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On Saturday August 4th 2007 at 1025 hours, … On Saturday August 4th 2007 at 1025 hours, Autoclave # 1 in the X-342 Facility experienced a Containment Shutdown due to the actuation of both 'A' and 'B' EXTREME PRESSURE AUTOCLAVE alarms. The autoclave was in (applicable) TSR MODE II 'Heating' for 55 minutes when these actuations occurred. After reviewing the other autoclave operating parameters and the results of the as-found pressure loop values, it is evident that there was no release of UF6 inside this autoclave. Operations and Engineering Personnel are continuing their investigation into the circumstances surrounding this event in an attempt to identify the cause of the alarm actuations. With no evidence to suggest these alarms were caused by an invalid signal, the Plant Shift Superintendent's (PSS) Office is reporting this event as a valid actuation of a 'Q' Safety System. </br>The autoclave was placed in MODE VII 'Shutdown' and declared inoperable by the Plant Shift Superintendent (PSS). No release of radioactive material occurred as a result of the incident. This event is being reported in accordance with UE2-RA-RE1030 Appendix D. J. 2. Safety Equipment Actuations.</br>The licensee notified the Department of Energy and the NRC Resident Inspector.</br>* * * RETRACTION PROVIDED BY RON CRABTREE TO JEFF ROTTON AT 1232 EDT ON 08/14/07 * * *</br> Following a comprehensive review of the circumstances surrounding this incident by the PORTS Nuclear Regulatory Affairs (NRA) Group, a recommendation was made to the PSS Office that this event be retracted. This recommendation was based upon the determination that the 'Q' Safety function of the 'A' and 'B' EXTREME PRESSURE AUTOCLAVE alarms is to actuate when the internal autoclave shell pressure rises above the operating steam pressure (thereby indicating a UF6 release within the autoclave and placing the autoclave in containment. Since there was no UF6 release and the autoclave internal pressure was only due to steam, there was no valid signal to the 'Q' Autoclave Shell High Pressure Containment Shutdown System. Per the reporting criteria stated in PORTS SAR section 6.9, Table 1, criteria J.2, this is not a reportable event due to the 'Q' system actuation being caused by an invalid signal. Based upon the information provided, the PORTS PSS Office is retracting this event.</br>The licensee notified the NRC Resident Inspector. The licensee will be notifying the Department of Energy.</br>Notified R2DO (Ogle) and FSME EO ( Flannery).ified R2DO (Ogle) and FSME EO ( Flannery).
14:25:00, 4 August 2007 +
43,549 +
09:33:00, 5 August 2007 +
14:25:00, 4 August 2007 +
On Saturday August 4th 2007 at 1025 hours, … On Saturday August 4th 2007 at 1025 hours, Autoclave # 1 in the X-342 Facility experienced a Containment Shutdown due to the actuation of both 'A' and 'B' EXTREME PRESSURE AUTOCLAVE alarms. The autoclave was in (applicable) TSR MODE II 'Heating' for 55 minutes when these actuations occurred. After reviewing the other autoclave operating parameters and the results of the as-found pressure loop values, it is evident that there was no release of UF6 inside this autoclave. Operations and Engineering Personnel are continuing their investigation into the circumstances surrounding this event in an attempt to identify the cause of the alarm actuations. With no evidence to suggest these alarms were caused by an invalid signal, the Plant Shift Superintendent's (PSS) Office is reporting this event as a valid actuation of a 'Q' Safety System. </br>The autoclave was placed in MODE VII 'Shutdown' and declared inoperable by the Plant Shift Superintendent (PSS). No release of radioactive material occurred as a result of the incident. This event is being reported in accordance with UE2-RA-RE1030 Appendix D. J. 2. Safety Equipment Actuations.</br>The licensee notified the Department of Energy and the NRC Resident Inspector.</br>* * * RETRACTION PROVIDED BY RON CRABTREE TO JEFF ROTTON AT 1232 EDT ON 08/14/07 * * *</br> Following a comprehensive review of the circumstances surrounding this incident by the PORTS Nuclear Regulatory Affairs (NRA) Group, a recommendation was made to the PSS Office that this event be retracted. This recommendation was based upon the determination that the 'Q' Safety function of the 'A' and 'B' EXTREME PRESSURE AUTOCLAVE alarms is to actuate when the internal autoclave shell pressure rises above the operating steam pressure (thereby indicating a UF6 release within the autoclave and placing the autoclave in containment. Since there was no UF6 release and the autoclave internal pressure was only due to steam, there was no valid signal to the 'Q' Autoclave Shell High Pressure Containment Shutdown System. Per the reporting criteria stated in PORTS SAR section 6.9, Table 1, criteria J.2, this is not a reportable event due to the 'Q' system actuation being caused by an invalid signal. Based upon the information provided, the PORTS PSS Office is retracting this event.</br>The licensee notified the NRC Resident Inspector. The licensee will be notifying the Department of Energy.</br>Notified R2DO (Ogle) and FSME EO ( Flannery).ified R2DO (Ogle) and FSME EO ( Flannery).
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00:00:00, 14 August 2007 +
GDP-2 +
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>.
23:31:51, 24 November 2018 +
09:33:00, 5 August 2007 +
0.797 d (19.13 hours, 0.114 weeks, 0.0262 months) +
14:25:00, 4 August 2007 +
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