# NTSB Accident CHI92LA137
> **BELL 47-G2A** · 1992-04-30 · DOUSMAN, WI, USA · SERS
## Event
- **NTSB number:** CHI92LA137
- **Event ID:** 20001211X14408
- **Type:** Accident
- **Date:** 1992-04-30
- **Location:** DOUSMAN, WI, USA
- **Coordinates:** 43.010726, -88.469551
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** BELL
- **Model:** 47-G2A
- **Registration:** N52HB
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE IN-FLIGHT LOSS OF THE SWASH PLATE DRIVE LINK BOLT WHICH ALLOWED THE SWASH PLATE DRIVE ASSEMBLY TO DISCONNECT.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI92LA137) · AI Analytics · CC0 1.0*