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On 5/1/05 at 19:16, the plant entered MODE … On 5/1/05 at 19:16, the plant entered MODE 2 and began a reactor startup. After withdrawing control rods, but prior to criticality, perturbations were noticed on reactor vessel level indications and control rod withdrawal was halted.</br>At 22:32 control rods were inserted in reverse order to maintain the reactor subcritical. At that time, level instrumentation associated with the 'A' level reference leg was declared inoperable. All control rods were inserted at 23:02 in Mode 2.</br>At 23:32 on 5/1/05 a 12 hour shutdown statement was entered due to the inoperable level instrumentation. Efforts were underway to troubleshoot and restore the level Instrumentation.</br>On 5/2/05 at 06:11 the reactor mode switch was placed in shutdown - level instrumentation will not be restored within the time allowed by Technical Specifications. Instrument fill and vent procedures are being implemented at this time. The plant expects to enter Mode 2 later today.</br>Technical specification 3.3.6.1 requires restoration within one hour, shutdown within 12 hours. This reference leg level affects both the wide and narrow range level instruments and feed into the Reactor Protective System, Emergency Core Cooling System Instrumentation, and Isolation Instrumentation systems.</br>The licensee notified the NRC Resident Inspector.</br>* * * RETRACTION ON 6/3/05 AT 12:02 FROM PERRY'S COMPLIANCE SUPERVISOR (KEN MEADE) TO ABRAMOVITZ * * *</br>Update to Event Notification (EN 41657) Retraction:</br>A 4-hour notification was made on May 2, 2005, in accordance with 10CFR50.72(b)(2)(i), for a shutdown required by Technical Specifications. The report was made due to inserting all withdrawn control rods during a startup, prior to criticality, for Technical Specification 3.3.6.1 required actions. Technical Specification 3.3.6.1 was entered as a result of level perturbations determined to have been caused by reference leg keep-fill system operation when the reactor pressure vessel (RPV) was under vacuum conditions with minor component compression fitting leaks. Actions were taken to fix the minor leaks in the reference leg keep-fill panel. Additionally, the reference leg keep-fill system was removed from service until the RPV was pressurized.</br>It was subsequently determined that since the reactor had not yet been taken critical, the reactor was in a shutdown condition. Per NUREG-1022, rev 2, section 3.2.1 'Plant Shutdown Required by Technical Specifications,' the 'initiation of any nuclear plant shutdown' does not include mode changes required by TS if initiated after the plant is already in a shutdown condition. Since the plant remained in a shutdown condition, this issue is not reportable.</br>Since the condition is not reportable. EN 41657 is retracted.</br>The licensee notified the NRC Resident Inspector. The R3DO (Burgess) has been notified.or. The R3DO (Burgess) has been notified.
10:11:00, 2 May 2005 +
09:43:00, 2 May 2005 +
10:11:00, 2 May 2005 +
On 5/1/05 at 19:16, the plant entered MODE … On 5/1/05 at 19:16, the plant entered MODE 2 and began a reactor startup. After withdrawing control rods, but prior to criticality, perturbations were noticed on reactor vessel level indications and control rod withdrawal was halted.</br>At 22:32 control rods were inserted in reverse order to maintain the reactor subcritical. At that time, level instrumentation associated with the 'A' level reference leg was declared inoperable. All control rods were inserted at 23:02 in Mode 2.</br>At 23:32 on 5/1/05 a 12 hour shutdown statement was entered due to the inoperable level instrumentation. Efforts were underway to troubleshoot and restore the level Instrumentation.</br>On 5/2/05 at 06:11 the reactor mode switch was placed in shutdown - level instrumentation will not be restored within the time allowed by Technical Specifications. Instrument fill and vent procedures are being implemented at this time. The plant expects to enter Mode 2 later today.</br>Technical specification 3.3.6.1 requires restoration within one hour, shutdown within 12 hours. This reference leg level affects both the wide and narrow range level instruments and feed into the Reactor Protective System, Emergency Core Cooling System Instrumentation, and Isolation Instrumentation systems.</br>The licensee notified the NRC Resident Inspector.</br>* * * RETRACTION ON 6/3/05 AT 12:02 FROM PERRY'S COMPLIANCE SUPERVISOR (KEN MEADE) TO ABRAMOVITZ * * *</br>Update to Event Notification (EN 41657) Retraction:</br>A 4-hour notification was made on May 2, 2005, in accordance with 10CFR50.72(b)(2)(i), for a shutdown required by Technical Specifications. The report was made due to inserting all withdrawn control rods during a startup, prior to criticality, for Technical Specification 3.3.6.1 required actions. Technical Specification 3.3.6.1 was entered as a result of level perturbations determined to have been caused by reference leg keep-fill system operation when the reactor pressure vessel (RPV) was under vacuum conditions with minor component compression fitting leaks. Actions were taken to fix the minor leaks in the reference leg keep-fill panel. Additionally, the reference leg keep-fill system was removed from service until the RPV was pressurized.</br>It was subsequently determined that since the reactor had not yet been taken critical, the reactor was in a shutdown condition. Per NUREG-1022, rev 2, section 3.2.1 'Plant Shutdown Required by Technical Specifications,' the 'initiation of any nuclear plant shutdown' does not include mode changes required by TS if initiated after the plant is already in a shutdown condition. Since the plant remained in a shutdown condition, this issue is not reportable.</br>Since the condition is not reportable. EN 41657 is retracted.</br>The licensee notified the NRC Resident Inspector. The R3DO (Burgess) has been notified.or. The R3DO (Burgess) has been notified.
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00:00:00, 3 June 2005 +
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