Office for Nuclear Regulation

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EDF Energy - LC17 Inspection of Intelligent Customer Arrangements Focussing on the Technical Support Alliance (TSA)

Executive summary

Purpose of Intervention

This was a planned LC17 inspection carried out at EDF Nuclear Generation (NG) HQ at Barnwood focussing on intelligent customer oversight arrangements.

Interventions Carried Out by ONR

I carried out a planned compliance inspection against Licence Condition 17 (LC17) ‘Management Systems' focussing on intelligent customer oversight to determine the adequacy of EDF Nuclear Generation's arrangements for managing specialist contractors. Contractors from NGL's ‘Technical Support Alliance (TSA)' and the contractor support for DSEAR (Dangerous Substances and Explosive Atmospheres Regulations 2002) were used as samples.

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

I found that compliance with LC17 Management Systems for the areas inspected was adequate. (IIS Rating Green). The examples I reviewed from the TSA were Probabilistic Safety Analysis (PSA) support, specialist graphite support for an ongoing project and Human Factors (HF)

My Key findings are given below:

Conclusion of Intervention

From the areas inspected I judged that compliance with the NGL Management Systems in relation to intelligent Customer Oversight arrangements is adequate. No significant issues were raised and I rated LC17 (Management Systems) Green.


I recommend that the inspection and TSA arrangements are discussed further at the next Level 4 meeting with the Supply Chain Team.