HNP-16-046, License Amendment Request for Main Steam Safety Valve Lift Setting Tolerance Change
| ML16161A359 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 06/08/2016 |
| From: | Bradley Jones Duke Energy Progress |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| HNP-16-046 | |
| Download: ML16161A359 (2) | |
Text
ef_~ DUKE
~ ENERGYqp JUN 0 8 2016 Serial: HNP-16-046 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Shearon Harris Nuclear Power Plant, Unit 1 Docket No. 50-400 Renewed License No. NPF-63 Bentley K. Jones Director, Organizational Effectiveness Harris Nuclear Plant 5413 Shearon Harris Rd New Hill NC 27562-9300 919.362.2305 10 CFR 50.90
Subject:
License Amendment Request for Main Steam Safety Valve Lift Setting Tolerance Change Ladies and Gentlemen:
By letter dated December 17, 2015 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML15362A169), Duke Energy Progress, Inc. (Duke Energy), requested a license amendment to the Technical Specifications (TS) for the Harris Nuclear Plant, Unit 1 to revise the as-found lift setting tolerance for main steam line code safety valves (MSSVs) in TS
- 3. 7.1.1, Table 3. 7-2, from +/- 1 % to +/- 3%. To support the MSSV setpoint tolerance change, changes are required to TS 2.2.1, Table 2.2-1. Specifically, the reactor trip system instrumentation trip setpoint for pressurizer water level-high percentage of the instrument span is reduced from 92% to 87%. Further, the allowable value of the instrument span is requested to be reduced from 93.5% to 88.5%. A change to reduce the maximum pressurizer water level limiting condition of operation from less than or equal to 92% of indicated span to less than or equal to 75% of indicated span, which requires a change to TS 3.4.3, is also proposed with this change.
The letter identified above requested that the proposed amendment be approved by June 17, 2016. The purpose of this letter is to acknowledge that based upon a change in plant needs, an approval date of August 1, 2016 is acceptable to Duke Energy.
This document contains no regulatory commitments. Should you have any questions regarding this submittal, please contact John Caves, Manager - Regulatory Affairs, at (919) 362-2406.
Sincerely, cc:
Mr. J. D. Austin, NRG Sr. Resident Inspector, HNP Ms. M. Barillas, NRC Project Manager, HNP NRC Regional Administrator, Region II
Bentley K. Jones Director, Organizational Effectiveness Harris Nuclear Plant 5413 Shearon Harris Rd New Hill NC 27562-9300 919.362.2305 10 CFR 50.90 Serial: HNP-16-046 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Shearon Harris Nuclear Power Plant, Unit 1 Docket No. 50-400 Renewed License No. NPF-63
Subject:
License Amendment Request for Main Steam Safety Valve Lift Setting Tolerance Change Ladies and Gentlemen:
By letter dated December 17, 2015 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML15362A169), Duke Energy Progress, Inc. (Duke Energy), requested a license amendment to the Technical Specifications (TS) for the Harris Nuclear Plant, Unit 1 to revise the as-found lift setting tolerance for main steam line code safety valves (MSSVs) in TS 3.7.1.1, Table 3.7-2, from +/- 1% to +/- 3%. To support the MSSV setpoint tolerance change, changes are required to TS 2.2.1, Table 2.2-1. Specifically, the reactor trip system instrumentation trip setpoint for pressurizer water level-high percentage of the instrument span is reduced from 92% to 87%. Further, the allowable value of the instrument span is requested to be reduced from 93.5% to 88.5%. A change to reduce the maximum pressurizer water level limiting condition of operation from less than or equal to 92% of indicated span to less than or equal to 75% of indicated span, which requires a change to TS 3.4.3, is also proposed with this change.
The letter identified above requested that the proposed amendment be approved by June 17, 2016. The purpose of this letter is to acknowledge that based upon a change in plant needs, an approval date of August 1, 2016 is acceptable to Duke Energy.
This document contains no regulatory commitments. Should you have any questions regarding this submittal, please contact John Caves, Manager - Regulatory Affairs, at (919) 362-2406.
Sincerely, Bentley K. Jones cc:
Mr. J. D. Austin, NRC Sr. Resident Inspector, HNP Ms. M. Barillas, NRC Project Manager, HNP NRC Regional Administrator, Region II