1. Piping and Pipe Support Inspection Plan: Tetra develops a piping and pipe support inspection plan, including details about inspection techniques and decisional criteria, prior to travelling to the site. This can include generating drawings that are used for rapid component identification in the field. In addition, the following topics are covered in the plan:

• Fitness for Service (including cracked and thinned piping, damaged or out of range supports).
• Repairs (including Piping Design Changes and Modifications, Welding, Leak and Pressure Tests)
• Failure Analysis (including guidance on when to perform and root cause analysis)

2. On-Site Inspection. Tetra performs walkdown inspections of the piping systems in accordance with the inspection plan. The purpose is to record the support settings and condition, look for damaged pipe or insulation and verify conformity to design. The inspections should be performed for both hot and cold conditions.

3. Inspection Report with Software. The inspection report is delivered with a customized software tool known as PipeVue that was developed by Tetra Engineering. PipeVue comprises a database containing all the inspection data and observations as well as a visualisation engine for displaying 3-D views of the inspected piping runs. The client can use this tool to support maintenance activities and to plan for, or store data from, future inspections.

4. Options and Extensions

• Flow Accelerated Corrosion Assessment for Feedwater Piping
• Stress / Flexibility Analysis