Office for Nuclear Regulation

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Heysham 1 - Planned 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

The nominated site inspector carried out planned Licence Condition (LC) compliance inspections against LC10 - training, LC12 - duly authorised and other suitably qualified and experienced persons and LC28 - examination, inspection, maintenance and testing. I also attended a routine meeting with the station safety representatives.

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

The purpose of the LC10 and LC12 intervention was to review progress on ONR issue 3662 raised during the last LC10 & LC12 compliance inspection undertaken in July 2015. The issue required the station to review the training for all safety significant roles to ensure that all essential training has been completed or an appropriate justification is in place.

I sampled the training database to ensure that all staff in safety significant roles have completed their essential training. Where staff had not completed the essential training, I ensured that this was being suitably managed, i.e. an appropriate justification had been produced or they no longer undertook that role. From the sample I inspected I am satisfied that the station has achieved the target of 100% managed compliance for safety significant roles and has a suitable ongoing process to maintain this. Consequently I consider that Issue 3662 has been addressed and will be recorded as closed.

During this intervention I noted that this process is contained within a number of company procedures and the visibility of it could be improved. Consequently I raised a level 4 issue, 4597, which requires EDF to ensure that the process to meet the 100% managed compliance target is suitably documented and referenced.

Notwithstanding this minor issue, I judged that the arrangements for LC10 and LC12, and their implementation met the required standard and therefore assigned an intervention rating of Green.

The purpose of the LC28 intervention was to review progress on two historical issues, ONR issues 82 and 83. Issue 82 related to the number of station defects and required the station to introduce measures to reduce and sustain the number of defects to within a target level. Issue 83 related to the backlog of maintenance and required the station to introduce measures to reduce and sustain the maintenance backlog.

During this intervention I reviewed the processes that the station have put in place to address these two issues and judged that the station is taking appropriate action to address both of these issues. Issue 82 and issue 83 will therefore be recorded as closed. I will continue to monitor these areas as part of my routine inspection activities.

I also attended a routine meeting with the station safety representatives to discuss any safety concerns that the staff had around the station and to feedback the findings from my previous interventions at the station. No significant safety concerns were raised.

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 of Heysham 1 power station as set out in the Integrated Intervention Strategy, which will continue as planned.