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During the required quarterly oil sample t … During the required quarterly oil sample taken following scheduled flow rate surveillance, the Unit 2 HPCI oil system was found to contain excessive amounts of water. HPCI declared inoperable.</br>This event is reportable under 10CFR50.72(b)(3)(v)(B), 'Any event or condition that at the time of discovery could have prevented the fulfillment of the safety function of structures or systems that are needed to remove residual heat.'</br>Unit 2 remains at 100% power</br>14 day TS LCO 3.5.1 has been entered and troubleshooting is in progress.</br>NRC Resident has been notified.</br>* * * RETRACTION PROVIDED AT 1648 ON 06/30/08 FROM MICHAEL HUNTER TO JEFF ROTTON * * *</br>ENS Event Number 44186, made on May 4, 2008, is being retracted." </br>NRC Notification 44186 was conservatively made to ensure that the Eight-Hour Non-Emergency reporting requirements of 10 CFR 50.72 were met when a required quarterly oil sample taken following a flow rate surveillance on the Unit 2 High Pressure Coolant Injection (HPCI) System indicated that the turbine oil system contained excessive amounts of water.</br>An evaluation performed in response to this report concluded that the HPCI System was capable of performing its intended safety function even though the turbine oil system contained more water than recommended in the TVA Lubrication Oil Analysis and Monitoring Program. TVA found through visual inspection and engineering evaluation that the amount of water contained in the turbine oil system would not impact the HPCI operation during its' mission time for the Design Basis Loss-of-Coolant Accident. </br>As such, the circumstances discussed in the report did not result in any condition that at the time of discovery could have prevented the fulfillment of the safety function of structures of system that are needed to remove residual heat. Thus, there was no impact on nuclear safety. Therefore, this event is not reportable under 10 CFR 50.72(b)(3)(v)(B).</br>TVA's evaluation of this event notification is documented in the corrective action program.</br>The licensee has notified the NRC Resident Inspector.</br>The licensee has changed the oil and continues to monitor the oil reservoir monthly until the problem causing the excessive water (Turbine Admission valve) is corrected .</br>Notified R2DO (O'Donohue)) is corrected .
Notified R2DO (O'Donohue)
20:30:00, 4 May 2008 +
44,186 +
22:14:00, 4 May 2008 +
20:30:00, 4 May 2008 +
During the required quarterly oil sample t … During the required quarterly oil sample taken following scheduled flow rate surveillance, the Unit 2 HPCI oil system was found to contain excessive amounts of water. HPCI declared inoperable.</br>This event is reportable under 10CFR50.72(b)(3)(v)(B), 'Any event or condition that at the time of discovery could have prevented the fulfillment of the safety function of structures or systems that are needed to remove residual heat.'</br>Unit 2 remains at 100% power</br>14 day TS LCO 3.5.1 has been entered and troubleshooting is in progress.</br>NRC Resident has been notified.</br>* * * RETRACTION PROVIDED AT 1648 ON 06/30/08 FROM MICHAEL HUNTER TO JEFF ROTTON * * *</br>ENS Event Number 44186, made on May 4, 2008, is being retracted." </br>NRC Notification 44186 was conservatively made to ensure that the Eight-Hour Non-Emergency reporting requirements of 10 CFR 50.72 were met when a required quarterly oil sample taken following a flow rate surveillance on the Unit 2 High Pressure Coolant Injection (HPCI) System indicated that the turbine oil system contained excessive amounts of water.</br>An evaluation performed in response to this report concluded that the HPCI System was capable of performing its intended safety function even though the turbine oil system contained more water than recommended in the TVA Lubrication Oil Analysis and Monitoring Program. TVA found through visual inspection and engineering evaluation that the amount of water contained in the turbine oil system would not impact the HPCI operation during its' mission time for the Design Basis Loss-of-Coolant Accident. </br>As such, the circumstances discussed in the report did not result in any condition that at the time of discovery could have prevented the fulfillment of the safety function of structures of system that are needed to remove residual heat. Thus, there was no impact on nuclear safety. Therefore, this event is not reportable under 10 CFR 50.72(b)(3)(v)(B).</br>TVA's evaluation of this event notification is documented in the corrective action program.</br>The licensee has notified the NRC Resident Inspector.</br>The licensee has changed the oil and continues to monitor the oil reservoir monthly until the problem causing the excessive water (Turbine Admission valve) is corrected .</br>Notified R2DO (O'Donohue)) is corrected .
Notified R2DO (O'Donohue)
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100 +
00:00:00, 30 June 2008 +
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>.
22:34:20, 24 September 2017 +
22:14:00, 4 May 2008 +
true +
false +
0.0721 d (1.73 hours, 0.0103 weeks, 0.00237 months) +
20:30:00, 4 May 2008 +
URL"URL" is a <a href="/Special:Types/URL" title="Special:Types/URL">type</a> and predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> to represent URI/URL values.