ML14198A391

2014/07/15 NRR E-mail Capture - Watts Bar 2 - RAIs - Developmental Tech Specs Rev I

ML14198A391
Person / Time
Site:	Watts Bar
Issue date:	07/15/2014
From:	Miernicki M J Watts Bar Special Projects Branch
To:	Arent G P, Bryan R H Tennessee Valley Authority
References
Download: ML14198A391 (4)

Text

1 NRR-PMDAPEm Resource From: Miernicki, Michael Sent: Tuesday, July 15, 2014 10:03 AM To: garent@tva.gov; rhbryan@tva.gov Cc: Quichocho, Jessie; Poole, Justin; T horp, John; Rahn, David; Lingam, Siva

Subject:

Watts Bar 2 - RAIs - Developmental Tech Specs Rev I Attachments:RAI WBN2 T.S, Rev I - EICB.docxAttached please find RAIs from the Instrument and Controls Branch regarding Watts Bar 2 Developmental Technical Specifications Revision I. Please acknowledge receipt of these questions, and that they contain no proprietary information. Please provide your responses within 30 days.

Mike Michael J. Miernicki Sr. Project Manager NRC/NRR/DORL/LP-WB 301-415-2304

Hearing Identifier: NRR_PMDA Email Number: 1431 Mail Envelope Properties (Michael.Miernicki@nrc.gov20140715100200)

Subject:

Watts Bar 2 - RAIs - Developmental Tech Specs Rev I Sent Date: 7/15/2014 10:02:31 AM Received Date: 7/15/2014 10:02:00 AM From: Miernicki, Michael Created By: Michael.Miernicki@nrc.gov Recipients: "Quichocho, Jessie" <Jessie.Quichocho@nrc.gov> Tracking Status: None "Poole, Justin" <Justin.Poole@nrc.gov>

Tracking Status: None "Thorp, John" <John.Thorp@nrc.gov> Tracking Status: None "Rahn, David" <David.Rahn@nrc.gov> Tracking Status: None "Lingam, Siva" <Siva.Lingam@nrc.gov>

Tracking Status: None "garent@tva.gov" <garent@tva.gov> Tracking Status: None "rhbryan@tva.gov" <rhbryan@tva.gov> Tracking Status: None Post Office: Files Size Date & Time MESSAGE 395 7/15/2014 10:02:00 AM RAI WBN2 T.S, Rev I - EICB.docx 59568

Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received:

REQUEST FOR ADDITIONAL INFORMATION REVIEW OF DEVELOPMENTAL TECHNICAL SPECIFICATIONS REV. I WATTS BAR NUCLEAR PLANT UNIT 2 DOCKET NUMBER 50-391 BACKGROUND By letter dated June 16, 2014 (Agencywide Documents Access and Management System Accession No. ML14169A525), Tennessee Valley Authority (the applicant) submitted developmental Revision I of the Watts Bar Unit 2 Technical Specifications, for review and licensing by the U.S. Nuclear Regulatory Commission (NRC).

The NRC staff has reviewed Technical Specification Sections 3.3, 3.9.3, and 5.7 which the applicant provided, and determined that additional information is required in order to complete the review. In order for the NRC staff to complete its review of the document listed above, please respond to the following questions and provide associated additional information:

QUESTION 1 On Table 3.3.1-1 (TS page 3.3-22), Note 2, Overpower T equation, the sign before K6 was changed from "-" to "+". The staff needs clarification from the applicant as to the reasons for the change. Watts Bar 2 TS, Rev I:

Watts Bar 2 TS, Rev A:

QUESTION 2 On Table 3.3.2-1 (page 3.3-39), Function 8 (ESFAS Interlocks), b (Pressurizer Pressure P-11), (2) (Enable Manual Block of SI), the allowable value was changed from

" 1956.8 psig" to "1956.8 psig". The staff needs clarification from the applicant as to the reasons for the change.

QUESTION 3 TS 3.3.8, "Auxiliary Building Gas Treatment System (ABGTS) Actuation Instrumentation," has several changes related to the elimination (from Table 3.3.8-1) of the Fuel Pool Area Monitors during movement of irradiated fuel assemblies in the spent fuel pool area. Condition C in TS revision A has been removed (Condition D in TS revision A is now Condition C in TS revision H) and SR 3.3.8.1, SR 3.3.8.2 and SR 3.3.8.4 in TS revision A have been removed (SR 3.3.8.3 in TS revision A is now SR 3.3.8.1 in TS revision H). EICB staff is not aware of the reasons for this change. Please provide an explanation of the reason for this change QUESTION 4

On Table 3.3.1-1 (page 3.3-18), Function 14 (Turbine Trip), a (Low Fluid Oil Pressure), SR 3.3.1.10(b)(c) was added in revision G (as a correction of a typo). However, it was removed in revision I, even though the page remains marked as revision G. This SR is for the performance of a channel calibration. The staff needs clarification from the applicant as to the reasons for the change.