# NTSB investigations: Lycoming GO-435C&D series, OR

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 SEA99LA088](https://openairdocs.org/ntsb/SEA99LA088.md): Ryan Navion B · Klamath Falls, OR · Accident · No injuries · Limited investigation · Final report · Jun 17, 1999 · N870DR · Substantial damage
  > The pilot's failure to reinstall the engine oil filler cap during preflight, resulting in engine oil loss and the necessity for an immediate landing.
- [NTSB SEA75FYC04](https://openairdocs.org/ntsb/SEA75FYC04.md): Grumman G-44 · Sandy, OR · Accident · No injuries · Closed · Jul 16, 1974 · N708C · Substantial damage
- [NTSB SEA70D0144](https://openairdocs.org/ntsb/SEA70D0144.md): Aero Comdr 520 · Salem, OR · Accident · No injuries · Closed · Dec 13, 1969 · N2622B · Substantial damage
- [NTSB SEA68D0094](https://openairdocs.org/ntsb/SEA68D0094.md): Navion B · North Bend, OR · Accident · No injuries · Closed · Jul 18, 1967 · N5316K · Substantial damage

## 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."eventStateOrRegion" = 'OR' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41521'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41521&state=OR

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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.