NTSB investigations: Amateur-built UNKNOWN ENG, IL
39 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 |
|---|---|
| 1969 | 1 |
| 1976 | 1 |
| 1977 | 1 |
| 1980 | 1 |
| 1982 | 2 |
| 1983 | 1 |
| 1985 | 3 |
| 1994 | 3 |
| 1996 | 1 |
| 2000 | 1 |
| 2001 | 1 |
| 2003 | 2 |
| 2004 | 1 |
| 2006 | 3 |
| 2007 | 4 |
| 2008 | 1 |
| 2010 | 2 |
| 2011 | 2 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 1 |
| 2019 | 2 |
| 2021 | 1 |
| 2025 | 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\" = 'IL' 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" = 'IL' 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 CEN25LA078Accident · No injuriesClass 4 · LimitedFinal reportZenith Stol CH750 · Byron, ILThe pilot inadvertently moved the ignition key to the off position and broke the key, which resulted in a loss of engine power and subsequent forced landing.NTSB CEN21LA402Accident · No injuriesClass 3 · LimitedFinal reportMurphy Renegade II · Sheridan, ILA total loss of engine power during initial climb due to a piston seizure.NTSB GAA19CA298Accident · No injuriesData collectionFinal reportPiper PA18 · Sparta, ILThe pilot's failure to maintain directional control during the landing roll, which resulted in a ground-loop.NTSB CEN19LA152Accident · Minor injuriesClass 3 · LimitedFinal reportRand Robinson KR2 · Poplar Grove, ILThe loss of engine power due to vapor lock of the throttle body injection system.NTSB CEN15LA402Accident · Serious injuriesLimited investigationFinal reportViking Dragonfly · Freeport, ILThe airplane’s degraded climb performance due to its being over its maximum gross weight and a hole in the engine exhaust.NTSB CEN15LA028Accident · 1 fatalLimited investigationFinal reportHuebbe Sonex HB · Plainview, ILThe loss of engine power during cruise flight due to a fatigue fracture of the crankshaft, which resulted in a forced landing on unsuitable terrain.NTSB CEN13FA509Accident · 1 fatalField investigationFinal reportCessna 421C · Paris, ILThe pilot's failure to abort the takeoff during the ground roll after detecting the airplane's degraded performance. Contributing to the accident was the pilot's decision to attempt a flight with a known problem with the left engine and the likely partial…NTSB CEN12IA050Incident · No injuriesIncident investigationFinal reportNusbaum Vaquero · Hebron, ILThe pilot’s operation of the airplane with known medical conditions and his subsequent heart attack during the flight.NTSB CEN11LA596Accident · No injuriesLimited investigationFinal reportSuminski Walter M Jabiru SP · Columbia, ILSeparation of the right main wheel during landing rollout for undetermined reasons.NTSB CEN11LA090Accident · 1 fatalLimited investigationFinal reportSoutherland Freebird Litesport U · Decatur, ILThe pilot's reported inability to control his amateur-built airplane for undetermined reasons after the airplane inadvertently became airborne while conducting a high-speed taxi.NTSB CEN10CA537Accident · Minor injuriesData collectionFinal reportLewis Brandon Scott Exterminator · Rockford, ILThe pilot's failure to maintain control of the gyrocopter while practicing takeoffs and landings.NTSB CHI08LA169Accident · No injuriesLimited investigationFinal reportMorrison E-Racer · Aurora, ILAn undetermined failure in the high-pressure fuel system, and the subsequent loss of engine power and in-flight fire. Contributing to the accident were the pilot's restricted visibility due to the smoke in the cockpit, failure of the aileron control during…NTSB CHI07FA286Accident · 2 fatalField investigationFinal reportYakovlev Yak 52 · Lake-in-Hills, ILThe airplane descended and impacted terrain during initial climb for undetermined reasons. Contributing to the accident was the soft, uphill terrain.NTSB CHI07CA214Accident · Minor injuriesData collectionFinal reportGrumman G-164B · Sheldon, ILThe pilot's inability to maintain a proper rate of climb during takeoff. Factors associated with the accident were the pilot's failure to dump the chemical load and the ditch which the airplane contacted.NTSB CHI07CA165Accident · Minor injuriesData collectionFinal reportWSK PZL Mielec PZL-M-18 · Manito, ILThe pilot's failure to maintain proper airspeed and his decision to attempt flight over maximum gross weight. A factor to the accident was the stall encountered while attempting to avoid obstacles.NTSB CHI07LA106Accident · Minor injuriesLimited investigationFinal reportBrowns Vans RV-7A · Gardner, ILEngine failure during cruise flight for undetermined reasons. A factor was the rough/uneven terrainNTSB CHI07FA009Accident · 1 fatalField investigationFinal reportBeech 95-B55 · Lawrenceville, ILThe improper judgment by the pilot to conduct a flight to, and execute an approach to, an airport with weather conditions that were below the required minimums. Also causal was the pilot's continued descent below the approach minimum descent altitude.…NTSB CHI06LA157Accident · 1 fatalLimited investigationFinal reportGood RV-6A · Peru, ILFailure of the pilot of the second airplane in the formation to maintain clearance with the lead airplane during the overhead recovery maneuver prior to landing.NTSB CHI06LA088Accident · No injuriesLimited investigationFinal reportIrwin Sonex 2180 · Rockford, ILThe loss of engine power due to the restricted movement of the throttle cable during cruise flight. A factor in the accident was the trees contacted during the forced landing.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 CHI04LA010Accident · No injuriesLimited investigationFinal reportWright Redux Association 1903 Wright Flyer · Bolingbrook, ILThe inadequate planning/decision by the pilot to begin a flight in gusting wind conditions, the pilot's lack of experience in the airplane, and the stall encountered by the pilot during takeoff. The wind gusts were a contributing factor.NTSB CHI04LA002Accident · Minor injuriesLimited investigationFinal reportGoldman Dragonfly · Peoria, ILThe loss of power for undetermined reasons and the inadvertent stall of the canard by the pilot on the turn to final during the forced landing, as well as the excessive descent rate causing the aircraft to "pancake" into the ground.NTSB CHI01LA152Accident · No injuriesLimited investigationFinal reportAllen Rotorway 162F · Jerseyville, ILthe improper autorotation by the pilot. Contributing factors were the engine failure for undetermined reason(s) and the muddy terrain.NTSB CHI00LA298Accident · No injuriesLimited investigationFinal reportMorrison E-RACER · Sugar Grove, ILthe owner/builder's inadequate modification to the engine air intake system and the inadvertent engine shutdown. Factors included the low air pressure of the air intake system and the excessive fuel flow to the manifold.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 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 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 CHI85LA378Accident · Minor injuriesLimited investigationFinal reportSchweizer 134 · Hampshire, ILThe pilot reportedly failed to use spoilers on final. The approach was high so he attempted a 180 degree turn at the departure end of the runway. The glider stalled and collided with the ground.NTSB CHI85IA212Incident · No injuriesIncident investigationFinal reportBoeing 727-023 · Chicago, ILAmerican airlines flt 57 had departed baltimore for Chicago. On final approach at ohare the crew discovered the nose gear would not extend. The fe made three attempts to crank down the gear all of which were unsucessful. After landing with nose gear up all…NTSB CHI85IA143Incident · No injuriesIncident investigationFinal reportFairchild F-27 · Champaign, ILDuring engine start a fuel line running between the fuel pump and the differential pressure switch ruptured and caused a small fire. The crew observed a fire warning light,aborted the start procedure and activated the fire extingui shing system which put the…NTSB CHI83IA418Incident · No injuriesIncident investigationFinal reportBoeing 727-200 · Chicago, ILThe acft experienced a left walking beam failure when the landing gear was extended during approach, the acft log was noted 'during gear extension at 230 KTS tremendous bang occurred which dropped panels at rows 15-7 02 masks at row 18. Three green normal…NTSB CHI83LA062Accident · 1 fatalLimited investigationFinal reportScorpion Too · Sandwich, ILThe rotorcraft impacted the runway very hard with no flare after the engine quit 100-200 feet AGL. The pilot had no training in this aircraft. No fuel was found in the fuel tank and no fuel odors were present. An examination of the fuelsystem, engine and…NTSB CHI83LA029Accident · No injuriesLimited investigationFinal reportFlagg 13 · Lansing, ILThe pilot stated he took off to the west and just after becoming airborne the engine lost power. The aircraft landed in a bean field. Examination of the fuel system revealed that the inlet fuel line to the fuel pump had rotted and large pieces of the interior…NTSB CHI80FEV31Accident · No injuriesClosedGrumman 164B · Maroa, ILNTSB CHI77DEE55Accident · No injuriesClosedBrantly 305 · Wheeling, ILNTSB CHI76FEE69Accident · No injuriesClosedSportster HA-2M · Rockford, ILNTSB CHI70F0344Accident · Minor injuriesClosedGlobe GC-1B · Wheeling, ILNTSB UNK65X1089Accident · No injuriesClosedBeechraft D95 · Groveland, IL