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Forwards insp repts 50-373/97-08 & 50-374/97-08 on 970428- 0620 & notice of violation.Staff failed to account for design lake level when potential effects of worst case waterhammer event were considered.

Accession Number: ML20149F020

Date Released: Thursday, June 11, 2020

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• ML20149F016 - Forwards insp repts 50-373/97-08 & 50-374/97-08 on 970428- 0620 & notice of violation.Staff failed to account for design lake level when potential effects of worst case waterhammer event were considered. (3 page(s), 7/17/1997)
• ML20149F022 - Notice of violation from insp on 970428-0620.Violation noted:test engineer conducting residual heat removal SWS post-mod testing,safety related function returned to work w/o break of 8 h between work periods. (1 page(s), 7/17/1997)
• ML20149F029 - Insp repts 50-373/97-08 & 50-374/97-08 on 970428-0620. Violations noted.Major areas inspected:unresolved item re RHR heat exchanger waterhammer concern. (21 page(s), 7/17/1997)