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{{#Regex_clear:On July 3, 2013, at 0741 ES … {{#Regex_clear:On July 3, 2013, at 0741 EST, the Indian Point Unit 2 CCR received a trip of both Main Boiler Feed Pumps (MBFP) and entered 2-AOP�FW-1, Loss of Feedwater. The unit was manually tripped at 0741 per 2-AOP-FW�1 due to the trip of both MBFPs. Operators entered E-O, Reactor Trip or Safety Injection. </br>All control rods fully inserted. All safety systems responded as expected. The Auxiliary Feedwater (AFW) System actuated as expected. Offsite power and plant electrical lineups are normal. No primary or secondary code safety valves lifted. The 23 and 24 Main Steam Isolation Valves (MSIV) failed closed as a result of the loss of Instrument Air (IA). The 21 and 22 MSIVs remain open with the Main Condensers being used for heat sink. The reactor is in Mode 3 and stable. Unit 3 was unaffected and remains at 100% power. </br>Preliminary investigations determined a two inch copper IA line in the switchyard which is normally buried had a failed coupling causing loss of IA to the main feedwater regulating valves. The IA line traversed an excavated area of the switchyard going to the Auxiliary Boiler Feed Pump (ABFP)</br>Building. AFW operated using the Nitrogen backup supply to ABFP control valves until Instrument Air was restored to the ABFP building. An investigation is in progress.</br>The licensee notified the NRC Resident Inspector. }}ee notified the NRC Resident Inspector. }} +
11:41:00, 3 July 2013 +
49,171 +
10:46:00, 3 July 2013 +
11:41:00, 3 July 2013 +
{{#Regex_clear:On July 3, 2013, at 0741 ES … {{#Regex_clear:On July 3, 2013, at 0741 EST, the Indian Point Unit 2 CCR received a trip of both Main Boiler Feed Pumps (MBFP) and entered 2-AOP�FW-1, Loss of Feedwater. The unit was manually tripped at 0741 per 2-AOP-FW�1 due to the trip of both MBFPs. Operators entered E-O, Reactor Trip or Safety Injection. </br>All control rods fully inserted. All safety systems responded as expected. The Auxiliary Feedwater (AFW) System actuated as expected. Offsite power and plant electrical lineups are normal. No primary or secondary code safety valves lifted. The 23 and 24 Main Steam Isolation Valves (MSIV) failed closed as a result of the loss of Instrument Air (IA). The 21 and 22 MSIVs remain open with the Main Condensers being used for heat sink. The reactor is in Mode 3 and stable. Unit 3 was unaffected and remains at 100% power. </br>Preliminary investigations determined a two inch copper IA line in the switchyard which is normally buried had a failed coupling causing loss of IA to the main feedwater regulating valves. The IA line traversed an excavated area of the switchyard going to the Auxiliary Boiler Feed Pump (ABFP)</br>Building. AFW operated using the Nitrogen backup supply to ABFP control valves until Instrument Air was restored to the ABFP building. An investigation is in progress.</br>The licensee notified the NRC Resident Inspector. }}ee notified the NRC Resident Inspector. }} +
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