# NTSB investigations: Development 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 4 · 152 cases ## Latest cases - [NTSB CEN25LA117](https://openairdocs.org/ntsb/CEN25LA117.md): Vans RV-7A · Plainview, TX · Accident · No injuries · Class 3 · Limited · Final report · Mar 10, 2025 · N923ZA · Substantial damage > The improper machining of the propeller blade bearing seat, which resulted in an inflight propeller blade fatigue failure. Contributing to the accident was the improper machining of the propeller hub and propeller blade root and machining surface quality… - [NTSB DCA25MA108](https://openairdocs.org/ntsb/DCA25MA108.md): Bombardier CL-600-2C10 · Washington, DC · Accident · 67 fatal · Class 1 · Major · Final report · Jan 30, 2025 · N709PS · 2 aircraft · Destroyed > The Federal Aviation Administration’s (FAA) placement of a helicopter route in close proximity to a runway approach path; their failure to regularly review and evaluate helicopter routes and available data, and their failure to act on recommendations to… - [NTSB CEN25LA043](https://openairdocs.org/ntsb/CEN25LA043.md): Pitts S1E · Seguin, TX · Accident · No injuries · Class 3 · Limited · Final report · Nov 17, 2024 · N52B · Substantial damage > The improper construction of the rudder cable assembly by the airplane builder, which resulted in the fatigue failure of the left rudder cable during the landing roll and the pilot’s subsequent inability to maintain directional control. - [NTSB ANC25LA008](https://openairdocs.org/ntsb/ANC25LA008.md): Cub Crafters CC18-180 · Anchorage, AK · Accident · Serious injuries · Class 3 · Limited · Final report · Nov 2, 2024 · N55PK · Substantial damage > The incorrect installation of the rear flight control stick, resulting in the pilot’s inability to control the pitch attitude, coupled with the pilot’s inadequate control system check before departure, all which resulted in an aerodynamic stall during takeoff. - [NTSB ERA24LA392](https://openairdocs.org/ntsb/ERA24LA392.md): Piper PA28 · LaGrange, GA · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 23, 2024 · N4298V · Substantial damage > Improper manufacture of a cylinder exhaust valve guide by the engine manufacturer, which resulted in a stuck exhaust valve and a partial loss of engine power during initial climb. - [NTSB CEN24LA318](https://openairdocs.org/ntsb/CEN24LA318.md): Ayres S2R · Stanwood, MI · Accident · No injuries · Class 3 · Limited · Final report · Jun 20, 2024 · N4004K · Substantial damage > The pilot’s failure to maintain terrain clearance during a low-level aerial application flight, which resulted in impact with terrain and a subsequent forced landing. Contributing to the accident was the location of the spray boom pressure gauge, which… - [NTSB CEN24FA218](https://openairdocs.org/ntsb/CEN24FA218.md): Cessna 172 · Gainesville, TX · Accident · 1 fatal · Class 3 · Field · Final report · Jun 12, 2024 · N656MA · Substantial damage > The fuel pump manufacturer’s improper torquing of screws on the engine-driven fuel pump, which resulted in a disruption in the fuel system and a loss of engine power on initial climb. - [NTSB ERA24LA163](https://openairdocs.org/ntsb/ERA24LA163.md): Evektor-Aerotechnik A S Harmony LSA · Seffner, FL · Accident · Serious injuries · Class 3 · Limited · Final report · Apr 4, 2024 · N469JA · Substantial damage > The improper installation of the fuel line that connected the fuel pump to the four-way distributor, which resulted in fuel starvation when the line became disconnected. - [NTSB ENG24LA012](https://openairdocs.org/ntsb/ENG24LA012.md): British Aerospace BAE 146 Series 200A · Missoula, MT · Incident · Class 3 · Limited · Final report · Mar 1, 2024 · N474NA · 2 aircraft · Minor damage > The use of a new long term fire retardant with a chemical composition incompatible with the retardant previously in use for the integration-operational field evaluation without adequate testing and qualification. - [NTSB CEN24LA121](https://openairdocs.org/ntsb/CEN24LA121.md): Piper PA-28-181 · Watertown, SD · Accident · No injuries · Class 3 · Limited · Final report · Feb 25, 2024 · N38696 · Substantial damage > The stuck No. 2 cylinder exhaust valve, which resulted in a partial loss of engine power and a forced landing due to an undersized exhaust valve guide. Contributing to the accident were the improper manufacture of the engine cylinders, and the operation of… - [NTSB ERA24LA216](https://openairdocs.org/ntsb/ERA24LA216.md): Apellix B1 Washing Drone · Orlando, FL · Accident · Serious injuries · Class 3 · Limited · Final report · Feb 20, 2024 · FA33N7WLTR · Substantial damage > A failure of the sUAS’s magnetometer while operating in close proximity to commercial air conditioning equipment, which resulted in the sUAS’s erratic maneuvering. Contributing to the accident was the RPIC’s failure to input the appropriate command to disarm… - [NTSB ERA24LA099](https://openairdocs.org/ntsb/ERA24LA099.md): Swissdrones Operating SDO 50 V2 · Antioch, GA · Accident · No injuries · Class 3 · Limited · Final report · Jan 18, 2024 · N780PA · Substantial damage > A 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 DCA24LA330](https://openairdocs.org/ntsb/DCA24LA330.md): Boeing 737-8 · Kenner, LA · Incident · Class 2 · Limited · Final report · Dec 20, 2023 · N8830Q · Minor damage > A partial loss of engine power due to bird ingestion in the No. 1 (left) engine, which resulted in the activation of the load reduction device to prevent vibration. The load reduction device activation resulted in smoke and fumes entering the cockpit. - [NTSB ERA24LA066](https://openairdocs.org/ntsb/ERA24LA066.md): Diamond Aircraft Ind DA 40 NG · Asheville, NC · Accident · Serious injuries · Class 3 · Limited · Final report · Dec 15, 2023 · N907L · Substantial damage > Fatigue failure of the No. 4 inner main bearing cap screw and connecting rod bolts, which resulted in a total loss of engine power. Contributing to the failure were the low material strength of the inner main bearing cap screw and the increased loads on the… - [NTSB WPR24FA053](https://openairdocs.org/ntsb/WPR24FA053.md): Beauchamp Norm Kitfox · Eloy, AZ · Accident · 1 fatal · Class 3 · Field · Final report · Dec 8, 2023 · N66180 · Destroyed > The separation of a propeller blade during the initial climb due to insufficient blade retention forces. Contributing to the accident was the propeller blade retention design, manufacturing defects that prevented the propeller from achieving adequate grip… - [NTSB ENG24FA003](https://openairdocs.org/ntsb/ENG24FA003.md): Boeing 767-300F · Memphis, TN · Incident · No injuries · Class 3 · Field · Final report · Oct 18, 2023 · N287FE · Minor damage > A high-pressure fuel leak from a gap in the bolted flange interface between the main fuel pump’s fuel crossover supply tube and the hydromechanical unit idler adapter pad, which resulted in the crossover tube flange bolts partially pulling out and allowing… - [NTSB CEN23LA390](https://openairdocs.org/ntsb/CEN23LA390.md): Zlin Aviation S R O Savage Norden · Cabot, AR · Accident · No injuries · Class 3 · Limited · Final report · Aug 30, 2023 · N7373 · Substantial damage > The airplane manufacturer’s routing of the fuel pump wiring next to the engine’s turbocharger and exhaust, which thermally damaged the wiring and resulted in a malfunction of the fuel delivery system and a total loss of engine power. - [NTSB WPR23LA270](https://openairdocs.org/ntsb/WPR23LA270.md): Sling Sling LSA · Palm Springs, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 11, 2023 · N294JY · Substantial damage > Failure of the landing gear strut during takeoff due to a preexisting cracks that were caused by a manufacturing anomaly during the composite fiber layup process. - [NTSB ERA23LA293](https://openairdocs.org/ntsb/ERA23LA293.md): Hughes 369D · Waldorf, MD · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 9, 2023 · N5027P · Substantial damage > Fatigue failure of the overrunning clutch outer race and a subsequent inflight loss of power due to abnormal bending loads as a result of improper reassembly of the clutch subassembly following maintenance and the presence of microcracks on the clutch’s outer… - [NTSB WPR23LA255](https://openairdocs.org/ntsb/WPR23LA255.md): Avia Stroitel AC-5M · North Plains, OR · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 5, 2023 · N40233 · Substantial damage > The pilot’s failure to maintain control of the motor glider, which resulted in an inflight overstress separation of the right wing during a high-speed, high-wing-load spiral dive recovery. Contributing to the accident was the inadequately manufactured wing… - [NTSB DCA23LA133](https://openairdocs.org/ntsb/DCA23LA133.md): Boeing 777-222 · Honolulu, HI · Incident · No injuries · Class 3 · Limited · Final report · Jan 24, 2023 · N774UA · 2 aircraft · No damage > The airport’s continued use of taxiway Kilo, despite an identified risk of pilots repeatedly failing to stop at a hold short line prior to two intersecting runways. Contributing were 1) the operator’s moving map display, which omitted a published restriction… - [NTSB CEN23LA014](https://openairdocs.org/ntsb/CEN23LA014.md): Diamond Aircraft Ind DA 62 · Dallas, TX · Accident · No injuries · Class 3 · Limited · Final report · Oct 15, 2022 · N84LT · Substantial damage > A total loss of airplane electrical power for undetermined reasons, which resulted in a complete loss of engine power to both engines. Contributing was the worn main battery and the incorrectly wired ECU backup batteries. - [NTSB ERA23FA007](https://openairdocs.org/ntsb/ERA23FA007.md): Seamax M-22 · East Hampton, NY · Accident · 1 fatal · Class 3 · Field · Final report · Oct 6, 2022 · N46PD · Substantial damage > An inflight separation of the right wing as a result of the manufacturer’s application of a bolt and nut in the upper wing strut attachment point that was inconsistent with the nut design intent and usage limitations. - [NTSB WPR22LA357](https://openairdocs.org/ntsb/WPR22LA357.md): Vashon Ranger R7 · Glendale, AZ · Accident · No injuries · Class 3 · Limited · Final report · Sep 27, 2022 · N151VR · Substantial damage > Failure of the landing gear due to material deficiencies that reduced the strength of the landing gear. - [NTSB CEN22LA430](https://openairdocs.org/ntsb/CEN22LA430.md): Agusta AW139 · Houma, LA · Accident · No injuries · Class 3 · Limited · Final report · Sep 24, 2022 · N811TA · Substantial damage > The inflight loss of collective control of the helicopter due to thermal damage of a collective control torque tube that abraded with misrouted electrical wiring, which resulted in an electrical short and inflight fire. Contributing to the accident were the… - [NTSB DCA22MA193](https://openairdocs.org/ntsb/DCA22MA193.md): Dehavilland DHC-3 · Freeland, WA · Accident · 10 fatal · Class 1 · Major · Final report · Sep 4, 2022 · N725TH · Destroyed > The in-flight unthreading of the clamp nut from the horizontal stabilizer trim actuator barrel due to a missing lock ring, which resulted in the horizontal stabilizer moving to an extreme trailing-edge-down position rendering the airplane’s pitch… - [NTSB DCA22LA175](https://openairdocs.org/ntsb/DCA22LA175.md): Boeing 777 · Chicago, IL · Accident · No injuries · Class 4 · Limited · Final report · Aug 6, 2022 · A7-BFH · Substantial damage > The ground controller’s inappropriate routing of the B777 through a non-movement area, resulting in the airplane’s right wingtip contacting a light pole. Contributing to the accident was the lack of an appropriate display of taxiway BB2 as a restricted… - [NTSB ERA21FA346](https://openairdocs.org/ntsb/ERA21FA346.md): Cessna 560 · Farmington, CT · Accident · 4 fatal · Class 2 · Field · Final report · Sep 2, 2021 · N560AR · Destroyed > The pilot-in-command’s failure to release the parking brake before attempting to initiate the takeoff, which produced an unexpected retarding force and airplane-nose-down pitching moment that prevented the airplane from becoming airborne within the takeoff… - [NTSB DCA21FA085](https://openairdocs.org/ntsb/DCA21FA085.md): Boeing 777-222 · Broomfield, CO · Incident · No injuries · Class 3 · Field · Final report · Feb 20, 2021 · N772UA · Minor damage > The fatigue failure of the right engine fan blade. Contributing to the fan blade failure was the inadequate inspection of the blades, which failed to identify low-level indications of cracking, and the insufficient frequency of the manufacturer’s inspection… - [NTSB ENG21LA011](https://openairdocs.org/ntsb/ENG21LA011.md): Cessna 501 · Opa Locka, FL · Incident · No injuries · Class 3 · Limited · Final report · Dec 31, 2020 · N75TL · Minor damage > An uncontained left engine failure caused by a low cycle fatigue crack that originated from a manufacturing machining groove on the high pressure compressor impeller aft face. Contributing to the incident was service bulletin borescope inspection criteria… - [NTSB DCA20IA081](https://openairdocs.org/ntsb/DCA20IA081.md): Aerospatiale AS350BA · Johnson Valley, CA · Incident · No injuries · Class 3 · Incident · Final report · Feb 6, 2020 · N611TC · 2 aircraft · Minor damage > the failure of the small UAS remote pilot to give way to the helicopter, resulting in an inflight collision. Contributing to the incident was the sUAS remote pilot’s failure to assess and mitigate the risks of operations in close proximity to other aircraft.… - [NTSB DCA20MA002](https://openairdocs.org/ntsb/DCA20MA002.md): Saab 2000 · Unalaska, AK · Accident · 1 fatal · Class 1 · Major · Final report · Oct 18, 2019 · N686PA · Substantial damage > The landing gear manufacturer’s incorrect wiring of the wheel speed transducer harnesses on the left main landing gear during overhaul. The incorrect wiring caused the antiskid system not to function as intended, resulting in the failure of the left outboard… - [NTSB WPR19FA230](https://openairdocs.org/ntsb/WPR19FA230.md): Cessna 560XL · Oroville, CA · Accident · No injuries · Class 3 · Field · Final report · Aug 21, 2019 · N91GY · Destroyed > The pilot’s failure to release the parking brake before attempting to initiate the takeoff, which produced an unexpected retarding force and airplane nose down pitching moment. Also causal was the flight crew’s delayed decision to abort the takeoff, which… - [NTSB CEN19LA159](https://openairdocs.org/ntsb/CEN19LA159.md): Lancair LC41 · Cleburne, TX · Accident · No injuries · Class 3 · Limited · Final report · May 30, 2019 · N2514F · Substantial damage > A total loss of engine power due to oil starvation as the result of the oil pressure switch failure due to a manufacturing defect. - [NTSB CEN19MA141](https://openairdocs.org/ntsb/CEN19MA141.md): De Havilland DHC-2 · Ketchikan, AK · Accident · 6 fatal · Class 1 · Major · Final report · May 13, 2019 · N952DB · 2 aircraft · Destroyed > The inherent limitations of the see-and-avoid concept, which prevented the two pilots from seeing the other airplane before the collision, and the absence of visual and aural alerts from both airplanes’ traffic display systems, while operating in a geographic… - [NTSB ERA19FA170](https://openairdocs.org/ntsb/ERA19FA170.md): Piper PA 30 · Naples, FL · Accident · 1 fatal · Class 3 · Field · Final report · May 11, 2019 · N7650Y · Destroyed > Incapacitation of the pilot due to a birdstrike through the windshield in front of the pilot's position, while on approach to land. - [NTSB ENG19IA008](https://openairdocs.org/ntsb/ENG19IA008.md): Airbus A220 · Busan, South Korea · Incident · Class 3 · Incident · Final report · Dec 26, 2018 · HL8314 · No damage > The manufacturer’s inadequate cleaning of the crucible before melting the nickel alloy used in casting the low pressure turbine stage 3 blades that resulted in a casting anomaly from where an intergranular crack occurred became the origin of a fatigue crack… - [NTSB ERA18LA134](https://openairdocs.org/ntsb/ERA18LA134.md): Stanley Ernie Sigurd Kolb Mark · Collegedale, TN · Accident · 1 fatal · Limited investigation · Final report · Apr 20, 2018 · N9123R · Destroyed > The pilot's loss of airplane control, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's improper decision to take off in the nonairworthy airplane in which he had no training and his lack of flight experience in the 17… - [NTSB DCA18LA163](https://openairdocs.org/ntsb/DCA18LA163.md): Airbus A330 323 · Atlanta, GA · Accident · No injuries · Class 3 · Limited · Final report · Apr 18, 2018 · N806NW · Substantial damage > The flight crew’s delayed landing after an in-flight engine fire, which reignited after both fire bottles were discharged and resulted in substantial damage to an engine pylon. Contributing to the delayed landing was likely the flight crew’s perception that… - [NTSB ERA18LA117](https://openairdocs.org/ntsb/ERA18LA117.md): Stanley Lancair · Sebring, FL · Accident · No injuries · Class 3 · Limited · Final report · Mar 28, 2018 · C-GSQQ · Substantial damage > The failure of ground personnel to obtain permission from airport management to conduct engine test runs; adequately monitor the area behind the B737 for traffic; and install barricades to prevent access behind the running airplane, which resulted in the… - [NTSB ANC18LA018](https://openairdocs.org/ntsb/ANC18LA018.md): Costruzioni Aeronautiche Tecna P2006 · Lynchburg, VA · Accident · No injuries · Class 2 · Limited · Final report · Jan 1, 2018 · N594MA · Substantial damage > The failure of the left main landing gear assembly due to a fatigue fracture along the inside circumferential weld on the trailing arm’s attachment flange, which resulted from the manufacturer’s inadequate welding of the trailing arm connecting the lower arm… - [NTSB ANC18LA008](https://openairdocs.org/ntsb/ANC18LA008.md): Cloud Jeffrey Ferrell Long EZ · Eufaula, AL · Accident · No injuries · Limited investigation · Final report · Nov 11, 2017 · N754T · Substantial damage > The in-flight separation of a portion of the propeller, which subsequently penetrated the right rudder, as a result of the failure of the bond line between two of the propeller’s wood layers. Contributing to the failure of the propeller was the manufacturer’s… - [NTSB ERA17LA263](https://openairdocs.org/ntsb/ERA17LA263.md): Sikorsky S-97A · Jupiter, FL · Accident · Minor injuries · Limited investigation · Final report · Aug 2, 2017 · N971SK · Substantial damage > A design change in the helicopter's fly-by-wire control system that resulted in an increase in the sensitivity of the cyclic stick while transitioning from ground to flight mode, magnifying the pilot's control inputs, which resulted in unintentional over… - [NTSB WPR17LA159](https://openairdocs.org/ntsb/WPR17LA159.md): Robinson Helicopter R44 II · Van Nuys, CA · Accident · Serious injuries · Limited investigation · Final report · Jul 21, 2017 · N3254E · Substantial damage > An improper repair of the right magneto's tachometer and governor signal wire, which failed during cruise flight and initiated a simultaneous malfunction of both the engine tachometer and governor control system, which resulted in erroneous and contradictory… - [NTSB CEN17LA264](https://openairdocs.org/ntsb/CEN17LA264.md): Bell 47D1 · Big Lake, MN · Accident · No injuries · Limited investigation · Final report · Jul 6, 2017 · N153B · Substantial damage > The failure of the metal core assembly within a wooden main rotor blade due to undetected corrosion and fatigue, which caused the wooden blade to separate from the rotor mast. - [NTSB CEN17LA156](https://openairdocs.org/ntsb/CEN17LA156.md): Loomis Xenon 4 · Knoxville, IA · Accident · No injuries · Limited investigation · Final report · Apr 17, 2017 · N912XV · Substantial damage > A partial loss of engine power for reasons that could not be determined based on the available information. Contributing to the accident was the failure of the owners to obtain proper materials regarding the operation and maintenance of the engine. - [NTSB ANC17FA009](https://openairdocs.org/ntsb/ANC17FA009.md): Bellanca 7GCBC · Fairbanks, AK · Accident · 1 fatal · Class 3 · Field · Final report · Dec 7, 2016 · N88452 · Substantial damage > The pilot’s decision to operate the airplane at an altitude too low to allow for recovery from an intentional aerodynamic stall. Contributing to the accident was the pilot’s lack of knowledge of the stall performance characteristics of the airplane modified… - [NTSB DCA17FA021](https://openairdocs.org/ntsb/DCA17FA021.md): Boeing 767 · Chicago, IL · Accident · Serious injuries · Class 1 · Field · Final report · Oct 28, 2016 · N345AN · Substantial damage > The failure of the high-pressure turbine (HPT) stage 2 disk, which severed the main engine fuel feed line and breached the right main wing fuel tank, releasing fuel that resulted in a fire on the right side of the airplane during the takeoff roll. The HPT… - [NTSB GAA16CA442](https://openairdocs.org/ntsb/GAA16CA442.md): Cessna 172 · Anchorage, AK · Accident · No injuries · Data collection · Final report · Aug 20, 2016 · N35408 · Substantial damage > The facility's designation of the taxiway for use by maintenance personnel to conduct high thrust tests without appropriate safeguards in place, which led to maintenance personnel conducting high-power, run-up thrust procedures across the active taxiway and… - [NTSB ERA16LA274](https://openairdocs.org/ntsb/ERA16LA274.md): Alisport Silent 2 Targa · London, KY · Accident · Minor injuries · Limited investigation · Final report · Jul 24, 2016 · N602SL · Substantial damage > The pilot's failure to properly secure the right side of the canopy before takeoff, and an in-flight collision with trees while maneuvering with an open canopy. Contributing to the pilot's failure to properly secure the canopy was the lack of a visual… Next page: https://openairdocs.org/ntsb-findings/0401/cases.md?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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '0401')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb-findings/0401/cases --- 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.