05000255/FIN-2011003-05
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Finding | |
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Title | Application of EAL Scheme During Drill |
Description | The inspectors identified a URI regarding the declaration of an unusual event (UE) for flooding in the auxiliary feedwater (AFW) pump room during a drill. Specifically, based on the information provided to the crew from the drill scenario, the inspectors believed that an Alert would have been the appropriate declaration. During review of the February 23, 2011 integrated emergency planning drill, the inspectors identified what appeared to be an incorrect EAL declaration. The first event of the drill involved flooding from a fire header rupture in the AFW pump room. The scenario was structured such that a UE or an Alert could be the correct declaration based on whether or not the shift manager felt there was a safety concern. The scenario also provided flood levels based on time elapsed from the rupture for the controllers to provide to the crew. Upon their investigation of the leak, a message was provided to the crew that there was approximately three feet of water in the room. This would submerge approximately two-thirds of the electric AFW pump motor and render it unavailable. A UE was declared and was later critiqued by the emergency planning organization as an appropriate declaration. After reviewing the EAL scheme and basis, the inspectors determined an Alert should have been the correct declaration. While the inspectors were engaging regional staff on this potential finding, questions were raised regarding whether or not a performance deficiency existed and how this issue would be best processed in the significance determination process (if it became a finding). Specifically, further action is needed by the NRC to determine the appropriate application of the EAL scheme for the given circumstances in the drill. Additionally, if the issue is determined to be a finding, the appropriate planning standard to use in the SDP needs to be resolved. URI 05000255/2011003-05, Application of EAL Scheme During Drill. |
Site: | Palisades |
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Report | IR 05000255/2011003 Section 1EP6 |
Date counted | Jun 30, 2011 (2011Q2) |
Type: | URI: |
cornerstone | Emergency Prep |
Identified by: | NRC identified |
Inspection Procedure: | IP 71114.06 |
Inspectors (proximate) | M Holmberg J Cassidy J Ellegood R Walton T Taylor J Beaversc Zoiaa Dahbur J Cassidy J Ellegood T Taylor A Scarbeary |
INPO aspect | |
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Finding - Palisades - IR 05000255/2011003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Palisades) @ 2011Q2
Self-Identified List (Palisades)
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