# NTSB investigations: Amateur-built UNKNOWN ENG: Loss of engine power (total) NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports. Page 1 of 3 · 113 cases ## Latest cases - [NTSB WPR26LA331](https://openairdocs.org/ntsb/WPR26LA331.md): Filip Richard/Fakowee Avia Indus Thrp T211 SP E · Benson, AZ · Accident · Serious injuries · Class 4 · Limited · Investigation open · Sep 6, 2026 · N211RJ · Substantial damage - [NTSB ERA26LA303](https://openairdocs.org/ntsb/ERA26LA303.md): Mcfarland Larry C Zenith 601 HDS · Ripley Landing, WV · Accident · Serious injuries · Class 3 · Limited · Preliminary report · Aug 15, 2026 · N601EZ · Substantial damage > On August 15, 2026, about 1300 eastern daylight time, an experimental, amateur-built Zenith 601 HDS airplane, N601EZ, was substantially damaged when it was involved in an accident near Ripley Landing, West Virginia. The private pilot was seriously injured.… - [NTSB ERA26LA231](https://openairdocs.org/ntsb/ERA26LA231.md): Olson/Williams Sonex · Jaffrey, NH · Accident · Serious injuries · Class 3 · Limited · Preliminary report · Jun 5, 2026 · N28YD · Substantial damage > On June 5, 2026, at 1100 eastern daylight time, an experimental amateur-built Sonex airplane, N28YD, was substantially damaged when it was involved in an accident near Jaffrey, New Hampshire. The private pilot was seriously injured. The flight was conducted… - [NTSB WPR26LA072](https://openairdocs.org/ntsb/WPR26LA072.md): Zenith 750 · Yacolt, WA · Accident · No injuries · Class 4 · Limited · Final report · Dec 23, 2025 · N186BG · Substantial damage > A loss of engine power for undetermined reasons. - [NTSB CEN26LA060](https://openairdocs.org/ntsb/CEN26LA060.md): Sonerai II · Cresson, TX · Accident · Serious injuries · Class 3 · Limited · Preliminary report · Dec 12, 2025 · N28MD · Substantial damage > On December 12, 2025, about 1431 central standard time, a Sonerai II airplane, registration N28MD, was substantially damaged when it was involved in an accident near Cresson, Texas. The pilot was seriously injured. The airplane was operated as a Title 14 Code… - [NTSB ERA26LA055](https://openairdocs.org/ntsb/ERA26LA055.md): Perry William Lancair IV P · Savannah, GA · Accident · No injuries · Class 3 · Limited · Preliminary report · Nov 14, 2025 · N163BR · Substantial damage > On 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 GAA25WA258](https://openairdocs.org/ntsb/GAA25WA258.md): Sukhoi SU31 · Lvivuk, Ukraine · Occurrence · No injuries · Class 4 · Foreign · Sep 5, 2025 · N131GT · No damage - [NTSB ANC25LA091](https://openairdocs.org/ntsb/ANC25LA091.md): Vu Holdings LLC/DBA Vanilla UN VA 001 · Ninilchik, AK · Accident · No injuries · Class 3 · Limited · Preliminary report · Aug 20, 2025 · N246VU · Substantial damage > On August 20, 2025, at about 0632 Alaska daylight time, a Platform Aerospace VA 001 Unmanned Aerial System (UAS), N246VU, was substantially damaged when it was involved in an accident on a beachside cliff near Ninilchik, Alaska. The aircraft was unmanned. The… - [NTSB WPR25LA244](https://openairdocs.org/ntsb/WPR25LA244.md): North American T-28C · West Wendover, NV · Accident · Serious injuries · Class 3 · Limited · Preliminary report · Aug 7, 2025 · N9748Y · Substantial damage > On August 07, 2025, at 1532 Pacific daylight time, a North American T-28C, N9748Y, was substantially damaged when it was involved in an accident near West Wendover, Utah. The pilot and the passenger were seriously injured. The airplane was operated as a Title… - [NTSB CEN25LA078](https://openairdocs.org/ntsb/CEN25LA078.md): Zenith Stol CH750 · Byron, IL · Accident · No injuries · Class 4 · Limited · Final report · Jan 15, 2025 · N749WJ · Substantial damage > The 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 WPR25LA064](https://openairdocs.org/ntsb/WPR25LA064.md): Amazon.Com Services MK30 · Pendleton, OR · Accident · No injuries · Class 4 · Limited · Final report · Dec 16, 2024 · N223PA · Substantial damage > The incorrect altitude indication by test software during landing. - [NTSB WPR25LA063](https://openairdocs.org/ntsb/WPR25LA063.md): Amazon.Com Services MK30 · Pendleton, OR · Accident · No injuries · Class 4 · Limited · Final report · Dec 16, 2024 · N209PA · Substantial damage > An improper altitude indication from a recent software update, which resulted in a loss of engine power in flight. - [NTSB ERA25LA064](https://openairdocs.org/ntsb/ERA25LA064.md): AMS Flight D O O Carat A · Centralhatchee, GA · Accident · Serious injuries · Class 3 · Limited · Final report · Nov 20, 2024 · N17GF · Substantial damage > Maintenance 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 ERA24LA258](https://openairdocs.org/ntsb/ERA24LA258.md): Clapp Saberwing · Valdosta, GA · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 11, 2024 · N120SW · Substantial damage > The 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 ERA24LA195](https://openairdocs.org/ntsb/ERA24LA195.md): Reddick Jonathan L Zodiac 601XLB · Dunbar, PA · Accident · No injuries · Class 4 · Limited · Final report · Apr 27, 2024 · N601DR · Destroyed > A total loss of engine power as a result of an improperly fabricated fuel-air mixture cable bracket. Contributing was the pilot’s decision to fly the airplane with a known mechanical engine issue, and the presence of another airplane that was back taxiing on… - [NTSB ERA24FA160](https://openairdocs.org/ntsb/ERA24FA160.md): Arthur B Canning Merlin Lite · Mulberry, FL · Accident · 1 fatal · Class 3 · Field · Final report · Apr 2, 2024 · N622PC · Substantial damage > The pilot/builder’s modifications of the motorglider’s engine, which resulted in an excessively lean fuel air mixture, preignition, piston failure, and a subsequent total loss of engine power during the initial climb. Contributing to the outcome was the… - [NTSB ERA24LA043](https://openairdocs.org/ntsb/ERA24LA043.md): Lancair IV · Perry, FL · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 17, 2023 · N37MB · Substantial damage > A rapid throttle advancement after a period of idling, which resulted in a flooded engine and total loss of engine power. - [NTSB CEN23FA410](https://openairdocs.org/ntsb/CEN23FA410.md): Sonex Sonex · Dowagiac, MI · Accident · 1 fatal · Class 3 · Field · Final report · Sep 10, 2023 · N569SX · Substantial damage > The total loss of engine power due to the failure of the ignition distributor rotor. - [NTSB ERA22LA270](https://openairdocs.org/ntsb/ERA22LA270.md): Burrill Steven E A Plane · Middleboro, MA · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 11, 2022 · N51324 · Substantial damage > A total loss of engine power for reasons that could not be determined. - [NTSB CEN22LA089](https://openairdocs.org/ntsb/CEN22LA089.md): Lancair IV · Iron Mountain, MI · Accident · Minor injuries · Class 3 · Limited · Final report · Dec 25, 2021 · N994PT · Substantial damage > The total loss of engine power after takeoff for undetermined reasons. - [NTSB WPR22LA019](https://openairdocs.org/ntsb/WPR22LA019.md): Lancair ES · Fall Creek, OR · Accident · No injuries · Class 3 · Limited · Final report · Oct 15, 2021 · N511ZZ · Substantial damage > Total loss of engine power due to fatigue failure of the camshaft gear. - [NTSB CEN21LA402](https://openairdocs.org/ntsb/CEN21LA402.md): Murphy Renegade II · Sheridan, IL · Accident · No injuries · Class 3 · Limited · Final report · Sep 5, 2021 · N490DJ · Substantial damage > A total loss of engine power during initial climb due to a piston seizure. - [NTSB CEN21LA309](https://openairdocs.org/ntsb/CEN21LA309.md): Titan T-51D · Ashtabula, OH · Accident · No injuries · Class 3 · Limited · Final report · Jul 6, 2021 · N15180 · Substantial damage > The tripped engine control computer circuit breaker caused by an excessive electrical load on the system, which resulted in a complete loss of engine power during the initial climb. - [NTSB CEN21LA092](https://openairdocs.org/ntsb/CEN21LA092.md): Sonex Tailwheel · Burleson, TX · Accident · 1 fatal · Class 3 · Limited · Final report · Dec 19, 2020 · N935EK · Substantial damage > A total loss of engine power due to engine seizure. Contributing to the accident was the pilot decision not to orbit the airport, as originally planned. - [NTSB ERA20LA324](https://openairdocs.org/ntsb/ERA20LA324.md): Vans RV 8 · Hilliard, FL · Accident · 1 fatal · Class 3 · Limited · Final report · Sep 21, 2020 · N800PB · Destroyed > A total loss of engine power due to oil starvation. - [NTSB CEN20LA360](https://openairdocs.org/ntsb/CEN20LA360.md): Cessna 180 · St Louis, MO · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 22, 2020 · N7620A · Substantial damage > A total loss of engine power due to improper maintenance of the mixture control cable and attachment hardware, which led to a forced landing into a congested area. - [NTSB WPR20LA040](https://openairdocs.org/ntsb/WPR20LA040.md): Vans RV 6 · Pima, AZ · Accident · Minor injuries · Class 3 · Limited · Final report · Dec 5, 2019 · N616RV · Substantial damage > A total loss of engine power for reasons that could not be determined based on the available evidence. - [NTSB ERA20LA045](https://openairdocs.org/ntsb/ERA20LA045.md): Yakovlev YAK 52 · Wrightsville, GA · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 30, 2019 · N52CY · Substantial damage > A 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 WPR20FA005](https://openairdocs.org/ntsb/WPR20FA005.md): Bede BD5 · Camarillo, CA · Accident · 1 fatal · Class 3 · Field · Final report · Oct 8, 2019 · N501BD · Substantial damage > The No. 4 connecting rod’s bearing shift and separation of the No. 4 connecting rod, which resulted in a total loss of engine power and subsequent forced landing. - [NTSB ERA19LA139](https://openairdocs.org/ntsb/ERA19LA139.md): Marlow Bearhawk · Sevierville, TN · Accident · No injuries · Class 3 · Limited · Final report · Mar 27, 2019 · N22GM · Substantial damage > Abnormal combustion in the No. 1 cylinder for reasons that could not be determined based on the available evidence, followed by the activation of the ignition system circuit breaker, which resulted in a total loss of engine power. - [NTSB WPR19FA091](https://openairdocs.org/ntsb/WPR19FA091.md): Bell UH1B · Forks, WA · Accident · 1 fatal · Class 2 · Field · Final report · Mar 8, 2019 · N64RA · Destroyed > A total loss of engine power due to the failure of the gas generator sealing disk as a result of the operator’s exceedance of the sealing disk life limits at too low an altitude for the pilot to accomplish a successful autorotation which resulted in the… - [NTSB WPR19LA029](https://openairdocs.org/ntsb/WPR19LA029.md): BKF Backcountry Supercub · Casper, WY · Accident · No injuries · Class 3 · Limited · Final report · Nov 19, 2018 · N59BK · Substantial damage > The seizure of two bearings in the reduction gearbox, resulting in the total loss of engine power. Contributing to the accident was a high descent rate which resulted in a hard landing. - [NTSB ERA19LA018](https://openairdocs.org/ntsb/ERA19LA018.md): Jabiru 250 · Daytona Beach Shores, FL · Accident · Minor injuries · Class 3 · Limited · Final report · Oct 16, 2018 · N207Y · Substantial damage > A total loss of engine power for reasons that could not be determined based on the available information. - [NTSB WPR18LA233](https://openairdocs.org/ntsb/WPR18LA233.md): Blue Oak CCK-1865 · Deadwood, CA · Accident · No injuries · Limited investigation · Final report · Aug 20, 2018 · N14CK · Substantial damage > A loss of engine power due to fuel exhaustion and the pilot's failure to ensure that the left-wing fuel cap was secure before flight. Contributing to the accident was the pilot's failure to monitor fuel levels while in flight. - [NTSB CEN18LA239](https://openairdocs.org/ntsb/CEN18LA239.md): Sibila MH-1 · Beach City, OH · Accident · Serious injuries · Limited investigation · Final report · Jun 25, 2018 · N32KS · Substantial damage > The total loss of engine power for reasons that could not be determined based on the available evidence. - [NTSB CEN18LA237](https://openairdocs.org/ntsb/CEN18LA237.md): Zenith Stol CH701 · Maple Lake, MN · Accident · No injuries · Limited investigation · Final report · Jun 22, 2018 · N736MM · Substantial damage > The total loss of engine power for reasons that could not be determined based on the available evidence. - [NTSB ERA18LA083](https://openairdocs.org/ntsb/ERA18LA083.md): Gregory Newman Sonex Trainer · Carrabelle, FL · Accident · 1 fatal · Limited investigation · Final report · Feb 5, 2018 · N543SX · Substantial damage > A loss of engine power for reasons that could not be determined because the airplane was not recovered. Also causal was the pilot's decision to conduct a low-altitude turn following the loss of engine power, which resulted in an exceedance of the airplane's… - [NTSB WPR18LA030](https://openairdocs.org/ntsb/WPR18LA030.md): Vanderark RV-10 · Sun Lakes, AZ · Accident · No injuries · Limited investigation · Final report · Nov 12, 2017 · N917VA · Substantial damage > The fatigue fractures of the upper and lower alternator attachment bolts, which decreased the common drive belt tension and resulted in the subsequent in-flight separation of an alternator drive belt, the overheating of the engine, and the subsequent total… - [NTSB ERA17LA340](https://openairdocs.org/ntsb/ERA17LA340.md): Waco UPF 7 · Ocklawaha, FL · Accident · Minor injuries · Limited investigation · Final report · Sep 28, 2017 · N29909 · Substantial damage > A failure of both magnetos due to multiple deficiencies, which resulted in a total loss of engine power. - [NTSB CEN17LA285](https://openairdocs.org/ntsb/CEN17LA285.md): Hillard Charlie R Hawker FB60 · Breckenridge, TX · Accident · Serious injuries · Limited investigation · Final report · Jul 25, 2017 · N254SF · Substantial damage > A total loss of engine power for reasons that could not be determined because postaccident engine examination and testing did not reveal any mechanical malfunctions or anomalies that would have precluded normal operation. - [NTSB WPR17LA153](https://openairdocs.org/ntsb/WPR17LA153.md): Clark James T Vans RV8 · Spokane, WA · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 14, 2017 · N559JC · Substantial damage > An inflight engine fire for reasons that could not be determined based on the available information, which melted the air filter element and obstructed the engine's air intakes, resulting in a total loss of engine power. - [NTSB CEN17LA228](https://openairdocs.org/ntsb/CEN17LA228.md): Thompson Angel Hawk II · Homer, LA · Accident · Serious injuries · Limited investigation · Final report · Jun 9, 2017 · N335JT · Substantial damage > A total loss of engine power due to the engine’s unresolved high operating temperatures, which resulted in failure of the distributor rotor and drive shaft, and the pilot’s failure to maintain airspeed during the subsequent forced landing, which resulted in… - [NTSB CEN17LA149](https://openairdocs.org/ntsb/CEN17LA149.md): Aero Adventure Aventura UL · Garden Ridge, TX · Accident · Serious injuries · Limited investigation · Final report · Apr 4, 2017 · N580TX · Substantial damage > The total loss of engine power for reasons that could not be determined based on the available evidence. - [NTSB CEN17LA117](https://openairdocs.org/ntsb/CEN17LA117.md): Jude Mike C Side Winder · Paynesville, MN · Accident · Serious injuries · Limited investigation · Final report · Mar 4, 2017 · N7524V · Substantial damage > The pilot’s inadequate preflight inspection, during which he failed to ensure that there was sufficient coolant in the engine reservoir, which resulted in the engine getting too hot and the engine control module shutting down the engine. - [NTSB CEN17LA092](https://openairdocs.org/ntsb/CEN17LA092.md): Zenith CH750 Stol · Jennings, LA · Accident · Minor injuries · Limited investigation · Final report · Jan 30, 2017 · N1972C · Substantial damage > A failure of the right fuel tank to supply fuel to the engine for reasons that could not be determined, which resulted in a total loss of engine power due to fuel starvation. - [NTSB ANC17LA008](https://openairdocs.org/ntsb/ANC17LA008.md): Airborne Extreme SQ-12 · Palmer, AK · Accident · No injuries · Limited investigation · Final report · Nov 25, 2016 · N37PX · Substantial damage > The fuel injector manufacturer's inappropriate guidance to use a 5-ampere circuit breaker in place of the required 10-ampere circuit breaker on the fuel injector circuit, which resulted in the circuit breaker opening, a loss of electrical power to the… - [NTSB WPR16LA149](https://openairdocs.org/ntsb/WPR16LA149.md): Swartz Gene Titan T 51 Mustang · Lancaster, CA · Accident · No injuries · Limited investigation · Final report · Jul 23, 2016 · N5103 · Substantial damage > A total loss of engine power due to the separation of a flywheel magnet, which impacted the attachment bracket for the primary and secondary ignition and disrupted the timing of the ignition system, rendering it inoperative. - [NTSB WPR16LA129](https://openairdocs.org/ntsb/WPR16LA129.md): Burkes BR-1 · Brigham City, UT · Accident · No injuries · Class 3 · Limited · Final report · Jun 22, 2016 · N677DB · Substantial damage > A loss of engine power as a result of a failure of the primary and backup ignition system. - [NTSB WPR16LA050](https://openairdocs.org/ntsb/WPR16LA050.md): Moore Onex · Fresno, CA · Accident · 1 fatal · Limited investigation · Final report · Jan 10, 2016 · N1950J · Substantial damage > The pilot/builder's failure to properly align the Force One Main Bearing, which resulted in a blockage of the oil transfer hole and culminated with a total engine power loss. Contributing to the accident was the pilot's failure to arrest the bank and sink… - [NTSB WPR16LA011](https://openairdocs.org/ntsb/WPR16LA011.md): Christopher Tom Kitfox 5 · Battle Ground, WA · Accident · No injuries · Limited investigation · Final report · Oct 14, 2015 · N533RC · Substantial damage > The total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no preimpact mechanical malfunctions or failures that would have precluded normal operation. Next page: https://openairdocs.org/ntsb-events/341/cases.md?engine=99999&page=2 ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '341')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb-events/341/cases?engine=99999 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.