Notice on Petition for Inspection of Imported MOX Fuel Assemblies to be Used at Hamaoka Nuclear Power Station, Reactor No. 4 (for second production)

The procedure for petition for inspection of imported fuel assemblies is as follows: pre-production plans, policies and so on are written up at the time of filing, then when production of the fuel assemblies is complete, an application is made that reflects the results of inspection and quality assurance initiatives during production.

The main content of the current application is as follows.

1. Inspection results

In the inspection of fuel sheath tubes and other components as well as pellets, fuel rods and fuel assemblies, we found that these items provided the quality required to operate safely and stably, including those items unique to MOX fuel, and these results have been added to the petition.

2. Quality assurance initiative results

The check of MOX fuel production status by our staff member stationed at MELOX plant during production, audits of production processes by a separately dispatched audit team, and other checks indicated there were no problems with quality assurance initiatives, and so the following items were added to the petition.

• Inspection of each production process and check of production status as performed by staff member stationed at MELOX plant
• Audit of each production process by audit team (process audit)
• Check of Chubu Electric's auditing by third-party organization (Bureau Veritas), etc.