NTSB investigations: Amateur-built UNKNOWN ENG, WA
89 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
| 1969 | 1 |
|---|---|
| 1975 | 1 |
| 1977 | 1 |
| 1978 | 1 |
| 1980 | 2 |
| 1982 | 2 |
| 1984 | 3 |
| 1985 | 1 |
| 1987 | 1 |
| 1988 | 3 |
| 1989 | 1 |
| 1990 | 2 |
| 1991 | 2 |
| 1992 | 2 |
| 1993 | 2 |
| 1994 | 1 |
| 1996 | 2 |
| 1997 | 1 |
| 1999 | 3 |
| 2000 | 3 |
| 2001 | 2 |
| 2002 | 2 |
| 2003 | 3 |
| 2004 | 7 |
| 2005 | 3 |
| 2006 | 3 |
| 2007 | 1 |
| 2008 | 3 |
| 2009 | 5 |
| 2010 | 1 |
| 2011 | 1 |
| 2012 | 3 |
| 2013 | 2 |
| 2014 | 2 |
| 2015 | 4 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 4 |
| 2024 | 2 |
| 2025 | 2 |
| 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\" = 'WA' 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" = 'WA' 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 WPR26LA265Accident · No injuriesClass 4 · LimitedFinal reportVans RV-7A · Covington, WAThe pilot’s improper pitch control during landing, which resulted in a bounced landing, nose landing gear collapse, and nose over.NTSB WPR26LA072Accident · No injuriesClass 4 · LimitedFinal reportZenith 750 · Yacolt, WAA loss of engine power for undetermined reasons.NTSB WPR25LA308Accident · Serious injuriesClass 4 · LimitedFinal reportThomas Graham Teenie Two · Chehalis, WAThe pilot's improper decision to take off with the airplane over its maximum allowable gross weight, which degraded its climb performance and led to a subsequent off airport landing.NTSB WPR24LA188Accident · Serious injuriesClass 3 · LimitedFinal reportDavid Fisher Murphy Moose · Ocean Shores, WAThe pilot’s hard, bounced landing, subsequent failure to maintain adequate airspeed, and his exceedance of the airplane’s critical angle of attack during a go-around, which resulted in an aerodynamic stall and impact with terrain.NTSB WPR24LA113Accident · Minor injuriesClass 4 · LimitedFinal reportKitfox S7 Super Sport · Asotin, WAPilot’s failure to maintain clearance from powerlines during low altitude flying.NTSB WPR20LA014Accident · Serious injuriesClass 3 · LimitedFinal reportVans RV 6 · Spanaway, WAA total loss of engine power during the initial climb for reasons that could not be determined.NTSB GAA20CA018Accident · Serious injuriesData collectionFinal reportFoxworthy Rick A Sonex · Langley, WAThe pilot's failure to maintain a proper approach path, which resulted in impact with a tree.NTSB WPR19FA241Accident · 1 fatalClass 3 · FieldFinal reportGlaser Dirks DG 300 Elan · Wilkeson, WAThe pilot’s delayed decision to land following a loss of thermal lift, which resulted in collision with trees during the landing approach.NTSB WPR19FA091Accident · 1 fatalClass 2 · FieldFinal reportBell UH1B · Forks, WAA total loss of engine power due to the failure of the gas generator sealing disk as a result of the operator’s exceedance of the sealing disk life limits at too low an altitude for the pilot to accomplish a successful autorotation which resulted in the…NTSB WPR18FA261Accident · 2 fatalClass 3 · FieldFinal reportGruber Beelzabub · Rochester, WAThe pilot’s failure to maintain clearance from a tree while maneuvering at a low altitude.NTSB GAA18CA223Accident · No injuriesData collectionFinal reportKen Olson Scamp · Raymond, WAThe pilot's failure to maintain a proper landing flare, which resulted in an aerodynamic stall, bounced landing, and subsequent secondary stall during a go-around attempt.NTSB WPR17LA153Accident · Minor injuriesClass 3 · LimitedFinal reportClark James T Vans RV8 · Spokane, WAAn inflight engine fire for reasons that could not be determined based on the available information, which melted the air filter element and obstructed the engine's air intakes, resulting in a total loss of engine power.NTSB WPR16LA011Accident · No injuriesLimited investigationFinal reportChristopher Tom Kitfox 5 · Battle Ground, WAThe total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no preimpact mechanical malfunctions or failures that would have precluded normal operation.NTSB WPR16LA003Accident · Serious injuriesLimited investigationFinal reportCessna TU206G · Fall City, WAThe airplane’s collision with the ground short of the runway for reasons that could not be determined based on the available evidence.NTSB WPR15LA235Accident · Minor injuriesLimited investigationFinal reportCleveland Allan B Nieuport 11# · Bellingham, WAA partial loss of engine power for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or anomalies that would have precluded normal operation.NTSB GAA15CA139Accident · Minor injuriesData collectionFinal reportRandall W Grandpre CH-701 Zenith · Quincy, WAThe pilot's inadequate selection of a take-off area, resulting in a collision with obstacles and a loss of directional control.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 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 WPR14CA022Accident · No injuriesData collectionFinal reportCollins Zenith Stol CH 701 · Deer Park, WAThe pilot's inadequate flare and failure to maintain control of the airplane during the landing with a tailwind.NTSB WPR13LA360Accident · No injuriesLimited investigationFinal reportVersteeg Helicycle · Richland, WAThe pilot’s failure to maintain helicycle control during hover due to an inadvertent control input.NTSB WPR12CA344Accident · No injuriesData collectionFinal reportRotorway Exec · Colville, WAThe pilot's lack of experience in the helicopter, which resulted in his failure to maintain ground clearance during the taxi hover, followed by inadvertent ground contact and rollover.NTSB WPR12CA320Accident · No injuriesData collectionFinal reportPiper PA-30 · Yelm, WAThe pilot's failure to maintain an adequate airspeed on approach and his inadequate flare, which resulted in a hard landing.NTSB WPR12CA288Accident · Minor injuriesData collectionFinal reportDg-Flugzeugbau DG-500MB · Richland, WAThe failure of the spoilers to retract because the right wing spoiler’s lower plate became jammed, which resulted in the glider not having enough lift to make it to the runway surface.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 WPR11CA018Accident · Minor injuriesData collectionFinal reportDeitz Avid Flyer MK4 · Colville, WAThe pilot's failure to compensate for a wind gust and maintain runway alignment during final approach to land, which resulted in an in-flight collision with a tree.NTSB WPR09CA368Accident · Minor injuriesData collectionFinal reportSchweizer SGU 2-22CK · Ephrata, WAThe premature launch signal given by the wing walker.NTSB WPR09LA350Accident · Minor injuriesLimited investigationFinal reportBielawa Rotorway E · Sequim, WAThe failure (disbonding) of a composite main rotor blade for undetermined reasons, leading to an immediate loss of control in flight during hover.NTSB WPR09CA329Accident · No injuriesData collectionFinal reportNalis Glastar · Arlington, WAA total loss of engine power due to fuel starvation as a result of the pilot's failure to select the fullest tank prior to takeoff.NTSB WPR09CA283Accident · Minor injuriesData collectionFinal reportSmith Albert F Challenger TWO · Moses Lake, WAThe student pilot's inadequate compensation for the crosswind condition and failure to maintain lateral roll control of the airplane. Also causal was the flight instructor's failure to effectively communicate his instruction to relinquish the flight controls…NTSB WPR09CA232Accident · Minor injuriesData collectionFinal reportAtkins John RAF 2000 G · South Prairie, WAThe pilot's abrupt maneuver to avoid a collision that resulted in an airspeed reduction and subsequent loss of lift provided by the rotor system. Contributing to the accident was the failure of both pilots to maintain an adequate visual lookout for other…NTSB SEA08CA184Accident · No injuriesData collectionFinal reportWheat Excalibur EX · Moses Lake, WAThe right rudder pedal attach rivets sheared due to overload.NTSB SEA08CA177Accident · Minor injuriesData collectionFinal reportAnglin RV-6 · Puyallup, WAThe complete loss of engine power for undetermined reasons. Contributing to the accident were hidden obstructions (tree stumps) in the field of long grass within which the pilot executed his forced landing.NTSB SEA08LA120Accident · 2 fatalLimited investigationFinal reportYakovlev Yak 52 · Vancouver, WAThe pilot's failure to maintain an airspeed sufficient to avoid a stall during a low altitude aerobatic maneuver. Contributing to the accident was the low altitude at which the pilot initiated the maneuver.NTSB SEA07FA195Accident · 1 fatalField investigationFinal reportYakovlev YAK-55M · Everett, WAThe pilot's inadequate preflight planning and inspection that led to oil exhaustion and a catastrophic engine failure. Also causal was the pilot's attempted operation of an aircraft with known deficiencies, and the lack of a current airworthiness inspection.…NTSB SEA07LA011Accident · No injuriesLimited investigationFinal reportSorensen Searey · Marysville, WAThe pilot's failure to identify an unsafe condition (strong tidal currents) prior to a water landing, which resulted in the airplane nosing over when the pilot was unable to maintain aircraft control.NTSB SEA06LA133Accident · No injuriesLimited investigationFinal reportNanchang China CJ-6 · Brewster, WAThe failure of the engine's three planetary gears for undetermined reasons. A factor contributing to the accident was the tree orchard.NTSB SEA06LA134Accident · 3 fatalLimited investigationFinal reportTaylor Royal T · Davenport, WAThe pilot's failure to maintain aircraft control while maneuvering, resulting in a collision with terrain.NTSB SEA06CA010Accident · Minor injuriesData collectionFinal reportMichael Moneyhan Magnum · Cougar, WAThe pilot's inadequate in-flight decision to land on the uneven terrain, which resulted in the airplane nosing over. Factors contributing to the accident included the uneven terrain and the sunglare condition.NTSB SEA06CA008Accident · No injuriesData collectionFinal reportWilliams Challenger II · Spokane, WAThe loss of all engine power while on downwind for undetermined reasons.NTSB SEA05LA118Accident · Minor injuriesLimited investigationFinal reportRash Vans RV-6A · Palouse, WALoss of engine power for undetermined reasons. Rising terrain was a factor.NTSB SEA05CA027Accident · Minor injuriesData collectionFinal reportBreit Zodiac (CH-601-HDS) · Everett, WAThe pilot's failure to maintain aircraft control immediately after takeoff. A factor was the wake turbulence from the preceding airplane.NTSB SEA05LA133Accident · 2 fatalLimited investigationFinal reportAero Vodochody Aero. Works L-39C · Hyak, WAThe loss of aircraft control during climb to cruise due to an undetermined flight control malfunction.NTSB SEA04LA129Accident · No injuriesLimited investigationFinal reportLogston Starduster SA100DL · Arlington, WAThe pilot's failure to maintain clearance during taxi from another aircraft standing on the runway resulting in a collision. The aircraft standing on the runway was a factor.NTSB SEA04LA121Accident · No injuriesLimited investigationFinal reportExp Acft Assn Wi Chapter 60 Moni · Rochester, WAThe pilot's inadequate in-flight decision by failing to refuel, resulting in fuel exhaustion and the loss of power during descent. Factors contributing to the accident included the pilot's lack of experience in the aircraft and the tree.NTSB SEA04CA068Accident · No injuriesData collectionFinal reportYakovlev Yak 54 · Friday Harbor, WAThe pilot's failure to properly align with the runway. Factors include rough/uneven terrain, inadequate preflight planning and diminished forward visibility.NTSB SEA04LA063Accident · 1 fatalLimited investigationFinal reportGlasflugel STD Libelle 201B · Oso, WAThe pilot of the Glaser-Dirks (lead glider) failure to maintain clearance from the Glasflugel (trailing glider) resulting in a mid-air collision while maneuvering.NTSB SEA04CA054Accident · Minor injuriesData collectionFinal reportMenefee RAF Vari-Eze · Bremerton, WAFailure to maintain airspeed while on final approach resulting in a stall. Factors include a rough running engine for undetermined reasons and rough/uneven terrain.NTSB SEA04LA015Accident · No injuriesLimited investigationFinal reportSchmitt Exec 162F · Prosser, WAThe student pilot's abrupt application of excessive collective and the flight instructor's inadequate supervision of the student. Contributing factors were the ditch and low rotor RPM.NTSB SEA03LA163Accident · No injuriesLimited investigationFinal reportSchulze Lancair 360 · Vancouver, WALoss of engine power for undetermined reasons during the initial climb. Collision with a vehicle during landing was a factor.NTSB SEA03LA080Accident · No injuriesLimited investigationFinal reportAllen SA-300 · Yakima, WADirectional control was not maintained during the landing roll. A steering spring disconnected as a result of a tailwheel shimmy was a factor.