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On February 23, 2008, a control room opera … On February 23, 2008, a control room operator was aligning the Containment Purge system for Train B operation and triggered an invalid Containment Vent Isolation (CVI) and Auxiliary Building Isolation (ABI). The operator was removing Train A of the system from operation in accordance with system Operating Instruction (SOI) 30.02, 'Containment Purge System'. The operator made an incorrect assumption that a portion of SOI 90.02, 'Gaseous Process Radiation Monitors', that would have properly blocked and aligned power to the Purge Radiation Monitors had been performed. Therefore, when the operator proceeded with the next step in realigning the radiation monitors, a spike occurred on Radiation Monitor 1-RM-90-131. This caused an invalid actuation of Train B of the CVI and ABI systems. Operators verified the isolation and its cause, and suspended movement of irradiated fuel within the Spent Fuel Pool in response to the Train B CVI/ABI signal. The ABI/CVI signal was reset and Auxiliary Building ventilation was restored in accordance with SOI 30.05, 'Auxiliary Bldg HVAC Systems'.</br>The following information addresses the criteria for a 60 day verbal report defined in Section 3.2.6, 'System Actuation' of NUREG 1022, 'Event Reporting Guidelines 10 CFR 50.72 and 50.73'. This telephone notification is being made in accordance with 10 CFR 50.73(a)(2)(iv)(A).</br>(a) The specific train(s) and system(s) that were actuated: The spike on the Radiation Monitor initiated an invalid actuation of Train B of the CVI system and ABI system.</br>(b) Whether each train actuation was complete or partial: The Train B CVI and ABI actuation was complete.</br>(c) Whether or not the system started and functioned successfully: The system started and functioned successfully, and all components operated as expected.</br>The licensee has notified the NRC Resident Inspector.e has notified the NRC Resident Inspector. +
04:00:00, 23 February 2008 +
44,160 +
13:44:00, 23 April 2008 +
04:00:00, 23 February 2008 +
On February 23, 2008, a control room opera … On February 23, 2008, a control room operator was aligning the Containment Purge system for Train B operation and triggered an invalid Containment Vent Isolation (CVI) and Auxiliary Building Isolation (ABI). The operator was removing Train A of the system from operation in accordance with system Operating Instruction (SOI) 30.02, 'Containment Purge System'. The operator made an incorrect assumption that a portion of SOI 90.02, 'Gaseous Process Radiation Monitors', that would have properly blocked and aligned power to the Purge Radiation Monitors had been performed. Therefore, when the operator proceeded with the next step in realigning the radiation monitors, a spike occurred on Radiation Monitor 1-RM-90-131. This caused an invalid actuation of Train B of the CVI and ABI systems. Operators verified the isolation and its cause, and suspended movement of irradiated fuel within the Spent Fuel Pool in response to the Train B CVI/ABI signal. The ABI/CVI signal was reset and Auxiliary Building ventilation was restored in accordance with SOI 30.05, 'Auxiliary Bldg HVAC Systems'.</br>The following information addresses the criteria for a 60 day verbal report defined in Section 3.2.6, 'System Actuation' of NUREG 1022, 'Event Reporting Guidelines 10 CFR 50.72 and 50.73'. This telephone notification is being made in accordance with 10 CFR 50.73(a)(2)(iv)(A).</br>(a) The specific train(s) and system(s) that were actuated: The spike on the Radiation Monitor initiated an invalid actuation of Train B of the CVI system and ABI system.</br>(b) Whether each train actuation was complete or partial: The Train B CVI and ABI actuation was complete.</br>(c) Whether or not the system started and functioned successfully: The system started and functioned successfully, and all components operated as expected.</br>The licensee has notified the NRC Resident Inspector.e has notified the NRC Resident Inspector. +
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00:00:00, 23 April 2008 +
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60.447 d (1,450.73 hours, 8.635 weeks, 1.987 months) +
04:00:00, 23 February 2008 +
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