ENS 40711
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ENS Event | |
|---|---|
17:07 Apr 28, 2004 | |
| Title | Unusual Event Decleared Due to an Electrical Failure in a Non-Vital Load Center Located in the Unit 2 Reactor Building |
| Event Description | On 04/28/04 at 1325 EDT, Susquehanna declared an Unusual Event due to an electrical failure in a power distribution panel at a non-vital load center located in the Unit 2 Reactor Building. The affected load center supplies electrical power to the Main Condenser Vacuum system causing plant operations to be reduced to 80% reactor power. Unit 1 has not been affected by this incident and Unit 2 remains stable at 80% reactor power.
The licensee terminated the Unusual Event at 1552 and is investigating the cause of the incident which appears to have been a phase-to-phase fault on the 13.8 KV load center feeder cable. Currently, load center 2B250 is being fed through an alternate feeder so that associated systems can be placed back in service. Unit 2 is making preparations to return to full power. There were no personnel injuries nor radioactive releases as a result of this event. The licensee notified the NRC Resident Inspector, Luzerne and Columbia county emergency management agencies, the Pennsylvania Emergency Management Agency and has issued a press release. Notified the following of the termination of the Unusual Event: R1DO(Barkley), DIRO (Frant), NRR (Marsh), DHS (E. McDonald) and FEMA (D. Barden). |
| Where | |
|---|---|
Susquehanna  Pennsylvania (NRC Region 1) | |
| Reporting | |
| Emergency class: | Unusual Event |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+-3.2 h-0.133 days <br />-0.019 weeks <br />-0.00438 months <br />) | |
| Opened: | James Williams 13:55 Apr 28, 2004 |
| NRC Officer: | Arlon Costa |
| Last Updated: | Apr 28, 2004 |
| 40711 - NRC Website
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Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (80 %) |
Susquehanna with 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration | |
WEEKMONTHYEARENS 564522023-04-04T23:15:0004 April 2023 23:15:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification ENS 527952017-06-08T19:27:0008 June 2017 19:27:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation, 10 CFR 50.72(b)(2)(iv)(A), System Actuation - ECCS Discharge Automatic Reactor Scram After Main Turbine Control Logic Loss of Power ENS 513752015-09-07T13:25:0007 September 2015 13:25:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification ENS 506902014-12-17T18:35:00017 December 2014 18:35:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Sewage Leak ENS 493442013-09-15T15:23:00015 September 2013 15:23:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared at Susquehanna Unit 2 Due to Flooding in a Rhr Pump Room ENS 485402012-11-27T22:20:00027 November 2012 22:20:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to a Fatality ENS 471862011-08-23T18:05:00023 August 2011 18:05:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Notification of an Unusual Event Due to a Seismic Event ENS 461642010-08-10T13:11:00010 August 2010 13:11:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Alert Declared Due to Freon-12 Leak in Reactor Building Chiller ENS 461072010-07-19T16:00:00019 July 2010 16:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to the Commonwealth of Pennsylvania Due to Tritium Discovered in Processed Water ENS 460572010-06-30T13:55:00030 June 2010 13:55:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Sulfuric Acid Spill Onsite ENS 457062010-02-17T19:20:00017 February 2010 19:20:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification to Pennslyvania Department of Environmental Protection Concerning Drinking Water Quality ENS 455342009-12-01T23:00:0001 December 2009 23:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Onsite Flooding Caused by Make-Up Supply Line Failure ENS 446032008-10-27T16:06:00027 October 2008 16:06:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Alert Declared Due to Oxygen Deficient Atmosphere in a Vital Area ENS 442572008-06-02T18:40:0002 June 2008 18:40:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Shipping Cask Arrives with a Loose Bolt ENS 439182008-01-18T22:03:00018 January 2008 22:03:00 10 CFR 20.1906(d)(2), 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Receipt of Package That Exceeded Allowable Contact Dose Rate ENS 435892007-08-23T17:00:00023 August 2007 17:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Involving a 70 Gallon Diesel Spill within 1 Mile of the Site Boundary ENS 430602006-12-21T19:00:00021 December 2006 19:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Actuation of Emergency Sirens ENS 430552006-12-18T16:00:00018 December 2006 16:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Actuation of Off-Site Emergency Sirens ENS 430112006-11-26T01:42:00026 November 2006 01:42:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Reactor Scram from Full Power Due to Generator Load Reject ENS 426422006-06-15T07:00:00015 June 2006 07:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation, 10 CFR 50.72(b)(2)(iv)(A), System Actuation - ECCS Discharge Reactor Scram While Shifting Power Supplies ENS 423792006-03-02T02:27:0002 March 2006 02:27:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Alert Declared Due to Halon Discharge in Security Control Center ENS 420342005-10-03T16:48:0003 October 2005 16:48:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Made to Pennsylvania Emergency Management Agency (Pema) ENS 417462005-06-06T16:33:0006 June 2005 16:33:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Automatic Reactor Scram Due to Apparent Generator Load Rejection ENS 416462005-04-28T11:19:00028 April 2005 11:19:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Unit 2 Manual Reactor Scram Due to Loss of Main Transformer Cooling ENS 414622005-03-04T20:10:0004 March 2005 20:10:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared ENS 412812004-12-22T20:00:00022 December 2004 20:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Made to Pennsylvania Emergency Management Agency (Pema) ENS 407772004-05-26T20:00:00026 May 2004 20:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Off Site Notification ENS 407112004-04-28T17:07:00028 April 2004 17:07:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Decleared Due to an Electrical Failure in a Non-Vital Load Center Located in the Unit 2 Reactor Building ENS 406162004-03-28T11:37:00028 March 2004 11:37:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Three Car Accident ENS 405712004-03-06T10:28:0006 March 2004 10:28:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification at Susquehanna Involving a Traffic Accident ENS 405642004-03-03T17:45:0003 March 2004 17:45:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of Injured Individual ENS 405542004-02-28T05:54:00028 February 2004 05:54:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to State Based on Medical Transport of Injured Worker ENS 405352004-02-21T15:05:00021 February 2004 15:05:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of Medical Event at Susquehanna ENS 405312004-02-18T05:00:00018 February 2004 05:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to Pema of Mislabeled Container ENS 404862004-01-29T01:33:00029 January 2004 01:33:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to Local Law Enforcement Due to Fire Brigade Activation ENS 404492004-01-15T00:50:00015 January 2004 00:50:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of Accident Involving 2 Trucks Carrying Empty New Fuel Shipping Containers ENS 403672003-12-02T19:15:0002 December 2003 19:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Onsite Fatality ENS 401472003-09-11T04:40:00011 September 2003 04:40:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Made to Pennsylvania Emergency Management Agency (Pema) 2023-04-04T23:15:00 | |
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