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On April 9, 2012, at 0529 hours Eastern Da … On April 9, 2012, at 0529 hours Eastern Daylight Time (EDT), electrical power was lost to the 4160 V emergency bus E1. Activities to support performance of procedure OMST-DG11R, "DG-1 Loading Test," were in progress when technicians connected a recorder to the incorrect terminals of an under voltage relay on emergency bus El and caused the normal supply breakers for emergency bus El to open. Emergency Diesel Generator (EDG) 1 automatically started and re-energized emergency bus El per plant design.</br></br>This condition is being reported in accordance with 10 CFR 50.73(a)(2)(iv)(A) as an event that resulted in automatic actuation of a system specified in 10 CFR 50.73(a)(2)(iv)(B).</br></br>The root cause of this event is inadequate use of human performance tools when connecting recorders in preparation for performing OMST-DG11R. Corrective actions include revising the EDG loading test procedures to provide instructions on labeling cables and to incorporate a method to record cable assignments to respective procedural steps.ssignments to respective procedural steps. +
April 9, 2012 +
On April 9, 2012, at 0529 hours Eastern Da … On April 9, 2012, at 0529 hours Eastern Daylight Time (EDT), electrical power was lost to the 4160 V emergency bus E1. Activities to support performance of procedure OMST-DG11R, "DG-1 Loading Test," were in progress when technicians connected a recorder to the incorrect terminals of an under voltage relay on emergency bus El and caused the normal supply breakers for emergency bus El to open. Emergency Diesel Generator (EDG) 1 automatically started and re-energized emergency bus El per plant design.</br></br>This condition is being reported in accordance with 10 CFR 50.73(a)(2)(iv)(A) as an event that resulted in automatic actuation of a system specified in 10 CFR 50.73(a)(2)(iv)(B).</br></br>The root cause of this event is inadequate use of human performance tools when connecting recorders in preparation for performing OMST-DG11R. Corrective actions include revising the EDG loading test procedures to provide instructions on labeling cables and to incorporate a method to record cable assignments to respective procedural steps.ssignments to respective procedural steps. +
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05:20:01, 1 December 2017 +
June 7, 2012 +
April 9, 2012 +
JUN 0 7 2012 <br/>SERIAL: BSEP 12-00 … JUN 0 7 2012 <br/>SERIAL: BSEP 12-0061<br/> 10 CFR 50.73 <br/>U. S. Nuclear Regulatory Commission <br/>ATTN: Document Control Desk <br/>Washington, DC 20555-0001 <br/>Subject: Brunswick Steam Electric Plant, Unit No. 1 and 2 <br/>Renewed Facility Operating License Nos. DPR-71 and DPR-62 <br/>Docket Nos. 50-325 and 50-324 <br/>Licensee Event Report 1-2012-003 <br/>Ladies and Gentlemen: <br/>In accordance with the Code of Federal Regulations, Title 10, Part 50.73, Carolina Power <br/>& Light Company, now doing business as Progress Energy Carolinas, Inc., submits the <br/>enclosed Licensee Event Report (LER). This report fulfills the requirement for a written <br/>report within sixty (60) days of a reportable occurrence. <br/>Please refer any questions regarding this submittal to Mr. Lee Grzeck, Acting Supervisor <br/>Licensing/Regulatory Programs, at (910) 457-2487. <br/>Sincerely, <br/>/11- 01 <br/>Joseph M. Frisco, Jr. <br/>Plant General Manager <br/>Brunswick Steam Electric Plant <br/>MAT/mat <br/>Enclosure: <br/>Licensee Event Report <br/>Progress Energy Carolinas, Inc. <br/>Brunswick Nuclear Plant <br/>P.O. Box 10429 </br><br/>Southport, NC 28461 </br><br/>Document Control Desk <br/>BSEP 12-0061 / Page 2 <br/>cc (with enclosure): <br/>U. S. Nuclear Regulatory Commission, Region II </br><br/>ATTN: Mr. Victor M. McCree, Regional Administrator </br><br/>245 Peachtree Center Ave. N.E., Suite 1200 </br><br/>Atlanta, GA 30303-1257 </br><br/>U. S. Nuclear Regulatory Commission </br><br/>ATTN: Mr. Philip B. O'Bryan, NRC Senior Resident Inspector </br><br/>8470 River Road </br><br/>Southport, NC 28461-8869 </br><br/>U. S. Nuclear Regulatory Commission (Electronic Copy Only) </br><br/>ATTN: Mrs. Farideh E. Saba (Mail Stop OWFN 8G9A) </br><br/>11555 Rockville Pike </br><br/>Rockville, MD 20852-2738 </br><br/>Chair - North Carolina Utilities Commission <br/>P.O. Box 29510 </br><br/>Raleigh, NC 27626-0510 </br><br/>ENRC FORM 366U U.S. NUCLEAR REGULATORY COMMISSION <br/>(10-2010) <br/>LICENSEE EVENT REPORT (LER) <br/>(See reverse for required number of <br/>digits/characters for each block) <br/>1. FACILITY NAME <br/>Brunswick Steam Electric Plant (BSEP), Unit 1 <br/>4. TITLE <br/>Valid Emergency Diesel Generator Actuation <br/>APPROVED BY OMB: NO. 3150-0104<br/>EEXPIRES: 10/31/2013 <br/>Estimated burden per response to comply with this mandatory <br/>collection request: 80 hours. Reported lessons learned are <br/>incorporated into the licensing process and fed back to industry. Send <br/>comments regarding burden estimate to the FOIA/Privacy Section (T-5 <br/>F53), U.S. Nuclear Regulatory Commission, Washington, DC 20555<br/>0001, or by internet e-mail to infocollects.resource@nrc.gov, and to <br/>the Desk Officer, Office of Information and Regulatory Affairs, NEOB<br/>10202, (3150-0104), Office of Management and Budget, Washington, <br/>DC 20503. If a means used to impose an information collection does <br/>not display a currently valid OMB control number, the NRC may not <br/>conduct or sponsor, and a person is not required to respond to, the <br/>information collection. <br/>2. DOCKET NUMBER 3. PAGE <br/>05000325 1 of 3esk Officer, Office of Information and Regulatory Affairs, NEOB<br/>10202, (3150-0104), Office of Management and Budget, Washington, <br/>DC 20503. If a means used to impose an information collection does <br/>not display a currently valid OMB control number, the NRC may not <br/>conduct or sponsor, and a person is not required to respond to, the <br/>information collection. <br/>2. DOCKET NUMBER 3. PAGE <br/>05000325 1 of 3
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