ML20028D540

Owner'S Activity Report Number U3R21

ML20028D540
Person / Time
Site:	Palo Verde
Issue date:	01/24/2020
From:	Dilorenzo M Arizona Public Service Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
102-08048-MDD/MSC
Download: ML20028D540 (6)

Text

10 CFR 50.55a Oaps Palo Verde Nuclear Generating Station P.O. Box 52034 Phoenix, AZ 85072 102-08048-MDD/MSC Mail Station 7636 January 24, 2020 Tel: (623) 393-3495 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

Subject:

Palo Verde Nuclear Generating Station Unit 3, Docket No. STN 50-530 Fourth 10-Year Interval, First Period:

Owner's Activity Report Number U3R21 Pursuant to 10 CFR 50.55a and in accordance with the American Society of Mechanical Engineers Boiler and Pressure Vessel Code Case N-532-5, Arizona Public Service Company hereby submits the Owner's Activity Report (Form OAR-1) for Unit 3 refueling outage 21 (U3R21). The outage ended on November 21, 2019.

No commitments are being made to the NRC by this letter. Should you have any questions concerning the content of this letter, please contact Matthew S. Cox, Licensing Section Leader, at (623) 393-5753.

Sincerely, Michael D. DiLorenzo, Department Leader Nuclear Regulatory Affairs - Licensing MDD/MSC/mg

Enclosure:

Unit 3 Twenty-First Refueling Outage Owner's Activity Report, Report U3R21 cc: S. A. Morris NRC Region IV Regional Administrator S. P. Lingam NRC NRR Project Manager for PVNGS C. A. Peabody NRC Senior Resident Inspector for PVNGS A meinber of the STARS Alliance LLC Callaway

• Diablo Canyon

• Palo Verde

• Wolf Creek

ENCLOSURE Unit 3 Twenty-First Refueling Outage Owner's Activity Report Report U3R21

FORM OAR-1 OWNERS ACTIVITY REPORT Report Number: 3R21 Plant: Palo Verde Nuclear Generating Station, 5801 S. Wintersburg Road, Tonopah, Arizona 85354-7529 Unit No.: Commercial service date: Jan 8,1988 Refueling Outage No.:.

(if applicable)

Current inspection interval IWB, IWC, IWD, IWF = 4th Interval,IWE = 3rd Interval, IWL = 2nd Interval (1, 2, 3". A"', other)

Current inspection period IWB, IWC, IWD, IWF = 1st PeriodIWE = 1st Period, IWL = 2nd Period (1<< jna graj Edition and Addenda of Section XI applicable to the inspection plans 2013 Edition, (IWE, IWL = 2007 Ed., 2008 Ad.)

Date and revision of inspection plans IWB/IWC/IWD/IWF = 10/17/19, SPT = 6/21/18, IWE = 10/3/18, IWL = 8/8/18 Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans 2013 Edition________________________

Code Cases used for inspection and evaluation:

N-532-5, N-722-1, N-729-4, N-770-2, N-716-1, N-845 (if applicable)

CERTIFICATE OF CONFORMANCE I certify that (a) the statements made in this report are correct; (b) the examinations and tests meet the Inspection Plan as required by the ASME Code,Section XI; and (c) the repair/replacement activities and evaluations supporting the completion of U3R21_____ conform to the requirements of Section XI.

(refueling outage number)

Toone, Spencer Designed byloone, Spencer (Z07074)

DN: cn=Toone, Spencer (Z07074)

Signed (Z07074) Dale: 2020.01.15 10:51:23 -07'00' Date:

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and employed byIofHartford, Connecticuthave inspected the items described in this Owner's Activity Report, and state that, to the best of my knowledge and belief, the Owner has performed all activities represented by this report in accordance with the requirements of Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the repair/replacement activities and evaluation described in this report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

• The Hartford Steam Boiler Inspection and Insurance Company

, , Digitally signed by Hogstrom, Hogstrom, Robert(YH24so)

_ . ______________ DN. cn=Hogstrom, Robert Robert (YH2450) (yh2450)

' ' Date 2020 01 15 11 21:27-oroa _ N.B. 9685 "C,I,N,R"

---

Commissions (Inspector's Signature) National Board. State, Province, and Endorsements Date:

PV-E0796 Ver. 2

Table 1 Items with Flaws or Relevant Conditions That Required Evaluation for Continued Service Examination Category Item Description Evaluation Description and Item Number None None None

Table 2 Abstract of Repair/Replacement Activities Required for Continued Service Code Item Description of Work Date Repair/Replacement Class Description Completed Plan Number 2 3PSIAV836 Repair failed 1-inch 10/21/2019 5179053-0 socket weld upstream of SI valve 836.

3 3PSPBL- Weld repair base metal 03/22/2019 5112517-1 032A, 104, of SP pipe spool #14 of 105, 106 line 32, spool #3 of line 104, spool #2 of line 105, and spools #1 and #4 of line 106.

3 3MEWBE01 Weld repair base metal 10/23/2019 5027401-0 of EW heat exchanger where localized corrosion is present due to coating failures.

3 3PSPBL107 Replace SP pipe spool 03/22/2019 3312759-0

1. 1 due to internal areas of localized corrosion.

3 3MDGBE- Swap DG Intercooler 03/22/2019 4777053-0 01A,01B cross-connect spools with spares to facilitate repair/refurbishment.

3 3PSPAL099 Replace SP pipe spools 03/07/2019 4866961-0

1. 1 and #2 due to internal areas of localized corrosion.

3 3PSPAL065A Replace SP pipe spool 03/07/2019 4867975-0

1. 1 due to internal areas of localized corrosion.

3 3PSPAL080B Replace SP pipe spool 03/07/2019 4867976-0

1. 15 due to internal areas of localized corrosion.

3 3PSPBL049A Replace SP pipe spool 03/22/2019 4875519-0

1. 1 due to internal areas of localized corrosion.

3 3MDGAE01A Swap DG Intercooler 03/08/2019 4953872-0 cross-connect spools

1. 6 and #8 with spares to facilitate repair/refurbishment.

Table 2 (continued from previous page)

Code Item Description of Date Repair/Replacement Class Description Work Completed Plan Number 3 3MDGAE01B Swap DG 03/08/2019 4953873-0 Intercooler cross-connect spools #5 and #7 with spares to facilitate repair/refurbishment.

3 3MDGAE- Weld repair base 03/07/2019 4953908-0 01A,01B, 04, metal of DG heat 05 exchangers where localized corrosion is present due to coating failures.

3 3MDGBE- Weld repair base 03/22/2019 4960125-0 01A,01B, 04, metal of DG heat 05 exchangers where localized corrosion is present due to coating failures.