# NTSB investigations: Amateur-built UNKNOWN ENG, CA 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 5 · 222 cases ## Latest cases - [NTSB WPR27FA012](https://openairdocs.org/ntsb/WPR27FA012.md): Gugger David RV-7A · Petaluma, CA · Accident · 2 fatal · Class 3 · Field · Investigation open · Oct 7, 2026 · N425DG - [NTSB WPR26LA293](https://openairdocs.org/ntsb/WPR26LA293.md): P Z L -Warszawa-Cnpsl PZL-104 Wilga 35A · Ukiah, CA · Accident · No injuries · Class 4 · Limited · Investigation open · Aug 7, 2026 · N113AS · Substantial damage - [NTSB WPR26LA213](https://openairdocs.org/ntsb/WPR26LA213.md): Moose SR 2500 · Sonoma, CA · Accident · Serious injuries · Class 4 · Limited · Final report · May 27, 2026 · N135DS · Substantial damage > The pilot's failure to maintain airspeed during a go-around in shifting wind conditions, which resulted in an exceedance of the airplane’s critical angle of attack and an aerodynamic stall. - [NTSB WPR26LA115](https://openairdocs.org/ntsb/WPR26LA115.md): Mightyfly MF-100 · Atwater, CA · Accident · No injuries · Class 4 · Limited · Final report · Mar 2, 2026 · N258MF · Destroyed > A control system anomaly, which resulted in the overload and failure of one of the propulsion motor systems during the transition from hover to forward flight. - [NTSB WPR26LA015](https://openairdocs.org/ntsb/WPR26LA015.md): Cessna 172S · Lathrop, CA · Accident · No injuries · Class 4 · Limited · Final report · Oct 4, 2025 · N103VK · Substantial damage > An inflight collision with a bird. - [NTSB DCA25LA174](https://openairdocs.org/ntsb/DCA25LA174.md): Pyka Pelican · Dixon, CA · Accident · No injuries · Class 4 · Limited · Final report · Mar 28, 2025 · N939NP · Substantial damage > The flight control system’s unanticipated transition to takeoff abort mode due to a software error in the autonomous flight control system, which resulted in a premature throttle reduction and hard landing. - [NTSB WPR25LA112](https://openairdocs.org/ntsb/WPR25LA112.md): Enstrom 280FX · Waterford, CA · Accident · Serious injuries · Class 4 · Limited · Final report · Mar 15, 2025 · N402TA · Destroyed > The pilot’s failure to maintain clearance from water while operating at a low altitude. - [NTSB WPR25LA083](https://openairdocs.org/ntsb/WPR25LA083.md): Charles E Spencer CCK-1865 · Vacaville, CA · Accident · No injuries · Class 4 · Limited · Final report · Jan 24, 2025 · N730CS · Substantial damage > The pilot’s failure to maintain directional control during the landing roll. - [NTSB WPR24FA309](https://openairdocs.org/ntsb/WPR24FA309.md): Nanchang China CJ-6A · Lancaster, CA · Accident · 1 fatal · Class 3 · Field · Final report · Sep 22, 2024 · N313YK · 2 aircraft · Substantial damage > The CJ-6A pilot’s failure to maintain separation and the Yak pilot’s failure to monitor the other airplane during a detachment, which resulted in a midair collision. - [NTSB WPR24LA317](https://openairdocs.org/ntsb/WPR24LA317.md): Yakovlev YAK-50 · Watsonville, CA · Accident · No injuries · Class 4 · Limited · Final report · Sep 20, 2024 · N613BM · 2 aircraft · Substantial damage > The Yak-50 pilot’s failure to maintain clearance from another airplane while taxiing and maneuvering. Contributing to the accident was the pilot’s inattention due to a distraction inside the cockpit. - [NTSB WPR23LA361](https://openairdocs.org/ntsb/WPR23LA361.md): Gleim James M MG-1 · Madera, CA · Accident · Minor injuries · Class 4 · Limited · Final report · Sep 28, 2023 · N126GM · Substantial damage > An emergency landing on uneven terrain that resulted in the loss of directional control during landing. - [NTSB WPR23LA352](https://openairdocs.org/ntsb/WPR23LA352.md): Wayne Toddun Sling 4 TSI · San Pedro, CA · Accident · Serious injuries · Class 3 · Limited · Final report · Sep 25, 2023 · N135WT · Substantial damage > A total loss of engine power due to a failure of the No. 4 cylinder exhaust valve from overheating and excessive wear. - [NTSB DCA23LA397](https://openairdocs.org/ntsb/DCA23LA397.md): Supernal SUP83-1 · California City, CA · Accident · No injuries · Class 4 · Limited · Final report · Aug 3, 2023 · N183TD · Substantial damage > A loss of control in flight due to a loss of electrical power to one of the lift-motors. - [NTSB WPR22FA332](https://openairdocs.org/ntsb/WPR22FA332.md): Beech 58 · Galt, CA · Accident · 2 fatal · Class 3 · Field · Final report · Sep 4, 2022 · N142DR · Substantial damage > The certified flight instructor's failure to maintain control of the airplane and inadequate supervision of the flight, which resulted in an aerodynamic stall/spin from which he could not recover. - [NTSB WPR22LA150](https://openairdocs.org/ntsb/WPR22LA150.md): Alexander Schleicher ASK 21 · Valyermo, CA · Accident · No injuries · Class 4 · Limited · Final report · Apr 8, 2022 · N212NM · Substantial damage > The gliders encounter with atmospheric conditions where the lift was not sufficient to maintain flight and subsequent impact with mountainous terrain. - [NTSB DCA22FA082](https://openairdocs.org/ntsb/DCA22FA082.md): Joby Aero JAS4-2 · Jolon, CA · Accident · No injuries · Class 3 · Field · Final report · Feb 16, 2022 · N542AJ · Substantial damage > The separation of a propeller blade during expansion flight testing that resulted in cascading effects to include the separation of multiple propulsion motor/propeller assemblies and the loss of remote pilot control of the aircraft. Contributing to the… - [NTSB WPR22FA048](https://openairdocs.org/ntsb/WPR22FA048.md): Zenith Zodiac CH601XL · Temecula, CA · Accident · 1 fatal · Class 3 · Field · Final report · Nov 23, 2021 · N601KS · Destroyed > The failure of the airplane’s canopy latch system, which resulted in the canopy opening in flight and a loss of airplane control. Contributing to the accident was the lack of a secondary canopy latch as recommended by the kit manufacturer. - [NTSB WPR22LA015](https://openairdocs.org/ntsb/WPR22LA015.md): Wsk-Mielec AN-2TD · Wilton, CA · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 14, 2021 · N857PF · Substantial damage > The pilot’s inability to control the airplane’s pitch during departure for reasons that could not be determined because of the extensive fragmentation and thermal damage the airplane sustained in the accident sequence. - [NTSB WPR22LA006](https://openairdocs.org/ntsb/WPR22LA006.md): Bevilacqua Jeffrey L Dragonfly Mkiih · Camarillo, CA · Accident · No injuries · Class 4 · Limited · Final report · Oct 10, 2021 · N186JB · Substantial damage > The pilot’s failure to maintain airplane control during takeoff - [NTSB WPR21LA071](https://openairdocs.org/ntsb/WPR21LA071.md): Co Z Cozy · Compton, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 17, 2020 · N82V · Substantial damage > The partial loss of engine power due to an improperly installed sparkplug. - [NTSB WPR20LA026](https://openairdocs.org/ntsb/WPR20LA026.md): Piper PA 18 · Livermore, CA · Accident · No injuries · Class 3 · Limited · Final report · Nov 16, 2019 · N8589D · Substantial damage > The improper installation of the flight control stick, which resulted in separation of the flight control stick from the stick stub assembly and an uncontrolled descent and impact with terrain. - [NTSB WPR20LA007](https://openairdocs.org/ntsb/WPR20LA007.md): Hiller UH 12E · Susanville, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Oct 14, 2019 · N131HA · Substantial damage > A partial loss of engine power due to multiple overtemperature events and a hot start event, which resulted in thermally damaged internal components of the engine. Contributing to the accident was the lack of suitable terrain on which to perform the forced… - [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 WPR19FA172](https://openairdocs.org/ntsb/WPR19FA172.md): Nanchang CJ6 · Porter Ranch, CA · Accident · 1 fatal · Class 3 · Field · Final report · Jun 15, 2019 · N269AG · Substantial damage > The pilot’s continued flight into marginal visual meteorological conditions, which resulted in controlled flight into terrain. - [NTSB GAA19CA324](https://openairdocs.org/ntsb/GAA19CA324.md): David Shotwell Murphy · South Lake Tahoe, CA · Accident · No injuries · Data collection · Final report · Jun 9, 2019 · N235DS · Substantial damage > The pilot's failure to properly tighten his seat belt, which allowed him to slide forward in his seat and resulted in his inadvertent application of excessive brake application during the landing roll and a subsequent noseover. - [NTSB GAA19CA241](https://openairdocs.org/ntsb/GAA19CA241.md): Stemme S 10 · Sonoma, CA · Accident · Minor injuries · Data collection · Final report · May 3, 2019 · N2280X · Substantial damage > The pilot's improper decision to land with a tailwind and his failure to maintain a proper approach, which resulted in a long landing, a runway overrun, and impact with a tree. - [NTSB WPR19FA118](https://openairdocs.org/ntsb/WPR19FA118.md): Northrop N9M · Norco, CA · Accident · 1 fatal · Class 2 · Field · Final report · Apr 22, 2019 · N9MB · Destroyed > The pilot's loss of control for undetermined reasons. - [NTSB WPR19LA058](https://openairdocs.org/ntsb/WPR19LA058.md): Beech A36 · Colusa, CA · Accident · 2 fatal · Class 2 · Limited · Final report · Jan 7, 2019 · N100JB · Destroyed > The pilot's loss of airplane control due to spatial disorientation shortly after takeoff in instrument meteorological conditions. - [NTSB GAA19CA075](https://openairdocs.org/ntsb/GAA19CA075.md): Darren M. Vinelli Sopwith PUP · Rio Vista, CA · Accident · No injuries · Data collection · Final report · Nov 26, 2018 · N1916Z · Substantial damage > The pilot's failure to maintain directional control during the landing roll in gusting tailwind conditions. - [NTSB GAA19CA068](https://openairdocs.org/ntsb/GAA19CA068.md): Silveira Jonathan A Sonex · Corona, CA · Accident · No injuries · Data collection · Final report · Nov 19, 2018 · N322JS · 2 aircraft · Substantial damage > The pilot’s failure to see and avoid the airplane on the runway while landing and the pilot receiving instruction’s and flight instructor's failure to properly scan the approach before pulling onto the runway during the takeoff. - [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 WPR18TA122](https://openairdocs.org/ntsb/WPR18TA122.md): Wilhelm Puslar · Salton City, CA · Accident · Minor injuries · Class 3 · Final report · Apr 18, 2018 · N332RP · Substantial damage > The pilot's improper fuel management, which resulted in a total loss of engine power due to fuel starvation. Contributing to the accident was the pilot's failure to perform the loss of engine power emergency procedures, which likely would have restored engine… - [NTSB WPR17LA214](https://openairdocs.org/ntsb/WPR17LA214.md): SC Aerostar YAK 52W · El Cajon, CA · Accident · No injuries · Limited investigation · Final report · Sep 23, 2017 · N52KF · Substantial damage > The pilot's failure to maintain directional control during taxi after a reduction in braking performance and steering capabilities due to his failure to reopen the air supply valve after the nonstandard engine start. - [NTSB WPR17LA094](https://openairdocs.org/ntsb/WPR17LA094.md): Yakovlev YAK 52 · Porterville, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 29, 2017 · N132MD · Substantial damage > A partial loss of engine power due to contaminants in the fuel system that decreased the fuel flow, the source of which could not be determined. - [NTSB WPR17FA091](https://openairdocs.org/ntsb/WPR17FA091.md): Nanchang CJ6A · Keene, CA · Accident · 1 fatal · Field investigation · Final report · Apr 27, 2017 · N192NG · Destroyed > The pilot's failure to maintain airplane control following a descent into clouds. - [NTSB WPR17FA089](https://openairdocs.org/ntsb/WPR17FA089.md): Appleby Nieuport 28 · Paso Robles, CA · Accident · 1 fatal · Field investigation · Final report · Apr 23, 2017 · N6190 · Substantial damage > The failure of unknown personnel to properly safety an elevator control cable turnbuckle, which disconnected in flight resulting in loss of pitch control. Contributing to the accident was the inadequate design of the experimental airplane, which did not… - [NTSB GAA17CA184](https://openairdocs.org/ntsb/GAA17CA184.md): CSP Leasing Cavalon · Santa Maria, CA · Accident · No injuries · Data collection · Final report · Mar 10, 2017 · N425AG · Substantial damage > The student pilot’s improper landing flare and subsequent failure to maintain crosswind correction during landing in crosswind conditions. - [NTSB WPR17LA067](https://openairdocs.org/ntsb/WPR17LA067.md): Guarino Vans · Marysville, CA · Accident · Minor injuries · Limited investigation · Final report · Feb 24, 2017 · N470LM · Substantial damage > A partial loss of engine power for reasons that could not be determined due to the fragmentation of the electrical system. - [NTSB WPR17LA032](https://openairdocs.org/ntsb/WPR17LA032.md): Hoskins Lonnie F Velocity XL RG · Petaluma, CA · Accident · Minor injuries · Limited investigation · Final report · Dec 4, 2016 · N84KJ · Substantial damage > The pilot’s failure to maintain adequate airspeed during an aborted landing, which resulted in an exceedance of the airplane’s critical angle of attack and an inadvertent aerodynamic stall. Contributing to the accident was the pilot’s distraction while on… - [NTSB GAA17CA034](https://openairdocs.org/ntsb/GAA17CA034.md): Yakovlev YAK · Tracy, CA · Accident · No injuries · Data collection · Final report · Oct 23, 2016 · N38YK · Substantial damage > The pilot’s unstabilized approach and delayed application of full throttle for a go-around, which resulted in an uncontrolled descent. - [NTSB GAA16CA489](https://openairdocs.org/ntsb/GAA16CA489.md): Burkhart Grob Flugzeugbau G109 · Emigrant Gap, CA · Accident · No injuries · Data collection · Final report · Sep 9, 2016 · N909G · Substantial damage > The pilot's inappropriate decision to continue the flight into higher elevation under high-density altitude conditions, which degraded the glider's climb performance and resulted in impact with trees short of the intended runway. - [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 WPR16LA134](https://openairdocs.org/ntsb/WPR16LA134.md): Bell OH 58A · Brawley, CA · Accident · No injuries · Limited investigation · Final report · Jul 2, 2016 · N6251G · Substantial damage > The engine's degraded performance due to excessive wear of the engine bleed valve, which prevented it from closing during the accident flight. Contributing to the accident was the operator's failure to overhaul the bleed valve within the… - [NTSB WPR16LA110](https://openairdocs.org/ntsb/WPR16LA110.md): Seguin Quickie · Mojave, CA · Accident · Minor injuries · Limited investigation · Final report · May 13, 2016 · N68TQ · Destroyed > A loss of engine power for reasons that could not be determined based on the available information. - [NTSB WPR16LA096](https://openairdocs.org/ntsb/WPR16LA096.md): DG Flugzeugbau DG 800B · Clements, CA · Accident · No injuries · Limited investigation · Final report · Apr 25, 2016 · N800YG · Substantial damage > The motorglider pilot's decision to perform an in-flight engine start with insufficient altitude, which resulted in an off-airport landing and collision with trees after the engine did not start. Contributing to the accident was the pilot's distraction by the… - [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 WPR15LA230](https://openairdocs.org/ntsb/WPR15LA230.md): Grumman G164 - B · Princeton, CA · Accident · No injuries · Limited investigation · Final report · Aug 4, 2015 · N48452 · Substantial damage > The loss of engine power during an agricultural application flight due to a cylinder failure. - [NTSB WPR15FA121](https://openairdocs.org/ntsb/WPR15FA121.md): Ryan Aeronautical ST3KR · Santa Monica, CA · Accident · Serious injuries · Field investigation · Final report · Mar 5, 2015 · N53178 · Substantial damage > A total loss of engine power during initial climb when the carburetor main metering jet became unseated, which led to an extremely rich fuel-to-air ratio. Contributing to the accident was the lack of adequate carburetor maintenance instructions. Contributing… - [NTSB WPR15LA104](https://openairdocs.org/ntsb/WPR15LA104.md): Scottish Bulldog - 120 121 · Hayward, CA · Accident · No injuries · Limited investigation · Final report · Feb 15, 2015 · N706BD · Substantial damage > A total loss of engine power during the initial climb due to fuel contamination. Contributing to the accident was the pilot’s inadequate preflight inspection of the fuel system. - [NTSB WPR15FA016](https://openairdocs.org/ntsb/WPR15FA016.md): Sonex Sonex Trigear · Fawnskin, CA · Accident · 1 fatal · Field investigation · Final report · Oct 20, 2014 · N91922 · Substantial damage > The pilot's failure to maintain airspeed after takeoff, which resulted in an exceedance of the airplane's critical angle of attack and a subsequent aerodynamic stall/spin at low altitude. Contributing to the accident was the airplane's reduced climb… Next page: https://openairdocs.org/ntsb.md?engine=99999&state=CA&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."eventStateOrRegion" = 'CA' 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 ``` This list as a web page: https://openairdocs.org/ntsb?engine=99999&state=CA --- 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.