NTSB investigations, AK
13 cases where the sequence of events included Structural icing.
Cases per year
| 2008 | 1 |
|---|---|
| 2009 | 1 |
| 2010 | 1 |
| 2011 | 1 |
| 2012 | 2 |
| 2013 | 2 |
| 2016 | 1 |
| 2017 | 1 |
| 2019 | 1 |
| 2021 | 1 |
| 2023 | 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.\"eventStateOrRegion\" = 'AK' AND c.\"eventCountry\" = 'USA'
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"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."eventStateOrRegion" = 'AK' AND c."eventCountry" = 'USA' 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
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 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 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 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 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 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 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 ANC13CA107Accident · No injuriesData collectionFinal reportPiper PA 18-150 · Wasilla, AKThe pilot's improper preflight inspection, and failure to remove heavy frost from the airplane prior to attempting a takeoff.NTSB ANC12CA115Accident · No injuriesData collectionFinal reportCessna 182A · Port Lions, AKThe pilot's decision to take off with ice- and snow-contaminated wings.NTSB ANC12IA024Incident · No injuriesIncident investigationFinal reportBombardier Learjet 35A · Anchorage, AKThe flightcrew's loss of visual reference to the runway after encountering severe in-flight icing conditions, which resulted in a loss of control while landing and exceedence of the capabilities of the airplane's windscreen anti-ice systems. Contributing to…NTSB ANC12CA016Accident · Minor injuriesData collectionFinal reportCessna 207A · Kwigillingok, AKThe pilot’s decision to continue visual flight into instrument meteorological conditions with moderate icing, which resulted in structural icing and an aerodynamic stall.NTSB ANC10LA019Accident · No injuriesLimited investigationFinal reportCessna 208B · Kwigillingok, AKThe pilot's decision to take off with ice-contaminated wings in freezing rain and mist, which resulted in an aerodynamic stall.NTSB ANC09LA038Accident · Minor injuriesLimited investigationFinal reportCessna TU206 · Bethel, AKThe pilot’s failure to remove visible frost from the wings during the preflight inspection, and his failure to maintain adequate airspeed to avoid a stall. Contributing to the accident were conditions conducive to structural icing/frost.NTSB ANC09LA012Accident · Minor injuriesLimited investigationFinal reportCessna 207 · Napaskiak, AKThe pilot's continued flight into adverse weather and icing conditions, and his failure to maintain sufficient airspeed to avoid a stall, resulting in a loss of control and in-flight collision with terrain while on an approach to land.