05000324/FIN-2009002-05
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Finding | |
|---|---|
| Title | Inadequate Maintenance Procedure for the Control Room Air Conditioning and Emergency Ventilation Instrument Air System (Section 4OA2) |
| Description | A self-revealing Green NCV of Technical Specification (TS) 5.4.1, Procedures, was identified for inadequate maintenance procedures for the control room air conditioning and emergency ventilation system instrument air dryer. As a result, on January 21, 2009, the control room air conditioning and emergency ventilation instrument air system lost air pressure, rendering the control room air conditioning (AC) system and the control room emergency ventilation (CREV) system inoperable. The licensee entered the issue into their corrective action program and changed maintenance and operating procedures to prevent recurrence. The failure to implement adequate maintenance procedures for the control room air conditioning and emergency ventilation instrument air system is a performance deficiency. This performance deficiency is more than minor because it is associated with structure, system, and component (SSC), and barrier performance attribute of the Barrier Integrity Cornerstone. It also adversely affected the cornerstone objective of maintaining a radiological barrier for the control room. The finding was determined to be of very low safety significance because it only affected the radiological barrier function of the control room, and does not represent a degradation of the smoke or toxic atmosphere barrier function of the control room. The cause of the finding is related to the cross-cutting area of human performance, resources component, complete and accurate documentation aspect, because the licensee did not incorporate adequate guidance for maintaining the control room AC and CREV instrument air dryer in their maintenance procedures. (H.2(c)) (Section 4OA2 |
| Site: | Brunswick  |
|---|---|
| Report | IR 05000324/2009002 Section 4OA2 |
| Date counted | Mar 31, 2009 (2009Q1) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | A Nielsen G Kuzo R Chou R Musser G Kolcum K Ellis B Davis M Corsey R Jackson |
| CCA | H.7, Documentation |
| INPO aspect | WP.3 |
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Finding - Brunswick - IR 05000324/2009002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Brunswick) @ 2009Q1
Self-Identified List (Brunswick)
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