Office for Nuclear Regulation

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Heysham 2 - LC30 Inspection

Executive summary

Purpose of Intervention

The purpose of this intervention was to confirm the effective implementation of the outage management arrangements for LC30, Periodic Shutdown, during the Heysham 2 Reactor 7 2018 statutory outage. This was part of the permissioning activities in support of the decision for the consent to restart the reactor following its outage.

Interventions Carried Out by ONR

I, the project inspector for the Heysham 2 Reactor 7 2018 statutory outage observed the conduct of the Outage Control Centre (OCC) and a sample of the daily outage meetings.  The mid-outage review meeting was also attended.

The intervention was performed in line with ONR's guidance requirements (as described in our technical inspection guides) in the areas inspected.

Explanation of Judgement if Safety System Not Judged to be Adequate

Not applicable: No safety system inspection was undertaken during this intervention.

Key Findings, Inspector's Opinions and Reasons for Judgements Made

I considered the overall management of the outage through the Outage Control Centre to be effective and found the OCC to be running efficiently and dealing effectively with the emergent outage issues.

I sampled the routine daily outage meetings over a two day period and observed open discussions on the various outage activities and suitable challenge raised where required. There was evidence of appropriate focus on emergent safety challenges and contingency planning for potential problems identified at discovery milestones.

NGL considered the outage to be progressing well with no significant technical challenges encountered to date.  I found the mid-outage meeting to be an effective review of the outage progress to date and provided confidence in how the outage was being managed effectively and safety was being maintained.

Conclusion of Intervention

Following the LC30 compliance inspections I the judged that compliance with LC30 met ONR’s expectations and hence assigned an inspection rating of Green.

There were no findings from this inspection that could significantly undermine nuclear safety.  At present, no additional regulatory action is needed over and above the planned interventions of Heysham 2 power station as set out in the integrated intervention strategy, which will continue as planned for the R7 periodic shutdown.