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VIRGIL C. SUMMER NUCLEAR STATION DOCkET NO.50-395OPERATING LICENSE NO. NPF-12 LICENSEE EVENT REPORT (LER 1999-011-00) Significant Safety Hazard 990002, Internal Circuit Breaker Cabling AIIows the Cable to Interfere with the Trip Mechanism

Accession Number: ML993070232

Date Released: Monday, November 8, 1999

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• ML993070226 - VIRGIL C. SUMMER NUCLEAR STATION DOCkET NO.50-395 OPERATING LICENSE NO. NPF-12 LICENSEE EVENT REPORT (LER 1999-011-00) Significant Safety Hazard 990002, Internal Circuit Breaker Cabling Allows the Cable to Interfere with the Trip Mechanism (1 page(s), 10/21/1999)
• ML993070229 - LER 99-011-00: on Aug 6,1999,during performance of surveillance test procedure on an ABB K-Line breaker removed from cubical XSW1DB1 07D,the breaker failed to trip on the long time delay setting.Cause was determined to be inappropriate routing. (4 page(s), 10/21/1999)