05000354/FIN-2009007-02
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Finding | |
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Title | EDG Overhead Cranes Not Seismically Restrained |
Description | The team identified a finding of very low safety significance (Green) involving anon-cited violation of 10 CFR 50 Appendix B Criterion III, Design Control, in that PSEG design control measures had not verified the adequacy of design with respect to ensuring adequate two-over-one seismic protection existed for the emergency diesel generators (EDG). Specifically, PSEG had not performed design reviews, calculations or testing to ensure the existing field crane configuration would not adversely impact the EDG function for a design basis safe shutdown earthquake (SSE) event. PSEG entered this issue into their corrective action program, performed Technical Evaluation (TE) 70102445-0050, Diesel Generator Underhung Crane Seismic 11/1 Evaluation, to calculate the seismic response of the diesel cranes and assess the as-found condition (e.g., crane seismic restraints not installed) and implemented appropriate compensatory measures. The finding was more than minor because it was associated with the design control attribute of the Mitigating Systems Cornerstone and affected the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The team determined the finding was of very low safety significance (Green) because it was a design deficiency subsequently confirmed not to result in a loss of operability or functionality. This finding did not have across-cutting aspect because the issue was not considered to be indicative of current licensee performance. |
Site: | Hope Creek ![]() |
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Report | IR 05000354/2009007 Section 1R21 |
Date counted | Dec 31, 2009 (2009Q4) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | NRC identified |
Inspection Procedure: | IP 71111.21 |
Inspectors (proximate) | G Skinner F Arner A Ziedonis D Orr L Doerflein J Richmond C Baron |
INPO aspect | |
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Finding - Hope Creek - IR 05000354/2009007 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Hope Creek) @ 2009Q4
Self-Identified List (Hope Creek)
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