05000445/FIN-2008004-03
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Finding | |
|---|---|
| Title | Unevaluated Temporary Modification of Containment Isolation Valve |
| Description | Green. The inspectors identified a noncited violation of Technical Specification 5.4.1.a for the licensees failure to control a fire hose that was used to redirect the discharge of a vent chill water relief valve, which is also a containment isolation valve. As a result, a hose was left on the discharge piping at various times for approximately 10 years without documentation or evaluation. The hose affected the relief valve, in that, operators could not directly observe leakage from the valve. In addition, the hose created a backpressure on the valve that increased its lift setpoint, therefore, potentially affecting the containment penetration integrity. The licensee entered the finding into their corrective action program for resolution. This finding was greater than minor because it was similar to NRC Inspection Manual Chapter 0612, Appendix E, Examples of Minor Issues, Example 4.a, and met the not minor if criteria because the licensee routinely failed to perform evaluations on this issue, and the inspectors determined that the safety-related equipment was adversely affected. Using NRC Inspection Manual Chapter 0609, Attachment 4, Phase 1 - Initial Characterization and Screening of Findings, the inspectors determined that the issue was of very low safety significance because the finding did not result in an actual open pathway of the reactor containment. The cause of this finding was related to the Human Performance crosscutting component of Work Practices, in that, the licensee failed to define and effectively communicate expectations regarding procedural compliance and personnel failed to follow procedures H4.b] (Section 1R18). |
| Site: | Comanche Peak  |
|---|---|
| Report | IR 05000445/2008004 Section 1R18 |
| Date counted | Sep 30, 2008 (2008Q3) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | |
| Inspectors (proximate) | G Guerra P Elkmann G Pick B Tindell G Tutak J Kramer |
| CCA | H.8, Procedure Adherence |
| INPO aspect | WP.4 |
| ' | |
Finding - Comanche Peak - IR 05000445/2008004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Comanche Peak) @ 2008Q3
Self-Identified List (Comanche Peak)
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