Finding | |
|---|---|
| Title | Failure to Maintain Adequate Pressurization of the Control Room Envelope |
| Description | A self-revealed Green NCV of 10 CFR Part 50, Criterion III, Design Control, was identified when the licensee failed to adequately recognize that the cable spreading room floor was a control building ventilation isolation boundary. Specifically, the licensee cut openings in the floor/ceiling between the 2,032 foot and 2,016 foot elevations of the control building and the impact on the control room envelopes ability to pressurize was not recognized. This was a primary contributor to the train B control room emergency ventilation system being unable to maintain the appropriate pressure in the control room envelope. |
| Site: | Wolf Creek  |
|---|---|
| Report | IR 05000482/2018002 Section 4OA2 |
| Date counted | Jun 30, 2018 (2018Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | D Dodson F Thomas C Alldredge I Anchondo J Melfi J O'Donnell N Taylor |
| CCA | H.3, Change Management |
| INPO aspect | LA.5 |
| ' | |
Finding - Wolf Creek - IR 05000482/2018002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Wolf Creek) @ 2018Q2
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