The purpose of this intervention was to follow up an incident at EDF Energy Nuclear Generation Limited (NGL) Hartlepool Nuclear Power Station's. The incident involved a small fire on a diesel engine within the high pressure back up cooling system (HPBUCS) house. The fire involved the ignition of fuel oil during post maintenance testing.
An ONR internal hazards specialist inspector and the nominated site inspector reviewed the licensee's response to the fire in the HPBUCS house. The status, suitability and progress of the Licensee's own investigation was considered and whether this incident met the criteria to carry out a formal investigation.
The intervention was performed in line with ONR's guidance requirements (as described in our technical inspection guides) in the areas inspected.
Not applicable - no system based inspections were performed during this intervention.
The small fire in the HPBUCS house at Hartlepool power station was found to have no nuclear safety consequences and the intervention did not identify any significant breach of site licence conditions.
Some minor shortcomings were identified regarding the licensees response to the incident and the return to service documentation, however I am satisfied that the incident does not meet ONR's investigation criteria.
The licensee is judged to be dealing with this fire incident appropriately and is applying its corrective actions programme to implement lessons learned and prevent a reoccurrence. This incident does not meet ONR's investigation criteria and the issue raised during this intervention will be followed up via the normal planned regulatory interactions.
There are no findings from this inspection that could significantly undermine nuclear safety nor require a change to the planned interventions and inspections of Hartlepool power station.