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On 7/19/05 at 0345, maintenance technician … On 7/19/05 at 0345, maintenance technicians were performing a voltage check during an I&C surveillance when a lead slipped, making inadvertent contact within the panel. This resulted in shorting of a power connection and blowing a fuse. This fuse supplied initiation and trip logic components associated with the High Pressure Coolant Injection (HPCI) system, the 'A' Core Spray system, and the 'A' Residual Heat Removal (RHR) system. Loss of the HPCI system is reportable under 10 CFR 50.72(b)(3)(v) as a loss of a single train safety system required to mitigate the consequences of an accident.</br>Hope Creek entered Technical Specification (TS) 3.0.3 for HPCI inoperability with one Core Spray and one RHR system inoperable. Actions to replace the fuse and restore operability of the HPCI system were completed at 0909 on 7/19/05, allowing exit from TS 3.0.3. Actions to commence staffing for a shutdown and implement required procedures were implemented, however a power reduction was not initiated based on successful restoration.</br>The remaining retest activities associated with fuse restoration were completed for the 'A' Core Spray Loop and the 'A' RHR system at 0923 on 7/19/05, clearing the remaining Limiting Conditions for Operation associated with the fuse failure. No additional Emergency Core Cooling Systems or safety related equipment was inoperable during this time period.</br>The licensee notified the NRC Resident Inspector and Lower Alloways Creek Township.</br>* * * UPDATE PROVIDED BY DARON ZAKARIAN TO JEFF ROTTON AT 1331 EDT ON 08/05/05 * * *</br>Event # 41852, which was made by Hope Creek on July 19, 2005, at 1053, is being retracted.</br>Although HPCI was declared inoperable in accordance with the instrumentation Technical Specification due to the instrumentation that was inoperable as a result of the blown fuse, a subsequent review of the HPCI control circuitry determined that HPCI remained capable of automatically performing its safety function in response to any event for which it is credited. Since HPCI was able to perform its safety function, it is not reportable in accordance with 10 CFR 50.72(b)(3)(v) and this notification can be retracted.</br>The licensee will notify the NRC Resident Inspector.</br>Notified the R1DO (Gray). Resident Inspector.
Notified the R1DO (Gray).
07:45:00, 19 July 2005 +
41,852 +
10:53:00, 19 July 2005 +
07:45:00, 19 July 2005 +
On 7/19/05 at 0345, maintenance technician … On 7/19/05 at 0345, maintenance technicians were performing a voltage check during an I&C surveillance when a lead slipped, making inadvertent contact within the panel. This resulted in shorting of a power connection and blowing a fuse. This fuse supplied initiation and trip logic components associated with the High Pressure Coolant Injection (HPCI) system, the 'A' Core Spray system, and the 'A' Residual Heat Removal (RHR) system. Loss of the HPCI system is reportable under 10 CFR 50.72(b)(3)(v) as a loss of a single train safety system required to mitigate the consequences of an accident.</br>Hope Creek entered Technical Specification (TS) 3.0.3 for HPCI inoperability with one Core Spray and one RHR system inoperable. Actions to replace the fuse and restore operability of the HPCI system were completed at 0909 on 7/19/05, allowing exit from TS 3.0.3. Actions to commence staffing for a shutdown and implement required procedures were implemented, however a power reduction was not initiated based on successful restoration.</br>The remaining retest activities associated with fuse restoration were completed for the 'A' Core Spray Loop and the 'A' RHR system at 0923 on 7/19/05, clearing the remaining Limiting Conditions for Operation associated with the fuse failure. No additional Emergency Core Cooling Systems or safety related equipment was inoperable during this time period.</br>The licensee notified the NRC Resident Inspector and Lower Alloways Creek Township.</br>* * * UPDATE PROVIDED BY DARON ZAKARIAN TO JEFF ROTTON AT 1331 EDT ON 08/05/05 * * *</br>Event # 41852, which was made by Hope Creek on July 19, 2005, at 1053, is being retracted.</br>Although HPCI was declared inoperable in accordance with the instrumentation Technical Specification due to the instrumentation that was inoperable as a result of the blown fuse, a subsequent review of the HPCI control circuitry determined that HPCI remained capable of automatically performing its safety function in response to any event for which it is credited. Since HPCI was able to perform its safety function, it is not reportable in accordance with 10 CFR 50.72(b)(3)(v) and this notification can be retracted.</br>The licensee will notify the NRC Resident Inspector.</br>Notified the R1DO (Gray). Resident Inspector.
Notified the R1DO (Gray).
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries 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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00:00:00, 5 August 2005 +
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>.
22:40:27, 24 September 2017 +
10:53:00, 19 July 2005 +
true +
false +
0.13 d (3.13 hours, 0.0186 weeks, 0.00429 months) +
07:45:00, 19 July 2005 +
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.