05000237/FIN-2012002-07
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Finding | |
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Title | Inadequate Work instruction Leads to Failure of Secondary Containment Interlock |
Description | A finding of very low safety significance and associated non-cited violation of Technical Specification (TS) Section 5.4.1 was self-revealed because the work instructions associated with WO 1450006-01, D2 SA PM 517 RB/TB INTLK DOOR (2-5850-52) ELECTRICAL CHECKS, were inadequate. The use of inadequate work instructions resulted in the temporary failure of the secondary containment boundary between the Unit 2 Reactor Building and the Unit 2 Turbine Building. The licensees corrective actions included disciplining the maintenance planner and having each of the maintenance department heads prepare human performance improvement plans. The finding was determined to be more than minor because the finding was associated with the Barrier Integrity Cornerstone attribute of configuration control and affected the cornerstone objective of maintaining the functionality of containment. The inspectors determined the finding could be evaluated using the SDP in accordance with IMC 0609, Significance Determination Process, Attachment 0609.04, Phase 1 - Initial Screening and Characterization of Findings, Table 4a for the Barrier Cornerstone because the finding affected the secondary containment. The inspectors answered all four questions No which resulted in the finding screening as having very low safety significance (Green). This finding had a cross-cutting aspect in the area of Human Performance, Work Practices, because the licensee did not ensure that human error techniques such as self and peer checking was used during the creation of the work package. Licensee and management personnel stated that the work planner failed to adequately self-check and get a peer check on the completion of the preparation of the work package. |
Site: | Dresden |
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Report | IR 05000237/2012002 Section 4OA3 |
Date counted | Mar 31, 2012 (2012Q1) |
Type: | NCV: Green |
cornerstone | Barrier Integrity |
Identified by: | NRC identified |
Inspection Procedure: | IP 71153 |
Inspectors (proximate) | J Beavers J Cameron M Jones N Valos R Langstaff T Briley T Go Z Falevits A Dunlop C Phillips D Melendez Colon E Sanchez Santiago |
CCA | H.2, Field Presence |
INPO aspect | LA.2 |
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Finding - Dresden - IR 05000237/2012002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Dresden) @ 2012Q1
Self-Identified List (Dresden)
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