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On October 17,32007,3St. Lucie Unit 1 was … On October 17,32007,3St. Lucie Unit 1 was in Mode 1 at 100 percent reactor power.</br></br>In August 2007, FPL identified that certain fire penetration seal configurations in the floor of the Unit 1 Cable Spread Room (CSR) may not meet the three-hour fire rating requirements.3On October 17,32007,3FPL concluded that the non- complying seal configurations were reportable under 10 CFR 50.72 and 10 CFR 50.73 requirements.3The existing penetration configurations,3as installed,3represent an unanalyzed condition which significantly degraded plant safety.</br></br>The apparent cause was determined to be a legacy issue stemming from inadequate.</br></br>original construction and installation of the fire seals.3At the time of discovery condition reports were initiated and general fire barrier impairments logged in accordance with the Fire ProteCtion Program.3The degraded penetrations.</br></br>continue to be compensated by a roving fire watch in accordance with the Fire Protection. Program.</br></br>Corrective actions planned include installing penetration seal configurations or restoring the barrier under the Vital AC Bus #1 and the lA Load Test Panel.</br></br>Further inspections will be conducted on similar electrical penetrations within Unit 1 and Unit 2 to determine if other occurrences of this condition may exist.r occurrences of this condition may exist. +
October 17, 2007 +
On October 17,32007,3St. Lucie Unit 1 was … On October 17,32007,3St. Lucie Unit 1 was in Mode 1 at 100 percent reactor power.</br></br>In August 2007, FPL identified that certain fire penetration seal configurations in the floor of the Unit 1 Cable Spread Room (CSR) may not meet the three-hour fire rating requirements.3On October 17,32007,3FPL concluded that the non- complying seal configurations were reportable under 10 CFR 50.72 and 10 CFR 50.73 requirements.3The existing penetration configurations,3as installed,3represent an unanalyzed condition which significantly degraded plant safety.</br></br>The apparent cause was determined to be a legacy issue stemming from inadequate.</br></br>original construction and installation of the fire seals.3At the time of discovery condition reports were initiated and general fire barrier impairments logged in accordance with the Fire ProteCtion Program.3The degraded penetrations.</br></br>continue to be compensated by a roving fire watch in accordance with the Fire Protection. Program.</br></br>Corrective actions planned include installing penetration seal configurations or restoring the barrier under the Vital AC Bus #1 and the lA Load Test Panel.</br></br>Further inspections will be conducted on similar electrical penetrations within Unit 1 and Unit 2 to determine if other occurrences of this condition may exist.r occurrences of this condition may exist. +
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05:14:20, 1 December 2017 +
December 14, 2007 +
October 17, 2007 +
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