---
type: "decision"
id: "2026-04-20-fit-vibration-sensors-on-all-four-spindles-of-line-3-so"
title: "Fit vibration sensors on all four spindles of Line 3, so bearing wear shows up before a…"
date: "2026-04-20"
projects: ["projects/line-3-retrofit"]
people: ["people/sandra-meier", "people/lukas-brunner", "people/thomas-huber", "people/nina-frei"]
source: "sources/2026-04-20-line-3-retrofit-planning"
tags: ["decision"]
---

# Fit vibration sensors on all four spindles of Line 3, so bearing wear shows up before a…

Decided on 20.04.2026 in [[sources/2026-04-20-line-3-retrofit-planning|Line 3 retrofit: planning meeting]].

Fit vibration sensors on all four spindles of Line 3, so bearing wear shows up before a breakdown.

## Why

- two of last year's unplanned stops were bearing failures that Nina Frei could hear days before they happened.

## Project

- [[projects/line-3-retrofit|Line 3 retrofit]]

## People

- [[people/sandra-meier|Sandra Meier]], CFO
- [[people/lukas-brunner|Lukas Brunner]], Head of Production
- [[people/thomas-huber|Thomas Huber]], Quality Manager
- [[people/nina-frei|Nina Frei]], Senior Maintenance Engineer