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At 2038EST Unit 1 Control Room Operators o … At 2038EST Unit 1 Control Room Operators observed and quantified unidentified RCS leakage of approximately 14 gpm based on containment sump pump operation and a corresponding decrease in VCT level. Unit 1 was preparing for startup and there were no ongoing maintenance activities at the time. The licensee declared an Unusual Event entering their emergency procedures to isolate and identify the source of the leakage. As a result, a pressurizer sample line was isolated which terminated the leakage. The licensee will remain in the Unusual Event until an investigation is completed confirming that this was the source. There was no measured increase in radiation levels/humidity inside containment or radioactive release to the environment.</br>At the time of the report, 3 of the 4 RCPs were operating for forced circulation with the 4th RCP secured earlier in the day during a test. All ECCS systems are available including the EDGs, if needed. Normal makeup is in service to maintain RCS inventory with MFW supplying the Generators for decay heat removal via the steam bypass to the Main Condenser.</br>The licensee informed state/local agencies and will inform the NRC Resident Inspector.</br>At 2158EST the NRC determined that this event did not require entry into the Monitoring Phase of Normal Mode.</br>* * * UPDATE ON 01/03/04 AT 0006 EST FROM SLYVESTER MONTGOMERY TO GERRY WAIG * * *</br>The licensee terminated the NOUE at 2353 hours EST on 01/02/04. The leak has been identified as coming from a relief valve flange on the pressurizer sample line. Maintenance activities are on-going to repair the leak and the reactor remains in mode 3. The licensee has notified state and local government of the NOUE termination and will be notifying the NRC Resident Inspector.</br>Notified R2DO (David Ayres), FEMA (Dan Sullivan), DIRO (Tim McGinty), NRR (Pao-Tsin Kuo), NRC (Thomas)McGinty), NRR (Pao-Tsin Kuo), NRC (Thomas) +
01:38:00, 3 January 2004 +
40,424 +
21:30:00, 2 January 2004 +
01:38:00, 3 January 2004 +
At 2038EST Unit 1 Control Room Operators o … At 2038EST Unit 1 Control Room Operators observed and quantified unidentified RCS leakage of approximately 14 gpm based on containment sump pump operation and a corresponding decrease in VCT level. Unit 1 was preparing for startup and there were no ongoing maintenance activities at the time. The licensee declared an Unusual Event entering their emergency procedures to isolate and identify the source of the leakage. As a result, a pressurizer sample line was isolated which terminated the leakage. The licensee will remain in the Unusual Event until an investigation is completed confirming that this was the source. There was no measured increase in radiation levels/humidity inside containment or radioactive release to the environment.</br>At the time of the report, 3 of the 4 RCPs were operating for forced circulation with the 4th RCP secured earlier in the day during a test. All ECCS systems are available including the EDGs, if needed. Normal makeup is in service to maintain RCS inventory with MFW supplying the Generators for decay heat removal via the steam bypass to the Main Condenser.</br>The licensee informed state/local agencies and will inform the NRC Resident Inspector.</br>At 2158EST the NRC determined that this event did not require entry into the Monitoring Phase of Normal Mode.</br>* * * UPDATE ON 01/03/04 AT 0006 EST FROM SLYVESTER MONTGOMERY TO GERRY WAIG * * *</br>The licensee terminated the NOUE at 2353 hours EST on 01/02/04. The leak has been identified as coming from a relief valve flange on the pressurizer sample line. Maintenance activities are on-going to repair the leak and the reactor remains in mode 3. The licensee has notified state and local government of the NOUE termination and will be notifying the NRC Resident Inspector.</br>Notified R2DO (David Ayres), FEMA (Dan Sullivan), DIRO (Tim McGinty), NRR (Pao-Tsin Kuo), NRC (Thomas)McGinty), NRR (Pao-Tsin Kuo), NRC (Thomas) +
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00:00:00, 3 January 2004 +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
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