NL-13-0849, Post Accident Monitoring Report

Post Accident Monitoring Report

ML13116A343
Person / Time
Site:	Farley
Issue date:	04/26/2013
From:	Pierce C Southern Nuclear Operating Co
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
NL-13-0849
Download: ML13116A343 (4)

Text

Charles R. Pierce Southern Nuclear Regulatory Affairs Director Operating Company, Inc.

40 Inverness Center Parkway Post Office Box 1295 Birmingham, Alabama 35201 Tel 205. 992.7872 Fax 205.992.7601 April 26, 2013 SOUIHERN ' \

COMPANY Docket No.: 50-348 NL-13-0849 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001 Joseph M. Farley Nuclear Plant - Unit 1 Post Accident Monitoring Report Ladies and Gentlemen :

In accordance with the requirements of Joseph M. Farley Nuclear Plant Technical Specification 5.6.8, the enclosed Post Accident Monitoring Report is submitted.

This letter contains no NRC commitments. If you have any questions, please contact Doug McKinney at (205) 992-5982.

Sincerely, C. R. Pierce Regulatory Affairs Director CRPIWNNlc

Enclosure:

Post Accident Monitoring Report

U. Nuclear Regulatory Commission NL-13-0849 Page 2 cc:

Mr. Kuczynski, Chairman, President & CEO Mr. D. G. Executive President & Chief Nuclear Officer Mr. T. A. Lynch, Vice - Farley Mr. B. L. Ivey, Vice President - Regulatory Affairs Mr. J. Adams, President Operations RTYPE: CFA04.054 U. S. Nuclear Regulatory Commission Mr. V. M. McCree, Regional Administrator Ms. A. Brown, NRR Project Manager - Farley Mr. P. K. Niebaum, Senior Resident - Farley Mr. J. Sowa, Resident - Farley

Joseph M. Nuclear Plant - Unit 1 Post Accident Monitoring Report Enclosure Post Accident Monitoring Report

Joseph M. Farley Nuclear Plant - Unit 1 Post Accident Monitoring Report Enclosure Post Accident Monitoring Report This Report is being submitted due to Unit 1 Condensate Storage Tank Transmitter 6 not being restored to operable status within the time required by Technical Specification (TS) TS 3.3.3 requires that instrument be restored to operable status within 30 days. If restored within the 30 day period then a Post Accident Monitoring Report is required to be submitted within following 14 per On March 13, pm, with Unit 1 in Mode 1 at 100 percent power, the Unit 1 Condensate Storage Tank Transmitter LT-516 was declared inoperable due to control room operators observing erratic indication.

Repair work commenced on April 8, 2013 work order SNC 472925. Initial attempts at by replacement of the transmitter and power supply card were not successful. Engineering personnel were then engaged to develop and implement a troubleshooting process which determined that the erratic indication was an intermittent open or ground in the field cabling the control room and the Condensate Storage Tank. The of the field cabling could not be completed within the 30 day Condition Report 622666 generated to document the untimely scheduling of repair and Technical Evaluation 623278 has assigned to establish expectations for scheduling the repair of Technical Specification equipment.

Continued troubleshooting on April 22, 2013 identified a 1"I"'.....*<>t1"'1"t located inside a splice box in Unit 1 Service Water Valve Box 4B. On April 23, 2013 the degraded splice was repaired work SNC 479291. Level Transmitter 6 was returned to service and the Technical Specification Required Action Statement was cleared at 0500 on April 24, 3.

While LT-516 was out of service, alternate indication of Condensate Storage level was provided by a redundant safety related level transmitter (LT-515) an related (LT-501).