NTSB investigations
103 cases where NTSB found Conducive to structural icing.
Cases per year
| 2008 | 7 |
|---|---|
| 2009 | 9 |
| 2010 | 10 |
| 2011 | 13 |
| 2012 | 6 |
| 2013 | 11 |
| 2014 | 5 |
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 9 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 5 |
| 2025 | 1 |
| 2026 | 1 |
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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f.\"findingCode\", '03031025')) 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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '03031025')) 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 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 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 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 WPR24FA083Accident · 2 fatalClass 2 · FieldFinal reportHawker Beechcraft Hawker 900XP · Westwater, UTThe flight crew’s decision to conduct a post-maintenance stall test in an area of icing conditions, which resulted in wing contamination that significantly decreased the airplane’s critical angle of attack. Also causal was the airplane manufacturer’s lack of…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 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 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 WPR21LA151Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-28-140 · Yacolt, WAA partial loss of power caused by carbon build up in the cylinders, which prevented the exhaust valves from seating properly. Contributing to the accident was flying in moderate icing conditions which resulted in reduced aircraft performance and vibrations.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 CEN21LA101Accident · No injuriesClass 3 · LimitedFinal reportBeech 65-A80-8800 · Alexandria, MNThe pilot’s decision to attempt takeoff with frost covering the airplane and rotating below the published rotation speed, which led to exceedance of the airplane’s critical angle of attack and an aerodynamic stall.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 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 CEN19FA082Accident · 2 fatalClass 2 · FieldFinal reportCessna 421 · Canadian, TXThe pilot's failure to maintain control of the airplane while in instrument meteorological conditions with icing conditions present, which resulted in an aerodynamic stall and spin into terrain.NTSB ERA19LA072Accident · 2 fatalClass 3 · LimitedFinal reportPiper PA46 · Mayport, FLAn in-flight loss of control following an encounter with supercooled large droplet icing conditions, which ultimately resulted in an uncontrolled descent and subsequent inflight breakup. Also causal was the pilot’s failure to maintain an appropriate airspeed…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 CEN19LA039Accident · Minor injuriesLimited investigationFinal reportCessna 550 · Fargo, NDThe pilot's failure to lower the flaps during the approach and maintain sufficient airspeed while flying in instrument meteorological and icing conditions and the accumulation of ice on the wings’ leading edges, which resulted in the exceedance of the…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 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 WPR18FA073Accident · 1 fatalField investigationFinal reportPiper PA 23-250 · Elko, NVThe pilot's inadequate preflight weather planning, which resulted in the flight over mountainous terrain into forecast instrument meteorological conditions, icing, and mountain wave, and resulted in an uncontrolled descent and collision with terrain.NTSB CEN17CA114Accident · No injuriesData collectionFinal reportCessna 340A · Waukesha, WIThe pilot’s decision to fly in in conditions conducive to structural icing and her subsequent failure to maintain airplane control during the instrument approach.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 GAA17CA109Accident · No injuriesData collectionFinal reportPiper PA28R · Kewanee, ILThe pilot’s failure to extend the landing gear during the approach to land.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 CEN16FA095Accident · 1 fatalField investigationFinal reportCirrus Design SR22T · Xenia, OHThe pilot's failure to maintain adequate airspeed while turning from the base leg to final, which resulted in the wing's critical angle-of-attack being exceeded and a subsequent aerodynamic stall.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 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 CEN15LA137Accident · Serious injuriesLimited investigationFinal reportBeech A36 · Andrews, TXThe pilot's failure to note that icing conditions existed in the airport area despite having received that information in a preflight briefing, which resulted in his flight into an area of icing and the subsequent loss of airplane control due to ice…NTSB CEN15LA109Accident · No injuriesLimited investigationFinal reportCessna 182R · Santa Fe, NMThe pilot’s failure to remove ice from the airplane’s surfaces before departure, which resulted in the airplane’s inability to attain sufficient airspeed shortly after takeoff, the subsequent exceedance of the airplane’s critical angle-of-attack, and an…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…NTSB CEN15LA091Accident · No injuriesLimited investigationFinal reportCessna 208B · Roswell, NMThe pilot's failure to maintain adequate airspeed to compensate for icing on the airplane's wings and control surfaces during a circling approach, which resulted in an aerodynamic stall and impact with terrain.NTSB CEN15LA021Accident · No injuriesLimited investigationFinal reportRaytheon 58 · Dixon, ILThe pilots’ improper decision to continue flight in icing conditions after the deicing boots could not shed accumulated ice, which resulted in a temporary loss of airplane control.NTSB CEN14IA139Incident · No injuriesIncident investigationFinal reportCirrus Design SR22 · Gunnison, COThe pilot's improper decision to initiate the flight into an area with forecast icing conditions, which resulted in an encounter with in-flight icing conditions that prevented the airplane from being able to maintain altitude.NTSB DCA14FA058Accident · No injuriesClass 3 · FieldFinal reportEmbraer EMB145 - EP · Memphis, TNthe failure of the flight crew to adequately monitor the system for proper operation and manually activate the system during the flight in icing conditions. Contributing to the accident was the crew's limited training on the manual operation of the anti-ice…NTSB ERA14FA112Accident · 4 fatalField investigationFinal reportGulfstream AM Corp Comm Div 690 · Bellevue, TNThe 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 WPR14CA067Accident · Serious injuriesData collectionFinal reportBeech 58P · Kalispell, MTThe pilot's failure to maintain airplane control during the landing sequence.NTSB ANC14CA010Accident · Minor injuriesData collectionFinal reportBellanca 7GCBC · Soldotna, AKThe operation of the airplane by the uncertificated student pilot, his failure to recognize conditions conducive to structural icing, and subsequent decision to depart in conditions conducive to structural icing, resulting in a severe icing encounter and…NTSB WPR14FA094Accident · 5 fatalField investigationFinal reportBeech B36TC · Yellow Pine, IDThe 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.