Office for Nuclear Regulation

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Hartlepool Power Station - Structural Integrity Compliance Inspection of Licence Condition 28 during Reactor 1 2014 Periodic Shutdown

Executive summary

Purpose of intervention

This report records the findings of my intervention visit to Hartlepool Nuclear Power Station during the 2014 reactor 1 (R1) Periodic Shutdown.  The intervention was undertaken to confirm the adequacy of the work conducted by the licensee to comply with the requirements of Licence Condition (LC) 28, examination, inspection, maintenance and testing.  I was accompanied on my visit by two additional ONR (Office for Nuclear Regulation) structural integrity inspectors.

Interventions Carried Out by ONR

I undertook on-site meetings and plant inspections with relevant staff from the licensee, EDF Nuclear Generation (NGL), to determine the adequacy of the work being undertaken on R1 in complying with the requirements of LC28.  I concentrated my inspection on items I judged important to Nuclear Safety. I reviewed the following inspection sample as part of my intervention:

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

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

At the time of my inspection, the outage was progressing to plan, with no potential significant issues identified from the work streams that I had sampled. Work associated with the boiler spine recovery project is not within the scope of this intervention and is being dealt with elsewhere.

Conclusion of Intervention

From the sample of inspections that I have assessed during this intervention, it is my opinion that the licensee is conducting inspections in line with the outage intents document and associated inspection specifications. The visual and non-destructive testing (NDT) inspections conducted so far have not raised any nuclear safety significant issues of concern and the licensee is adequately managing any defects or anomalies identified.

I will follow up sentencing of the inspection results by monitoring the outage assessment panel minutes and review the outcome as part of my structural integrity assessment report; this is required to inform the ONR assessment decision for return to service.  I do not consider any of the items that I have reviewed as part of this inspection are likely to affect the return to service following the Hartlepool R1 2014 periodic shutdown.

Based on the items sampled during my intervention, I conclude that the licensee has performed the work to an adequate standard, and is following internal procedures and guidance appropriately. I judge the overall intervention IIS rating for this intervention to be 3 (adequate).