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At 0352 the 2C 125VDC battery charger fail … At 0352 the 2C 125VDC battery charger failed. Fuses internal to the charger were found blown. Technical Specifications require restoration of the charger within 2 hrs or enter Mode 3 within the next 12 hrs and Mode 4 within the next 36 hrs. Investigation has not been able to restore the charger, and therefore the shutdown of the unit has commenced. Loads are currently being carried by the batteries, and personnel are monitoring battery voltage. Initial investigation has not identified any generic issues or any indication of tampering.</br>This event is a Technical Specification required shutdown, and is reportable as a four hour ENS Notification under 10 CFR 50.72(b)(2)(i). Additionally, this is a voluntary notification due to an anticipated press release associated with the downpower towards unit shutdown.</br>There is evidence of degraded insulation on wires inside the affected battery charger. Battery loads are very small with an initial estimate of battery life at 80 hours. All safety systems are operable. There is no impact on Unit 1.</br>Unit 2 is expected to reach Mode 3 at 1720 on 4/10/05.</br>The NRC Resident Inspector has been notified. State (FEMA) will be notified.</br>* * * UPDATE PROVIDED BY LICENSEE (HUFFORD) TO NRC (HELD) AT 2030 ON 4/10/05 * * *</br>At 17:28 the plant completed a normal reactor shutdown and entered Mode 3 in accordance with plant procedures to fulfill the requirements of Technical Specification 3.8.4. There were no ECCS initiations and lowest water level was approximately -4 inches.</br>The licensee reported that the 2C battery charger was back in service but remained in the LCO due to battery requirements. They are also completing engineering evaluations for extent of condition. </br>The NRC Resident Inspector was notified.</br>R1DO (Noggle) notified.</br>* * * UPDATE PROVIDED BY LICENSEE (KLINEFELTER) TO NRC (HELD) AT 1710 ON 4/12/05 * * *</br>At 16:28 on April 12th, 2005 Susquehanna Unit 2 entered Mode 2 (Start-up) following the completion of repairs to the failed 125VDC battery charger and inspection to the remaining 3 Unit 2 125VDC battery chargers. A courtesy call was made (to) the Pennsylvania Emergency Management Agency. An informational press release will be made.</br>The NRC Resident Inspector was notified by the licensee. </br>R1DO (White) was notified.the licensee.
R1DO (White) was notified.
15:50:00, 10 April 2005 +
41,585 +
12:08:00, 10 April 2005 +
15:50:00, 10 April 2005 +
At 0352 the 2C 125VDC battery charger fail … At 0352 the 2C 125VDC battery charger failed. Fuses internal to the charger were found blown. Technical Specifications require restoration of the charger within 2 hrs or enter Mode 3 within the next 12 hrs and Mode 4 within the next 36 hrs. Investigation has not been able to restore the charger, and therefore the shutdown of the unit has commenced. Loads are currently being carried by the batteries, and personnel are monitoring battery voltage. Initial investigation has not identified any generic issues or any indication of tampering.</br>This event is a Technical Specification required shutdown, and is reportable as a four hour ENS Notification under 10 CFR 50.72(b)(2)(i). Additionally, this is a voluntary notification due to an anticipated press release associated with the downpower towards unit shutdown.</br>There is evidence of degraded insulation on wires inside the affected battery charger. Battery loads are very small with an initial estimate of battery life at 80 hours. All safety systems are operable. There is no impact on Unit 1.</br>Unit 2 is expected to reach Mode 3 at 1720 on 4/10/05.</br>The NRC Resident Inspector has been notified. State (FEMA) will be notified.</br>* * * UPDATE PROVIDED BY LICENSEE (HUFFORD) TO NRC (HELD) AT 2030 ON 4/10/05 * * *</br>At 17:28 the plant completed a normal reactor shutdown and entered Mode 3 in accordance with plant procedures to fulfill the requirements of Technical Specification 3.8.4. There were no ECCS initiations and lowest water level was approximately -4 inches.</br>The licensee reported that the 2C battery charger was back in service but remained in the LCO due to battery requirements. They are also completing engineering evaluations for extent of condition. </br>The NRC Resident Inspector was notified.</br>R1DO (Noggle) notified.</br>* * * UPDATE PROVIDED BY LICENSEE (KLINEFELTER) TO NRC (HELD) AT 1710 ON 4/12/05 * * *</br>At 16:28 on April 12th, 2005 Susquehanna Unit 2 entered Mode 2 (Start-up) following the completion of repairs to the failed 125VDC battery charger and inspection to the remaining 3 Unit 2 125VDC battery chargers. A courtesy call was made (to) the Pennsylvania Emergency Management Agency. An informational press release will be made.</br>The NRC Resident Inspector was notified by the licensee. </br>R1DO (White) was notified.the licensee.
R1DO (White) was notified.
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00:00:00, 12 April 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>.
02:21:16, 2 March 2018 +
12:08:00, 10 April 2005 +
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-0.154 d (-3.7 hours, -0.022 weeks, -0.00507 months) +
15:50:00, 10 April 2005 +
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