# NTSB investigations, CO: 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 GAA20CA075](https://openairdocs.org/ntsb/GAA20CA075.md): Cessna 182 · Broomfield, CO · Accident · No injuries · Data collection · Final report · Nov 6, 2019 · N97596 · Substantial damage
  > The pilot’s inadvertent flight into icing conditions, which resulted in the accumulation of structural icing and an aerodynamic stall.
- [NTSB CEN14IA139](https://openairdocs.org/ntsb/CEN14IA139.md): Cirrus Design SR22 · Gunnison, CO · Incident · No injuries · Incident investigation · Final report · Feb 14, 2014 · N18DN · Minor damage
  > The 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 CEN14FA032](https://openairdocs.org/ntsb/CEN14FA032.md): Glasair Aviation USA Sportsman GS-2 · Castle Rock, CO · Accident · Serious injuries · Field investigation · Final report · Oct 29, 2013 · N535SP · Substantial damage
  > The pilot’s improper decision to continue flight into known icing conditions, which adversely affected the airplane’s performance and resulted in a loss of airplane control.
- [NTSB CEN13CA005](https://openairdocs.org/ntsb/CEN13CA005.md): Piper PA-24-250 · Colorado Springs, CO · Accident · No injuries · Data collection · Final report · Oct 5, 2012 · N6661P · Substantial damage
  > The pilot’s failure to maintain airspeed during the landing with known structural icing, which resulted in the airplane’s stall. Contributing to the accident was the pilot’s failure to divert to an area where conditions were not conducive to icing.
- [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 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 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.

## 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."eventStateOrRegion" = 'CO' 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
```

This list as a web page: https://openairdocs.org/ntsb-events/210/sequence?state=CO

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