NTSB investigations: Amateur-built UNKNOWN ENG, 2004
58 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\") = 2004
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") = 2004
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 DEN05CA040Accident · No injuriesData collectionFinal reportDaniels Vans RV-8 · Albuquerque, NMthe pilot's failure to maintain directional control resulting in a ground loop.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 DFW05CA042Accident · Minor injuriesData collectionFinal reportOhlemeier/Stratton RV-7A · Gordonville, TXThe pilot's misjudged flare. Contributing factors were the uphill slope of the runway and the soft condition of the landing area.NTSB ATL05LA035Accident · No injuriesLimited investigationFinal reportBell UH-1H · Rockford, ALThe pilot's failure to maintain adequate obstacle clearance, which resulted in an in-flight collision with a tree.NTSB CHI05CA032Accident · Serious injuriesData collectionFinal reportOlson Sonex · Oconomowoc, WIThe loss of engine power due to a fatigue fracture of the crankshaft. An additional cause to the accident was the pilot/builder's failure to verify the dimensions of the shrink-fit crankshaft components prior reassembling the engine. A factor to the accident…NTSB MIA05LA029Accident · Serious injuriesLimited investigationFinal reportJoseph R. Sirgo Aquilla · Eustis, FLThe passenger's control interference, which resulted in a loss of control, and the airplane impacting a hangar during takeoff/initial climb.NTSB DEN05IA025Incident · No injuriesIncident investigationFinal reportBlair-American USA · Fort Collins, COthe Blair-American and the Cessna pilot's inadequate visual lookout, and student pilot's failure to give right-of-way to a landing aircraft, which resulted in a runway incursion and subsequent collision. Contributing factors include the student instructor's…NTSB MIA05FA017Accident · 1 fatalField investigationFinal reportCessna P206 · Jacksonville, FLThe improper setting of the elevator trim by the pilot-in-command, his failure to follow the checklist related to elevator trim setting, and his failure to maintain VS during climb after takeoff resulting in an inadvertent stall, uncontrolled descent, and…NTSB MIA05CA038Accident · No injuriesData collectionFinal reportSteven W. Jones KR2 · Zellwood, FLThe failure of the pilot to maintain directional control during landing resulting in the on-ground collision with a drainage ditch.NTSB ATL05LA017Accident · Serious injuriesLimited investigationFinal reportDavid Nielson Ison Hi-Max 1700 · Hendersonville, NCThe pilot's failure to maintain airspeed which resulted in an inadvertent stall/spin and subsequent in-flight collision with terrain.NTSB NYC05LA012Accident · 1 fatalLimited investigationFinal reportDouglas Adventure Air Ampib · Pawtucket, RIThe pilot's failure to maintain aircraft control, which resulted in an inadvertent stall.NTSB DFW05LA012Accident · 1 fatalLimited investigationFinal reportHuber DR 107 · Fletcher, OKThe pilot's inadequate planning/decision to conduct an aerobatic maneuver without sufficient altitude to recover.NTSB LAX05LA014Accident · 1 fatalLimited investigationFinal reportAMS Flight Carat A · Minden, NVthe pilot's likely inadvertent entry into instrument meteorological conditions created by the rapidly changing cloud conditions that resulted in his spatial disorientation and exceeding the glider's ultimate design loads while in a spiral dive, which resulted…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 ATL05LA005Accident · Serious injuriesLimited investigationFinal reportMoody Easy Riser · Augusta, GAThe pilot's failure to maintain airspeed which resulted in an inadvertent stall/spin, and subsequent collision with the ground.NTSB CHI05CA005Accident · No injuriesData collectionFinal reportBuss Rotorway Exec · Eden Prairie, MNThe pilot's inadvertent deactivation of the battery switch leading to the helicopter's loss of engine power on base leg. A factor was the crops he encountered during the emergency landing.NTSB ANC05LA003Accident · No injuriesLimited investigationFinal reportScan 30 · Anchorage, AKAn in-flight fire during cruise flight for an undetermined reason.NTSB SEA05LA008Accident · No injuriesLimited investigationFinal reportHiggins Acro-Sport II · Coeur d'Alene, IDThe airplane's wood propeller separated from the airplane during cruise. A factor was the ditch that the airplane impacted during the landing roll subsequent to the forced landing.NTSB DEN05FA002Accident · 1 fatalField investigationFinal reportSukhoi SU-29 · Santa Fe, NMthe pilot's failure to maintain aircraft control resulting in the inverted spin, spiral, and subsequent impact with terrain. Factors contributing to the accident were the inadvertent stall spin, the spiral, low altitude, and the pilot's delayed attempt to…NTSB FTW04CA240Accident · No injuriesData collectionFinal reportCarter-Jones Volmer Sportsman · Grand Prarie, TXThe pilot's failure to complete a pre-landing checklist, which resulted in a gear down landing on the water. A factor was the pilot's diverted attention as a result of abnormal engine indications.NTSB FTW04CA242Accident · Minor injuriesData collectionFinal reportPiper PA-28-181 · Haskell, TXThe pilot's improper inflight planning which resulted in a loss of engine power due to fuel exhaustion. A factor was the lack of suitable terrain for the forced landing.NTSB LAX04LA322Accident · 2 fatalLimited investigationFinal reportWolf Glassair IIS · Mesa, AZa partial loss of power for undetermined reasons, and, the failure of the pilot to maintain an adequate airspeed while maneuvering for a forced landing that resulted in a stall and a collision with terrain.NTSB CHI04IA260Incident · No injuriesIncident investigationFinal reportMcDonnell Douglas DC-9-82 · Chicago, ILAn in-flight collision with a flock of birds during climb out after takeoff, which damaged the left engine fan module and ruptured a fuel line to the fuel-oil cooler causing an engine fire.NTSB LAX04CA316Accident · No injuriesData collectionFinal reportSmith S-51D · Lancaster, CAthe pilot's misjudged landing flare, failure to correct the descent rate, and failure to execute a go-around during an unstablized landing approach.NTSB LAX04LA313Accident · 2 fatalLimited investigationFinal reportRedgate Europa Classic · Marble Canyon, AZan in-flight collision with terrain for undetermined reasons.NTSB NYC04LA201Accident · No injuriesLimited investigationFinal reportPZL 101 · Chazy, NYThe total loss of engine power due to the fractured crankshaft.NTSB ANC04LA098Accident · 1 fatalLimited investigationFinal reportde Havilland DHC-3 · McGrath, AKThe pilot's inadequate in-flight planning/decision making, his continued VFR flight into instrument meteorological conditions, and his failure to maintain obstacle clearance. Factors contributing to the accident were low ceilings due to smoke, rain, and mist.NTSB CHI04LA245Accident · Serious injuriesLimited investigationFinal reportFall Cub · Rockville, INThe fuel starvation encountered due to the builder's inadequate fuel system design and the subsequent loss of engine power during a maneuver for the landing approach. Factors were the tree and corn.NTSB ANC04LA093Accident · 1 fatalLimited investigationFinal reportHudson Hiperbipe SNS-7 · Palmer, AKThe pilot's failure to maintain control of the airplane, which resulted in an uncontrolled descent and subsequent in-flight collision with trees. A factor associated with the accident was a low altitude maneuver preformed by the pilot just after takeoff.NTSB MIA04LA111Accident · No injuriesLimited investigationFinal reportRobert J. Labonte Defiant · DeLand, FLThe failure of the pilot to fully extend the nose landing gear resulting in collapse of it during the landing roll. A contributing factor in the accident was the lack of a nose landing gear down and locked indicator.NTSB FTW04LA196Accident · Minor injuriesLimited investigationFinal reportEverett Vidrine Dragonfly · Covington, LAthe pilot's inadequate preflight planning which failed to assure adequate takeoff performance for the airplane to clear obstacles. A contributing factor was the pilot's failure to abort the takeoff.NTSB LAX04LA274Accident · 1 fatalLimited investigationFinal reportFinke Rotorway Exec 162F · Cameron Park, CAThe owner-builder's improper main rotor blade (MRB) maintenance/installation by under torquing the blade retaining nut.NTSB DEN04LA108Accident · No injuriesLimited investigationFinal reportDavis-Zenair Stol CH 801 · Erie, COimpact with terrain during a forced landing following a loss of engine power for underdetermined reasons. A contributing factor was the lack of suitable terrain for a forced landing.NTSB FTW04CA192Accident · Minor injuriesData collectionFinal reportRotorway Exec · Conroe, TXThe loss of engine power due to the tripped fuel pump circuit breaker which resulted in the failure of the electric fuel pump.NTSB CHI04CA190Accident · No injuriesData collectionFinal reportSelby Dean KR-2-SS · Lake Elmo, MNThe pilot's inadequate compensation for wind conditions and his failure to maintain aircraft control. A related factor was the crosswind.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 DEN04CA101Accident · No injuriesData collectionFinal reportWhitlock Rotorway Exec 162F · Meeker, COaircraft control not maintained by the pilot. A contributing factor was the failure of the supercharger.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 FTW04FA167Accident · 2 fatalField investigationFinal reportBell 206B · Cushing, OKthe pilot's inadequate in-flight planning/decision and his failure to maintain obstacle clearance. Contributing factors were low altitude flight, sun glare, and the static wires.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 FTW04LA152Accident · No injuriesLimited investigationFinal reportWSK PZL Mielec M-18A · Dumas, ARThe loss of engine power for undetermined reasons.NTSB LAX04LA229Accident · No injuriesLimited investigationFinal reportSimmons BD-5 · Goodyear, AZThe overheating and failure of the number 4 connecting rod, which resulted in a total loss of engine power during descent.NTSB CHI04CA142Accident · No injuriesData collectionFinal reportKauffman Bede IV · Acme, MIEngine oil starvation and inadequate maintenance by the pilot.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 ANC04LA052Accident · No injuriesLimited investigationFinal reportDouglas C-54B · McGrath, AKA fuel tank explosion in the left wing auxiliary fuel tank, and subsequent fuel fire that occurred during engine start for an undetermined reason.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 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 ATL04LA104Accident · 1 fatalLimited investigationFinal reportSukhoi SU-31 · Fort Lauderdale, FLThe pilot's failure to recover from an intentional spin during an attempted aerobatic maneuver.NTSB LAX04LA195Accident · No injuriesLimited investigationFinal reportSpirangam Velocity · Boulder City, NVthe pilot's failure to maintain directional control of the airplane during the landing rollout.NTSB FTW04LA109Accident · No injuriesLimited investigationFinal reportSpannagel RV-8A · Borger, TXA partial loss of engine power as a result of inadequate clearance between the journals and bearings.