# NTSB Accident SEA93LA105
> **KAMAN HH-43F** · 1993-05-12 · ANATONE, WA, USA · FATL
## Event
- **NTSB number:** SEA93LA105
- **Event ID:** 20001211X12472
- **Type:** Accident
- **Date:** 1993-05-12
- **Location:** ANATONE, WA, USA
- **Coordinates:** 46.079105, -117.26947
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** KAMAN
- **Model:** HH-43F
- **Registration:** N846D
- **FAR Part:** 133
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

FATIGUE FAILURE OF THE ROTOR TRANSMISSION DRIVE SYSTEM, RESULTING FROM THE IMPROPER CERTIFICATION/APPROVAL OF THE AIRCRAFT MODIFICATION BY THE FEDERAL AVIATION ADMINISTRATION.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA93LA105) · AI Analytics · CC0 1.0*