Office for Nuclear Regulation

Heysham 2 – Inspection ID: 52702

Executive summary

Date(s) of inspection:

  • May 2023

Aim of inspection

LC28 requires the licensee to make and implement adequate arrangements for the regular and systematic examination, inspection, maintenance and testing of all plant which may affect safety. For any plant or process that is shut down for the purpose of enabling these activities, LC30 requires ONR to provide consent before said plant or process is started up again.

The aims of this inspection were:

  • To provide regulatory confidence in the implementation of the Heysham 2 S12 R8 Outage Intentions Document in relation to structural integrity.
  • To provide evidence to inform the ONR decision relating to the issue of a Licence Instrument for a Consent for return to service of Reactor 8 at Heysham 2 on completion of the work undertaken during the outage.

Subject(s) of inspection

  • LC28 – Examination, inspection, maintenance and testing – Rating: Green

Key findings, inspector’s opinions and reasons for judgement made

I was satisfied with the experience demonstrated, processes referenced and judgements made by station in relation to LC28 from a structural integrity perspective and I judge that the station were compliant with their arrangements to meet LC28 during the time of the inspection.

We noted some aspects to follow up which will be reviewed in the follow up assessment report. In particular, it was reported by station there is currently no corrosion coordinator in place, which is a requirement under their arrangements. At the time of our visit no internal vessel inspections (metallic components) had been performed, so this will also be followed up to determine appropriate sentencing of any non-conformances.


I judged the site demonstrated compliance with LC28 during the activities sampled during our site visit, I have therefore rated the inspection green.