# NTSB investigations: Kaman HH-43F, WA

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 SEA06LA162](https://openairdocs.org/ntsb/SEA06LA162.md): Kaman HH-43F · Metaline Falls, WA · Accident · 1 fatal · Limited investigation · Final report · Aug 18, 2006 · N559D · Destroyed
  > The failure of the left-hand cross-shaft input internal spline while the helicopter was in a hover, which resulted in the loss of gear box timing, in-flight blade contact and separation, and the subsequent loss of control and impact with a log deck.
- [NTSB SEA93LA105](https://openairdocs.org/ntsb/SEA93LA105.md): Kaman HH-43F · Anatone, WA · Accident · 1 fatal · Limited investigation · Final report · May 12, 1993 · N846D · Destroyed
  > Fatigue failure of the rotor transmission drive system, resulting from the improper certification/approval of the aircraft modification by the federal aviation administration.

## 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" = 'WA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4800708'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=4800708&state=WA

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