NL-16-033, Watts Bar, Unit 2 - Application to Modify Technical Specifications Regarding Steam Generator Minimum Narrow Range Level Error Correction

Watts Bar, Unit 2 - Application to Modify Technical Specifications Regarding Steam Generator Minimum Narrow Range Level Error Correction

ML16137A572
Person / Time
Site:	Watts Bar
Issue date:	05/16/2016
From:	Shea J W Tennessee Valley Authority
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
CNL-16-033, WBN-TS-16-07
Download: ML16137A572 (17)

Text

, 1101 Market Street, Chattanooga, Tennessee 37402

CNL-16-033

May 16, 2016

10 CFR 50.90

ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001

Watts Bar Nuclear Plant, Unit 2 Facility Operating License No. NPF-96 NRC Docket No. 50-391

References:

Letter from TVA to NRC, CNL-15-190, "Watts Bar Nuclear Plant Unit 2 - Submittal of Final Revision 0 of the Technical Specifications & Technical Specification Bases, and Final Revision 0 of the Technical Requirements Manual & Technical Requirements Manual Bases," dated September 23, 2015 (ML15267A183)

In accordance with the provisions of Title 10 of the Code of Federal Regulations (10 CFR) 50.90, "Application for amendment of license, construction permit, or early site permit," the Tennessee Valley Authority (TVA) is submitting a request for an amendment (WBN-TS-16-07) to Facility Operating License NFP-96 for the Watts Bar Nuclear Plant (WBN) Unit 2.

This license amendment request (LAR) proposes to amend the WBN Unit 2 Technical Specifications (TS) by correcting an administrative error in the initial submittal of the WBN Unit 2 Revision 0 TS (Reference) regarding the steam generator (SG) narrow range (NR) level specified in Surveillance Requirement (SR) 3.4.6.3. To correct this error, TVA is requesting the WBN Unit 2 SG narrow range NR level in SR 3.4.6.3 be changed from 32 percent (32%) to 6 percent (6%).

The value of 6% is correctly reflected in the WBN Unit 2 TS Limiting Condition for Operation (LCO) 3.4.7 and SRs 3.4.5.2 and 3.4.7.2. The purpose of this LCO and SRs is to specify under what conditions a SG is considered operable. As stated in the WBN TS Bases for SR 3.4.6.3, verification of the secondary side NR water level of each SG assures that the SG tubes will not become uncovered and that the SGs will be capable of performing their decay heat removal function. For the WBN Unit 2 SGs, this water level corresponds to a

value of 6% SG NR level. This LAR will correct the inaccurate value in SR 3.4.6.3. TVA has entered this error in the WBN TS in the TVA Corrective Action Program.

, 1101 Market Street, Chattanooga, Tennessee 37402

CNL-16-033

May 16, 2016

10 CFR 50.90

ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001

Watts Bar Nuclear Plant, Unit 2 Facility Operating License No. NPF-96 NRC Docket No. 50-391

References:

Letter from TVA to NRC, CNL-15-190, "Watts Bar Nuclear Plant Unit 2 - Submittal of Final Revision 0 of the Technical Specifications & Technical Specification Bases, and Final Revision 0 of the Technical Requirements Manual & Technical Requirements Manual Bases," dated September 23, 2015 (ML15267A183)

In accordance with the provisions of Title 10 of the Code of Federal Regulations (10 CFR) 50.90, "Application for amendment of license, construction permit, or early site permit," the Tennessee Valley Authority (TVA) is submitting a request for an amendment (WBN-TS-16-07) to Facility Operating License NFP-96 for the Watts Bar Nuclear Plant (WBN) Unit 2.

This license amendment request (LAR) proposes to amend the WBN Unit 2 Technical Specifications (TS) by correcting an administrative error in the initial submittal of the WBN Unit 2 Revision 0 TS (Reference) regarding the steam generator (SG) narrow range (NR) level specified in Surveillance Requirement (SR) 3.4.6.3. To correct this error, TVA is requesting the WBN Unit 2 SG narrow range NR level in SR 3.4.6.3 be changed from 32 percent (32%) to 6 percent (6%).

The value of 6% is correctly reflected in the WBN Unit 2 TS Limiting Condition for Operation (LCO) 3.4.7 and SRs 3.4.5.2 and 3.4.7.2. The purpose of this LCO and SRs is to specify under what conditions a SG is considered operable. As stated in the WBN TS Bases for SR 3.4.6.3, verification of the secondary side NR water level of each SG assures that the SG tubes will not become uncovered and that the SGs will be capable of performing their decay heat removal function. For the WBN Unit 2 SGs, this water level corresponds to a

value of 6% SG NR level. This LAR will correct the inaccurate value in SR 3.4.6.3. TVA has entered this error in the WBN TS in the TVA Corrective Action Program.