NTSB investigations: Amateur-built UNKNOWN ENG, 1994
26 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\") = 1994
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") = 1994
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 ATL95LA017Accident · 1 fatalLimited investigationFinal reportWSK PZL Mielec TS-11 Iskra · Shelby, NCThe pilot's failure to maintain landing approach speed, which resulted in a final approach stall. Factors were the night lighting conditions, and the pilot's failure to use the landing light.NTSB FTW95FA047Accident · 1 fatalField investigationFinal reportGrumman-Schweizer G-164B · Wisner, LAThe pilot's failure to maintain minimum required airspeed for flight. A factor was the pilot's lack of total experience in the type of aircraft.NTSB FTW95LA040Accident · No injuriesLimited investigationFinal reportFighter Escort Wings P-51D · Seymour, TXThe failure of the propeller speed unit. A factor was the lack of suitable terrain for the forced landing.NTSB LAX95FA029Accident · Serious injuriesField investigationFinal reportCessna 421A · Sparks, NVThe pilot's improper use of the fuel selector and subsequent fuel starvation.NTSB FTW95LA027Accident · Serious injuriesLimited investigationFinal reportGardner SEA REY · Hartman, ARFailure of the pilot to follow the landing checklist and retract the landing gear for a water landing.NTSB FTW95FA020Accident · 1 fatalField investigationFinal reportBrantly Helicopter B-2 · Artesia, NMThe pilot's impairment of judgment and performance due to drugs, and his failure to maintain clearance from a powerline.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.NTSB SEA94LA244Accident · No injuriesLimited investigationFinal reportI.C.A. Brasov IS-28B2 · Bozeman, MTThe student pilot's improper compensation for wind. The crosswind was a factor.NTSB NYC94LA173Accident · No injuriesLimited investigationFinal reportSchleicher ASW15B · Dansville, NYThe pilot allowed the speed of the glider to get to low on final approach which resulted in a rapid descent, subsequent undershoot of the runway, and impact with a tree. A factor in this accident was a downdraft condition.NTSB ANC94FA130Accident · 1 fatalField investigationFinal reportPiper PA-18 · Gulkana, AKThe pilot's failure to maintain clearance from terrain.NTSB LAX94LA337Accident · Serious injuriesLimited investigationFinal reportBalloon Works Firefly 8-24 · Sedona, AZa tip over of the balloon and basket during a high wind landing due to the pilot's inability to compensate for the increased wind speed conditions during the final stages of the flight and landing.NTSB CHI94LA279Accident · No injuriesLimited investigationFinal reportHughes TH-55A · Houghton, MIfailure of the pilot to maintain control of the aircraft.NTSB LAX94LA293Accident · Minor injuriesLimited investigationFinal reportBurkhart Grob G103 · Tehachapi, CAthe pilot's failure to secure the canopy before takeoff, and his failure to maintain directional control during landing rollout.NTSB CHI94LA238Accident · No injuriesLimited investigationFinal reportPiper PA-22 · Harvard, ILthe pilot's excessive taxi speed. A factor in the accident was the wet grass runway.NTSB LAX94LA273Accident · Minor injuriesLimited investigationFinal reportAdams Thorpe T-18 · Stockton, CAA vapor lock induced engine failure due to inadequate thermal shielding of the fuel pump and lines. Soft terrain in the landing area was a factor.NTSB CHI94LA198Accident · No injuriesLimited investigationFinal reportBeech 18 · Belleville, MIthe failure of the fuel line on the unique STC'd engine installation. A related factor is the improper installation of a fuel line by company maintenance personnel.NTSB ATL94LA118Accident · 1 fatalLimited investigationFinal reportMonnett Moni · Ashville, NCThe failure of the pilot to maintain control of the aircraft. A factor in the accident was the thunderstorm off the departure end of the runway.NTSB ATL94LA117Accident · Serious injuriesLimited investigationFinal reportCessna 140 · Bainbridge, GAThe loss of engine power for undetermined reasons.NTSB SEA94LA143Accident · No injuriesLimited investigationFinal reportWray KR-2 · Puyallup, WAAn improperly functioning fuel boost pump.NTSB LAX94LA222Accident · No injuriesLimited investigationFinal reportHillberg EH-101 · Corona, CAthe pilot's loss of control of the helicopter while hovering downwind. A lack of test-flight data to establish the aircraft's performance limitations was a factor in the accident.NTSB LAX94LA221Accident · Minor injuriesLimited investigationFinal reportBell 206A · Ukiah, CAthe pilot's inadequate compensation for the existing wind conditions which resulted in a loss of tail rotor effectiveness event and a subsequent loss of directional control.NTSB SEA94LA119Accident · 1 fatalLimited investigationFinal reportHallstrom BD-5B · St. George, UTCarburetor contamination and low output, and the pilot's improper decision to attempt to continue the approach. A factor was the pilot's lack of recent flight experience.NTSB CHI94LA145Accident · No injuriesLimited investigationFinal reportPiper PA-24-250 · Rochelle, ILthe pilot's inadequate use of carburetor heat. Factors associated with the accident were carburetor icing conditions and rough terrain.NTSB CHI94DEE01Accident · 2 fatalFinal reportRemote Sensing Cirrus VK-30 · Lk In The Hills, ILfuel starvation resulting from the modification of the fuel system. A factor was the modification to the fuel system.NTSB NYC94LA072Accident · Serious injuriesLimited investigationFinal reportRandolph Flagg Boredom Fighter · Norridgewock, METhe loss of engine power for undetermined reasons.NTSB CHI94IA095Incident · Minor injuriesIncident investigationFinal reportBritish Aerospace ATP · Mosinee, WIthe inadequate design of the PBSI electrical switch(es), and the operator's failure to expeditiously implement corrective Service Bulletins.