NTSB investigations: Amateur-built UNKNOWN ENG, MI
74 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 | 1 |
|---|---|
| 1967 | 1 |
| 1970 | 1 |
| 1971 | 2 |
| 1972 | 1 |
| 1974 | 2 |
| 1975 | 1 |
| 1976 | 1 |
| 1977 | 1 |
| 1979 | 1 |
| 1980 | 1 |
| 1981 | 1 |
| 1982 | 1 |
| 1983 | 2 |
| 1984 | 1 |
| 1985 | 3 |
| 1986 | 2 |
| 1987 | 1 |
| 1988 | 3 |
| 1991 | 1 |
| 1992 | 1 |
| 1993 | 1 |
| 1994 | 2 |
| 1995 | 2 |
| 1997 | 1 |
| 1998 | 1 |
| 2000 | 3 |
| 2001 | 2 |
| 2002 | 2 |
| 2003 | 1 |
| 2004 | 1 |
| 2005 | 2 |
| 2006 | 3 |
| 2007 | 3 |
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 2 |
| 2011 | 2 |
| 2012 | 1 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 1 |
| 2018 | 2 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
| 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\" = 'MI' 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" = 'MI' 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 CEN26LA293Accident · No injuriesClass 3 · LimitedInvestigation openGildea William D Jabiru Calypso · Lake Isabella, MINTSB CEN25LA390Accident · Serious injuriesClass 4 · LimitedFinal reportCameron Balloons US Z-90 · Cedar Springs, MIThe passenger’s loss of balance during landing that resulted in a serious injury.NTSB CEN24LA185Accident · Serious injuriesClass 3 · LimitedFinal reportTitan T51 · Novi, MIA failure of the electrical system, resulting in a loss of fuel injection and subsequent loss of engine power.NTSB CEN23FA410Accident · 1 fatalClass 3 · FieldFinal reportSonex Sonex · Dowagiac, MIThe total loss of engine power due to the failure of the ignition distributor rotor.NTSB CEN23FA361Accident · Serious injuriesClass 3 · FieldFinal reportMikoyan Gurevich MIG-23UB · Belleville, MIA reported partial loss of engine power while maneuvering for reasons that could not be determined.NTSB CEN22LA336Accident · Serious injuriesClass 3 · LimitedFinal reportBeech A36 · Ray, MIThe pilot’s early rotation on takeoff, which resulted in insufficient airspeed and an inability to gain sufficient altitude to clear the trees.NTSB CEN22LA089Accident · Minor injuriesClass 3 · LimitedFinal reportLancair IV · Iron Mountain, MIThe total loss of engine power after takeoff for undetermined reasons.NTSB CEN22FA029Accident · 1 fatalClass 3 · FieldFinal reportVans RV · Harrison, MIThe pilot’s failure to maintain adequate airspeed and exceedance of the airplane’s critical angle of attack during landing approach, which resulted in an aerodynamic stall.NTSB CEN20CA337Accident · Serious injuriesClass 4 · Data collectionFinal reportEvektor Aerotechnik L13 · Frankenmuth, MIThe pilot's failure to stow the speed brake prior to attempting takeoff.NTSB GAA18CA466Accident · No injuriesData collectionFinal reportVans RV9 · Holland, MIThe pilot’s failure to maintain yaw control during a go-around.NTSB ANC18LA057Accident · 1 fatalLimited investigationFinal reportAeros Venture 2000 · Bad Axe, MIThe pilot's loss of aircraft control for reasons that could not be determined based on the available information.NTSB CEN15LA235Accident · Serious injuriesLimited investigationFinal reportLathrop Steven A B8M · Ravenna, MIA total loss of engine power due to carburetor icing.NTSB CEN14LA202Accident · 2 fatalLimited investigationFinal reportNanchang CJ6 - A · Flushing, MIThe pilot’s failure to maintain adequate airspeed during an off-airport forced landing after a loss of engine power due to carburetor icing and his exceedance of the airplane’s critical angle-of-attack, which resulted in an aerodynamic stall. Contributing to…NTSB CEN13LA383Accident · Serious injuriesLimited investigationFinal reportVink Robert D Youngster · Grand Haven, MIThe loss of engine power due to carburetor icing.NTSB CEN12LA626Accident · No injuriesLimited investigationFinal reportIson Eros · Schoolcraft, MIThe operation of an airplane by a non-certificated pilot and his failure to maintain airplane control during the initial climb, which resulted in an uncontrolled decent.NTSB CEN12LA014Accident · Serious injuriesLimited investigationFinal reportPeck Zodiac 601XL · Traverse City, MIA loss of engine power for undetermined reasons.NTSB CEN11FA431Accident · 2 fatalField investigationFinal reportBosonetto Thorp T-18 · Howell, MIThe pilot's failure to maintain airplane control and airspeed during final approach, which resulted in an aerodynamic stall/spin at a low altitude.NTSB CEN11CA047Accident · No injuriesData collectionFinal reportAardema Robert John 1 Aardema RAG WNG SP · Oshtemo, MIThe failure of the ignition system wiring, which resulted in a total loss of engine power.NTSB CEN10CA469Accident · Serious injuriesData collectionFinal reportHughes 269B · Lakeview, MIThe pilot's excessive descent angle during landing approach, which resulted in a settling with power condition.NTSB CEN09CA583Accident · No injuriesData collectionFinal reportSierra E5A Replica · Port Huron, MIThe pilot's failure to maintain aircraft control during landing.NTSB CHI08FA132Accident · 1 fatalField investigationFinal reportFairchild Hiller FH-1100 · Comstock, MIA loss of engine power in flight due to fuel exhaustion resulting from the pilot's inadequate fuel management. Contributing to the accident was the unsuitable terrain for a forced landing.NTSB CHI08CA008Accident · Serious injuriesData collectionFinal reportVeltman, Robert CH701 · Owosso, MIThe pilot inadvertantly turned the fuel selector to the off position and failed to maintain aircraft control during the subsequent loss of engine power. A factor associated with the accident was the pilot's change in his normal habit pattern.NTSB CHI07CA124Accident · No injuriesData collectionFinal reportWilkinson Daniel V Rotorway Exec 90 · Kalamazoo, MIThe failure of the sprag clutch which resulted in the disengagement of the drive unit and the pilot's misjudged landing during the autorotation. A factor was the low altitude at which the failure occurred.NTSB CHI07LA070Accident · Minor injuriesLimited investigationFinal reportReisinger Sonerai II L · Alma, MIThe loss of engine power during takeoff-initial climb for an undetermined reason. A factor in the accident was the lack of suitable terrain for a forced landing.NTSB CHI06LA260Accident · No injuriesLimited investigationFinal reportEndless Skies L164 · Durand, MIThe kit builder's improper installation of the aileron bracket leading to the aileron flutter during cruise that resulted in the wing spars' failure.NTSB CHI06CA217Accident · No injuriesData collectionFinal reportVeltman CH701 · Owosso, MIThe pilot's inadequate preflight planning and inadequate compensation for the tailwind condition. Factors included the tailwind and the power lines.NTSB CHI06CA116Accident · No injuriesData collectionFinal reportPalulis John Exec 162F · Kalkaska, MIThe compensation for wind conditions not performed by the pilot during hover. An additional cause was the tailwind.NTSB CHI05CA263Accident · Minor injuriesData collectionFinal reportKeith Avid Amphibian · Buchanan, MIThe loss of engine power for undetermined reasons and the unsuitable terrain for landing encountered by the pilot. A factor was the power lines.NTSB CHI05LA158Accident · No injuriesLimited investigationFinal reportPiper PA-28-180 · Allegan, MIThe inadequate aircraft control by the PA-28-180 pilot while the airplane was stopped.NTSB CHI04CA142Accident · No injuriesData collectionFinal reportKauffman Bede IV · Acme, MIEngine oil starvation and inadequate maintenance by the pilot.NTSB CHI03LA287Accident · No injuriesLimited investigationFinal reportStaudacher S-1000 · Newberry, MIThe pilot's inadequate compensation for the wind conditions, resulting in aircraft control not being maintained during the landing approach. Contributing factors to the accident were the gusting crosswind and the VASI system.NTSB CHI03LA006Accident · No injuriesLimited investigationFinal reportWolf Rotorway Exec-162F · Gregory, MIFailure of the secondary drive shaft, which resulted in a complete loss of power to the main rotor, and a high forward airspeed on touchdown, causing the helicopter to flip forward.NTSB CHI02LA277Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Martin, MIThe pilot's inadequate aircraft preflight and his inability to abort the takeoff due to the obscured windshield. Contributing to the accident was the bent hopper latch and the pilot's failure to maintain directional control.NTSB CHI01LA332Accident · Serious injuriesLimited investigationFinal reportAviaStrottel AC 4C · Marshfield, MIThe pilot's decision to release from the tow plane during the takeoff. A factor associated with the accident was the pilot's vision was restricted by his hat during the takeoff.NTSB CHI01LA155Accident · Serious injuriesLimited investigationFinal reportTorno Micro Mong · Petersburg, MIAircraft control not being maintained by the pilot during the forced landing. Factors to the accident were the loss of engine power, the overtemperature of the piston, the hole in the top of the number-one piston, and the encountered stall.NTSB CHI00FAMS2Accident · 1 fatalMissing aircraftFinal reportPeters RAF 2000 · Manistique, MIundetermined.NTSB CHI00LA225Accident · Minor injuriesLimited investigationFinal reportComeau Avid Flyer · Gladstone, MIaircraft control not maintained by the pilot.NTSB CHI00LA215Accident · No injuriesLimited investigationFinal reportLutke Rotoway Exec 90 · Kalamazoo, MIthe loss of main rotor rpm due to the failure of the top engine mount and the subsequent loss of the main rotor drive belt tension. A factor was the confined area landing zone.NTSB CHI98FAMS1Accident · 2 fatalMissing aircraftFinal reportAero Vodochody Aero. Works L-39C · Traverse City, MIUndetermined.NTSB CHI97LA190Accident · Serious injuriesLimited investigationFinal reportDietrich Nieuport 12 · Byron, MIThe owner/pilot mechanic's inadequate inspection of the aircraft which led to contamination (other than water) of the fuel filter.NTSB CHI95LA271Accident · Serious injuriesLimited investigationFinal reportBoeing 757 · Detroit, MIthe flight's encounter with turbulence.NTSB CHI95LA257Accident · No injuriesLimited investigationFinal reportNanchang 18A · Superior Twnshp, MIthe pilot's operation of the airplane with a known deficiency in the fuel selector, and his improper positioning of the fuel selector. A factor relating to the accident was: the fuel selector's restriction of movement.NTSB CHI94LA279Accident · No injuriesLimited investigationFinal reportHughes TH-55A · Houghton, MIfailure of the pilot to maintain control of the aircraft.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 CHI93DEC01Accident · Minor injuriesFinal reportBradford Pietenpol Skyscout · Eaton Rapids, MIthe pilot's failure to maintain airspeed which resulted in an inadvertant stall. Factors related to the accident were the low altitude and the restricted movement of the carburetor needle.NTSB CHI92DEM05Accident · Serious injuriesFinal reportTaylorcraft H-2 · Holland, MINot maintaining a sufficient airspeed during the reversal turn and encountering a stall/spin maneuver.NTSB CHI91LA214Accident · No injuriesLimited investigationFinal reportErcoupe 415-C · Sparta, MIInadequate preflight by the pilot and the pilot's failure to reach a proper touchdown point.NTSB CHI89LA025Accident · No injuriesLimited investigationFinal reportCessna 172P · Samaria, MINTSB CHI88DEM10Accident · No injuriesFinal reportGrumman G-164B · Schoolcraft, MIThe pilot failed to maintain directional control while maneuvering the aircraft to avoid an obstacle during the landing roll. The aircraft's right wing impacted a corn crop and the aircraft swerved/ground looped to the right and skidded to a stop, nose down.…NTSB CHI88LA168Accident · No injuriesLimited investigationFinal reportEnstrom 280FX · Menominee, MIDuring a demonstration of an autorotation to a run-on landing, the helicopter skids dragged in the soft grass upon touchdown, and the helicopter veered to the left. The pilot failed to maintain aircraft control when the helicopter veered left, the right skid…