# NTSB investigations: Continental IO-520-F, 1997

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 ANC97FA155](https://openairdocs.org/ntsb/ANC97FA155.md): Cessna 207A · Twin Hills, AK · Accident · 1 fatal · Field investigation · Final report · Sep 26, 1997 · N9984M · Destroyed
  > Improper in-flight planning/decision by the pilot, and his failure to maintain sufficient altitude over mountainous terrain. Factors related to the accident were downdraft conditions, mountainous/hilly terrain, and the use of over-the-counter medications.
- [NTSB ANC97LA022](https://openairdocs.org/ntsb/ANC97LA022.md): Cessna 207A · Tununak, AK · Accident · Serious injuries · Limited investigation · Final report · Jan 17, 1997 · N9603M · Substantial damage
  > the pilot's decision to continue VFR flight into instrument meteorological conditions (IMC), and his failure to maintain clearance from rising terrain. Factors associated with the accident were: low ceiling, fog, rising terrain, and the pilot's inadequate…

## 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") = 1997
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17237'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=17237&year=1997

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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.