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This report is being made in accordance wi … This report is being made in accordance with 10CFR50.72 section (b)(3)(v)(D).</br>At 2345 (CDT) on 9/28/03, while performing Turbine Trip Testing, the required sequence of events failed to occur, and it was determined that a turbine trip would not occur when required by Technical Specification 3.3.2.2, Feedwater and Main Turbine High Water Level Trip. Condition B of Specification 3.3.2.2 was entered, requiring restoration (of) highwater level trip capability in two hours, and Condition C requiring that thermal power be reduced to less than 25% in four hours.</br>The feedwater and main turbine high water level trip instrumentation is assumed to be capable of providing a turbine trip in the design basis transient analysis for a feedwater controller failure, maximum demand event. The Level 8 trip indirectly initiates a reactor scram from the main turbine trip (above 30% RTP) and trips the feedwater pumps, thereby terminating the event. The reactor scram mitigates the reduction in MCPR (Minimum Critical Power Ratio). </br>Since the Turbine trip would not have occurred, the reactor scram would not have occurred. At 0530 on 9/29/03 reactor power was lowered to below 25%.</br>This event was determined to be reportable on 9/29/2003 at 1230 (CDT).</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector. +
04:45:00, 29 September 2003 +
40,205 +
15:22:00, 29 September 2003 +
04:45:00, 29 September 2003 +
This report is being made in accordance wi … This report is being made in accordance with 10CFR50.72 section (b)(3)(v)(D).</br>At 2345 (CDT) on 9/28/03, while performing Turbine Trip Testing, the required sequence of events failed to occur, and it was determined that a turbine trip would not occur when required by Technical Specification 3.3.2.2, Feedwater and Main Turbine High Water Level Trip. Condition B of Specification 3.3.2.2 was entered, requiring restoration (of) highwater level trip capability in two hours, and Condition C requiring that thermal power be reduced to less than 25% in four hours.</br>The feedwater and main turbine high water level trip instrumentation is assumed to be capable of providing a turbine trip in the design basis transient analysis for a feedwater controller failure, maximum demand event. The Level 8 trip indirectly initiates a reactor scram from the main turbine trip (above 30% RTP) and trips the feedwater pumps, thereby terminating the event. The reactor scram mitigates the reduction in MCPR (Minimum Critical Power Ratio). </br>Since the Turbine trip would not have occurred, the reactor scram would not have occurred. At 0530 on 9/29/03 reactor power was lowered to below 25%.</br>This event was determined to be reportable on 9/29/2003 at 1230 (CDT).</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector. +
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65 +
00:00:00, 29 September 2003 +
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22:44:39, 24 September 2017 +
15:22:00, 29 September 2003 +
true +
false +
0.443 d (10.62 hours, 0.0632 weeks, 0.0145 months) +
04:45:00, 29 September 2003 +
Feedwater + and Main Turbine +
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