NTSB investigations: Amateur-built UNKNOWN ENG, GA
61 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 |
|---|---|
| 1973 | 1 |
| 1978 | 2 |
| 1980 | 1 |
| 1984 | 2 |
| 1985 | 2 |
| 1986 | 1 |
| 1989 | 2 |
| 1990 | 1 |
| 1991 | 1 |
| 1992 | 1 |
| 1994 | 1 |
| 1995 | 1 |
| 1997 | 1 |
| 1998 | 1 |
| 2002 | 2 |
| 2003 | 5 |
| 2004 | 1 |
| 2005 | 2 |
| 2007 | 1 |
| 2008 | 2 |
| 2009 | 3 |
| 2010 | 2 |
| 2011 | 3 |
| 2012 | 1 |
| 2013 | 1 |
| 2014 | 2 |
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 1 |
| 2019 | 2 |
| 2021 | 3 |
| 2024 | 4 |
| 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\" = 'GA' 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" = 'GA' 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 ERA26LA055Accident · No injuriesClass 3 · LimitedPreliminary reportPerry William Lancair IV P · Savannah, GAOn November 13, 2025, at 1949 eastern standard time, an experimental amateur-built Lancair IV-P, N163BR, was substantially damaged when it was involved in an accident near Savannah, Georgia. The pilot and passenger were uninjured. The airplane was operated as…NTSB ERA25LA064Accident · Serious injuriesClass 3 · LimitedFinal reportAMS Flight D O O Carat A · Centralhatchee, GAMaintenance personnel’s failure to comply with the engine manufacturer’s guidance, which resulted in improper valvetrain clearances, unseating of the intake valve keepers, and a total loss of engine power.NTSB ERA24LA298Accident · No injuriesClass 4 · LimitedFinal reportGlobe GC1B · Peachtree City, GAA right main landing gear collapse during landing.NTSB ERA24LA258Accident · Serious injuriesClass 3 · LimitedFinal reportClapp Saberwing · Valdosta, GAThe total loss of engine power due to the shearing of the woodruff key that indexed the crankshaft gear and hub assembly to the crankshaft, which resulted in the gear and hub rotating from their indexed position and caused the crankshaft-to-camshaft timing to…NTSB ERA24LA099Accident · No injuriesClass 3 · LimitedFinal reportSwissdrones Operating SDO 50 V2 · Antioch, GAA partial loss of engine power due to a reduction of fuel flow for undetermined reasons. Contributing to the accident was the UAS manufacturer’s lack of instructions for a partial loss of engine power landing.NTSB ERA21LA332Accident · No injuriesClass 4 · LimitedFinal reportRotorway Exec 162 · Lindale, GAThe pilot's improper judgment of the helicopter’s height above ground during the landing flare, which resulted in a hard landing with forward airspeed and subsequent bounce and rollover.NTSB ERA21LA236Accident · Minor injuriesClass 4 · LimitedFinal reportMaxson Phil Zodiac CH601XL · Winder, GAPilot’s inadequate supervision of the pilot rated passenger’s actions, which led to a high descent rate and collision with obstacles.NTSB ERA21LA167Accident · No injuriesClass 4 · LimitedFinal reportAyres S2R-G6 · Vienna, GAThe pilot’s improper decision to attempt a takeoff with a quartering tailwind and his failure to reject the takeoff in a timely manner, which resulted in a runway excursion.NTSB ERA20LA045Accident · Minor injuriesClass 3 · LimitedFinal reportYakovlev YAK 52 · Wrightsville, GAA total loss of engine power due to the failure of the No. 5 cylinder exhaust valve, which resulted in an forced off-airport landing.NTSB ERA20FA029Accident · 1 fatalClass 3 · FieldFinal reportPavel Tango2 · Cedartown, GAThe pilot's loss of control of the gyroplane for reasons that could not be determined based on available evidence.NTSB GAA18CA011Accident · No injuriesData collectionFinal reportDehavilland DHC 1 · Cedartown, GAThe pilot’s failure to maintain directional control during the landing roll.NTSB ERA17FA050Accident · 2 fatalField investigationFinal reportCurtiss JN4 · Williamson, GAThe in-flight failure of the propeller due to excessive engine vibration loads and the use of an incorrectly-sized propeller, which resulted in a fatigue crack of the leading edge strip. Contributing to the accident was the inadequate repair of the propeller…NTSB ERA17FA027Accident · 1 fatalField investigationFinal reportNanchang CJ6 · Blackshear, GAThe Bama 3 pilot's failure to properly conduct an overshoot maneuver and his premature climb before he was clear of the lead airplane, Bama 1, which lead to a midair collisionNTSB ERA16LA151Accident · Serious injuriesLimited investigationFinal reportGranger Michael D Sonex · Jesup, GAThe pilot's improper fuel management, which resulted in fuel exhaustion and a total loss of engine power.NTSB ERA16FA097Accident · 3 fatalField investigationFinal reportBrook Aaron D Lancair IV P · Albany, GAThe pilots' failure to maintain control during a takeoff attempt in a high-performance airplane. Contributing to the accident were the pilots' decision to operate the airplane above its maximum gross weight and with an aft center of gravity and their lack of…NTSB ERA15LA205Accident · Minor injuriesLimited investigationFinal reportJerome D Fischer RV-7 · Bartow, GAThe pilot's use of the improper fuel grade for the engine, which resulted in detonation, engine damage, and loss of engine power.NTSB ERA15LA197Accident · Serious injuriesLimited investigationFinal reportJames Kilroy Pitts Model 12 · LaGrange, GAA partial loss of engine power after takeoff for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.NTSB ERA15LA075Accident · 1 fatalLimited investigationFinal reportJohnson David Earl Renegade Spirit · Brunswick, GAThe pilot's decision to fly the airplane with known engine deficiencies and his subsequent exceedance of the airplane's critical angle of attack following a loss of engine power, which resulted in an aerodynamic stall and loss of control after takeoff.NTSB ERA14CA353Accident · No injuriesData collectionFinal reportJannakos Gregory P Zodiac 601 HDS · Lawrenceville, GAThe pilot's inadequate flare, which resulted in a hard landing.NTSB ERA13LA126Accident · No injuriesLimited investigationFinal reportMccowan Steve A Shttd · Montrose, GAA total loss of engine power during cruise flight due to the separation of the No. 2 piston connecting rod.NTSB ERA13CA098Accident · Minor injuriesData collectionFinal reportMckay Gene RV-9A · Brunswick, GAThe pilot’s failure to maintain airplane control while landing in gusting wind conditions.NTSB ERA11FA374Accident · 1 fatalField investigationFinal reportBinkley Richard Sonex · Calhoun, GAThe total loss of engine power for reasons that could not be determined because postimpact fire damage precluded a thorough examination of the engine.NTSB ERA11CA311Accident · No injuriesData collectionFinal reportSouthern Airmotive SAC · Taccoa, GAThe pilot's inadequate compensation for crosswind conditions during landing, resulting in a runway excursion and collision with a hangar.NTSB ERA11LA213Accident · Minor injuriesLimited investigationFinal reportHolst Lawrence E VP-1 · Calhoun, GAA partial loss of engine power during initial climb due to an over-lean carburetor setting. Contributing to the accident was the pilot's improper adjustment of the engine's carburetor during construction.NTSB ERA11LA011Accident · No injuriesLimited investigationFinal reportGrumman G164 · Edison, GALeakage of hydraulic fluid from the internal fuselage line fitting, resulting in a subsequent loss of the right brake’s effectiveness.NTSB ERA10CA476Accident · No injuriesData collectionFinal reportGoodman Robert Bruce RV-4 · Gainesville, GAThe pilot's failure to see and avoid marked power lines during low-level flight over a lake.NTSB ERA09CA432Accident · Minor injuriesData collectionFinal reportBingham Chuck Rotorway 1 · Atlanta, GAThe pilot's failure to maintain control of the helicopter while hovering in gusting wind conditions.NTSB ERA09LA412Accident · 1 fatalLimited investigationFinal reportJames O'Bert Vari-Eze · Columbus, GAThe pilots improper fuel management, which resulted in a loss of engine power due to fuel starvation.NTSB ERA09LA231Accident · 1 fatalLimited investigationFinal reportHoward William C KR-2 · Valdosta, GAAn in-flight fire for undetermined reasons.NTSB NYC08LA273Accident · No injuriesLimited investigationFinal reportOuzts Rodney Rutan-LongEZ · Winder, GAThe failure of the left brake due to contamination of the brake fluid.NTSB MIA08LA096Accident · 1 fatalLimited investigationFinal reportGarrett Gerald P Cozy Mark IV · Jekyll Island, GAControlled flight into water for undetermined reasons.NTSB ATL07CA043Accident · No injuriesData collectionFinal reportBurkhart-Grob G109 · Monticello, GAThe pilot's improper recovery from a bounced landing, which resulted in a loss of control, an in-flight collision with a hangar, and subsequent in-flight collision with the runway.NTSB ATL05LA121Accident · 1 fatalLimited investigationFinal reportDenmark Mini-Max · Covington, GAThe pilot's failure to maintain airspeed, which resulted in an inadvertent stall, uncontrolled descent, and subsequent collision with the ground.NTSB ATL05LA084Accident · Minor injuriesLimited investigationFinal reportde Havilland DH-82-C · Franklin, GAThe total failure of the left magneto resulting in a partial loss of engine power on initial takeoff climb, forced landing, and in-flight collision with wires and the ground.NTSB ATL05LA005Accident · Serious injuriesLimited investigationFinal reportMoody Easy Riser · Augusta, GAThe pilot's failure to maintain airspeed which resulted in an inadvertent stall/spin, and subsequent collision with the ground.NTSB ATL04LA019Accident · No injuriesLimited investigationFinal reportSpegele Mustang II · Calhoun, GAThe pilot's improper flare which resulted in a hard landing and subsequent landing gear collapse.NTSB ATL04LA001Accident · 1 fatalLimited investigationFinal reportJohnson Walter A Hornet · Saint Marys, GAThe loss of engine power due to improper maintenance and the pilot's failure to maintian airspeed during the attempted forced landing that resulted in a stall.NTSB ATL03LA141Accident · No injuriesLimited investigationFinal reportBellanca CH-300 · Peachtree City, GAThe pilots failure to maintain directional control during landing roll that resulted in a ground loop and subsequent collapse of the main landing gear.NTSB ATL03LA106Accident · No injuriesLimited investigationFinal reportPolstra Zodiac CH 601 HDS · Thomson, GAThe total loss of engine power due to the fatigue fracture of the No. 3 cylinder intake valve, which resulted in a forced landing to rough terrain and subsequent collision with small trees and a tree stump.NTSB ATL03CA105Accident · Minor injuriesData collectionFinal reportAyers RV-6A · St. Simons Isld, GAThe pilot's inadequate preflight inspection that resulted in his failure to remove the seatbelt (flight control gust lock) from the right side flight control stick.NTSB ATL03FA009Accident · 2 fatalField investigationFinal reportBeechcraft A60 · Jesup, GAThe loss of power in one engine and the loss of control for undetermined reasons.NTSB ATL02LA142Accident · No injuriesLimited investigationFinal reportBeech BE-76 · Atlanta, GAThe pilot's improper flare which resulted in a hard landing.NTSB MIA98LA230Accident · No injuriesLimited investigationFinal reportBell 47D1 · Dawson, GAThe pilot's selection of unsuitable terrain for landing resulting in debris being blown up during landing resulting in damage to the tail rotor and loss of control.NTSB ATL97IA035Incident · No injuriesIncident investigationFinal reportBoeing 757-232 · Atlanta, GAfailure of the Stage 1 High Pressure Turbine due to a fatigue fracture in a disk blade retention lug.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 ATL94LA117Accident · Serious injuriesLimited investigationFinal reportCessna 140 · Bainbridge, GAThe loss of engine power for undetermined reasons.NTSB ATL92LA086Accident · 1 fatalLimited investigationFinal reportGlaser-Dirks DG-600/18M · Newnan, GAThe loss of engine power for undetermined reasons, and the pilot's failure to maintain airspeed, which resulted in an inadvertent stall at too low of an altitude to effect recovery.NTSB ATL91LA076Accident · No injuriesLimited investigationFinal reportDavid Lowe ULTRA-PUP · Waycross, GAThe failure of the airplane battery, which prohibited the complete extension of the landing gear, resulting in a landing with the nose gear retracted. A factor in the accident was the soft terrain at the selected landing area.NTSB ATL90FA070Accident · 2 fatalField investigationFinal reportBeech 58 · Demorest, GAThe pilot's failure to maintain control of the airplane while in instrument meteorological conditions. Contributing factors were: the pilot's overconfidence, lack of recent flight experience, and the weather conditions.NTSB ATL89LA212Accident · No injuriesLimited investigationFinal reportSikorsky H-34J · Louisville, GAAn undetermined malfunction of the main rotor drive system.