Morning Report for April 9, 2002
Headquarters Daily Report APRIL 09, 2002 *************************************************************************** REPORT NEGATIVE NO INPUT ATTACHED INPUT RECEIVED RECEIVED HEADQUARTERS X REGION I X REGION II X REGION III X REGION IV X PRIORITY ATTENTION REQUIRED MORNING REPORT - REGION II APRIL 9, 2002 Licensee/Facility: Notification: Carolina Power & Light Co. MR Number: 2-02-0005 Harris 1 Date: 04/09/02 Raleigh,North Carolina Dockets: 50-400 PWR/W-3-LP Subject: GAS ACCUMULATION IN THE CHARGING/SAFETY INJECTION PUMP COMMON SUCTION HEADER - HARRIS NUCLEAR STATION Reportable Event Number: N/A Discussion: On April 3, 2002, while conducting a preventive maintenance procedure to check for gas accumulation in the emergency core cooling system piping from the licensee identified that a section of the common suction header from the refueling water storage tank (RWST) to the charging/safety injection pumps (CSIPs) was filled with gas. The licensee estimated there was about 3.5 cubic feet of gas in the pipe. This piping is a high point above the CSIP rooms and has no vent valve. The licensee vented the gas by loosening the cap to a check valve located in this piping. The licensee declared both CSIPs inoperable when the gas was identified. The pumps were declared operable when the venting was complete. The licensee continued to monitor for further gas accumulation in this section of the piping. None was identified. The unit is at full power. Regional Action: Under the guidance of NRC Management Directive 8.3, Region II initiated a Special Inspection at the site on April 9, 2002. The specific issue of concern to be addressed by the Special Inspection Team is whether the CSIPs were operable and would they have performed their safety function with gas in the common suction line from the RWST. Contact: Brian R. Bonser (404)562-4560
Page Last Reviewed/Updated Wednesday, March 24, 2021
Page Last Reviewed/Updated Wednesday, March 24, 2021