Hi @ALL, Disclaimer: The names, events, locations, and circumstances in this write up are fictitious & any resemblance to real persons living or dead, events, locations, and circumstances is purely coincidental. The mock up situation considered is something that could happen in real life and can be a source of learning for anyone interested in root cause analysis using the Fault Tree Analysis technique. Using Root Cause Analysis, we will investigate together the given life-like accident involving truck road rollover reportedly caused by one of the vehicle main part failure and build a Fault Tree Analysis (FTA) chart to prove the report. We will briefly collate/discuss accident data, details collection, casual factors charting, and provide two or more recommendations to prevent such accident from re-occurring. Cheers, Rufran