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Picture for Control of Welding Rejection Rate and NDT Backlog in MEGA Project
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Control of Welding Rejection Rate and NDT Backlog in MEGA Project

Product Number: MPWT19-15302
Author: Abdullah H. Shaiban, Saad A. Aldossari, Yahya M. Haydar, Naif S. Alrasheedy
Publication Date: 2019
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This paper provides a real case study in regard to controlling the welding repair rate and NDT backlog in a company mega-project assigned to a new contractor. This case study shows the improvements in both KPIs, through the utilization of various quality and improvement tools, such as root cause analysis (Fishbone and Pareto chart), brainstorming, and PDCA cycle. The collaborative efforts between the client and contractor, including the welding and NDT subcontractors, resulted in reducing the WRR from 11.04% to below 5% (the set KPI). The NDT backlog was also controlled and reduced from 2500 joints to below 600 joints (less than one week production).
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