RA-22-0175, Post Accident Monitoring (PAM) Instrumentation Report

Post Accident Monitoring (PAM) Instrumentation Report

ML22153A015
Person / Time
Site:	Brunswick
Issue date:	06/01/2022
From:	Dewire M Duke Energy Progress
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RA-22-0175
Download: ML22153A015 (2)

Text

Brunswick Nuclear Plant 8470 River Rd SE Southport, NC 28461 June 1, 2022 Serial: RA-22-0175 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001

Subject:

Brunswick Steam Electric Plant, Unit No. 2 Renewed Facility Operating License No. DPR-62 Docket No. 50-324 Post Accident Monitoring (PAM) Instrumentation Report Ladies and Gentlemen:

Duke Energy Progress, LLC (Duke Energy), is providing this Post Accident Monitoring (PAM)

Instrumentation Report in accordance with Brunswick Steam Electric Plant, Unit No. 2, Technical Specification (TS) 5.6.6, Post Accident Monitoring (PAM) Instrumentation Report. As required by TS 5.6.6, this report is being submitted within 14 days following entry into TS Limiting Condition for Operation (LCO) 3.3.3.1, Post Accident Monitoring (PAM)

Instrumentation, Condition B.

At 04:40 on May 3, 2022, TS LCO 3.3.3.1, Post Accident Monitoring (PAM) Instrumentation, Condition A, was entered as a result of losing position indication for Primary Containment Isolation Valve (PCIV) 2-B21-F058M, Jet Pump #16 Flow Low Pressure Excess Flow Check Valve (EFCV) . TS LCO 3.3.3.1, Condition A, requires position indication be restored within 30 days. Initial troubleshooting determined that the loss of position indication is likely a result of an issue with the EFCVs internal reed switch. Additional troubleshooting and repair activities require Unit 2 be shutdown. As a result, position indication was not restored within 30 days per TS LCO 3.3.3.1, Condition A, and Condition B was entered requiring this report.

Duke Energy plans to complete repair activities to restore PCIV 2-B21-F058M position indication during the next Unit 2 refueling outage, scheduled for April 2023. Until position indication is restored, PCIV 2-B21-F058M position indication is determined by Jet Pump #16 flow indication which is checked once per day, at a minimum, per procedure 0PT-13.1, Reactor Recirculation Jet Pump Operability, to ensure conformance with the requirements of Unit 2 TS Surveillance Requirement 3.4.2.1 for jet pump operability.