05000321/FIN-2012003-01
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Finding | |
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| Title | Removal of scaffolding built to allow implementation of Unit 1 manual operation of the containment hardened vent. |
| Description | The inspectors identified a non-cited violation (NCV) of Hatch Unit 1 Operating License condition 2.C. (4.c) for failure to maintain an adequate strategy to vent the primary containment through the installed hardened vent piping without power. The ability of the licensee to perform the procedure to manually vent primary containment was questioned during an NRC walk down due to the removal of scaffolding installed to allow operator access to manually operate the containment hardened vent. Immediate corrective actions taken by the licensee include erecting the scaffold back in place, and adding multiple barriers to prevent the removal of the scaffolding. This violation was entered into the licensees corrective action program as condition report (CR) 438782. The removal of scaffolding built to allow implementation of Unit 1 manual operation of the containment hardened vent is a performance deficiency. This performance deficiency affects the Mitigating Systems Cornerstone, and is more than minor because it could reasonably be viewed as a precursor to a significant event. Specifically, the inability of the licensee to be able to perform Procedure 31EO-TSG- 001-0, Attachment 10, Manually Open Containment Vent Lines affects the ability to vent primary containment following a station blackout event. The inability to manually vent primary containment utilizing the hardened vent would result in the over pressurization and subsequent failure of primary containment. This finding was assessed using IMC 0609 Appendix L, B.5.b Significance Determination Process, and Table 2. The inspectors determined the finding did not meet the criteria listed within Table 2 for greater than green significance; therefore this finding was screen as Green. The inspectors determined this performance deficiency has a crosscutting aspect in the area of human performance and resources component because the licensee did not have complete, accurate, and up to date work packages, procedures, or labeling of the scaffold to prevent removal. |
| Site: | Hatch  |
|---|---|
| Report | IR 05000321/2012003 Section 1R05 |
| Date counted | Jun 30, 2012 (2012Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.05 |
| Inspectors (proximate) | F Ehrhardt P Higgins S Sandal G Gardner E Morris T Lighty D Hardage |
| CCA | H.7, Documentation |
| INPO aspect | WP.3 |
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Finding - Hatch - IR 05000321/2012003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Hatch) @ 2012Q2
Self-Identified List (Hatch)
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