05000395/FIN-2008004-02
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Finding | |
|---|---|
| Title | Failure to Maintain the Cotnrol Room Pressure Boundary Operable and Complete the Required TS Actions |
| Description | The inspectors identified a Green NCV for failure to comply with Technical Specifications (TS) Limited Conditions for Operation (LCO) 3.7.6, Control Room Normal and Emergency Air Handling System, for the failure to maintain the control room boundary intact and operable, and complete the required TS actions. Specifically, the control room pressure boundary (CRPB) was breached and inoperable, and the Control Room Normal and Emergency Air Handling System was not capable of performing its TS function for a period of 17 days. The licensee completed repairs to the ductwork, restored compliance with the TS, and documented this issue in their corrective action program as CR-08- 00944 and CR-08-00972. This finding was more than minor because it affected the barrier performance attribute of the Barrier Integrity cornerstone and affected the cornerstone objective of providing reasonable assurance that the control room maintains radiological barrier functionality and protects the plant operators from radionuclide releases caused by accidents or events. The finding was evaluated using Inspection Manual Chapter 0609, Significance Determination Process, Phase I Worksheet for barrier integrity. The finding was determined to be of very low safety significance (Green) because it represented a degradation of the radiological barrier function provided for the control room. The finding directly involved the cross-cutting area of Human Performance, component of Resources, and aspect of Complete, Accurate and up-to-date Design Documentation and Procedures, in that, the post maintenance test for XAH0048 failed to include the verification of CRPB restoration through complete testing of the control room envelope (H.2.c). (Section 1R15.b) |
| Site: | Summer  |
|---|---|
| Report | IR 05000395/2008004 Section 1R15 |
| Date counted | Sep 30, 2008 (2008Q3) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | F Ehrhardt R Chou J Polickoski J Dodson J Zeiler B Caballero K Ellis |
| CCA | H.7, Documentation |
| INPO aspect | WP.3 |
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Finding - Summer - IR 05000395/2008004 | |||||||||||||||||||||||||||||||||||||||
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Finding List (Summer) @ 2008Q3
Self-Identified List (Summer)
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