ML18285A575

Supplement to License Amendment Request to Revise Technical Specifications Regarding Response Time Testing of Pressure Transmitters

ML18285A575
Person / Time
Site:	Palo Verde
Issue date:	10/12/2018
From:	Lacal M Arizona Public Service Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
102-07808-MLL/DD
Download: ML18285A575 (2)

Text

10 CFR 50.90 MARIA L. LACAL Senior Vice President, Nuclear Regulatory & Oversight Qaps Palo Verde Nuclear Generating Station P.O. Box 52034 Phoenix, AZ 85072 Mail Station 7605 102-07808-MLIVMDD Tel 623.393.6491 October 12, 2018 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001

Subject:

Palo Verde Nuclear Generating Station Units 1, 2, and 3 Docket Nos. STN 50-528, 50-529, and 50-530 Renewed Operating License Nos. NPF-41, NPF-51, NPF-74 Supplement to License Amendment Request to Revise Technical Specifications Regarding Response Time Testing of Pressure Transmitters In accordance with the provisions of Section 50.90 of Title 10 of the Code of Federal Regulations (10 CFR), Arizona Public Service Company (APS) submitted a license amendment request (LAR) to revise the Technical Specifications (TSs) for Palo Verde Nuclear Generating Station (PVNGS) Units 1, 2, and 3, by letter number 102-07703, dated May 25, 2018 [Agencywide Document Access and Management System (ADAMS) Accession number ML18145A303]. The LAR would revise TS requirements regarding response time testing of engineered safety features actuation system and reactor protective system pressure transmitters.

The PVNGS TSs currently authorize the elimination of periodic response time testing for specific transmitter models that have been reviewed and approved by the NRC staff. The specific vendor transmitter models that are exempt from periodic response time testing have become obsolete and are being replaced by new models of similar design and construction.

This letter confirms a clarification call held with the NRC staff on October 5, 2018, that APS is limiting the scope of the LAR to specific replacement model Rosemount pressure transmitters. APS is no longer seeking approval of an engineering evaluation methodology to permit APS to exempt future transmitter model changes from periodic response time testing without prior NRC approval.

No new commitments are being made in this letter. A copy of this letter is being forwarded to the Arizona Department of Health Services in accordance with 10 CFR 50.91(b)(1).

A member of the STARS Alliance LLC Callaway

• Diablo Canyon

• Palo Verde

• Wolf Creek

102-07808-MLL/MDD ATTN: Document Control Desk U. S. Nuclear Regulatory Commission Supplement to LAR to Revise TS Regarding Response Time Testing of Pressure Transmitters Page 2 Should you have any questions concerning the content of this letter, please contact Matthew S. Cox, Licensing Section Leader, Nuclear Regulatory Affairs, at (623) 393-5753.

I declare under penalty of perjury that the foregoing is true and correct.

Executed on: October 12, 2018 (Date)

Sincerely, A,,. 4.

MLL/MDD/CJS/sma cc: K. M. Kennedy NRC Region IV Regional Administrator M. D. Orenak NRC NRR Project Manager for PVNGS C. A. Peabody NRC Senior Resident Inspector for PVNGS B. Goretzki Arizona Department of Health Services (ADHS)