Office for Nuclear Regulation

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Heysham 1 - LC14 Compliance Inspection

Executive summary

Purpose of intervention

The purpose of this intervention was to carry out licence compliance inspections at the EDF Energy Nuclear Generation Limited’s (NGL’s) Heysham 1 power station in line with the planned inspection programme contained in the Heysham 1 Integrated Intervention Strategy (IIS) for 2016/17.

Interventions Carried Out by ONR

I, the nominated site inspector carried out a planned Licence Condition (LC) compliance inspection against LC14 - safety documentation. 

Explanation of Judgement if Safety System Not Judged to be Adequate

No safety system inspection was undertaken, hence this is not applicable.

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

 Prior to this inspection, I carried out a review of the company LC14 procedures against the relevant ONR guidance documents for these licence conditions.  I judged that these procedures provide adequate arrangements to satisfy the requirements of LC14.

It was noted that the corporate arrangements for writing or amending safety cases follow the same process as adopted for modifications under LC22.  The LC22 arrangements were inspected in November 2015 and August 2016 and were judged to meet the required standard with no significant issues identified.

In order to judge the adequacy of the implementation of these arrangements, I sampled two Engineering Change (EC) requests; one designated at category one and one at category two.  In both cases I verified that the safety case process had been followed and the production, categorisation, verification and Independent Nuclear Safety Assurance (INSA) review of the safety case had been correctly undertaken.  I also verified that in the case of the category one submission that advice had been sought from the nuclear safety committee.

On the basis of the areas sampled I judged that compliance with LC14 followed the relevant company procedures and met the required standard and therefore I have rated this intervention against LC14 as Green.

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

Conclusion of Intervention

From the evidence gathered during this intervention, I do not consider there to be any matters that have the potential to impact significantly on nuclear safety.   

At present, no additional regulatory action is needed over and above the planned interventions at Heysham 1 power station as set out in the Integrated Intervention Strategy, which will continue as planned.