# NTSB investigations: Colvin O-520-EXP

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 ANC97LA060](https://openairdocs.org/ntsb/ANC97LA060.md): Cessna 180K · Soldotna, AK · Accident · No injuries · Limited investigation · Final report · Apr 21, 1997 · N64337 · Substantial damage
  > the pilot's inadequate compensation for cross conditions and failure to maintain directional control of the airplane. A factor relating to the accident was: the variable/gusty/crosswind condition.
- [NTSB ANC96LA003](https://openairdocs.org/ntsb/ANC96LA003.md): Cessna 180K · Cold Bay, AK · Accident · No injuries · Limited investigation · Final report · Oct 7, 1995 · N64337 · Substantial damage
  > the pilot's selection of an unsuitable area/terrain for landing. The submerged sandbar was a related factor.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('16900'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=16900

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
