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At 1206 On May 31, 2008, with the James A. … At 1206 On May 31, 2008, with the James A. FitzPatrick Nuclear Power Plant operating at 100% reactor power, Reactor Building (RB) Radiation Monitor 17RM-452A failed resulting in a Group II Primary Containment Isolation.</br>The failure resulted in actuation of the RB ventilation system isolation logic, start-up of the 'A- Standby Gas Treatment (SBGT) System, and a Half PCIS Group II Isolation. Operations department personnel verified that all expected isolations occurred and Radiation Protection verified that radiation levels in the Reactor Building were normal.</br>The reactor remained at 100% power throughout the event. While the isolation signal was falsely generated by the failure of the Radiation Monitor the actuation logic functioned properly and the plant equipment responded as designed. There were no other equipment failures associated with this event and neither plant operation nor the health and safety of the public were affected by this event.</br>The condition meets the reporting criteria of 10 CFR 50.73 (a)(2)(iv)(a) because the failure of the RB Radiation Monitor constitutes an invalid signal which resulted in a general Containment isolation signal affecting containment Isolation valves in more than one system ('A' SBGT, 'A' H2/02 Exosensors, 'A' Drywall Cam, 'A' Containment Atmosphere Dilution (CAD), 'A' PCP Vent and Purge). Since the signal was invalid this event meets the criteria in 10 CFR 50.73 (a)(1) for being reported as a 60-day phone call rather than as an LER.</br>The event has been entered into the corrective action program and the resident inspector has been briefed. The results of the Equipment Failure Evaluation are not yet available.</br>The licensee also notified the State of New York of this report.fied the State of New York of this report. +
16:06:00, 31 May 2008 +
44,296 +
13:47:00, 13 June 2008 +
16:06:00, 31 May 2008 +
At 1206 On May 31, 2008, with the James A. … At 1206 On May 31, 2008, with the James A. FitzPatrick Nuclear Power Plant operating at 100% reactor power, Reactor Building (RB) Radiation Monitor 17RM-452A failed resulting in a Group II Primary Containment Isolation.</br>The failure resulted in actuation of the RB ventilation system isolation logic, start-up of the 'A- Standby Gas Treatment (SBGT) System, and a Half PCIS Group II Isolation. Operations department personnel verified that all expected isolations occurred and Radiation Protection verified that radiation levels in the Reactor Building were normal.</br>The reactor remained at 100% power throughout the event. While the isolation signal was falsely generated by the failure of the Radiation Monitor the actuation logic functioned properly and the plant equipment responded as designed. There were no other equipment failures associated with this event and neither plant operation nor the health and safety of the public were affected by this event.</br>The condition meets the reporting criteria of 10 CFR 50.73 (a)(2)(iv)(a) because the failure of the RB Radiation Monitor constitutes an invalid signal which resulted in a general Containment isolation signal affecting containment Isolation valves in more than one system ('A' SBGT, 'A' H2/02 Exosensors, 'A' Drywall Cam, 'A' Containment Atmosphere Dilution (CAD), 'A' PCP Vent and Purge). Since the signal was invalid this event meets the criteria in 10 CFR 50.73 (a)(1) for being reported as a 60-day phone call rather than as an LER.</br>The event has been entered into the corrective action program and the resident inspector has been briefed. The results of the Equipment Failure Evaluation are not yet available.</br>The licensee also notified the State of New York of this report.fied the State of New York of this report. +
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