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On 11/24/2015 at 0534 hours (CST) the plan … On 11/24/2015 at 0534 hours (CST) the plant was in MODE 3 (hot standby) for a forced outage. While initially placing Shutdown Cooling (SDC) in service, the 12 Residual Heat Removal (RHR) pump tripped approximately 8-10 seconds after start due to the closure of the RHR SDC suction isolation valves. This was determined to be from an invalid signal on the Reactor Pressure Vessel (RPV) suction interlock. This is being reported under 10 CFR 50.72 (b)(3)(v)(B) as an event or condition that could have prevented the fulfillment of the safety function of structures or systems that are needed to remove residual heat. This event did not challenge the ability to maintain safe shutdown conditions, remove residual heat, control the release of radioactive material, or mitigate the consequences of an accident as other methods of decay heat removal were being utilized successfully to establish plant conditions.</br>The NRC Resident Inspector has been notified.</br>This incident places the RHR system in a 24-hour technical specification limiting condition for operations.ication limiting condition for operations. +
11:34:00, 24 November 2015 +
51,564 +
14:19:00, 24 November 2015 +
11:34:00, 24 November 2015 +
On 11/24/2015 at 0534 hours (CST) the plan … On 11/24/2015 at 0534 hours (CST) the plant was in MODE 3 (hot standby) for a forced outage. While initially placing Shutdown Cooling (SDC) in service, the 12 Residual Heat Removal (RHR) pump tripped approximately 8-10 seconds after start due to the closure of the RHR SDC suction isolation valves. This was determined to be from an invalid signal on the Reactor Pressure Vessel (RPV) suction interlock. This is being reported under 10 CFR 50.72 (b)(3)(v)(B) as an event or condition that could have prevented the fulfillment of the safety function of structures or systems that are needed to remove residual heat. This event did not challenge the ability to maintain safe shutdown conditions, remove residual heat, control the release of radioactive material, or mitigate the consequences of an accident as other methods of decay heat removal were being utilized successfully to establish plant conditions.</br>The NRC Resident Inspector has been notified.</br>This incident places the RHR system in a 24-hour technical specification limiting condition for operations.ication limiting condition for operations. +
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00:00:00, 24 November 2015 +
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>.
01:46:17, 2 March 2018 +
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0.115 d (2.75 hours, 0.0164 weeks, 0.00377 months) +
11:34:00, 24 November 2015 +
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