# Fatal NTSB investigations: Structural icing 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. ## Latest cases - [NTSB ERA24FA209](https://openairdocs.org/ntsb/ERA24FA209.md): Rockwell International 690A · Palmyra, VA · Accident · 2 fatal · Class 3 · Field · Final report · May 5, 2024 · N690BM · Destroyed > The pilot’s loss of control following an encounter with structural icing, which resulted in an inflight breakup of the airplane. - [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 ERA24FA176](https://openairdocs.org/ntsb/ERA24FA176.md): Piper PA-32R-301 · Knoxville, TN · Accident · 1 fatal · Class 3 · Field · Final report · Apr 12, 2024 · N9236J · Destroyed > The pilot’s decision to depart into an area of instrument meteorological and icing conditions, which resulted in loss of airplane control and a subsequent in-flight breakup. - [NTSB CEN24FA046](https://openairdocs.org/ntsb/CEN24FA046.md): Socata TBM 700 · Ludington, MI · Accident · 2 fatal · Class 3 · Field · Final report · Nov 26, 2023 · N850JH · Destroyed > The pilot’s decision to take off with ice/snow contamination on the airplane’s wings, which resulted in an aerodynamic stall and impact with terrain. - [NTSB ANC23LA065](https://openairdocs.org/ntsb/ANC23LA065.md): Beech B36TC · Cape Yakataga, AK · Accident · 2 fatal · Class 3 · Limited · Final report · Aug 27, 2023 · N6709Q · Destroyed > The pilot’s continued flight into moderate to severe icing conditions, including supercooled large droplets, over mountainous terrain, which resulted in a loss of control and impact with terrain. Contributing to the accident was the National Weather Service… - [NTSB CEN23FA220](https://openairdocs.org/ntsb/CEN23FA220.md): Vans RV7 · Gibbon, NE · Accident · 1 fatal · Class 3 · Field · Final report · Jun 2, 2023 · N977RV · Destroyed > The pilot’s improper decision to fly the airplane into known adverse weather and icing conditions which resulted in a loss of control. - [NTSB WPR23FA188](https://openairdocs.org/ntsb/WPR23FA188.md): Cessna T182T · Albany, WY · Accident · 2 fatal · Class 3 · Field · Final report · May 14, 2023 · N665B · Destroyed > The pilot’s decision to conduct flight into an area of icing in an airplane that was prohibited from such conditions, which resulted in exceedance of the airplane’s critical angle of attack, an aerodynamic stall/spin, and the pilot’s spatial disorientation… - [NTSB WPR23FA141](https://openairdocs.org/ntsb/WPR23FA141.md): Cirrus Design SR22 · Oxbow, OR · Accident · 2 fatal · Class 3 · Field · Final report · Apr 2, 2023 · N424SW · Destroyed > The pilot’s continued visual flight into instrument meteorological conditions, resulting in airframe ice accretion and a subsequent loss of airplane control. - [NTSB WPR23FA080](https://openairdocs.org/ntsb/WPR23FA080.md): Embraer Executive EMB-505 · Provo, UT · Accident · 1 fatal · Class 3 · Field · Final report · Jan 2, 2023 · N555NR · Substantial damage > The pilot’s failure to deice the airplane before takeoff in weather conditions conducive to ice accumulation, which resulted in an ice-contaminated wing and subsequent stall during takeoff. - [NTSB WPR22FA173](https://openairdocs.org/ntsb/WPR22FA173.md): Blue Side UP Comp AIR 8 SS52 · Grasmere, ID · Accident · 2 fatal · Class 3 · Field · Final report · May 8, 2022 · N801DT · Substantial damage > The pilot’s failure to maintain proper airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall. - [NTSB WPR22FA023](https://openairdocs.org/ntsb/WPR22FA023.md): Mooney M20M · Snoqualmie, WA · Accident · 1 fatal · Class 3 · Field · Final report · Oct 28, 2021 · N40KA · Substantial damage > The pilot’s decision to fly the airplane into known icing conditions, which resulted in a loss of airplane control and collision with terrain. - [NTSB CEN21FA238](https://openairdocs.org/ntsb/CEN21FA238.md): Lancair Evolution · McDermott, OH · Accident · 2 fatal · Class 3 · Field · Final report · May 28, 2021 · N515DL · Destroyed > The pilot’s failure to recognize and avoid airframe icing conditions, which resulted in a loss of airplane performance and a subsequent loss of control and in-flight break-up. - [NTSB CEN21FA198](https://openairdocs.org/ntsb/CEN21FA198.md): Piper PA-46-310P · Danville, AR · Accident · 4 fatal · Class 3 · Field · Final report · Apr 23, 2021 · N461DK · Substantial damage > The pilot’s improper decision to continue flight in an area of moderate-to-heavy icing conditions, which resulted in exceedance of the airplane’s anti-icing system capabilities, a degradation of aircraft performance, and subsequent aerodynamic stall. - [NTSB CEN21LA030](https://openairdocs.org/ntsb/CEN21LA030.md): Cessna 210 · Lubbock, TX · Accident · 1 fatal · Class 3 · Limited · Final report · Oct 26, 2020 · N9622T · Destroyed > The pilot’s improper decision to fly into icing conditions with an airplane that was not equipped for icing, which led to structural icing and a subsequent loss of airplane control, and the pilot’s impairment from carbon monoxide poisoning due to a cracked… - [NTSB CEN20FA075](https://openairdocs.org/ntsb/CEN20FA075.md): Cessna 182 · Chatham, LA · Accident · 3 fatal · Class 3 · Field · Final report · Feb 6, 2020 · N60381 · Destroyed > The pilot’s encounter with icing in-flight, which resulted in a loss of control and impact with terrain. - [NTSB WPR19FA154](https://openairdocs.org/ntsb/WPR19FA154.md): Cirrus SR22 · Grover, UT · Accident · 2 fatal · Class 2 · Field · Final report · May 24, 2019 · N809SR · Destroyed > The pilot's encounter with moderate to severe icing conditions during cruise flight, which resulted in structural icing and a subsequent loss of control. Contributing to the accident was the pilot’s decision to continue a flight route through known moderate… - [NTSB ANC19FA038](https://openairdocs.org/ntsb/ANC19FA038.md): Cessna 172 · Skwentna, AK · Accident · 1 fatal · Class 2 · Field · Final report · Mar 7, 2019 · N7469A · Substantial damage > The pilot’s decision to depart into marginal visual flight rule conditions in mountainous terrain with the potential for icing, and the airplane’s accumulation of structural icing, which resulted in the pilot’s inability to maintain airplane control and the… - [NTSB CEN19FA029](https://openairdocs.org/ntsb/CEN19FA029.md): Beech 55 · Liberal, KS · Accident · 2 fatal · Field investigation · Final report · Nov 17, 2018 · N4817M · Substantial damage > The pilot's improper decision to fly in an area where moderate icing conditions were forecasted in an airplane that was not certified for such conditions, and in the effort to get out of the icing conditions, his decision to fly below the minimum descent… - [NTSB ERA19FA039](https://openairdocs.org/ntsb/ERA19FA039.md): Cessna 310 · Walton, NY · Accident · 1 fatal · Field investigation · Final report · Nov 9, 2018 · N5044J · Destroyed > An in-flight fire of undetermined origin. Contributing to the accident were the severe icing conditions encountered during the final minutes of the flight, which led to a loss of airplane control. - [NTSB CEN19FA008](https://openairdocs.org/ntsb/CEN19FA008.md): Cessna 182 · Canoncito, NM · Accident · 2 fatal · Class 3 · Field · Final report · Oct 16, 2018 · N9326G · Substantial damage > The partial loss of engine power due to induction system icing. Contributing to the accident was the fractured carburetor heat control cable, which rendered the carburetor heat inoperative. - [NTSB CEN18FA144](https://openairdocs.org/ntsb/CEN18FA144.md): Cirrus Design SR22 · Williamsburg, PA · Accident · 2 fatal · Field investigation · Final report · Apr 19, 2018 · N451TD · Destroyed > The pilot's failure to obtain an updated weather briefing before the flight and his subsequent loss of airplane control due to spatial disorientation while maneuvering in instrument meteorological conditions during a diversion to an alternate airport after… - [NTSB CEN18FA143](https://openairdocs.org/ntsb/CEN18FA143.md): Beech G33 · Warsaw, OH · Accident · 2 fatal · Field investigation · Final report · Apr 16, 2018 · N9345Q · Substantial damage > The pilot's decision to continue flight in known icing conditions, which resulted in structural icing, degraded airplane performance, and a subsequent loss of control. Contributing to the accident was the pilot's failure to obtain an official weather briefing… - [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 CEN15FA119](https://openairdocs.org/ntsb/CEN15FA119.md): Cessna 182L · Owen, WI · Accident · 1 fatal · Field investigation · Final report · Jan 26, 2015 · N3181R · Substantial damage > The flight instructor's decision to initiate flight into forecasted icing conditions in an airplane that was not certified or equipped for flight into icing conditions, which resulted in significant structural ice accumulation to the extent that the airplane… - [NTSB DCA15MA029](https://openairdocs.org/ntsb/DCA15MA029.md): Embraer EMB-500 · Gaithersburg, MD · Accident · 6 fatal · Class 1 · Major · Final report · Dec 8, 2014 · N100EQ · Destroyed > the pilot's conduct of an approach in structural icing conditions without turning on the airplane's wing and horizontal stabilizer deice system, leading to ice accumulation on those surfaces, and without using the appropriate landing performance speeds for… - [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 WPR14FA094](https://openairdocs.org/ntsb/WPR14FA094.md): Beech B36TC · Yellow Pine, ID · Accident · 5 fatal · Field investigation · Final report · Dec 1, 2013 · N36ML · Destroyed > The pilot’s continued flight into known light-to-moderate icing conditions over mountainous terrain. Contributing to the accident was the loss of engine power due to induction icing. - [NTSB CEN14FA009](https://openairdocs.org/ntsb/CEN14FA009.md): Cessna 500 · Derby, KS · Accident · 2 fatal · Field investigation · Final report · Oct 18, 2013 · N610ED · Destroyed > The airplane's encounter with severe icing conditions, which resulted in structural icing, and the pilot's increased workload and subsequent disorientation while maneuvering in instrument flight rules (IFR) conditions with malfunctioning flight instruments,… - [NTSB DCA13WA050](https://openairdocs.org/ntsb/DCA13WA050.md): Bombardier CL600 2B19 · Almaty, Kazakhstan · Accident · 21 fatal · Foreign investigation · Jan 29, 2013 · UP-CJ006 · Destroyed > The Accident Investigation Department of the Ministry of Transport and Communications of the Republic of Kazakhstan has notified the NTSB of an accident involving a Bombardier Challenger CRJ-200, registration UP-CJ006, which occurred on January 29, 2013. The… - [NTSB CEN13FA130](https://openairdocs.org/ntsb/CEN13FA130.md): Raytheon 58 · Maxwell, NE · Accident · 4 fatal · Field investigation · Final report · Jan 11, 2013 · N36VE · Destroyed > The pilot’s inadvertent encounter with severe icing conditions, which resulted in structural icing and the subsequent loss of airplane control. - [NTSB WPR13FA086](https://openairdocs.org/ntsb/WPR13FA086.md): Beech V35A · Woody, CA · Accident · 2 fatal · Field investigation · Final report · Jan 7, 2013 · N35SD · Destroyed > An in-flight encounter with icing conditions during descent, which resulted in the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall followed by an in-flight breakup. - [NTSB CEN13FA122](https://openairdocs.org/ntsb/CEN13FA122.md): Bell Helicopter 407 · Clear Lake, IA · Accident · 3 fatal · Field investigation · Final report · Jan 3, 2013 · N445MT · Destroyed > The pilot’s inadvertent encounter with localized icing conditions and his subsequent in-flight loss of helicopter control. - [NTSB WPR13FA072](https://openairdocs.org/ntsb/WPR13FA072.md): Piper PA-31-350 · Payson, AZ · Accident · 1 fatal · Field investigation · Final report · Dec 19, 2012 · N62959 · Substantial damage > The airplane’s inadvertent encounter, in night instrument meteorological conditions, with unforecast strong up- and downdrafts and possibly severe airframe icing conditions (which likely included supercooled large droplets that the airplane was not… - [NTSB CEN13FA105](https://openairdocs.org/ntsb/CEN13FA105.md): Beech E-90 · Amarillo, TX · Accident · 2 fatal · Field investigation · Final report · Dec 15, 2012 · N67PS · Substantial damage > The pilot’s loss of control of the airplane after encountering icing conditions and heavy to extreme turbulence and the subsequent exceedance of the airplane’s design limit, which led to an in-flight breakup. - [NTSB CEN13FA096](https://openairdocs.org/ntsb/CEN13FA096.md): MBB BK 117 A-3 · Compton, IL · Accident · 3 fatal · Field investigation · Final report · Dec 11, 2012 · N911BK · Substantial damage > The inadvertent encounter with inclement weather, including snow, freezing rain, and reduced visibility conditions, which led to the pilot’s spatial disorientation and loss of aircraft control. - [NTSB WPR13FA041](https://openairdocs.org/ntsb/WPR13FA041.md): American AA-1 · Morgan, UT · Accident · 1 fatal · Field investigation · Final report · Nov 15, 2012 · N5642L · Substantial damage > The pilot's inadequate preflight inspection, which resulted in frost remaining on the airplane's surfaces and led to its inability to produce enough lift to clear rising terrain. - [NTSB CEN12FA161](https://openairdocs.org/ntsb/CEN12FA161.md): Cessna 414A · Hayden, CO · Accident · 2 fatal · Field investigation · Final report · Feb 19, 2012 · N4772A · Substantial damage > The pilot’s inadvertent stall during a missed approach. Contributing to the accident was the pilot’s operation of the airplane in forecasted icing conditions without using all of its anti-ice systems. - [NTSB ERA12FA115](https://openairdocs.org/ntsb/ERA12FA115.md): Socata TBM 700 · Morristown, NJ · Accident · 5 fatal · Field investigation · Final report · Dec 20, 2011 · N731CA · Destroyed > The airplane’s encounter with unforecasted severe icing conditions that were characterized by high ice accretion rates and the pilot's failure to use his command authority to depart the icing conditions in an expeditious manner, which resulted in a loss of… - [NTSB WPR11FA228](https://openairdocs.org/ntsb/WPR11FA228.md): Bellanca 17-30A · Rock Springs, WY · Accident · 2 fatal · Field investigation · Final report · May 18, 2011 · N93577 · Substantial damage > The pilot’s decision to continue flight into an area of known adverse weather, which resulted in an accumulation of structural ice that led to a loss of control and in-flight breakup. Also causal was the pilot’s inadequate preflight weather planning. - [NTSB ERA11FA182](https://openairdocs.org/ntsb/ERA11FA182.md): Diamond DA-40 · Allagash, ME · Accident · 1 fatal · Field investigation · Final report · Mar 7, 2011 · CGPDO · Substantial damage > The pilot's inadvertent encounter with icing conditions, which resulted in an aerodynamic stall and loss of control. Contributing was the pilots’ inadequate preflight weather planning. - [NTSB ERA11FA095](https://openairdocs.org/ntsb/ERA11FA095.md): Mooney M20R · Dundee, NY · Accident · 1 fatal · Field investigation · Final report · Dec 23, 2010 · N968SM · Substantial damage > The pilot's decision to operate in known moderate-to-severe icing conditions, which resulted in a loss of control during approach. - [NTSB WPR09LA263](https://openairdocs.org/ntsb/WPR09LA263.md): Lanham Lancair IV · Seligman, AZ · Accident · 2 fatal · Limited investigation · Final report · May 23, 2009 · N144L · Substantial damage > The pilot's loss of airplane control during en route descent while operating in known icing conditions. - [NTSB CEN09FA135](https://openairdocs.org/ntsb/CEN09FA135.md): Gulfstream Aerospace Commander · Wray, CO · Accident · 3 fatal · Field investigation · Final report · Jan 15, 2009 · N840NK · Destroyed > The pilot’s failure to maintain aircraft control during the approach resulting in an aerodynamic stall and subsequent impact with terrain. Contributing to the accident was the pilot’s improper preflight planning and conditions conducive for structural icing. - [NTSB NYC08LA176](https://openairdocs.org/ntsb/NYC08LA176.md): Desalvatore Al Lancair IV-P · Snow Hill, NC · Accident · 2 fatal · Limited investigation · Final report · May 8, 2008 · N101BX · Destroyed > An inadvertent encounter with icing conditions, resulting in a loss of aircraft control. Contributing to the accident was the pilot's inadequate preflight and in-flight decision making. - [NTSB DFW08FA131](https://openairdocs.org/ntsb/DFW08FA131.md): Cessna 182 · Black Hawk, CO · Accident · 1 fatal · Field investigation · Final report · May 8, 2008 · N8553S · Substantial damage > The loss of engine power due to induction icing. A contributing factor was the pilot's decision to continue flight in conditions favorable for structural and induction-system icing. - [NTSB NYC08FA139](https://openairdocs.org/ntsb/NYC08FA139.md): Mooney M20C · Atkins, VA · Accident · 2 fatal · Field investigation · Final report · Mar 16, 2008 · C-FRSK · Destroyed > The pilot's improper decision to take off in conditions conducive to icing, and his inability to maintain control of the airplane during an in-flight accumulation of structural ice. - [NTSB CHI08FAMS2](https://openairdocs.org/ntsb/CHI08FAMS2.md): Piper PA-28-161 · Vik, Iceland · Accident · 1 fatal · Missing aircraft · Final report · Feb 21, 2008 · N60842 · Substantial damage > The pilot's decision to fly into an area of forecast weather suitable for structural icing. Contributing to the accident was the effect of the structural icing encountered. ## 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."highestInjuryLevel" = 'Fatal' AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '210' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb-events/210/sequence?fatal=1 --- 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.