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On 04/28/10, at 1400 EDT, with the reactor … On 04/28/10, at 1400 EDT, with the reactor at 100% power, the Reactor Core Isolation Cooling (RCIC) system was declared inoperable by the Shift Manager (SM) due to an oil leak on the RCIC governor control oil system that could have impacted the system performance during the accredited 24 hour mission time. The fitting where the oil leakage was observed was tightened and the machine was placed in service with no leakage identified. Currently the system is operable and in its normal standby lineup. The system was available for use during this time. At no time was there an impact to the health and safety of the public.</br>The licensee has notified the NRC Resident Inspector.</br>* * * RETRACTION FROM JOHN WHALLEY TO HOWIE CROUCH @ 1300 EDT ON 5/28/10 * * *</br>On April 28, 2010, at 1940 hours, Pilgrim Nuclear Power Station (PNPS) made an 8-hour non-emergency 50.72 notification, Event Notification EN# 45879. The notification was made in accordance with 50.72 (b)(3)(v)(D), Accident Mitigation. Earlier on April 28, 2010, at 1400 hours, a minor oil leak had been identified on the Reactor Core Isolation Cooling (RCIC) system at a lubricating oil vent fitting. The leak was immediately repaired by properly tightening the fitting, then running RCIC to verify no active leak existed. However in the interim, the Shift Manager conservatively declared RCIC inoperable when the high standard for operability could not be assured by initial system engineering judgment for the impact of the oil leak on RCIC system performance in consideration of mission time.</br>Subsequent engineering evaluation concluded that the observed leak, conservatively assumed to be one drop per 3 minutes, would not have impacted RCIC operability for the duration of its required 24 hour mission time. All relevant technical information is documented in the PNPS corrective action system.</br>Therefore PNPS is retracting the event notification EN# 45879. The USNRC Resident Inspector Office has been notified of this retraction.</br>Notified R1DO (Dwyer).of this retraction.
Notified R1DO (Dwyer).
18:00:00, 28 April 2010 +
45,879 +
19:40:00, 28 April 2010 +
18:00:00, 28 April 2010 +
On 04/28/10, at 1400 EDT, with the reactor … On 04/28/10, at 1400 EDT, with the reactor at 100% power, the Reactor Core Isolation Cooling (RCIC) system was declared inoperable by the Shift Manager (SM) due to an oil leak on the RCIC governor control oil system that could have impacted the system performance during the accredited 24 hour mission time. The fitting where the oil leakage was observed was tightened and the machine was placed in service with no leakage identified. Currently the system is operable and in its normal standby lineup. The system was available for use during this time. At no time was there an impact to the health and safety of the public.</br>The licensee has notified the NRC Resident Inspector.</br>* * * RETRACTION FROM JOHN WHALLEY TO HOWIE CROUCH @ 1300 EDT ON 5/28/10 * * *</br>On April 28, 2010, at 1940 hours, Pilgrim Nuclear Power Station (PNPS) made an 8-hour non-emergency 50.72 notification, Event Notification EN# 45879. The notification was made in accordance with 50.72 (b)(3)(v)(D), Accident Mitigation. Earlier on April 28, 2010, at 1400 hours, a minor oil leak had been identified on the Reactor Core Isolation Cooling (RCIC) system at a lubricating oil vent fitting. The leak was immediately repaired by properly tightening the fitting, then running RCIC to verify no active leak existed. However in the interim, the Shift Manager conservatively declared RCIC inoperable when the high standard for operability could not be assured by initial system engineering judgment for the impact of the oil leak on RCIC system performance in consideration of mission time.</br>Subsequent engineering evaluation concluded that the observed leak, conservatively assumed to be one drop per 3 minutes, would not have impacted RCIC operability for the duration of its required 24 hour mission time. All relevant technical information is documented in the PNPS corrective action system.</br>Therefore PNPS is retracting the event notification EN# 45879. The USNRC Resident Inspector Office has been notified of this retraction.</br>Notified R1DO (Dwyer).of this retraction.
Notified R1DO (Dwyer).
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100 +
00:00:00, 28 May 2010 +
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>.
02:09:35, 2 March 2018 +
19:40:00, 28 April 2010 +
Howie Crouch + and John Whalley +
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false +
0.0696 d (1.67 hours, 0.00994 weeks, 0.00229 months) +
18:00:00, 28 April 2010 +
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