NTSB investigations: Amateur-built UNKNOWN ENG, OR
68 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
| 1965 | 1 |
|---|---|
| 1966 | 1 |
| 1967 | 1 |
| 1969 | 1 |
| 1970 | 1 |
| 1971 | 1 |
| 1977 | 1 |
| 1978 | 1 |
| 1981 | 5 |
| 1982 | 4 |
| 1983 | 1 |
| 1994 | 1 |
| 1996 | 3 |
| 1997 | 1 |
| 1998 | 2 |
| 2000 | 1 |
| 2001 | 1 |
| 2002 | 4 |
| 2003 | 4 |
| 2004 | 2 |
| 2005 | 3 |
| 2006 | 3 |
| 2007 | 2 |
| 2008 | 2 |
| 2010 | 1 |
| 2011 | 2 |
| 2012 | 1 |
| 2013 | 1 |
| 2015 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2020 | 1 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 1 |
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\" = 'OR' 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" = 'OR' 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 WPR26LA140Accident · No injuriesClass 3 · LimitedPreliminary reportLancair Legacy · Hillsboro, OROn March 16, 2026, about 1257 Pacific daylight time, a Lancair Legacy, N212LG, sustained substantial damage when it was involved in an accident near Hillsboro, Oregon. The private pilot was not injured. The airplane was operated as a Title 14 Code of Federal…NTSB WPR25LA103Accident · No injuriesClass 4 · LimitedFinal reportAmazon.Com Services MK30 · Pendleton, ORThe unmanned aircraft system’s failure to maintain clearance from an obstacle, which resulted in a loss of control and impact with terrain.NTSB WPR25LA064Accident · No injuriesClass 4 · LimitedFinal reportAmazon.Com Services MK30 · Pendleton, ORThe incorrect altitude indication by test software during landing.NTSB WPR25LA063Accident · No injuriesClass 4 · LimitedFinal reportAmazon.Com Services MK30 · Pendleton, ORAn improper altitude indication from a recent software update, which resulted in a loss of engine power in flight.NTSB WPR24LA302Accident · No injuriesClass 4 · LimitedFinal reportAmazon.Com Services MK30 · Pendleton, ORThe operator’s failure to maintain separation between two drones during dual simulated engine out recoveries, which resulted in a midair collision.NTSB WPR24LA031Accident · No injuriesClass 4 · LimitedFinal reportAmazon.Com Services MK27-2 · Pendleton, ORThe operator’s use of an insufficiently charged battery that resulted in a total loss of engine power and subsequent impact with terrain.NTSB WPR22LA370Accident · No injuriesClass 4 · LimitedFinal reportAlisport Silent 2 Electro · Hood River, ORThe pilot’s improper landing flare which resulted in a hard landing. Contributing to the accident was the pilot’s failure to follow the checklist to remove the wing wheel and tail dolly before takeoff.NTSB WPR22FA312Accident · 2 fatalClass 3 · FieldFinal reportJackson Dennis RV-8 · Scio, ORThe pilot’s decision to perform a low-altitude aerobatic maneuver and his improper execution of the maneuver, which resulted in impact with terrain.NTSB WPR22LA045Accident · No injuriesClass 4 · LimitedFinal reportElvin Jack R JR Rotorway Exec 162F · Scio, ORThe pilot’s improper maintenance on the tail rotor assembly, which resulted in the loss of control and roll over.NTSB WPR22LA019Accident · No injuriesClass 3 · LimitedFinal reportLancair ES · Fall Creek, ORTotal loss of engine power due to fatigue failure of the camshaft gear.NTSB WPR21LA276Accident · No injuriesClass 4 · LimitedFinal reportPayne Steven R RV-8 · Hillsboro, ORThe second pilot’s diverted attention while taxing which, resulted in his failure to maintain clearance from another airplane holding short of the runway.NTSB WPR21LA094Accident · Minor injuriesClass 3 · LimitedFinal reportRandy Wayne Maloney M1 · Eagle Point, ORA partial loss of engine power for reasons that could not be determined based on available evidence.NTSB WPR20LA201Accident · 1 fatalClass 3 · LimitedFinal reportAvia Stroitel AC-5M · Bend, ORA loss of control just after takeoff for reasons that could not be determined based on the available information.NTSB WPR18LA127Accident · Serious injuriesLimited investigationFinal reportYakovlev YAK 52 · Hillsboro, ORA partial loss of engine power during cruise flight for reasons that could not be determined because postaccident examination did not reveal any mechanical malfunctions or failures that would have precluded normal operation. Contributing to the accident was…NTSB GAA18CA084Accident · No injuriesData collectionFinal reportCorbeil Shawn Corbeil Shawn SER VI · Rogersburg, ORThe pilot’s improper landing flare and his subsequent failure to see and avoid a tree during a go-around.NTSB GAA15CA132Accident · Minor injuriesData collectionFinal reportErvin Rex H Bear Hawk · Merrill, ORThe pilot's failure to maintain directional control during landing, which resulted in a ground loop.NTSB WPR13FA393Accident · 1 fatalField investigationFinal reportStuart Vortex · Scappoose, ORThe student pilot's unintentional takeoff followed by his failure to maintain control of the gyroplane during the landing approach. Contributing to the accident was the student pilot’s lack of both flight training and flight experience and his lack of a solo…NTSB WPR12CA304Accident · No injuriesData collectionFinal reportSchempp Hirth Nimbus II · Redmond, ORA loss of aerodynamic lift that resulted in a forced landing on unsuitable terrain.NTSB WPR11LA427Accident · No injuriesLimited investigationFinal reportStinson V77 · Tillamook, ORThe pilot’s loss of directional control while taxiing in a gusting tailwind.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 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 SEA08CA204Accident · No injuriesData collectionFinal reportGoetz RAF 2000 · Mulino, ORThe pilot's failure to maintain directional control during landing.NTSB SEA08LA138Accident · 1 fatalLimited investigationFinal reportKolb Kolbra · Jordan Valley, ORThe pilot's failure to maintain an adequate airspeed while maneuvering that led to a stall/mush.NTSB LAX07CA133Accident · No injuriesData collectionFinal reportJiran FJ-1 · Banks, ORthe pilot's misjudged distance/altitude that led to a failure to attain the proper touchdown point.NTSB SEA07LA095Accident · No injuriesLimited investigationFinal reportDiemert/Rotorway Exec 162 F · Roseburg, ORa total loss of engine power due to the failure of the primary and secondary electronic control units (ECU's) within the engine's Fully Automated Digital Electronic Control.NTSB SEA07LA025Accident · 2 fatalLimited investigationFinal reportHolloway RV6A · North Bend, ORThe pilot's failure to maintain clearance from the water while performing low altitude maneuvering flight resulting in an in flight collision with the water.NTSB SEA06FA142Accident · 1 fatalField investigationFinal reportHawker Siddeley MK-58A Hunter · Hillsboro, ORLoss of aircraft control for undetermined reasons during the takeoff sequence.NTSB SEA06CA102Accident · No injuriesData collectionFinal reportHughes 369A · Banks, ORThe pilot's failure to maintain rotor rpm while performing a simulated autorotation, which resulted in a hard landing. A contributing factor was the pilot's incorrect interpretation of the examiner's instruction to add power.NTSB SEA05LA172Accident · 2 fatalLimited investigationFinal reportMK II Legacy Sport · Madras, ORThe pilot's failure to maintain adequate airspeed while maneuvering which resulted in an inadvertent stall/spin and subsequent collision with the ground.NTSB SEA05LA137Accident · No injuriesLimited investigationFinal reportScheibe SF-28A Tandem-Falke · North Plains, ORThe pilot's failure to maintain airspeed during landing. Inadequate emergency procedures training and high vegetation were factors.NTSB SEA05LA128Accident · 1 fatalLimited investigationFinal reportEllsberg One Design · Madras, ORThe pilot's failure to maintain altitude/clearance from terrain while performing aerobatics which resulted in a collision with the ground.NTSB SEA04CA107Accident · No injuriesData collectionFinal reportSteward Rocky 162F · Hood River, ORThe pilot's miscalculation of fuel consumption and his inadequate in-flight planning/decision, which resulted in fuel exhaustion and loss of engine power. A factor was the high vegetation.NTSB SEA04LA079Accident · No injuriesLimited investigationFinal reportSZD Jantar 42-1 · Wamic, ORThe glider pilot's inadequate en route planning, which resulted in a forced landing in an area without suitable landing terrain. Factors include no suitable landing terrain in the area where the pilot found it necessary to execute a forced landing, and trees…NTSB SEA04LA026Accident · 1 fatalLimited investigationFinal reportUpright RV-7A · McMinnville, ORThe pilot's failure to maintain aircraft control. Cloudy weather, continued flight into adverse weather, inadequate preflight planning and mountainous terrain were factors.NTSB SEA03LA118Accident · 1 fatalLimited investigationFinal reportHerrin Hornet · Newberg, ORAircraft control not maintained while maneuvering for landing.NTSB SEA03FA110Accident · 1 fatalField investigationFinal reportHarshbarger W/Reed RV-8 · Grants Pass, ORCorrosion and contamination within the fuel servo unit and the pilot's delayed turn back to the runway. Contributing factors were trees and the pilot's impairment due to prescription medication.NTSB SEA03LA039Accident · No injuriesLimited investigationFinal reportKesterson Nieuport 11 · Independence, ORAircraft control not maintained during takeoff. Factors include soft/muddy terrain.NTSB SEA03LA011Accident · Serious injuriesLimited investigationFinal reportPeterson Dragonfly · Mulino, ORFuel starvation of the engine while in cruise flight due to the owner/builder's alteration of the fuel system from that shown in the aircrafts plans. Factors include very rough terrain in the area where the pilot found it necessary to make his forced landing.NTSB SEA02LA168Accident · Serious injuriesLimited investigationFinal reportNolley BD-5 · Corvallis, ORFuel starvation resulting in a loss of engine power during the aircraft's initial climb. A disconnected fuel line was a factor.NTSB SEA02LA072Accident · 1 fatalLimited investigationFinal reportGallagher Taylor "Coot" · Creswell, ORA loss of engine power due to oil starvation followed by the pilot's failure to maintain aircraft control during the initial climb shortly after takeoff. An improper engine modification was a factor.NTSB SEA02LA069Accident · No injuriesLimited investigationFinal reportWoodley Zodiac 601HD · Beaver, ORA partial failure of the electrical (ignition) system and a short to the master electrical switch during cruise flight resulting in a loss of engine power. A collision with an embankment during the landing roll was a factor.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 SEA00LA077Accident · No injuriesLimited investigationFinal reportPZL-Bielsko Jantar 2A · Hood River, ORThe pilot's failure to maintain directional control of the glider after its wing came in contact with long grass growing on the runway surface. Factors include the pilot's improper decision to attempt a landing on a runway with known directional control…NTSB SEA98LA163Accident · No injuriesLimited investigationFinal reportSix/Huber RV-6 · Roseburg, ORA total loss of engine power for undetermined reasons.NTSB SEA98FA109Accident · No injuriesField investigationFinal reportNolley BD-5T · Corvallis, ORThe introduction of a fuel containing an ethanol additive into fuel tanks sloshed/sealed with a compound incompatible with alcohols, resulting in debonding of the compound from the fuel tank walls, leading to partial blockage of an in-line fuel filter, and a…NTSB SEA98LA008Accident · 1 fatalLimited investigationFinal reportBeckham RV-4 · Scio, ORThe pilot-in-command's loss of control of the aircraft for undetermined reasons.NTSB SEA97LA020Accident · Minor injuriesLimited investigationFinal reportKarmy Rotorway Exec · Redmond, ORThe pilot's failure to remove the dolly wheels during the preflight inspection.NTSB SEA96LA188Accident · Minor injuriesLimited investigationFinal reportJonas Exec 90 · Hermiston, ORslippage of the drive belts, while hover taxiing in ground effect, which resulted in loss of power to the rotor system; and inadequate remedial action by the pilot, which led to a roll over during touch down (forced landing). A factor relating to the accident…NTSB SEA96LA162Accident · No injuriesLimited investigationFinal reportConkey/Wapelhorst Lancair 235 · Cottage Grove, ORrelease of the main landing gear locking mechanism for undetermined reason(s).NTSB SEA95LA007Accident · Minor injuriesLimited investigationFinal reportBony MB-1 · Madras, ORThe jamming of the rudder during due to undetermined reasons. Contributing to the accident was the pilot-in-command's failure to maintain adequate flying speed while attempting to take remedial action.