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Forwards LER 98-012-00,re high differential pressure required to close excess flow check valves.Rept was previously provided on 980609 & contained first page of different LER.

Accession Number: ML20249B814

Date Released: Saturday, September 19, 2020

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• ML20249B813 - Forwards LER 98-012-00,re high differential pressure required to close excess flow check valves.Rept was previously provided on 980609 & contained first page of different LER. (1 page(s), 6/18/1998)
• ML20249B821 - LER 98-012-00:on 860929,high DP required to close EFCV results in valves being outside of design basis.Caused by personnel error.Design changes to lower DP required to actuate certain EFCV. (4 page(s), 6/9/1998)