NTSB investigations: Amateur-built UNKNOWN ENG
2,047 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 WPR14FA369Accident · 1 fatalField investigationFinal reportBackovich George C G P 5 · Reno, NVThe failure of the right wing under normal race loads due to an improper repair of the right wing spar that reduced its structural strength following a previous landing accident.NTSB ERA14FA421Accident · 1 fatalField investigationFinal reportKlaas Development Lancair IV P · Ooltewah, TNThe inadequate torque of the propeller mounting bolts and inspection of the propeller, which resulted in the fatigue fracture of the bolts and a subsequent in-flight separation of the propeller assembly.NTSB ERA14LA418Accident · Serious injuriesLimited investigationFinal reportLorenz Stephen Kitfox Series 5 · Greene, NYThe pilot’s failure to attain adequate airspeed during the initial climb, which resulted in an exceedance of the wing’s critical angle-of-attack and a subsequent aerodynamic stall. Contributing to the accident was the pilot’s lack of experience in the…NTSB WPR14LA340Accident · No injuriesLimited investigationFinal reportHughes 269C · Darrington, WAMaintenance personnel’s failure to secure the throttle mount bracket during a recent engine installation, which resulted in the loss of throttle movement and an inability to control engine power.NTSB CEN14FA400Accident · 1 fatalField investigationFinal reportLarry Ketterling FEW P-51 Mustang · Lisbon, NDThe partial loss of engine power for a reason that could not be determined because of extensive impact and postcrash fire damage, and the pilot's failure to maintain adequate airspeed, which resulted in the airplane's wing exceeding its critical…NTSB WPR14LA312Accident · Minor injuriesLimited investigationFinal reportRoscher Frederick Thunder Mustang · Spanish Springs, NVA complete loss of engine power during climb for reasons that could not be determined due to the severity of postcrash fire damage to the airplane.NTSB ERA14LA358Accident · Serious injuriesLimited investigationFinal reportWinder Robert S VP1 · Grove City, PAA collision with terrain during the landing approach for reasons that could not be determined based on available information.NTSB ERA14LA351Accident · Serious injuriesLimited investigationFinal reportSiler Ronald E Ultrastar · Halifax, PAA total loss of engine power for reasons that could not be determined because the engine was not recovered. Contributing to the accident was the pilot's failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack during…NTSB ERA14CA353Accident · No injuriesData collectionFinal reportJannakos Gregory P Zodiac 601 HDS · Lawrenceville, GAThe pilot's inadequate flare, which resulted in a hard landing.NTSB CEN14CA386Accident · No injuriesData collectionFinal reportBlack Christopher Sparrow Sport Spec · Moriarty, NMThe pilot's loss of directional control while landing in gusty crosswind conditions. Contributing to the accident was the pilot's operation of the engine above its normal temperature limit on takeoff.NTSB CEN14CA382Accident · Serious injuriesData collectionFinal reportGremminger Greg Magni M 16 · Cape Girardeau, MOThe pilot's failure to maintain sufficient altitude while maneuvering which led to a collision with power lines.NTSB WPR14CA294Accident · Minor injuriesData collectionFinal reportThrush S2RHG T65 · Parma, IDThe pilot's decision to take off with a tailwind, which resulted in the airplane not attaining sufficient airspeed for takeoff.NTSB WPR14CA292Accident · Serious injuriesData collectionFinal reportJonker Sailplanes JS1-C · Truckee, CAThe pilot's failure to maintain aircraft control in gusting wind conditions while on final approach to the runway.NTSB CEN14CA380Accident · No injuriesData collectionFinal reportDantonio 404 · Wichita Falls, TXThe separation of a spark plug wire resulting in a loss of engine power during climb out and a subsequent forced landing on a field containing trees.NTSB CEN14LA372Accident · 1 fatalLimited investigationFinal reportJonker Sailplanes JS1-C · Wallis, TXThe pilot’s loss of glider control and its subsequent impact with terrain for reasons that could not be determined due to a lack of available information.NTSB ERA14CA349Accident · No injuriesData collectionFinal reportPekola James W Ridge Runner III · Andrews, NCThe pilot's failure to open the fuel tank valves during the preflight examination of the airplane, which resulted in a total loss of engine power due to fuel starvation.NTSB ERA14LA309Accident · Minor injuriesLimited investigationFinal reportSimmons William E Aventura 2 · Rockledge, FLThe pilot’s failure to maintain airspeed during a forced landing following a loss of engine power, which resulted in a hard landing. Contributing to the accident was the pilot’s inadequate inspection of the engine, which resulted in a loose ground wire lug on…NTSB WPR14LA242Accident · No injuriesLimited investigationFinal reportAdams Dragonfly · Mesa, AZA partial loss of engine power due to a reduction in the No. 3 cylinder’s compression as a result of the exhaust valve not having consistent uniform contact with the cylinder head valve seat.NTSB WPR14LA237Accident · No injuriesLimited investigationFinal reportCraig W Sherman Super Glasair TT · Madera, CAThe loosening of a B-nut in the fuel system which resulted in a rapid, undetected fuel leak and subsequent fuel exhaustion.NTSB WPR14LA225Accident · No injuriesLimited investigationFinal reportEmery Mark Rotorway 162F · Merced, CAThe helicopter pilot/owner's decision to install a belt type not recommended by the kit manufacturer in the tail rotor drive system using the incorrect tension values, which led to the belt’s in-flight failure and the subsequent loss of tail rotor drive…NTSB WPR14LA222Accident · 1 fatalLimited investigationFinal reportPhillips BD 4 · Dayton, NVThe pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack during the turn onto the final base leg in gusting wind conditions, which resulted in a stall/spin at too low an altitude to allow recovery.NTSB CEN14LA244Accident · Minor injuriesLimited investigationFinal reportCrawford Preceptor Ultra PUP · Mabel, MNThe loss of engine power as a result of carburetor icing.NTSB CEN14LA243Accident · 1 fatalLimited investigationFinal reportHoffius Stowe Challenger II · Attica, INThe pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack while maneuvering at low altitude, which led to an aerodynamic stall and loss of control. Contributing to the accident was the installation of an…NTSB CEN14LA213Accident · Serious injuriesLimited investigationFinal reportCrow Mustang II · Morton, TXThe pilot's improper landing flare after encountering a gusting crosswind and his inadequate recovery from the subsequent bounced landing.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 ERA14CA189Accident · No injuriesData collectionFinal reportMoore Thomas O Zenith Stol CH701 · Frostproof, FLThe pilot's failure to maintain directional control during a precautionary landing. Contributing to the accident was the pilot's delayed decision to divert due to deteriorating weather.NTSB WPR14LA133Accident · No injuriesLimited investigationFinal reportPeter W Stevens Bearhawk Patrol · Salt Lake City, UTThe pilot’s failure to maintain directional control during the landing roll.NTSB CEN14CA156Accident · No injuriesData collectionFinal reportOlson Kenneth H T Zodiac 601 HDS · Garrison, MNThe pilot's failure to maintain directional control during takeoff which resulted in the airplane striking a snow bank.NTSB ERA14LA130Accident · Serious injuriesLimited investigationFinal reportVictor M Cordero RV-9A · Apopka, FLThe failure of the propeller spline shaft, the drive disk adapter, and the propeller speed reduction unit (PSRU) input spline due to a lack of inspection and lubrication, which resulted in a total loss of propeller drive and a subsequent forced landing.…NTSB ERA14MA060Accident · 2 fatalMajor investigationFinal reportFairchild SA227-AC · La Alianza, PRThe flight crew's excessive elevator input during a rapid descent under night lighting conditions, which resulted in the overstress and breakup of the airplane. Contributing to the accident was an initial loss of airplane control for reasons that could not be…NTSB CEN14LA056Accident · 1 fatalLimited investigationFinal reportPearson Jon M Dragonfly · Anahuac, TXThe incorrect installation by the pilot, who was not a certificated mechanic or repairman, of the main rotor head bearing block, which resulted in the in-flight separation of the rotor head.NTSB CEN14FA046Accident · 1 fatalField investigationFinal reportMitsubishi MU 2B-25 · Owasso, OKThe pilot's loss of airplane control during a known one-engine-inoperative condition. The reasons for the loss of control and engine shutdown could not be determined because the airplane was not equipped with a crash-resistant recorder and postaccident…NTSB WPR14LA040Accident · Serious injuriesLimited investigationFinal reportMikoyan Gurevich MIG 21 UM · Reno, NVThe loss of brake control due to the fracture of the front brake pawl engagement spring, which resulted in a runway overrun.NTSB WPR14CA039Accident · No injuriesData collectionFinal reportYuneec Yuneec · Upland, CAThe pilot's improper flare, which resulted in a loss of aircraft control and hard landing.NTSB ERA14LA034Accident · Minor injuriesLimited investigationFinal reportTeal Harry H Sonerai II Stretch · De Leon Springs, FLA total loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine revealed no evidence of preexisting mechanical anomalies or failures that would have precluded normal operation.NTSB ERA14CA017Accident · Serious injuriesData collectionFinal reportBeech A36 · Burnsville, NCThe pilot's failure to achieve a proper touchdown point during landing, which resulted in a runway excursion.NTSB WPR14CA022Accident · No injuriesData collectionFinal reportCollins Zenith Stol CH 701 · Deer Park, WAThe pilot's inadequate flare and failure to maintain control of the airplane during the landing with a tailwind.NTSB CEN14LA021Accident · No injuriesLimited investigationFinal reportPohoski RV 4 · New Waverly, TXAn in-flight fire for reasons that could not be determined because the wreckage was consumed by fire.NTSB ERA14LA018Accident · No injuriesLimited investigationFinal reportFuller Van L Sonex · Palatine, NYA total loss of engine power for reasons that could not be determined because a test run and partial teardown of the engine did not reveal any anomalies.NTSB CEN14LA003Accident · Serious injuriesLimited investigationFinal reportKenneth M Franz Ultra PUP · Belleville, TXThe pilot’s failure to maintain adequate airspeed and his exceedance of the airplane's critical angle-of-attack while turning back to the airport instead of landing straight ahead following a partial loss of engine power, which resulted in an aerodynamic…NTSB ANC14CA001Accident · No injuriesData collectionFinal reportPiper PA 18-150 · Iliamna, AKThe pilot's failure to maintain aircraft control during the landing roll with a tailwind.NTSB WPR14CA006Accident · Minor injuriesData collectionFinal reportSiemens Rotorway Exec 162F · Nampa, IDA flight control malfunction during cruise flight for reasons that could not be determined. No follow-up examination was conducted due to a lapse in agency funding and subsequent government shutdown.NTSB WPR13FA405Accident · 2 fatalField investigationFinal reportKamtz RV-7A · Jackson Hole, WYA loss of engine power for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or failures that would have precluded normal operation. Also causal was the pilot’s failure to adequately compensate for the…NTSB WPR13FA393Accident · 1 fatalField investigationFinal reportStuart Vortex · Scappoose, ORThe student pilot's unintentional takeoff followed by his failure to maintain control of the gyroplane during the landing approach. Contributing to the accident was the student pilot’s lack of both flight training and flight experience and his lack of a solo…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 CEN13LA502Accident · Minor injuriesLimited investigationFinal reportAnderas Tiger Moth R80 · New Franken, WIThe loss of engine power during initial climb for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.NTSB CEN13LA488Accident · No injuriesLimited investigationFinal reportGriffith E/Boyd W E Lancair 360 · Nucla, COThe pilot’s failure to extend the airplane’s landing gear before landing.NTSB CEN13LA484Accident · No injuriesLimited investigationFinal reportRockwell International S-2R · Larchwood, IAA complete loss of engine power during an agricultural application flight for reasons that could not be determined because postaccident examinations did not reveal any anomalies that would have precluded normal operation.NTSB CEN13LA478Accident · No injuriesLimited investigationFinal reportDouglas Brian G BA-100 · Killeen, TXThe pilot’s improper management of the fuel mixture, which resulted in an over-rich fuel mixture condition and a subsequent partial loss of engine power.NTSB WPR13LA360Accident · No injuriesLimited investigationFinal reportVersteeg Helicycle · Richland, WAThe pilot’s failure to maintain helicycle control during hover due to an inadvertent control input.