Office for Nuclear Regulation

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Routine planned inspection, incident and LOLER follow-up a Heysham 1

Executive summary

Purpose of Intervention

The purpose of this intervention was to undertake regulatory inspections at EDF Energy Nuclear Generation Limited (NGL) Heysham 1 Power Station in accordance with ONR's Integrated Intervention Strategy (IIS) 2017-2018 for the Operating Reactors Sub-Division.

This report covers the nuclear safety-related inspection of Heysham 1 power station, which was undertaken as part of routine planned and reactive interventions.

Interventions Carried Out by ONR

As part of this intervention, I (the nominated site inspector) carried out interventions against licence condition LC 7 - Incidents on the site and LC 30 - Periodic shutdown. An ONR specialist mechanical engineering inspector supported a follow visit in relation to the Lifting Operations and Lifting Equipment Regulations 1998 (LOLER). During this intervention I also undertook a number of information gathering meetings with the licensee to review regulatory matters and topics.

Explanation of Judgement if Safety System Not Judged to be Adequate

No system based inspection undertaken hence, not applicable to this intervention.

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

From the evidence I sampled I am satisfied that recent incidents reported on the site are being adequately recorded, investigated and reported. Event recovery actions on the fixed jet fire fighting system are progressing satisfactorily with suitable oversight and controls in place. No matters of concern were found that I consider require additional regulatory action at this stage. I have rated this intervention as GREEN on the basis of the prompt and appropriate actions taken by the Licensee in response to this incident and the investigation instigated.

From my sampled intervention of the arrangements for periodic shutdown of Unit 1, I am satisfied that statutory examination, inspection, maintenance and testing of plant is being undertaken in accordance with the requirements of its plant maintenance schedule.

From the evidence provided by station personnel involved in lifting operations my opinion is that satisfactory progress is being made to resolve the LOLER compliance breach identified by ONR late in 2016.

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 information gathered and evidence obtained during this intervention, no matters have been identified that are likely to have significant impact on nuclear safety on the station at this time. Therefore I consider that no additional regulatory action arising from this visit is necessary currently, and the interventions for Heysham 1 power station, set out in the integrated intervention strategy, should continue to be implemented as planned.