ML17135A032

NRR E-mail Capture - Request for Additional Information - McGuire TSTF-197

ML17135A032
Person / Time
Site:	Mcguire, McGuire
Issue date:	05/12/2017
From:	Michael Mahoney Plant Licensing Branch II
To:	Zaremba A Duke Energy Corp
References
MF9110, MF9111
Download: ML17135A032 (3)

Text

NRR-PMDAPEm Resource From: Mahoney, Michael Sent: Friday, May 12, 2017 9:07 AM To: Art Zaremba Cc: 'Edwards, Nicole D'

Subject:

Request for Additional Information - McGuire TSTF-197

Art, By letter dated January 11, 2017 (Agencywide Documents Access Management System (ADAMS) Accession No. ML17025A069), Duke Energy (the licensee), submitted an application to revise McGuire Nuclear Station, Units 1 and 2 (MNS) Technical Specifications (TS) to adopt multiple Technical Specification Task Force (TSTF) Travelers, specifically TSTF-197-A, Revision 2, Require containment closure when shutdown cooling requirements are not met, (CAC Nos. MF9110 and MF9111).

In order to complete its review, the U.S. Nuclear Regulatory Commission staff requests the following additional information. Please provide your response to the attached request for additional information within 30 days of the date of this correspondence.

RAI-1

The Improved Standard TS markups for TS 3.9.5 Required Action A.6.2 and TS 3.9.6 Required Action B.5.2, as included in TSTF-197-A for NUREG-1431, are proposed to read: Verify each penetration is capable of being closed by an OPERABLE Containment Purge and Exhaust Isolation System. The LAR proposes the new MNS TS 3.9.5 Required Action A.6.2 and TS 3.9.6 Required Action B.5.2 to deviate from the TSTF-197-A language, as follows: Verify each penetration is capable of being closed on a high containment radiation signal. It is stated, in part, in your application, MNS does not have a Containment Purge Exhaust Isolation System. However, section 9.4.5.2 of MNSs Updated Final Safety Analysis Report (USFAR) describes the Containment Purge and Ventilation System.

A. Explain why your application states that MNS does not have a Containment Purge and Exhaust System Isolation System when USFAR 9.4.5.2 suggests such a system exists.

B. Does MNS have a system that performs the function of containment purge and exhaust isolation?

C. If so, please explain why the proposed new MNS Required Actions A.6.2 and B.5.2 require verification that each penetration is capable of being closed on a high containment radiation signal, and not by the system that performs the function of containment purge and exhaust isolation.

RAI-2

TS 3.9.5, Condition A, Required Action A.4 and TS 3.9.6, Condition B, Required Action B.3 are proposed to be revised. Part of the proposed changes are to add new Required Actions A.6.2 and B.5.2. Required Actions A.6.2 and B.5.2 are proposed to state, Verify each penetration is capable of being closed on a high containment radiation signal, with a Completion Time of 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. Further, according to the licensee, the containment high radiation monitor is addressed in Selected Licensee Commitment (SLC) 16.7.10, Radiation Monitoring for Plant Operations, but not in TS.

Once this email is added to ADAMS, I will provide you with the accession number for your reference.

Mike 1

Michael Mahoney McGuire and Catawba Project Manager, LPLII-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Desk: (301)-415-3867 Email: Michael.Mahoney@NRC.GOV 2

Hearing Identifier: NRR_PMDA Email Number: 3510 Mail Envelope Properties (a689bad6017c49f088f07865951b5926)

Subject:

Request for Additional Information - McGuire TSTF-197 Sent Date: 5/12/2017 9:06:46 AM Received Date: 5/12/2017 9:06:47 AM From: Mahoney, Michael Created By: Michael.Mahoney@nrc.gov Recipients:

"'Edwards, Nicole D'" <Nicole.Edwards@duke-energy.com>

Tracking Status: None "Art Zaremba" <Arthur.Zaremba@duke-energy.com>

Tracking Status: None Post Office: R4PWMSMRS03.nrc.gov Files Size Date & Time MESSAGE 3032 5/12/2017 9:06:47 AM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received: