Challenge
SF6 gas leaks were a recurring non-conformance in RMU production, causing rework.
Result
Supplier performance rose from 2.5 to 3.7 sigma, alongside the team’s 81% cut in SF6 leaks.
My role
- Operational quality engineer on a cross-functional Lean Six Sigma team, following the DMAIC cycle.
- Analyzed non-conformance reports and quality data to build the leakage baseline.
- Set up new data collection points and built the daily Power BI report that tracked them.
- Audited the assembly process and validated trial weld samples against their standards.
- Contributed to the root-cause analysis and the PFMEA that targeted preventive controls at the highest-risk steps.
- Evaluated suppliers on site and followed up their corrective actions.
Methods & standards
- DMAIC
- Root-cause analysis
- PFMEA
- Power BI
- Supplier evaluation





