NTSB investigations: Amateur-built UNKNOWN ENG, 1996
30 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\") = 1996
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") = 1996
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 MIA97LA045Accident · No injuriesLimited investigationFinal reportIssoire-Aviation PIK-30 · Boynton Beach, FLfailure of the engine to restart for undetermined reason(s), after gliding (sailing) for about 3 hours, resulting in a forced landing in a swamp.NTSB SEA97LA020Accident · Minor injuriesLimited investigationFinal reportKarmy Rotorway Exec · Redmond, ORThe pilot's failure to remove the dolly wheels during the preflight inspection.NTSB SEA96LA220Accident · No injuriesLimited investigationFinal reportRalph Taylor Royal T · Kent, WAin-flight collision with an unknown object.NTSB FTW96LA377Accident · Serious injuriesLimited investigationFinal reportPzl-Mielec MIG-17 · Amarillo, TXThe pilot's excessive takeoff rotation which led to premature lift-off at a speed inadequate to maintain flight. A factor was the pilot's lack of experience in the MIG-17.NTSB FTW96LA360Accident · Minor injuriesLimited investigationFinal reportCresap Early Bird Jenny · Kersey, COFailure of the throttle linkage. A related factor was the lack of suitable terrain for the forced landing.NTSB FTW96LA356Accident · No injuriesLimited investigationFinal reportBell 47 Soloy · Intracoastal, LAthe loss of aircraft control by unknown person(s).NTSB SEA96LA196Accident · Serious injuriesLimited investigationFinal reportWestcott Glasair I-FT · Puyallup, WAfailure of the air inlet screen, and subsequent ingestion of the foam air filter. An inadequate maintenance modification by the amateur builder and no suitable landing area were related factors.NTSB SEA96LA191Accident · No injuriesLimited investigationFinal reportChampion 7ECA · Lander, WYthe pilot's failure to maintain directional control of the airplane during the landing roll. Factors relating to the accident were: the variable and gusty wind conditions.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 FTW96LA294Accident · Minor injuriesLimited investigationFinal reportO'Day Sonerai II-LS · Friendswood, TXa loss of engine power for undetermined reasons, and the pilot's failure to attain the proper traffic pattern altitude on the downwind leg prior to turning the base leg.NTSB CHI96LA225Accident · Serious injuriesLimited investigationFinal reportSisk BD-5 · Lake Geneva, WIfailure of the pilot to abort the takeoff, while there was sufficient runway remaining. The high temperature and calm wind were related factors.NTSB MIA96FA168Accident · 2 fatalField investigationFinal reportHiller FH-1100 · Webster, FLinadequate compliance with AD 77-07-08 (and SB FH1100-55-2A) by other maintenance personnel, and subsequent fatigue failure of plates in the tail rotor torsion tension bar. Factors related to the accident were: manufacturing discontinuities…NTSB CHI96LA208Accident · No injuriesLimited investigationFinal reportAerotechnik L-13 · Wichita, KSthe pilot's inadequate in-flight planning. Factors were the insufficient altitude and the dead battery.NTSB CHI96LA192Accident · No injuriesLimited investigationFinal reportCarrison-Seiman Schukert D-1 · Gardner, KSan aileron control malfunction of undetermined origin. A factor was the pilot's inability to control the airplane.NTSB NYC96LA117Accident · Minor injuriesLimited investigationFinal reportCessna 177B · Chatham, MAfailure of the oil pump, which resulted in oil starvation and subsequent failure of the number two and four cylinder connecting rods. Also causal was inadequate maintenance by noncompliance with the airworthiness directive that required replacement of the oil…NTSB LAX96LA212Accident · Serious injuriesLimited investigationFinal reportSchleicher ASW-20 · Sparks, NVthe pilot's inadequate compensation for wind conditions during the takeoff roll, and his failure to maintain control of the glider. The gusty wind condition was a related factor.NTSB NYC96LA114Accident · Minor injuriesLimited investigationFinal reportWaco UPF-7 · East Canton, PAthe pilot's inadequate compensation for wind conditions, and his failure to maintain directional control, which resulted in a loss of control and subsequent collision with obstacles. The gusty crosswind condition was a related factor.NTSB FTW96FA216Accident · 2 fatalField investigationFinal reportNanchang CJ-6A · Shreveport, LAa loss of engine power due to failure of the pressure carburetor diaphragm which led to restricted fuel flow through the carburetor and eventual fuel starvation. Factors contributing to the accident were the unsuitable terrain and tall trees which resulted in…NTSB IAD96LA077Accident · Minor injuriesLimited investigationFinal reportHiller UH-12E · Hellam, PAthe pilot's loss of directional control during aerial application for undetermined reasons.NTSB NYC96LA104Accident · Serious injuriesLimited investigationFinal reportSchweizer SGS-2-33A · Readington, NJthe pilot's inadequate evaluation of the weather, and his misjudgment of altitude and distance from the runway. Contributing factors were the pilot's lack of recent experience and the weather.NTSB FTW96IA210Incident · No injuriesIncident investigationFinal reportBoeing 737-300 · Dallas, TXfailure of the pilot to maintain directional control and runway alignment, during the landing roll out. Factors relating to the incident were: darkness, the adverse weather condition, the wet runway, and reduced visibility due to the inadvertent encounter…NTSB ANC96LA069Accident · No injuriesLimited investigationFinal reportGillespie Challenger 2 · Talkeetna, AKThe pilot's failure to properly use the mixture control to enrich the fuel mixture, and the seizure of the piston in the cylinder.NTSB CHI96IA145Incident · Minor injuriesIncident investigationFinal reportBoeing 727-222A · Chicago, ILa passenger disturbance that required the flight attendant to leave her seat. A factor in this accident was the encounter with turbulence as the flight attendant was performing her assigned duties.NTSB MIA96LA113Accident · 2 fatalLimited investigationFinal reportSnowbird 636D4 · Okeechobee, FLthe failure of the main rotor control connecting rod, which rendered the control stick unusable and led to a loss of control.NTSB CHI96LA110Accident · No injuriesLimited investigationFinal reportYakovlev YAK C-11 · North Vernon, INFailure of the pilot to maintain adequate airspeed during an aborted landing, which resulted in an inadvertent stall.NTSB FTW96LA132Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Dewitt, ARa loss of engine power due to the malfunction of the carburetor as a result of an improper overhaul. A factor was the unsuitable terrain for the forced landing.NTSB LAX96LA112Accident · 1 fatalLimited investigationFinal reportSteeves KR2 · San Diego, CAfailure of the pilot to maintain an adequate airspeed margin above stall, while at low altitude in the traffic pattern. His decision to explore the slow speed envelope of the aircraft at low altitude was a related factor.NTSB LAX96IA087Incident · No injuriesIncident investigationFinal reportBoeing 747-251B · Los Angeles, CAThe fatigue fracture of the number 4 bearing oil pressure tube due to an improper maintenance cleaning procedure by company maintenance personnel.NTSB SEA96FA036Accident · 1 fatalField investigationFinal reportPiper PA-28-235 · Lehi, UTcontinued VFR flight by the pilot into instrument meteorological conditions (IMC), and his failure to maintain sufficient altitude and/or clearance from mountainous terrain. Factors relating to the accident were: darkness, low ceiling, and snow.