# NTSB Accident CHI05FA048
> **Beech S35** · 2004-12-25 · Herman, WI, USA · FATL
## Event
- **NTSB number:** CHI05FA048
- **Event ID:** 20041228X02038
- **Type:** Accident
- **Date:** 2004-12-25
- **Location:** Herman, WI, USA
- **Coordinates:** 44.267955, -89.617012
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** Beech
- **Model:** S35
- **Registration:** N5631K
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The installation of the improper cylinder base packing seals by maintenance personnel resulting in the loss of lubriation and subsequent failure of the number four connecting rod/bearing.  A factor associated with the accident was the trees that the airplane contacted during the forced landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI05FA048) · AI Analytics · CC0 1.0*