05000313/FIN-2011002-03
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Finding | |
|---|---|
| Title | Inadequate Procedural Guidance Results in Damaged Emergency Control Room Ventilation System Air Damper |
| Description | The inspectors documented a self-revealing noncited violation of Technical Specification 5.4.1.a for the inadequate maintenance work order and procedure that resulted in damaging the damper, CV-7910, VSF-9 makeup air supply, during planed maintenance activities. Specifically, work order 52220286 referenced a procedurally controlled temporary modification, that referred to an incorrect engineering change document, was vaguely written and led to the installation of the wrong flange cover and resulted in a damaged damper and challenged the control room envelope integrity. The licensee repaired the damaged damper and entered the issue into corrective action program as Condition Report CR-ANO-C-2010-2429. The failure of the licensee to provide adequate procedural guidance, that led to the installation of the wrong flange cover and resulted in a bent damper, CV-7910, associated with the Unit 1 control room emergency ventilation system was a performance deficiency. This was determined to be within the licensees ability to foresee and correct and is a violation of a unit 1 technical specification. The performance deficiency was determined to be more than minor because it was associated with the procedure quality attribute of the Barrier Integrity cornerstone and adversely affected the cornerstone objective provide reasonable assurance that the physical design barriers protect the public from radionuclide releases caused by accidents or events, and is therefore a finding. Using Manual Chapter 0609.04, Phase 1 - Initial Screening and Characterization of Findings, the finding was determined to have very low safety significance, Green, because the finding did not represent a degradation of the barrier function for the control room against radiation, smoke or toxic gas. The finding was determined to have no cross-cutting aspects due to the procedure change that took place in 2005 and is not indicative of current plant performance. |
| Site: | Arkansas Nuclear  |
|---|---|
| Report | IR 05000313/2011002 Section 4OA2 |
| Date counted | Mar 31, 2011 (2011Q1) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | L Ricketson W Schaup A Sanchez B Baca C Graves I Anchondo J Clark J Melfi J Rotten |
| INPO aspect | |
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Finding - Arkansas Nuclear - IR 05000313/2011002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Arkansas Nuclear) @ 2011Q1
Self-Identified List (Arkansas Nuclear)
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