NTSB investigations
102 cases where the sequence of events included Structural icing.
Cases per year
| 2008 | 7 |
|---|---|
| 2009 | 7 |
| 2010 | 6 |
| 2011 | 7 |
| 2012 | 8 |
| 2013 | 11 |
| 2014 | 6 |
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 8 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 5 |
| 2022 | 4 |
| 2023 | 7 |
| 2024 | 7 |
| 2025 | 2 |
| 2026 | 2 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "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 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"
Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
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 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
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB WPR26LA126Accident · Minor injuriesClass 4 · LimitedFinal reportCirrus Design SR20 · Redington, AZThe pilot’s improper decision to continue the flight into icing conditions, which resulted in the accumulation of airframe icing and a subsequent aerodynamic stall.NTSB CEN26LA213Accident · No injuriesClass 3 · LimitedPreliminary reportTextron 182T · Newberry, MIOn January 22, 2026, about 18:40 eastern standard time, a Cessna 182T, N116D was substantially damaged when it was involved in an accident near Newberry, Michigan. The pilot was not injured. The airplane was operated under the provisions of Title 14 Code of…NTSB ERA25LA130Accident · Serious injuriesClass 4 · LimitedFinal reportPiper PA-28-235 · Manchester, VTThe pilot’s improper decision to continue the visual flight rules flight into instrument meteorological conditions, which resulted in the accumulation of airframe icing and a subsequent aerodynamic stall/spin.NTSB ERA25LA111Accident · Serious injuriesClass 4 · LimitedFinal reportCirrus Design SR22 · New Lexington, OHThe pilot’s flight into previously forecasted freezing rain, which resulted in ice accretion, reduced forward visibility, and a subsequent landing undershoot.NTSB WPR25LA053Accident · No injuriesClass 3 · LimitedFinal reportGulfstream AM Corp Comm Div 690D · Spokane, WAA partial loss of engine(s) power due ice ingestion.NTSB CEN25LA053Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-28R-200 · Boscobel, WIThe ice obstruction of the engine oil breather tube and alternate air outlet, which resulted in a failure of the crankcase oil seal and loss of engine oil. Contributing to the accident was the incorrect engine oil breather tube installed in the airplane by…NTSB WPR25LA029Accident · Serious injuriesClass 3 · LimitedFinal reportDaher TBM700 · Pinedale, WYThe pilot’s failure to ensure that the airplane was free of snow contamination before takeoff and to follow the manufacturer’s anti-icing procedure during continued snowfall, which resulted in an aerodynamic stall and loss of control shortly after liftoff.…NTSB ERA24FA209Accident · 2 fatalClass 3 · FieldFinal reportRockwell International 690A · Palmyra, VAThe pilot’s loss of control following an encounter with structural icing, which resulted in an inflight breakup of the airplane.NTSB WPR24FA124Accident · 1 fatalClass 3 · FieldFinal reportGulfstream 695A · San Bernardino, CAThe 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 ERA24FA176Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-32R-301 · Knoxville, TNThe 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 ERA24LA094Incident · No injuriesClass 3 · LimitedFinal reportCessna 208 · Dulles, VAThe pilot-in-command’s approach to the critical angle of attack during initial climb, which resulted in a vibration the flight crew improperly identified as an engine issue and resulted in the subsequent off-airport landing. Contributing to the accident was…NTSB CEN24FA046Accident · 2 fatalClass 3 · FieldFinal reportSocata TBM 700 · Ludington, MIThe 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 ANC23LA065Accident · 2 fatalClass 3 · LimitedFinal reportBeech B36TC · Cape Yakataga, AKThe 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 CEN23FA220Accident · 1 fatalClass 3 · FieldFinal reportVans RV7 · Gibbon, NEThe pilot’s improper decision to fly the airplane into known adverse weather and icing conditions which resulted in a loss of control.NTSB WPR23FA188Accident · 2 fatalClass 3 · FieldFinal reportCessna T182T · Albany, WYThe 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 WPR23FA141Accident · 2 fatalClass 3 · FieldFinal reportCirrus Design SR22 · Oxbow, ORThe pilot’s continued visual flight into instrument meteorological conditions, resulting in airframe ice accretion and a subsequent loss of airplane control.NTSB CEN23LA138Accident · Serious injuriesClass 4 · LimitedFinal reportSocata TB21 · Eden Prairie, MNThe pilot’s continued flight into icing conditions in an airplane that was not equipped for icing, which led to structural icing, subsequent loss of airplane control and impact with terrain.NTSB WPR23FA080Accident · 1 fatalClass 3 · FieldFinal reportEmbraer Executive EMB-505 · Provo, UTThe 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 CEN23LA091Accident · No injuriesClass 4 · LimitedFinal reportCessna 150G · Pocahantas, IAThe pilot’s landing flare which resulted in a bounced landing and the nose landing gear collapsing. Contributing to the accident was the airplane's encounter with adverse weather conditions which led to structural icing that affected flight characteristics…NTSB WPR22FA173Accident · 2 fatalClass 3 · FieldFinal reportBlue Side UP Comp AIR 8 SS52 · Grasmere, IDThe 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 ERA22LA191Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-32-260 · Grantsville, MDThe pilot’s decision to continue the flight into an area of moderate to heavy icing conditions, which resulted in a degradation of airplane performance and subsequent loss of control.NTSB ANC22LA013Accident · Minor injuriesClass 4 · LimitedFinal reportLeach Michael Rans S7S · Winnemucca, NVThe pilot’s failure to ensure the airplane’s wings were free of contaminates before departure.NTSB WPR22FA023Accident · 1 fatalClass 3 · FieldFinal reportMooney M20M · Snoqualmie, WAThe pilot’s decision to fly the airplane into known icing conditions, which resulted in a loss of airplane control and collision with terrain.NTSB ANC21LA073Accident · No injuriesClass 3 · LimitedFinal reportCessna 208 · Fairbanks, AKThe pilot’s unexpected encounter with supercooled liquid droplets (SLD), which resulted in a loss of control due to ice accumulation. Contributing to the accident were: (1) the pilot’s failure to maintain the minimum airspeed for flight in icing conditions,…NTSB CEN21FA238Accident · 2 fatalClass 3 · FieldFinal reportLancair Evolution · McDermott, OHThe 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 CEN21FA198Accident · 4 fatalClass 3 · FieldFinal reportPiper PA-46-310P · Danville, ARThe 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 ERA21LA122Accident · Serious injuriesClass 3 · LimitedFinal reportPiper PA46 · Leicester, MAThe pilot’s failure to maintain the minimum airspeed for flight in icing conditions, which resulted in a loss of elevator control during approach due to ice accumulation.NTSB CEN21LA030Accident · 1 fatalClass 3 · LimitedFinal reportCessna 210 · Lubbock, TXThe 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 CEN20FA075Accident · 3 fatalClass 3 · FieldFinal reportCessna 182 · Chatham, LAThe pilot’s encounter with icing in-flight, which resulted in a loss of control and impact with terrain.NTSB CEN20LA028Accident · No injuriesClass 3 · LimitedFinal reportBAE BAE125 · Detroit, MIThe pilots’ failure to increase approach speed as recommended for flight in icing conditions, which resulted in an aerodynamic stall and subsequent impact with terrain. Contributing to the accident was the failure of the stall warning system to advise the…NTSB GAA20CA075Accident · No injuriesData collectionFinal reportCessna 182 · Broomfield, COThe pilot’s inadvertent flight into icing conditions, which resulted in the accumulation of structural icing and an aerodynamic stall.NTSB WPR19FA154Accident · 2 fatalClass 2 · FieldFinal reportCirrus SR22 · Grover, UTThe 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 ANC19FA038Accident · 1 fatalClass 2 · FieldFinal reportCessna 172 · Skwentna, AKThe 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 GAA19CA096Accident · No injuriesData collectionFinal reportBeech 36 · Hartford, WIThe pilot's exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall and impact with terrain during landing in icing conditions.NTSB CEN19FA029Accident · 2 fatalField investigationFinal reportBeech 55 · Liberal, KSThe 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 ERA19FA039Accident · 1 fatalField investigationFinal reportCessna 310 · Walton, NYAn 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 CEN19FA008Accident · 2 fatalClass 3 · FieldFinal reportCessna 182 · Canoncito, NMThe 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 CEN18LA146Accident · Minor injuriesLimited investigationFinal reportCessna T303 · Pine Ridge, SDThe airplane’s inadvertent encounter with severe icing conditions during descent, which resulted in structural icing, the pilot’s inability to maintain altitude, and an emergency landing. Contributing to the accident was an incomplete preflight weather…NTSB CEN18FA144Accident · 2 fatalField investigationFinal reportCirrus Design SR22 · Williamsburg, PAThe 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 CEN18FA143Accident · 2 fatalField investigationFinal reportBeech G33 · Warsaw, OHThe 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 CEN18LA077Accident · Serious injuriesClass 3 · LimitedFinal reportBryk Steven L Velocity XL RG · Santa Fe, NMThe airplane’s inadvertent encounter with unforecasted icing conditions during cruise flight, which resulted in the accumulation of airframe icing, the airplane’s inability to maintain altitude, and a subsequent forced landing on rough terrain.NTSB ANC17TA015Accident · Serious injuriesFinal reportPiper PA-32 · Pilot Point, AKThe pilot's continued flight into known icing conditions, which resulted in structural icing and a forced landing on icy, snow-covered terrain.NTSB CEN17LA076Accident · No injuriesLimited investigationFinal reportCessna 182T · Green Bay, WIThe airplane’s encounter with unforecast icing conditions, which led to structural icing that obscured the pilot’s vision, an aerodynamic stall, and a subsequent hard landing.NTSB ANC17FA004Accident · 1 fatalField investigationFinal reportFairchild Heli-Porter Pilatus PC-6 · Port Alsworth, AKThe 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 GAA16CA107Accident · Minor injuriesData collectionFinal reportPiper PA 46 · Ottawa, KSThe flight crews encounter with un-forecasted freezing rain resulting in an uncontrolled descent, forced landing, and substantial damage to the airplane's firewall, and forward pressure bulkhead.NTSB CEN16LA093Accident · No injuriesLimited investigationFinal reportSocata TBM700 · Wichita, KSThe pilot’s failure to maintain the minimum-recommended approach airspeed in icing conditions, which resulted in a loss of airplane control.NTSB CEN16LA098Accident · No injuriesLimited investigationFinal reportCessna 441 · Fargo, NDThe pilot’s failure to cycle the surface deice boots during the instrument approach in icing conditions, which led to ice accumulation on the leading edges of the wings and empennage, and resulted in an aerodynamic stall and subsequent hard landing.NTSB CEN16LA076Accident · No injuriesLimited investigationFinal reportBeech 200 · Gary, INThe pilot's failure to maintain the glidepath and appropriate airspeed during landing in icing conditions, which resulted in an aerodynamic stall and a hard landing.NTSB CEN15FA119Accident · 1 fatalField investigationFinal reportCessna 182L · Owen, WIThe 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 ERA15CA100Accident · Minor injuriesData collectionFinal reportShannon William RV6A · Pikeville, KYThe pilot's failure to maintain airspeed during landing, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's failure to obtain a preflight weather briefing, and his subsequent flight into icing conditions, which resulted in…