# Final NTSB investigations: Dehavilland CARIBOU DHC-4A

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 ANC97FA024](https://openairdocs.org/ntsb/ANC97FA024.md): de Havilland DHC-4A · Sparrevohn, AK · Accident · 1 fatal · Field investigation · Final report · Jan 30, 1997 · N702SC · Destroyed
  > loss of the right engine propeller control oil, which led to an overspeed of the right engine and propeller, and necessitated a shut-down of the right engine; and failure of the pilot to maintain adequate altitude/distance from terrain during visual approach…
- [NTSB ANC96LA115](https://openairdocs.org/ntsb/ANC96LA115.md): de Havilland DHC-4 · New Stuyahok, AK · Accident · No injuries · Limited investigation · Final report · Aug 2, 1996 · N800NC · Substantial damage
  > The collapse of the nosegear precipitated by the failure of the hydraulic nosegear drag strut locking actuator.

## 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."completionStatus" = 'Completed'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('2800304'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=2800304&status=final

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