This is a Voluntary Notification in accordance with
NUREG 1022 Section 2.7 of a controlled shutdown that can be considered to be of Generic Interest to the NRC and is not reportable otherwise per 10CFR50.72 or 10CFR50.73. Operations performed the controlled shutdown of Browns Ferry Unit 1 this morning in order to isolate and repair a small steam leak. The leak was determined to be from a Code Class 2 piping thermo-well located in the Unit 1 Steam Tunnel. The controlled shutdown was uneventful with all systems responding as expected. There was no impact to the health and safety of the public.
Units 2 and 3 were operating at 50% power when Unit 1 was shutdown and were not affected by this event.
The Senior NRC Resident Inspector has been notified of this Voluntary Notification.