The repairwork on elimination of the reasons of the block stop called by action ofautomatic protection the day before, on December 9, was carried out on thepower unit No. 1 of the Kursknuclear power plant on December 10, 2013.

Violationof integrity of one of technical devices was the pulse tube which is a part of thesystem, creating automatic protection became, the reason of automatic equipmentoperation.

Oncompletion of the repair work according to requirements of production schedulesand maintenance instructions the power unit will be switched on into a network.

This eventis classified previously by the level “out of a scale” by the Internationalrating scale of nuclear events of INES, what means that it is not essential tosafety.

There are power units No. 1 and No. 3 in work at themoment. They work at the capacity established by the dispatching schedule. Onpower units No. No. 2 and 4 planned repairs are carried out.

The radiation background on the nuclear power plantand around its arrangement is at the level corresponding to normal operation ofpower units, and doesn't exceed natural background values.

Current information about a radiation situationnear the nuclear power plant in Russiaand other objects of the nuclear industry is provided on a site www.russianatom.ru.