ML13098A029

Palo Verde, Units 1, 2 & 3, and Independent Spent Fuel Storage Installation (ISFSI) - Submittal of 10 CFR 50.59, 10 CFR 72.48, and Commitment Change Reports (January 2012 - December 2012)

ML13098A029
Person / Time
Site:	Palo Verde
Issue date:	03/29/2013
From:	Weber T N Arizona Public Service Co
To:	Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation
References
102-06678-TNW/RKR/KAR
Download: ML13098A029 (5)

Text

10 CFR 50.59 10 CFR 72.48 9)aps Palo Verde Nuclear Generating Station PO Box 52034 Phoenix, Arizona 85072-2034 102-06678-TNW/RKR/KAR March 29, 2013 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

Subject:

Palo Verde Nuclear Generating Station (PVNGS)Units 1, 2, & 3 and Independent Spent Fuel Storage Installation (ISFSI)Docket Nos. STN 50-528/529/530 and 72-44 10 CFR 50.59, 10 CFR 72.48, and Commitment Change Reports (January 2012 -December 2012)Enclosed please find the Arizona Public Service Company (APS) 10 CFR 50.59 Report for the period of January 1, 2012, through December 31, 2012.In accordance with 10 CFR 50.59(d)(2), APS is providing a brief description of each change and a summary of the evaluation required by 10 CFR 50.59(d)(1) for each change. This report contains all evaluations written during 2012, regardless of the implementation status of the evaluated action, and is included as an enclosure to this letter.In accordance with 10 CFR 72.48(d)(2), APS is reporting that there were no changes completed during the period that were required to be reported pursuant to 10 CFR 72.48.In accordance with commitment management program requirements, APS is reporting that no commitment changes have been made for the period that were not previously submitted to the NRC.No new commitments are being made to the NRC by this letter. Should you need further information regarding this submittal, please contact Robert K. Roehler, Licensing Section Leader, at (623) 393-5241.Sincerely, 0"4, WO&I --Thomas N. Weber Department Leader, Regulatory Affairs TNW/RKR/KAR/hsc Enclosure Acronym/Abbreviation List and 10 CFR 50.59 Report A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway a Comanche Peak

• Diablo Canyon e Palo Verde e San Onofre e South Texas

• Wolf Creek 102-06678-TNW/RKR/KAR March 29, 2013 NRC Document Control Desk Annual 10 CFR 50.59, 10 CFR 72.48, and Commitment Change Report (January 2012- December 2012)Page 2 cc: E. E. Collins Jr.J. K. Rankin M. A. Brown V. L. Ordaz NRC Region IV Regional Administrator NRC NRR Project Manager for PVNGS NRC Senior Resident Inspector for PVNGS Director, Division of Spent Fuel Storage and Transportation ENCLOSURE PALO VERDE NUCLEAR GENERATING STATION ACRONYM/ABBREVIATION LIST and 10 CFR 50.59 Report January 2012 -December 2012 ACRONYMN/ABBREVIATION LIST (Acronyms included in calculation or document numbers are not included in this list)DMWO Design Modification Work Order LDCR Licensing Document Change Request PROC Procedure SABD Safety Analysis Basis Document UFSAR Updated Final Safety Analysis Report 0 CFR 50.59 Report (January 2012 throuqh December 2012)Log Doc Doc Number Description Summary Type E-07-0006 DMWO 2859190 Replaces emergency diesel generator voltage regulating panel. This change does not require prior Rev. 4 The new panel includes two automatic voltage regulators and NRC approval in accordance with 10 two Digital Reference Units that replace an automatic and a CFR 50.59(c)(1).

manual voltage regulators and motor operated potentiometers in the old panel.E-10-0007 LDCR 10-F047 Evaluates the second cycle use of eight (8) Westinghouse lead This change does not require prior Rev. 1 use assemblies (LUAS) in the Palo Verde Unit 3 Cycle 17 NRC approval in accordance with 10 (U3C17) Core. Of concern was the 4 degree F increase in peak CFR 50.59(c)(1).

clad temperature in the emergency core cooling system performance evaluation models and the increase in peak cladding oxidation upon fuel design limits.E-10-0008 DMWO 2641860 Upgrades the existing Control Element Drive Mechanism This change does not require prior Rev. 2 Control System. NRC approval in accordance with 10 CFR 50.59(c)(1).

E-1 1-0008 SABD 2.02.16 CECORLIB code is being modified to replace the CECORLIB-This change does not require prior Rev 2 4.3 computer code with the CECORLIB-4.4 computer code. Also NRC approval in accordance with 10 replaces the 25 AXIAL NODE SIMULATE-3 cases used for CFR 50.59(c)(1).

generating CECOR coefficients with 50 axial node Simulate-3 cases.E-12-0001 PROC 40AL-9RK4A Temporarily lowers the Pressurizer Pressure Control System This change does not require prior Rev 35 (PPCS) master setpoint in response to Pressurizer Safety Valve NRC approval in accordance with 10 (PSV) leakage. CFR 50.59(c)(1).

E-12-0002 DMWO 3304346 Adds a bypass valve and piping around spray pond (SP) flow This change does not require prior LDCR 11-F054 control orifices and reducing the size of the existing orifices.

NRC approval in accordance with 10 LDCR 12-F008 This allows for increased flow following a postulated accident, CFR 50.59(c)(1).

allowing closure of the bypass valves later in the event to maintain ultimate heat sink inventory requirements.

E-12-0004 PROC 40OP-9PNO1 To prevent spurious transfer, a compensatory action was This change does not require prior Rev 10 implemented to disable the automatic static transfer switch for NRC approval in accordance with 10 the Class 1E instrument inverter 3E-PNA-N11.

Manual action CFR 50.59(c)(1).

would be required to transfer power to the voltage regulator if there was an actual inverter failure.E-12-0005 Analysis CN-APS-006 New analysis for UFSAR section 15.4.7, Inadvertent Loading of This change does not require prior CN-APS-007 a Fuel Assembly into the Improper Position.

Updates the NRC approval in accordance with 10 LDCR 12-F027 analysis of record (AOR) for this event. CFR 50.59(c)(1).

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