason for the loss of engine power could not be determined based on the available…NTSB CEN18LA239Accident · Serious injuriesLimited investigationFinal reportSibila MH-1 · Beach City, OHThe total loss of engine power for reasons that could not be determined based on the available evidence.NTSB GAA16CA391Accident · No injuriesData collectionFinal reportDiamond Aircraft Ind HK 36 · Blanchester, OHThe pilot's failure to maintain directional control of the powered glider during the landing roll.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 CEN12FA217Accident · 1 fatalField investigationFinal reportOliver Joseph Zodiac CH 601XL · Belmont, OHThe loss of engine power and the pilot’s diverted attention to the engine power loss, which resulted in a rapid descent and impact with terrain.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 CEN10CA530Accident · No injuriesData collectionFinal reportCullis Ultracruiser Sport · Defiance, OHThe pilot's failure to maintain aircraft control during the landing roll.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 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 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 CEN09LA440Accident · 1 fatalLimited investigationFinal reportAntares MA-33 · Centerburg, OHThe pilot's failure to maintain adequate airspeed resulting in an aerodynamic stall.NTSB CHI08LA274Accident · Minor injuriesLimited investigationFinal reportSadler Vampire · Findlay, OHA total loss of engine power due to the failure of the reduction drive assembly as a result of excessive wear and high temperatures. Contributing to the accident were the pilot's lack of total experience in the airplane and the unsuitable terrain for a forced…NTSB CHI08CA063Accident · No injuriesData collectionFinal reportNewbold Newbold 2000 · Newark, OHThe CFI's failure to maintain control of the gyrocopter which resulted in settling with power and the subsequent hard landing. Factors associated with the accident were the CFI's decision to excessively flare the gyrocopter at a low altitude.NTSB CHI08CA001Accident · No injuriesData collectionFinal reportDusenberry 1905 Wright Flyer · Dayton, OHThe altitude not maintained by the pilot for a turning maneuver.NTSB CHI07LA237Accident · 1 fatalLimited investigationFinal reportOpus Motorsports BD02 · Dayton, OHThe pilot not maintaining clearance from terrain during the aerobatic maneuver. Factors contributing to the accident were the pilot's restricted ability to see the terrain and the oil smoke present in the air show performer's box.NTSB CHI06CA265Accident · No injuriesData collectionFinal reportPiper PA-34-220T · Dayton, OHThe pilot's inadvertent wheels up landing.NTSB IAD05LA144Accident · Serious injuriesLimited investigationFinal reportHoward Whyte Nieuport 28 · Dayton, OHA loss of engine power due to the installation of incorrect spring type terminal contacts which were accidentally supplied by the engine distributor.NTSB NYC05LA088Accident · 1 fatalLimited investigationFinal reportKlasing Bradley BA100 · Xenia, OHA loss of engine power for undetermined reasons, and the pilot's failure to maintain aircraft control, which resulted in an inadvertent stall and uncontrolled descent into terrain.NTSB IAD05LA033Accident · No injuriesLimited investigationFinal reportGhiles MCR-01 VLA · Cincinnati, OHA total loss of engine power due to an oil hose collapse, which resulted in failure of the #4 connecting rod.NTSB NYC04CA124Accident · Minor injuriesData collectionFinal reportFraker Mustang II · Wauseon, OHThe failure of the drive coupling between the engine and the propeller speed reducer. A factor related to the accident was the pilot's inadequate preflight inspection of the drive coupling.NTSB IAD04LA019Accident · Minor injuriesLimited investigationFinal reportKrotje VM-1 Esqual · Cambridge, OHThe pilot's failure to maintain directional control. A factor was the inadequate brake system installed on the airplane.NTSB NYC04LA079Accident · Serious injuriesLimited investigationFinal reportGeoffrion Rotorway Exec 162 · Medina, OHA failure of the helicopter's tail rotor drive system for undetermined reasons.NTSB NYC04LA008Accident · Minor injuriesLimited investigationFinal reportSibila VP 1 · Cincinnati, OHThe pilot's delayed decision to abort the takeoff, which resulted in a collision with trees.NTSB NYC03LA171Accident · 1 fatalLimited investigationFinal reportStewart Hummel Bird · North Baltimore, OHThe loss of engine power for undetermined reasons, and the pilot's failure to maintain airspeed, which resulted in an inadvertent stall during an emergency landing.NTSB NYC00LA141Accident · 1 fatalLimited investigationFinal reportCarlson Criquet · East Palestine, OHThe failure of the powerplant to produce adequate power for undetermined reasons, and the pilot's continued operation of the airplane with known deficiencies.NTSB NYC99LA215Accident · No injuriesLimited investigationFinal reportLet L-33-SOLO · Wellington, OHThe pilot's failure to attain the proper touchdown point. A factor related to the accident was a downdraft.NTSB NYC99IA062Incident · No injuriesIncident investigationFinal reportAirbus Industrie A-320-231 · Columbus, OHa failure of the external o-rings in the nose landing gear steering module.NTSB NYC99LA011Accident · No injuriesLimited investigationFinal reportZeidler Sonerai II · Kenton, OHThe pilot's premature rotation and failure to obtain/maintain airspeed during the takeoff, which resulted in a stall and impact with the ground. Factors in this accident were the pilot's lack of total experience in tail-wheeled aircraft, and the nose high…NTSB NYC95DEI01Accident · 1 fatalFinal reportStaudacher S-600 · Wellington, OHloss of engine power for undetermined reason(s), and failure of the pilot to maintain adequate airspeed, while maneuvering, which resulted in a stall and collision with the ground.NTSB NYC93LA119Accident · No injuriesLimited investigationFinal reportStart & Flug H-101 Salto · Columbus, OHThe pilot's selection of unsuitable terrain for landing. A factor related to the accident was the interruption of the glider pilot's planned approach by a powered airplane.NTSB ATL88LA180Accident · Serious injuriesLimited investigationFinal reportStinson 108-2 · Avon, OHThe acft was on initial climb out when the eng quit. The acft was at an estimated altitude of 100 ft and over trees at the time of the power loss. The plt attempted to return to the airstrip. The acft landed hard in a nose down position off to the side of the…NTSB ATL88LA038Accident · No injuriesLimited investigationFinal reportCessna 172A · Dayton, OHThe plt rptd that the engine began to sputter and lose power shortly after takeoff. A forced ldg was subsequently made in a nearby river. The acft nosed over on ldg and came to rest partially submerged in about 4 feet of water. Post-crash exam of the airplane…NTSB ATL87DEI06Accident · 2 fatalFinal reportSteen Skybolt · Wadsworth, OHThe accident occurred when the pilot was practicing aerobatics. The investigation disclosed that linkage control rods between the pilot's stick and the pitch elevator was broken. The evidence indicated that the failure was caused by a combination of…NTSB CHI85LA175Accident · Minor injuriesLimited investigationFinal reportPiper J-3 · Richfield, OHThe plt made a short field takeoff using aprx 1700 ft of the 2200 ft airstrip. Unable to clear trees along the flt path, he turned to the right. However, the acft's wheel pants contacted a tree while the plane was still banked to the right & a slight amount…NTSB CHI83LA244Accident · Serious injuriesLimited investigationFinal reportMonerai Sailplane · Montpelier, OHThe glider dragged a wing and carlwheeled during a low turn maneuver by the pilot. The pilot stated that he apparently had failed to lock the flap handle in the proper position and the acft had picked up excess airspeed. In trying to stay in the rwy…NTSB CHI83LA001Accident · No injuriesLimited investigationFinal reportBenson Gyrocopter · Mt. Vernon, OHThe gyrocopter pilot stated that he landed the aircraft hard, bounced and then nosed over.NTSB CHI82FA260Accident · 1 fatalField investigationFinal reportRotorway Scorpion TOO · Niles, OHThe plt's wife stated that the helicopter was taken across the street to an open field where the plt conducted his flt in the acft. She had never seen him fly this acft over about 3 ft AGL. The helicopter was observed to jump as if lifted by a gust of wind &…NTSB CHI80FEI29Accident · No injuriesClosedScorpion H1754R · North Jackson, OHNTSB CHI74FEK24Accident · No injuriesClosedBeech 19A · Columbus, OH