# NTSB investigations: Continental IO-520-F, 1990

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 ANC90FA101](https://openairdocs.org/ntsb/ANC90FA101.md): Cessna 207A · Aialak Bay, AK · Accident · 5 fatal · Field investigation · Final report · Jun 25, 1990 · N9985M · Destroyed
  > The pilot-in-command's attempt to fly under visual flight rules while in instrument meteorological conditions. Contributing factors to the accident were the low ceiling and surrounding mountainous terrain.
- [NTSB ANC90LA090](https://openairdocs.org/ntsb/ANC90LA090.md): Cessna 206U · Taku, AK · Accident · No injuries · Limited investigation · Final report · Jun 17, 1990 · N9735Z · 2 aircraft · Minor damage
  > Failure of the pilot of N9735Z (C-206U) to see and avoid N756EJ (C-206G), and failure of company management to establish adequate separation procedures.
- [NTSB ANC90LA026](https://openairdocs.org/ntsb/ANC90LA026.md): Cessna 207A · Nondalton, AK · Accident · No injuries · Limited investigation · Final report · Jan 12, 1990 · N9720M · Substantial damage
  > Improper planning/decision by the pilot. Factors related to the accident were: inadequate positioning of the temporary runway markers, snow covered runway/terrain conditions, partial whiteout condition, and the snow berms at the edges of the runway.

## 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") = 1990
  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=1990

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