"Inspections on Heysham 2-7 so far suggest that the unit will be returned to service in the short term," the spokeswoman was quoted by Reuters as saying.
"We are still completing the inspection and may take the opportunity to carry out additional maintenance," she continued.
The spokeswoman added that if extra maintenance work was carried out on the reactor it would probably not significantly prolong the shut down. The Heysham plant is located in north-west England.
British Energy brought back two of its nuclear power stations into operations this Spring after closing in the autumn for boiler repairs. These were the Hinkly Point plant in south-west England and the Hunterston reactor in Scotland.
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