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Significance:
Aug 17, 2007
Identified By: Self-Revealing
Item Type: NCV NonCited Violation
Failure to Update Parts Specifications Following a Design Modification
A self-revealing non-cited violation of 10 CFR 50, Appendix B, Criterion III was identified for failure to control the design aspects of a plant modification. The licensee failed to incorporate vendor parts and specifications for a modification to the Unit 1 residual heat removal (RHR) pump discharge check valves.
The team determined this finding is more than minor because it was related to the Equipment Performance attribute of the Mitigating Systems cornerstone and adversely affects the cornerstone objective in that the repeat failures resulted in unplanned unavailability of one train of RHR. This finding is of very low safety significance because it did not result in loss of safety function for a single train greater than allowed Technical Specification outage time. The team determined this finding was of very low safety significance because it did not result in loss of safety function for a single train greater than allowed Technical Specification outage time. The team determined this finding involved a Human Performance cross-cutting aspect of complete, accurate and up-todate design documentation, procedures, and work packages in that the vendor part number for the non-counterweighted valve disk hanger was not reflected in current station documents. The licensee has entered this violation into their corrective action program as CR 2007107101.
Inspection Report# : 2007006 (pdf)
Significance: Aug 17, 2007
Identified By: NRC
Item Type: NCV NonCited Violation
Failure to Perform Required ASME Code, Section XI Testing
An NRC-identified Green non-cited violation of 10 CFR 50.55a(g)(4) for the failure to perform periodic leakage testing of buried piping sections of the High Pressure Coolant Injection (HPCI) and Standby Diesel Service Water (SBDSW) systems as required by Section XI of the ASME Code for the third 10-year In-service Inspection (ISI)
interval.
This finding is more than minor because it affects the Equipment Performance attribute of the Mitigating Systems cornerstone and adversely affects the cornerstone objective in that if a significant leak or rupture should occur as a result of undetected piping degradation, water could not be delivered to mitigating system components preventing these systems from fulfilling their intended safety functions. This finding is of very low safety significance (Green) because it does not represent an actual loss of a system’s safety function. Further, the licensee performed the required testing on the SBDSW piping on May 22, 2007, and performed HPCI piping inspections in 2005 and found no significant degradation. This finding was reviewed for any cross-cutting aspects and none were identified. The licensee has entered the violation into their corrective action
program as CRs 2007102265 and 2007104138.
Inspection Report# : 2007006 (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.
Significance: N/A Aug 17, 2007
Identified By: NRC
Item Type: FIN Finding
Biennial Identification and Resolution of Problems Inspection Summary
Two Green non-cited violations (NCVs) were identified. The team identified that the licensee
was generally effective at identifying problems and entering them into the corrective action
program (CAP) for resolution. The licensee maintained a low threshold for identifying problems
as evidenced by the continued large number of condition reports (CRs) entered annually into
the CAP. The team also determined the licensee was generally prioritizing and evaluating
issues properly. The team identified minor problems involving corrective actions for operating
experience not being documented within the corrective action program, timeliness of
evaluations, and corrective actions which were incomplete. NCVs related to the effectiveness of
corrective actions and inadequate evaluation of issues were identified. Audits and selfassessments
continued to identify issues related to the corrective action program. On the basis
of interviews conducted during the inspection, the team identified that personnel at the site felt
free to raise safety concerns to management and to resolve issues via the CAP.
Inspection Report# : 2007006 (pdf)
Last modified : August 29, 2008