# NTSB investigations, 2012: 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 WPR13FA041](https://openairdocs.org/ntsb/WPR13FA041.md): American AA-1 · Morgan, UT · Accident · 1 fatal · Field investigation · Final report · Nov 15, 2012 · N5642L · Substantial damage
  > The pilot's inadequate preflight inspection, which resulted in frost remaining on the airplane's surfaces and led to its inability to produce enough lift to clear rising terrain.
- [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 ANC12CA115](https://openairdocs.org/ntsb/ANC12CA115.md): Cessna 182A · Port Lions, AK · Accident · No injuries · Data collection · Final report · Oct 1, 2012 · N2028G · Substantial damage
  > The pilot's decision to take off with ice- and snow-contaminated wings.

## 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") = 2012
  AND c."mKey" IN (SELECT e.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e."isDefiningEvent" AND e."tier2Number" = '210')
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/210/cases?year=2012

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