ML19205A264

Third 10-Year Interval, Third Period: Owner'S Activity Report Number U1R21

ML19205A264
Person / Time
Site:	Palo Verde
Issue date:	07/24/2019
From:	Dilorenzo M Arizona Public Service Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
102-07957-MDD/CJS
Download: ML19205A264 (6)

Text

10 CFR 50.55a Qaps Pato Verde Nuclear Generating Station P.O. Box 52034 Phoenix, AZ 85072 102-07957-MDD/aS Mail Station 7636 July 24, 2019 Tei: (623) 393-3495 ATTN; Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

Subject:

Palo Verde Nuclear Generating Station Unit 1, Docket No. STN 50-528 Third 10-Year Interval, Third Period:

Owner's Activity Report Number U1R21 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 1 refueling outage 21 (U1R21). The outage ended on May 9, 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 me at (623) 393-3495.

Sincerely, fo/l m.u_<<AAGl 5-Michael D. DiLorenzo, Department Leader Nuclear Regulatory Affairs - Licensing MDD/CJS/mg

Enclosure:

Unit 1 Twenty-First Refueling Outage Owner's Activity Report, Report U1R21 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 member of the STARS Alliance LLC Callaway

• Diablo Canyon

• Palo Verde

• Wolf Creek

ENCLOSURE Unit 1 Twenty-First Refueling Outage Owner's Activity Report Report U1R21

FORM OAR-1 OWNERS ACTIVITY REPORT Report Number:

Plant: Palo Verde Nuclear Generating Station, 5801 S. Wintersburg Road, Tonopah, Arizona 85354-7529 Unit No.: 1 Commercial service date: Jan 28,1986 Refueling Outage No.: R21 (if applicable)

Current inspection interval IWB, IWC, IWD, IWF, IWE, Pressure Test (SPT) = 3rd Interval / IWL = 2nd Interval (1, 2'. 3', A, other)

Current inspection period IWB, IWC, IWD, IWF, SPT = 3rd / IWE = 1st / IWL = 2nd (1*. 2", 3")

Edition and Addenda of Section XI applicable to the inspection plans 2001 Ed., '03 Ad. (IWE,IWL = 2007 Ed., '08 Ad.)

Date and revision of inspection plans ISI = 08/01/18 R7, SPT = 03/15/18 R5, IWE = 10/03/18 RO, IWL = 08/08/18 R4 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-729-4, N-722-1, N-770-2, N-460, N-733 (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 1R21_____ conform to the requirements of Section XI.

(refueling outage number)

Toone, Spencer

(~7r\~7r\~7 A \ DN- cn=Toone, Spencer (Z07074)

(Z.U / U / j Date: 2019.07.16 14:42:01 -07'00' Signed 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 by*_ofHartford. Connecticuthave inspected the items described in this Owners 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, Roben (yh24so) y,.,. .-i., >> ON: cn=Hogstrom. Robert Robert (YH2450) o'H2460)

' ' Date; 2019.07.17 10:23:05 -0700' Commissions N.B. 9685, Az 264 "C, l, N, R" (Inspectors Si^alure) 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 and Item Number Item Descriotion Evaluation Descriotion None None None

Table 2 Abstract of Repair/Replacement Activities Required for Continued Service Code Item Description of Work Date Reoair/Reolacement Class Descriotion Comoleted Plan Number 1 IMRCEEOIA SG 1, COLD LEG TUBE 04/26/2019 5006122 PLUGGING 1 IMRCEEOIB SG 2, COLD LEG TUBE 04/26/2019 5006123 PLUGGING 1 IMRCEEOIB SG2, HOT LEG TUBE 04/26/2019 5111730 PLUGGING 1 IMRCEEOIA SG 1, HOT LEG TUBE 04/26/2019 5111731 PLUGGING 2 1SG039H012 SWAY STRUT WAS 05/03/2019 5123606 REWORKED DUE TO BEARING WALKING OUT OF PINNED END. BEARING WAS REPOSITIONED AND STAKED.

2 1SI174H005 SNUBBER REPLACED DUE TO 04/20/2019 5117754 LEAKAGE FROM HVAC ABOVE. SNUBBER PASSED TESTING UPON REMOVAL.

2 1PCHNL558 GRIND OUT IDENTIFIED 05/03/2019 5073016 WELD DEFECTS ON LINE CHN-L558 THEN REPAIR WELD. REF REPORT 18-1184 2 1SI106H019 REPLACE SNUBBER. FAILED 03/06/2019 4975071 INITIAL DRAG TEST. REF CR 19-03367.

3 1PDFAL006 REPLACE BENT SECTION OF 03/02/2018 4762680 PIPE 3 IMDGAEOIA/B SWAP INTERCOOLER CROSS 03/03/2018 4777050 CONNECT SPOOLS WITH PRE-FABRICATED SPOOLS 3 IMDGAE... BASE METAL WELD REPAIR 03/03/2018 4784037 OlA, OIB, 05 HEAT EXCHANGERS AS NECESSARY DUE TO COATING FAILURES 3 1PSPAL065A BASE METAL WELD REPAIR 03/03/2018 4840850 OF SPRAY POND PIPE SPOOL

Code Item Description of Work Date Repair/Replacement Class Descriotion Completed Plan Number 3 IMDGBEOIA SWAP INTERCOOLER CROSS 09/28/2018 4906648 CONNECT SPOOLS WITH PRE-FABRICATED SPOOLS 3 IMDGBEOIB SWAP INTERCOOLER CROSS 09/28/2018 4906649 CONNECT SPOOLS WITH PRE-FABRICATED SPOOLS 3 IPSPBL... BASE METAL WELD REPAIR 09/27/2018 4906682 032A, 049A, OF SPRAY POND PIPE SPOOL 105 3 IMDGBE... BASE METAL WELD REPAIR 09/27/2018 4906683 OlA, OIB, 04, HEAT EXCHANGERS AS 05, OlA/B NECESSARY DUE TO COATING FAILURES 3 IMDGBEOIA/B REPLACE BROKEN BOLT AT 09/26/2018 4943273 BRACKET THAT SUPPORTS THE INTERCOOLER CROSS CONNECT SPOOLS 3 IMEWBEOl BASE METAL WELD REPAIR 05/03/2019 4962719 HEAT EXCHANGER AS NECESSARY DUE TO COATING FAILURES 3 1PC005H016 REPLACE BEARING RETAINER 02/20/2019 4974929 NUT ON SNUBBER DUE TO WEAR