NTSB investigations: Amateur-built UNKNOWN ENG, 1992
22 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\") = 1992
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") = 1992
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 LAX93LA076Accident · Minor injuriesLimited investigationFinal reportCurtiss JN-4D · Livermore, CAThe shearing of the number 8 cylinder rocker arm support pedestal/coolant housing retaining bolts. Contributing to the accident was a loss of engine coolant.NTSB NYC93LA047Accident · No injuriesLimited investigationFinal reportBeech C-24R · Meriden, CTThe pilot's improper airplane preflight, resulting in no airspeed indication during takeoff, and the subsequent abort with insufficient runway available to stop prior to a collision with the terrain.NTSB NYC93LA038Accident · 1 fatalLimited investigationFinal reportHelio H-700 · Shelton, CTThe pilot's failure to check the position of the landing gear before attempting a water landing.NTSB LAX93LA047Accident · 1 fatalLimited investigationFinal reportNorth American F-51D · Wellington, NVThe pilot's improper handling of his airplane during the performance of an aerobatic maneuver with inadequate altitude.NTSB LAX93LA039Accident · No injuriesLimited investigationFinal reportGlaser-Dirks DG400 · Calistoga, CAThe failure of the brakes due to a separation of the brake cable for undetermined reasons. A factor in the accident was the tailwind condition during the landing rollout.NTSB CHI93LA023Accident · No injuriesLimited investigationFinal reportCessna 140 · Waverly, IAThe pilot's excessive application of brakes during landing roll.NTSB FTW93LA010Accident · Serious injuriesLimited investigationFinal reportRaven S-60A · Albuquerque, NMThe pilot's failure to maintain visual lookout.NTSB ANC92LA157Accident · No injuriesLimited investigationFinal reportSikorsky S-58G · Port Alsworth, AKInflight engine compartment fire and post landing fire of undetermined origin.NTSB CHI92DEM05Accident · Serious injuriesFinal reportTaylorcraft H-2 · Holland, MINot maintaining a sufficient airspeed during the reversal turn and encountering a stall/spin maneuver.NTSB FTW92DPG12Accident · No injuriesFinal reportGrumman G-164A · Mc Crory, ARThe pilots failure to maintain directional control.NTSB SEA92LA172Accident · Minor injuriesLimited investigationFinal reportSchweizer SGU 2-22CK · Ephrata, WAThe pilot misjudged the landing flare. Factors include a lack of total pilot expereince.NTSB CHI92DEX04Accident · Minor injuriesFinal reportAlkire Pietenpol · Delphi, INSeparation of the propeller while in flight, and unsuitable terrain to effect a forced landing.NTSB SEA92LA169Accident · No injuriesLimited investigationFinal reportGreth Cirrus VK30 · Rawlins, WYThe pilot in command's failure to maintain control of the aircraft. Factors contributing to the accident were: crosswinds and gusts.NTSB SEA92LA139Accident · Minor injuriesLimited investigationFinal reportHarriman N-3 Ultra PUP · Arlington, WAThe partial loss of engine power, cause undetermined.NTSB NYC92IA129Incident · No injuriesIncident investigationFinal reportBoeing 767-231ER · Jamica, NYThe failure of the fifth stage low pressure turbine vanes due to fatigue.NTSB MIA92FA142Accident · 1 fatalField investigationFinal reportHughes 369HS · Labelle, FLThe pilot-in-command's improper application of collective pitch during an autorotative landing resulting in insufficient rotor RPM and in-flight collision with trees and the terrain. Contributing to the accident was the total loss of engine power due to fuel…NTSB FTW92LA140Accident · Minor injuriesLimited investigationFinal reportArdovino Mariucci CRI-CRI MC-12 · Arlington, TXTotal power loss caused by blocked carburetor screen and ignition points open beyond manufacturer's specification. A factor was inadequate annual inspection and ignition point maintenance adjustment not performed.NTSB FTW92LA132Accident · No injuriesLimited investigationFinal reportSchweizer G-164D · Welsh, LAThe engine failure at liftoff due to the failure of multiple turbine blades and the pilot's inability to maintain directional control during the aborted takeoff.NTSB LAX92LA208Accident · No injuriesLimited investigationFinal reportCorbus/Winters BD-5B · Fresno, CAThe total loss of engine power during initial climb due to a fracture and failure of the engine starter ring gear. A contributing factor which was related to the mechanical failure was the airplane owner's inadequate maintenance.NTSB ATL92LA086Accident · 1 fatalLimited investigationFinal reportGlaser-Dirks DG-600/18M · Newnan, GAThe loss of engine power for undetermined reasons, and the pilot's failure to maintain airspeed, which resulted in an inadvertent stall at too low of an altitude to effect recovery.NTSB CHI92LA126Accident · Serious injuriesLimited investigationFinal reportCessna 170B · St. James, MOThe pilot's failure to maintain clearance from terrain during the attempted takeoff and climb out. A related factor was the rising terrain.NTSB DCA92RA020Accident · 30 fatalForeign investigationConvair 640 · Kafoutine, Senegal