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Significance:
Dec 29, 2007
Identified By: NRC
Item Type: NCV NonCited Violation
INADEQUATE TROUBLESHOOTING FOR A FAILURE OF 13 CONTAINMENT FAN COIL UNIT TO START IN SLOW SPEED
The inspectors identified a non-cited violation of Technical Specification 6.8.1, “Procedures and Programs,” on July 25, 2007, because PSEG did not conduct adequate troubleshooting and corrective maintenance following a repeat failure of the 13 containment fan coil unit (CFCU) to start in slow speed. The finding was greater than minor because it was associated with the structures, systems, and components and barrier performance attribute of the Barrier Integrity cornerstone and adversely affected the objective to provide reasonable assurance that containment barriers protect the public from radionuclide releases caused by accidents or events. Specifically, because PSEG did not perform adequate troubleshooting following the July 25, 2007, 13 CFCU failure to start in slow speed, the 13 CFCU failed to start in slow speed again on November 6, 2007. This impacted the availability and reliability of a system designed to provide containment pressure control during an accident. In accordance with IMC 0609, Appendix H, “Containment Integrity SDP,” table 6.1 "Phase 1 Screening-Type B Findings at Full Power", the finding was determined to be of very low safety significance (Green) because the containment type is large dry and the CFCU failures do not significantly contribute to large early release frequency.
This finding has a cross-cutting aspect of procedure compliance in the area of human performance (H.4(b)). Specifically, PSEG personnel did not follow troubleshooting procedure MA-AA-716-004 following a repeat failure of the 13 CFCU to start in slow speed on July 25, 2007.
Inspection Report# : 2007005 (pdf)
Although the NRC is actively overseeing the Security cornerstone, the Commission has decided that certain findings pertaining to security cornerstone will not be publicly available to ensure that potentially useful information is not provided to a possible adversary. Therefore, the cover letters to security inspection reports may be viewed.
Last modified : August 29, 2008