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On November 6, 2009, at 1930 CST the react … On November 6, 2009, at 1930 CST the reactor was manually scrammed following a manual trip of the Main Turbine due to an un-isolable leak on the Turbine High Pressure Fluid System (TGF). The RO (Reactor Operator) scrammed the reactor when (reactor vessel water) level lowered below 12 inches on the Narrow Range Instruments. All Control Rods fully inserted and a Group 2 Isolation occurred when level reached 3 inches on the Narrow Range Instruments. Reactor level lowered to approximately 22 inches on the Wide Range Instruments and was recovered in a slow and deliberate manner in order to minimize the effect on the cool down rate because of low levels of decay heat in the fuel. The Reactor Feed System was used to initially recover level. At 2043, the plant was in Mode 3 with the inboard MSIVs manually closed and level and pressure being controlled by RCIC. The MSIVs were closed to minimize the cool down rate and RCIC was started manually for level and pressure control. The Main Condenser remained available throughout the evolution and condenser vacuum is currently being maintained by the Mechanical Vacuum Pumps.</br>The Group 2 Isolation was verified with no discrepancies and was reset at approximately 2010.</br>All equipment operated as expected and there were no difficulties encountered during the evolution.</br>The TGF System has been secured and is in the process of being tagged out for repair.</br>The licensee has notified the NRC Resident Inspector.e has notified the NRC Resident Inspector. +
01:30:00, 7 November 2009 +
45,482 +
23:22:00, 6 November 2009 +
01:30:00, 7 November 2009 +
On November 6, 2009, at 1930 CST the react … On November 6, 2009, at 1930 CST the reactor was manually scrammed following a manual trip of the Main Turbine due to an un-isolable leak on the Turbine High Pressure Fluid System (TGF). The RO (Reactor Operator) scrammed the reactor when (reactor vessel water) level lowered below 12 inches on the Narrow Range Instruments. All Control Rods fully inserted and a Group 2 Isolation occurred when level reached 3 inches on the Narrow Range Instruments. Reactor level lowered to approximately 22 inches on the Wide Range Instruments and was recovered in a slow and deliberate manner in order to minimize the effect on the cool down rate because of low levels of decay heat in the fuel. The Reactor Feed System was used to initially recover level. At 2043, the plant was in Mode 3 with the inboard MSIVs manually closed and level and pressure being controlled by RCIC. The MSIVs were closed to minimize the cool down rate and RCIC was started manually for level and pressure control. The Main Condenser remained available throughout the evolution and condenser vacuum is currently being maintained by the Mechanical Vacuum Pumps.</br>The Group 2 Isolation was verified with no discrepancies and was reset at approximately 2010.</br>All equipment operated as expected and there were no difficulties encountered during the evolution.</br>The TGF System has been secured and is in the process of being tagged out for repair.</br>The licensee has notified the NRC Resident Inspector.e has notified the NRC Resident Inspector. +
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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>.
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01:30:00, 7 November 2009 +
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