NTSB investigations: Amateur-built UNKNOWN ENG
2,048 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, newest first
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.\"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."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 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.NTSB MIA96LA028Accident · No injuriesLimited investigationFinal reportBell 47-D1 · Jasper, FLImproper maintenance and inspection of the carburetor system by maintenance personnel during the last annual inspection which resulted in a partial loss of engine power due to carburetor ice. Contributing to the accident were: the pilot's failure to perform…NTSB SEA96LA048Accident · No injuriesLimited investigationFinal reportPiper PA-28-161 · Salt Lake City, UTa carburetor fire.NTSB NYC96LA021Accident · Minor injuriesLimited investigationFinal reportBischoff VAN RV-6 · Monticello, NYthe pilot's improper inflight decision to continue flight without sufficient fuel, which resulted in a loss of power due to fuel exhaustion.NTSB CHI96LA012Accident · Minor injuriesLimited investigationFinal reportPiper PA-24-260 · Wakeeney, KSFailure of the pilot to maintain sufficient altitude and airspeed on final approach to reach the proper touchdown point for landing. A factor relating to the accident was: the pilot's selection of the wrong runway for landing.NTSB CHI96LA010Accident · No injuriesLimited investigationFinal reportCrowley/Zenair Zodiac CH-600 · Columbia, MOA loss of elevator control as a result of the top elevator control cable working its way out of a fitting.NTSB ATL96LA004Accident · 1 fatalLimited investigationFinal reportLopez Lancair 360 · Atlanta, GAthe noninstrument-rated pilot's intentional VFR flight into instrument meteorological conditions which led to a loss of control.NTSB MIA95LA241Accident · Minor injuriesLimited investigationFinal reportBeech D50E · Okeechobee, FLThe pilot's decision to conduct a feathering check of the right propeller at an altitude inadequate for a safe engine restart or refeathering of the propeller.NTSB FTW95LA405Accident · Minor injuriesLimited investigationFinal reportLet Blanik L-13 · Como, COThe pilot allowing the glider to develop an excessive descent rate. A factor was the premature and automatic disengagement of the winch-tow system.NTSB LAX95LA309Accident · No injuriesLimited investigationFinal reportJosephson MC-15 Cricket · San Diego, CAthe failure of the left engine due to inadequate maintenance of the ignition system.NTSB FTW95LA358Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Taft, TXThe pilot's diverted attention, which resulted in his failure to assure that clearance was maintained from the transmission line.NTSB NYC95FA188Accident · 1 fatalField investigationFinal reportBeech 58 · Mapleton, METhe pilot inadvertently shut down the right engine and feathered the propeller after a loss of power in the left engine, and he failed to maintain adequate airspeed, which resulted in an inadvertent stall/spin and collision with the ground. A factor relating…NTSB MIA95IA194Incident · No injuriesIncident investigationFinal reportBoeing 737-3B7 · Charlotte, NCImproper installation of the 'a' system flight control computer by company maintenance personnel, which resulted in pin connector(s) being pushed loose and subsequent malfunction of the autopilot.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 FTW95LA317Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Mccrory, ARThe loss of engine power due to a cracked cylinder. A factor was the lack of suitable terrain for the forced landing.NTSB LAX95LA260Accident · Minor injuriesLimited investigationFinal reportStinson L-5E · Elko, NVthe failure of the student pilot to maintain directional control and the inadequate supervision by the instructor pilot in taking timely corrective action.NTSB LAX95LA244Accident · No injuriesLimited investigationFinal reportPiper PA-38-112 · Rubidoux, CAthe pilot's inadequate preflight planning/preparation in that he attempted to fly an aircraft without first verifying the aircraft's gross weight and published performance capabilities.NTSB MIA95LA176Accident · No injuriesLimited investigationFinal reportKashpureff Nieuport II · Venice, FLThe pilot-in-command's inability to maintain airspeed after encountering a sudden wind shift after lift off resulting in an inadvertent stall, uncontrolled descent, and ground collision.NTSB CHI95LA202Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Blue Rapids, KSthe leaking drain in the main fuel sump. Factors to the accident were the incorrect fuel indication, the ravine, fuel exhaustion, and the low rotor RPM.NTSB ATL95LA116Accident · 1 fatalLimited investigationFinal reportSmith Monnett Moni · Cheraw, SCThe loss of engine power for unknown reasons, and the pilot's failure to maintain flying speed, which resulted in impact with the ground while the airplane was in a stalled condition.NTSB LAX95LA239Accident · No injuriesLimited investigationFinal reportCessna 182A · Paso Robles, CAFailure of the great lakes pilot to see-and-avoid the Cessna 182. The sun glare was a related factor.NTSB FTW95LA244Accident · 1 fatalLimited investigationFinal reportWalter W. Bell Lazer Edge · El Reno, OKThe pilot's failure to maintain control resulting in an inadvertent stall/spin. Factors were the pilot's performance of aerobatic maneuvers at the low altitude.NTSB LAX95LA197Accident · No injuriesLimited investigationFinal reportBölkow Phoebus C · Helendale, CAthe pilot's selection of a downwind landing and his failure to attain the proper touchdown point. Factors in the accident were the inaccurate wind information provided by his ground crew which led the pilot to select the improper landing direction, and, the…NTSB BFO95LA052Accident · Serious injuriesLimited investigationFinal reportCurtiss-Wright P-40E · Phelps, NYLoss of engine power for undetermined reasons. A factor related to the accident was the lack of suitable terrain for the forced landing.NTSB NYC95DEI01Accident · 1 fatalFinal reportStaudacher S-600 · Wellington, OHloss of engine power for undetermined reason(s), and failure of the pilot to maintain adequate airspeed, while maneuvering, which resulted in a stall and collision with the ground.NTSB CHI95LA141Accident · Minor injuriesLimited investigationFinal reportSorrel SNS-4 · Menomonee Falls, WIthe pilot's failure to maintain clearance with transmission wires. A factor in the accident was the transmission wires.NTSB MIA95LA116Accident · 1 fatalLimited investigationFinal reportKorzep Bumble BEE 500 · Titusville, FLThe failure of the pilot to maintain rotor RPM, resulting in the subsequent in flight loss of control. The pilot's lack of qualification was a factor.NTSB CHI95LA117Accident · No injuriesLimited investigationFinal reportLewis KR-2 · Ogallala, NEthe owner/builder's improper maintenance (installation). Factors were the carburetor reversed and the mixture control cable not secured.NTSB LAX95FA144Accident · 1 fatalField investigationFinal reportCessna 310Q · Kahului, Maui, HIthe pilot's failure to maintain an adequate terrain clearance altitude while flying in a mountainous area at night.NTSB ATL95LA053Accident · No injuriesLimited investigationFinal reportSchweizer 269B · Addison, ALThe pilot's improper use of the throttle control during a descent which resulted in a hard landing.NTSB FTW95FA101Accident · 1 fatalField investigationFinal reportBeech A36 · Wallisville, TXFuel starvation due to improper positioning of the fuel tank selector, which resulted in loss of engine power. Factors related to the accident were: darkness and a lack of suitable terrain for the forced landing.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.