05000302/FIN-2008006-03
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Finding | |
|---|---|
| Title | Evaluate Opening Access Hatch to Cable Spread Room |
| Description | The team identified an unresolved item (URI) related to the licensees compliance with the CR-3 operating license condition 2.C.(9) and the approved FPP when the access hatch from the MCR floor to the CSR was opened on more than one occasion for maintenance troubleshooting activities. The team reviewed NCR 264494 which the licensee initiated in response to questions from the NRC resident inspectors who observed the access hatch from the MCR floor to the CSR was open and there did not appear to be any compensatory measures in place. The NCR stated that the licensee opened the access hatch between the MCR floor and the CSR to perform battery ground troubleshooting activities. The team questioned if this activity potentially degraded the CSR Halon suppression system. With the hatch open, the team questioned the capability of the Halon suppression system to meet the licensing basis requirement to maintain a 5% Halon concentration for 10 minutes in the event of an Appendix R fire in the CSR. The team also questioned if the licensee performed an evaluation to determine the impact of the hatch being open on the CSR Halon suppression system and to determine if compensatory measures were needed. As a result of questions raised by the team during the inspection, the licensee initiated NCR 266356 to evaluate the impact on the operability of the CSR Halon suppression system with the MCR access door hatch open. The team requested additional information from the licensee regarding the amount of thermoplastic cables in the CSR, how many times and the duration each time the hatch was opened for maintenance troubleshooting in the past year. The licensee provided the requested information to the team and the information is currently being reviewed. The team informed the licensee that this issue will be identified as an URI pending further NRC review of the requested information. This item will be tracked as URI 05000302/2008006-03, Evaluate Opening Access Hatch to Cable Spread Room |
| Site: | Crystal River  |
|---|---|
| Report | IR 05000302/2008006 Section 1R05 |
| Date counted | Mar 31, 2008 (2008Q1) |
| Type: | URI: |
| cornerstone | No Cornerstone |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.05 |
| Inspectors (proximate) | N Staples S Walker B Melly J Quinones M Thomas P Fillion L Bradfordr Reyest Morrissey P Higgins R Chou R Aiello S Ninh M Sykes N Smith K Schaaf |
| INPO aspect | |
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Finding - Crystal River - IR 05000302/2008006 | |||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Crystal River) @ 2008Q1
Self-Identified List (Crystal River)
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