Office for Nuclear Regulation

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Barrow - LC7 Inspection

Executive summary

Purpose of Intervention

This intervention, conducted at BAE Systems Barrow site was undertaken as part of the 2017/18 intervention plan and propulsion sub-division strategy.

Interventions Carried Out by ONR

I conducted a Licence Condition(s) (LC) 07 (“Incidents on site”) compliance inspection, focused on the implementation of the licensee’s arrangements for the licence condition(s). Following the last inspection, BAE has made significant changes to its arrangements; as such this inspection looked at the full scope of LC7 arrangements including: notification, recording, investigating and reporting of such events occurring on site. The inspection also considered management of corrective actions and utilisation of learning material.

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

The inspection also considered IAEA guidance NS-G-2.11: "A system for the feedback of experience from nuclear events in nuclear installations".

Explanation of Judgement if Safety System Not Judged to be Adequate

Not applicable.

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

Significant work has been completed by the licensee in responding to the findings from the previous inspection, and work continues to progress in-line with an improvement plan.

The following findings were identified during the compliance inspection and have been put forward to ONR for consideration as a level 4 regulatory issue:

Based on the sampling that I undertook as part of the inspection, I have confidence that BAE will continue to deliver the required enhancements in a timely manner. This confidence is built on the self-identification that BAE has already demonstrated, and the delivery to date of improvements to the reporting arrangements.

Conclusion of Intervention

Based on my inspection of the licensee’s arrangements for compliance with licence condition 07, I have identified areas of compliance where shortfalls still exist against relevant good practice. Whilst there are elements of good practice, the arrangements do not demonstrate compliance across all of the requirements of LC 07.

Whilst a rating of AMBER would typically require a level 3 regulatory issue to be raised, I consider this to be disproportionate as the licensee has self-identified many of the inspection findings and continues to work to correct these. I therefore propose a level 4 regulatory issue to allow the work to be monitored through routine regulatory business.