# NTSB investigations, 2019: 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 CEN20LA028](https://openairdocs.org/ntsb/CEN20LA028.md): BAE BAE125 · Detroit, MI · Accident · No injuries · Class 3 · Limited · Final report · Dec 3, 2019 · N469RJ · Substantial damage
  > The 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 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 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…

## 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 year(c."eventDate") = 2019
  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?year=2019

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