# NTSB investigations: AiResearch TPE331 series 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 · 223 cases ## Latest cases - [NTSB WPR26FA309](https://openairdocs.org/ntsb/WPR26FA309.md): Cessna 441 · Cape Newenham, AK · Accident · 8 fatal · Class 3 · Field · Preliminary report · Aug 20, 2026 · N128EZ · Destroyed > On August 20, 2026, at about 1145 Alaska daylight time, a Cessna 441, N128EZ, was destroyed when it was involved in an accident near Cape Newenham, Alaska. The two pilots and six passengers were fatally injured. The airplane was operated as a Title 14 Code of… - [NTSB WPR26LA308](https://openairdocs.org/ntsb/WPR26LA308.md): Mitsubishi MU-2B-40 · Norton Shores, MI · Accident · No injuries · Class 4 · Limited · Final report · Aug 15, 2026 · N5LC · Substantial damage > The pilot’s failure to extend the landing gear before landing. - [NTSB DCA26LA151](https://openairdocs.org/ntsb/DCA26LA151.md): Fairchild SA227-AC · Denver, CO · Accident · No injuries · Class 4 · Limited · Investigation open · Mar 7, 2026 · N425MA · Substantial damage - [NTSB WPR26LA080](https://openairdocs.org/ntsb/WPR26LA080.md): Fairchild SA227-AC · Prescott, AZ · Accident · No injuries · Class 3 · Limited · Preliminary report · Jan 13, 2026 · N370AE · Substantial damage > On January 13, 2026, about 0624 mountain standard time, a Fairchild SA227-AC airplane, N370AE, was substantially damaged when it was involved in an accident near Prescott Municipal Airport (PRC), Prescott, Arizona. The pilot was not injured. The airplane was… - [NTSB WPR26FA040](https://openairdocs.org/ntsb/WPR26FA040.md): Beech B100 · Coral Springs, FL · Accident · 2 fatal · Class 3 · Field · Preliminary report · Nov 10, 2025 · N30HG · Destroyed > On November 10, 2025, about 1019 eastern standard time, a Beech King Air B100, N30HG, was destroyed when it was involved in an accident near Coral Springs, Florida. The pilot and passenger were fatally injured. The airplane was operated as a Title 14 Code of… - [NTSB ERA25FA246](https://openairdocs.org/ntsb/ERA25FA246.md): Cessna 441 · Warren, OH · Accident · 6 fatal · Class 3 · Field · Preliminary report · Jun 29, 2025 · N441LS · Substantial damage > On June 29, 2025, about 0654 eastern daylight time, a Cessna 441, N441LS, was destroyed when it was involved in an accident near Warren, Ohio. The airline transport pilot and five passengers were fatally injured. The airplane was operated as a Title 14 Code… - [NTSB WPR25MA128](https://openairdocs.org/ntsb/WPR25MA128.md): Mitsubishi MU-2B-40 · Copake, NY · Accident · 6 fatal · Class 3 · Major · Preliminary report · Apr 12, 2025 · N635TA · Destroyed > On April 12, 2025, about 1203 eastern daylight time, a Mitsubishi MU-2B-40, N635TA, was destroyed when it was involved in an accident near Copake, New York. The pilot and five passengers were fatally injured. The airplane was operated as a Title 14 Code of… - [NTSB CEN24LA291](https://openairdocs.org/ntsb/CEN24LA291.md): Ayres S2R-G6 · Antioch, NE · Accident · No injuries · Class 3 · Limited · Final report · Jul 26, 2024 · N6136Z · Substantial damage > A total loss of engine power due to fuel contamination from an undetermined source. - [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 WPR24LA165](https://openairdocs.org/ntsb/WPR24LA165.md): Grumman Acft ENG Cor-Schweizer G-164A · Rome, OR · Accident · No injuries · Class 4 · Limited · Final report · May 26, 2024 · N9853 · Substantial damage > The pilot’s failure to maintain airplane control during landing. - [NTSB WPR24FA124](https://openairdocs.org/ntsb/WPR24FA124.md): Gulfstream 695A · San Bernardino, CA · Accident · 1 fatal · Class 3 · Field · Final report · Apr 14, 2024 · N965BC · Destroyed > The pilot’s continued use of the airplane’s autopilot after flight into moderate to severe icing conditions, which resulted in an exceedance of the airplane’s critical angle of attack and an aerodynamic stall. - [NTSB WPR24FA123](https://openairdocs.org/ntsb/WPR24FA123.md): Ayres S2R-G10 · Derner, CA · Accident · 1 fatal · Class 3 · Field · Final report · Apr 9, 2024 · N40261 · Substantial damage > The pilot’s failure to adequately monitor his fuel supply, resulting in fuel exhaustion, a total loss of engine power, and the airplane’s impact with terrain. - [NTSB WPR24LA025](https://openairdocs.org/ntsb/WPR24LA025.md): Gulfstream Aerospace Commander 690C · Reno, NV · Accident · Serious injuries · Class 4 · Limited · Final report · Oct 26, 2023 · N840KB · Substantial damage > The pilot applicant’s excessive nose down pitch, and the check pilot’s delayed remedial action, which resulted in an impact with terrain. - [NTSB ERA23LA277](https://openairdocs.org/ntsb/ERA23LA277.md): Rockwell International 695 · Philadelphia, PA · Accident · No injuries · Class 3 · Limited · Final report · May 31, 2023 · N515AM · Substantial damage > Failure of the nose gear support structure for unknown reasons, which resulted in the nose landing gear collapsing during landing. - [NTSB WPR23LA072](https://openairdocs.org/ntsb/WPR23LA072.md): Cessna 441 · Liberal, KS · Accident · No injuries · Class 4 · Limited · Final report · Dec 13, 2022 · N253SB · Substantial damage > The pilot’s inadequate preflight inspection, failure to set the parking brake, and his decision to exit the airplane with engines running to remove a wheel chock, resulting in the airplane’s unintended movement and subsequent collision with a hangar. - [NTSB ANC22LA042](https://openairdocs.org/ntsb/ANC22LA042.md): Short Bros. & Harland SC7 · Chisana, AK · Accident · No injuries · Class 4 · Limited · Final report · Jun 8, 2022 · N731E · Substantial damage > The pilot’s selection of an unsuitable landing site, which resulted in the nosewheel collapsing. - [NTSB CEN22LA195](https://openairdocs.org/ntsb/CEN22LA195.md): Swearingen SA226-T(B) · Denver, CO · Accident · No injuries · Class 3 · Limited · Final report · May 6, 2022 · N36LC · Substantial damage > The captain’s failure to ensure that the parking brake was correctly released before takeoff, which resulted in seized brakes during landing and a subsequent loss of directional control and runway excursion. - [NTSB CEN22FA032](https://openairdocs.org/ntsb/CEN22FA032.md): Beech E-90 · Boyne City, MI · Accident · 2 fatal · Class 3 · Field · Final report · Nov 15, 2021 · N290KA · Destroyed > The pilot’s failure to maintain sufficient airspeed and his exceedance of the airplane’s critical angle of attack while in icing conditions, which resulted in an aerodynamic stall and subsequent ground impact. - [NTSB CEN21LA296](https://openairdocs.org/ntsb/CEN21LA296.md): Grumman Acft ENG Cor-Schweizer G-164B · Hoxie, AR · Accident · No injuries · Class 4 · Limited · Final report · Jun 29, 2021 · N6611K · Substantial damage > The pilot’s failure to ensure an adequate fuel supply for the intended flight. - [NTSB CEN21LA287](https://openairdocs.org/ntsb/CEN21LA287.md): Grumman G164 · Sedgwick, AR · Accident · No injuries · Class 3 · Limited · Final report · Jun 20, 2021 · N62375 · Substantial damage > The total loss of engine power due to the failure and disengagement of the torque sensor assembly front spur gear from its splined shouldered shaft due to a loose self-locking nut. - [NTSB CEN21FA215](https://openairdocs.org/ntsb/CEN21FA215.md): Swearingen SA226TC · Englewood, CO · Accident · No injuries · Class 3 · Field · Final report · May 12, 2021 · N280KL · 2 aircraft · Substantial damage > The Cirrus pilot’s failure to maintain the final approach course for the assigned runway, which resulted in a collision with the Swearingen which was on final approach to the parallel runway. Contributing to the accident was the failure of the controller to… - [NTSB ERA21LA124](https://openairdocs.org/ntsb/ERA21LA124.md): Cessna 441 · Belvidere, TN · Accident · 2 fatal · Class 3 · Limited · Final report · Feb 7, 2021 · N44776 · Destroyed > The pilot’s failure to follow the published instrument approach procedure by prematurely descending the airplane below the final approach fix altitude to fly under the low ceiling conditions, which resulted in controlled flight into terrain. - [NTSB CEN20LA215](https://openairdocs.org/ntsb/CEN20LA215.md): Mitsubishi MU2B · Sioux Falls, SD · Accident · 1 fatal · Class 3 · Limited · Final report · Jun 7, 2020 · N44MX · Destroyed > The pilot’s failure to maintain control of the airplane during takeoff for reasons that could not be determined. - [NTSB WPR20LA172](https://openairdocs.org/ntsb/WPR20LA172.md): Ayres S2R · Imperial, CA · Accident · No injuries · Class 3 · Limited · Final report · May 9, 2020 · N2245S · Substantial damage > The pilot's loss of control during a landing roll due to a failure of the main O-ring in the right brake assembly, which resulted in a loss of brake pressure and subsequent brake failure. - [NTSB CEN20LA125](https://openairdocs.org/ntsb/CEN20LA125.md): Mitsubishi MU 2B-40 · Chilton, WI · Accident · No injuries · Class 3 · Limited · Final report · Jan 29, 2020 · N425GZ · Substantial damage > The pilot's decision to land on the turf runway with insufficient landing performance and his subsequent loss of control during the landing roll. - [NTSB WPR20LA054](https://openairdocs.org/ntsb/WPR20LA054.md): Mitsubishi MU2B · Big Piney, WY · Accident · No injuries · Class 3 · Limited · Final report · Dec 30, 2019 · N43866 · Substantial damage > The failure of the right propeller position to correspond to the throttle change when moved to the beta position for reasons that could not be determined based on available evidence. - [NTSB CEN19LA231](https://openairdocs.org/ntsb/CEN19LA231.md): Ayres S2R · Breckenridge, MI · Accident · No injuries · Class 3 · Limited · Final report · Jul 21, 2019 · N766BF · Substantial damage > A total loss of engine power due to a lack of oil in the engine. The source of the inflight oil leak could not be determined based on the available information. - [NTSB GAA19CA264](https://openairdocs.org/ntsb/GAA19CA264.md): Aero Commander 695 · Mount Holly, NJ · Accident · No injuries · Data collection · Final report · May 11, 2019 · N51DM · Substantial damage > The airplane’s impact with a deer on the runway during takeoff. - [NTSB CEN19FA030](https://openairdocs.org/ntsb/CEN19FA030.md): Cessna 441 · Harmon, ND · Accident · 3 fatal · Class 2 · Field · Final report · Nov 18, 2018 · N441CX · Destroyed > The pilot's failure to maintain control of the airplane in dark night conditions that resulted in an in-flight positive overload failure of the wings and the subsequent in-flight breakup of the airplane. - [NTSB WPR18LA129](https://openairdocs.org/ntsb/WPR18LA129.md): Gulfstream AM Corp Comm Div 695A · Bishop, CA · Accident · No injuries · Class 3 · Limited · Final report · Apr 26, 2018 · N79PH · Substantial damage > The failure of the left main landing gear upper arm forging due to fatigue cracking and subsequent overstress, which resulted in the collapse of the landing gear during the landing roll. - [NTSB CEN18LA086](https://openairdocs.org/ntsb/CEN18LA086.md): Swearingen SA227 TT · Houston, TX · Accident · No injuries · Limited investigation · Final report · Jan 19, 2018 · N6UP · Substantial damage > The failure of the left starter relay during engine start, which resulted in a loss of electrical and battery power during the flight and led to a forced landing with the nose landing gear not fully extended, causing substantial damage to the engines. - [NTSB GAA18CA098](https://openairdocs.org/ntsb/GAA18CA098.md): Swearingen SA227 · Rock Springs, WY · Accident · No injuries · Data collection · Final report · Jan 11, 2018 · N561UP · Substantial damage > The pilot's failure to maintain directional control while taxiing in gusting tailwind conditions. - [NTSB ERA17FA181](https://openairdocs.org/ntsb/ERA17FA181.md): Mitsubishi MU2B · Eleuthera, Bahamas · Accident · 4 fatal · Field investigation · Final report · May 15, 2017 · N220N · Destroyed > The pilot's intentional flight into an area of known icing and convective thunderstorm activity, which resulted in a loss of control of the airplane. - [NTSB GAA17CA333](https://openairdocs.org/ntsb/GAA17CA333.md): Swearingen SA227 TT · Santa Monica, CA · Accident · No injuries · Data collection · Final report · Mar 12, 2017 · N53DA · Substantial damage > The pilot’s unstabilized approach after encountering wake turbulence, which resulted in a hard landing. - [NTSB WPR17LA030](https://openairdocs.org/ntsb/WPR17LA030.md): Aero Commander 690 · Scottsdale, AZ · Accident · No injuries · Limited investigation · Final report · Dec 1, 2016 · N9175N · Substantial damage > The pilot’s loss of directional control during the landing roll, which resulted in the runway excursion onto the rock-covered runway safety area. - [NTSB ANC17FA004](https://openairdocs.org/ntsb/ANC17FA004.md): Fairchild Heli-Porter Pilatus PC-6 · Port Alsworth, AK · Accident · 1 fatal · Field investigation · Final report · Oct 29, 2016 · N5308F · Substantial damage > The airplane's collision with mountainous terrain while operating in an area of reduced visibility and icing conditions. Contributing to the accident was the pilot's inadequate preflight planning, which would have identified deteriorating weather conditions… - [NTSB GAA16CA527](https://openairdocs.org/ntsb/GAA16CA527.md): Swearingen SA226 · Farmingdale, NY · Accident · No injuries · Data collection · Final report · Jun 20, 2016 · N127WD · Substantial damage > The pilot-in-command’s failure to extend the landing gear before landing and his failure to use the Before Landing checklist. Contributing to the accident was the pilots’ failure to maintain a sterile cockpit during landing. - [NTSB CEN16LA173](https://openairdocs.org/ntsb/CEN16LA173.md): Grumman Acft ENG Cor-Schweizer G 164B · Iowa, LA · Accident · No injuries · Limited investigation · Final report · May 4, 2016 · N8400K · Substantial damage > The pilot's failure to maintain directional control while landing with an inoperative right brake. - [NTSB CEN16WA179](https://openairdocs.org/ntsb/CEN16WA179.md): Swearingen SA 226T · Andorra, Lleida, Spain, Spain · Accident · No injuries · Foreign investigation · Apr 26, 2016 · N125WG · Substantial damage > On April 26, 2016, about 1535 hours universal coordinated time, a Swearingen SA-226T airplane, United States registration N125WG, was substantially damaged during landing at the Andorra – La Seu d'Urgell Airport (LESU); Andorra, Lleida, Spain. The airplane… - [NTSB CEN16RA136](https://openairdocs.org/ntsb/CEN16RA136.md): Mitsubishi MU 2B · Iles-de-la-Madeleine, Canada · Accident · 7 fatal · Foreign investigation · Mar 29, 2016 · N246W · Substantial damage > import - [NTSB CEN15LA202](https://openairdocs.org/ntsb/CEN15LA202.md): Fairchild SA227 AC · Rifle, CO · Accident · No injuries · Limited investigation · Final report · Apr 17, 2015 · N2691W · Substantial damage > The uncontained engine failure due to the fatigue failure of the second-stage turbine rotor disk. - [NTSB CEN15FA136](https://openairdocs.org/ntsb/CEN15FA136.md): Cessna 441 · Argyle, TX · Accident · 1 fatal · Field investigation · Final report · Feb 5, 2015 · N441TG · Substantial damage > The pilot's failure to maintain adequate airspeed during the instrument approach in night instrument meteorological conditions, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall/spin at a low altitude. - [NTSB ERA14FA112](https://openairdocs.org/ntsb/ERA14FA112.md): Gulfstream AM Corp Comm Div 690 · Bellevue, TN · Accident · 4 fatal · Field investigation · Final report · Feb 3, 2014 · N840V · Destroyed > The pilot's failure to maintain airspeed with one engine inoperative, which resulted in a loss of control while on approach. Contributing to the accident were airframe ice accumulation due to conditions conducive to icing and the loss of engine power on one… - [NTSB CEN13IA107](https://openairdocs.org/ntsb/CEN13IA107.md): Swearingen SA227-AC · Williston, ND · Incident · No injuries · Incident investigation · Final report · Dec 14, 2012 · N3108B · No damage > The snowplow driver’s failure to ensure that the runway was clear before driving onto it, which resulted in a runway incursion with a departing airplane. - [NTSB WPR12LA256](https://openairdocs.org/ntsb/WPR12LA256.md): Ayres S2R-G6 · Riverton, WY · Accident · No injuries · Limited investigation · Final report · Jun 11, 2012 · N70WY · Substantial damage > An engine overspeed shortly after takeoff for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or failures that would have precluded normal operation. - [NTSB ANC12CA036](https://openairdocs.org/ntsb/ANC12CA036.md): Short Bros. & Harland SC7 Series 3 · Chefornak, AK · Accident · No injuries · Data collection · Final report · May 3, 2012 · N1906 · Substantial damage > The pilot's misidentification of a nearby snow-covered road as the snow-covered runway in flat light conditions. - [NTSB CEN12CA215](https://openairdocs.org/ntsb/CEN12CA215.md): Cessna 441 · Battle Creek, MI · Accident · No injuries · Data collection · Final report · Mar 27, 2012 · N1212C · Substantial damage > The maintenance technician did not remove the tow bar prior to the flight. - [NTSB CEN11CA608](https://openairdocs.org/ntsb/CEN11CA608.md): Ayres S2R-G10 · Hot Springs, AR · Accident · Minor injuries · Data collection · Final report · Aug 5, 2011 · N22592 · Substantial damage > The pilot's improper decision not to fully jettison the entire load of water when he realized the airplane was not climbing after takeoff. - [NTSB WPR11FA159](https://openairdocs.org/ntsb/WPR11FA159.md): Fairchild SA227-AC · Seattle, WA · Accident · No injuries · Field investigation · Final report · Mar 11, 2011 · N671AV · Substantial damage > The pilot's failure to extend the landing gear, which resulted in a gear-up landing. - [NTSB DCA11WA032](https://openairdocs.org/ntsb/DCA11WA032.md): Grumman G21 · Al Ain, United Arab Emirates · Accident · 4 fatal · Foreign investigation · Feb 27, 2011 · N221AG · Destroyed Next page: https://openairdocs.org/ntsb.md?engine=01514&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 ('01514', '01517')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=01514 --- 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.