Safety injection tank (
SIT) isolation valve (
2CV-5043-2) has a drain pipe under the valve body with a welded cap. The welded cap has a small crack with
boric acid residue. The welded cap does not have any threads and is considered
RCS boundary leakage. There is a
check valve between the
reactor coolant system (
RCS) and the
SIT Outlet valve. The crack will be repair welded prior to coming out of the 2R16 outage.
The Licensee has notified the NRC Resident Inspector.
- * * RETRACTED EVENT AT 1432 EST ON 12/01/03 FROM SCHEIDE TO ROTTON * * *
This report is being made to retract a notification made at 1715 CDT on 10/02/03 (EN# 40216.)
The notification documented the identification of a small amount of boric acid residue on a drain line attached to a Safety Injection Tank isolation valve (2CV-5034-2). The report stated that the indication was within the Reactor Coolant System boundary. However, subsequent review of the condition determined that the indication was not within the Reactor Coolant System boundary since it was isolated from the Reactor Coolant System by an operable check valve. Therefore, the condition did not represent a serious degradation of a principal safety barrier.
Note; The drain line is 3/4 inch diameter stainless steel.
The licensee notified the NRC Resident Inspector. Notified Claude Johnson - R4DO.
