Office for Nuclear Regulation

This website uses non-intrusive cookies to improve your user experience. You can visit our cookie privacy page for more information.

DRDL – Readiness Review and themed inspection

Executive summary

Purpose of Intervention

The intervention at the Devonport Royal Dockyard (DRDL) licensed site was undertaken as part of a series of planned interventions in accordance with the IIS Strategy and Plan.  Additionally, ONR inspectors undertook an inspection in order to provide assurance that DRDL had enhanced its arrangements for the safe control and operation of mobile and portal crane activities prior to resumption of these activities.

Interventions Carried Out by ONR

The intervention consisted of a themed inspection in relation to DRDL’s arrangements for control of work and an inspection of DRDL’s readiness to resume mobile and portal crane activities. The inspection sought to confirm that the licensee has made the necessary improvements to demonstrate that adequate arrangements are in place for the safe control of crane operations. 

The themed inspection on control of work involved a compliance inspection covering the adequacy of arrangements and their implementation in relation to LC10 (Training), LC12 (Duly authorised and other suitable qualified and experienced persons) and LC26 (control and supervision of operations) as they are applied to refuelling related activities.  The inspection was undertaken by the ONR Nominated Site Inspector, supported by 2 site inspectors and the Defence Nuclear Safety Regulator site inspector and involved examination of relevant licensee documentation, targeted discussions with relevant members of the licensee’s staff and a walkdown of the relevant facilities. The scope of inspection was derived from relevant ONR Technical Inspection Guides (NS-TAST-GD-027 Revision 5, NS-INSP-GD-026 Revision 3).

 The readiness inspection was undertaken by the ONR Nominated Site Inspector supported by 2 site inspectors, and involved examination of relevant licensee documentation and targeted discussions with relevant members of the licensee’s staff. The scope of inspection was derived from relevant ONR Technical Inspection Guides (NS-INSP-GD-026 Revision 3, NS-INSP-GD-028 Revision 5) and from the relevant Approved Code of Practice for the Lifting Operations and Lifting Equipment Regulations (L113 (Second edition) Published 2014).

Explanation of Judgement if Safety System Not Judged to be Adequate

N/A

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

The compliance arrangements for LC10, 12, and 26 as they are applied to conduct and supervision of refuelling activities were found on inspection to comply with legal duties and relevant good practice was met. No shortfalls were identified and an example of good practice was identified.  On this basis I have rated the inspection as green for each of these Licence Conditions.  

The ONR inspection team undertook a deep slice sample into the enhanced arrangements that will be implemented by DRDL in relation to the planning, organisation, control and supervision of mobile and portal crane activities. The inspection team concluded that DRDL has addressed the underlying causes of previous events and made the necessary enhancements for the restart of these mobile and portal crane operations in a safe and controlled manner.

Conclusion of Intervention

On the basis of the information provided and evidence obtained during this intervention, I concluded that the licensee has effective arrangements under LC10 (Training), LC12 (Duly authorised and other suitable qualified and experienced persons) and LC26 (control and supervision of operations) as they are applied to refuelling related activities.

On the basis of the information provided and evidence obtained during this intervention, I concluded that the licensee has made the necessary enhancements to demonstrate that adequate arrangements are in place for the safe control of refuel related crane operations. There are no regulatory issues to address before site releases their own internal Hold Points for the restart of mobile and portal crane activities.