ML25029A256
| ML25029A256 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 01/24/2025 |
| From: | Dilorenzo M Arizona Public Service Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| 102-08897-MDD/CJS | |
| Download: ML25029A256 (1) | |
Text
10 CFR 50.55a A member of the STARS Alliance LLC Callaway
- Diablo Canyon
- Palo Verde
- Wolf Creek 102-08897-MDD/CJS January 24, 2025 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001
Subject:
Palo Verde Nuclear Generating Station Unit 2 Docket No. STN 50-529 Fourth 10-Year Interval, Second Period Owners Activity Report Number 2R25 Pursuant to Title 10 of the Code of Federal Regulations 50.55a and in accordance with the American Society of Mechanical Engineers Boiler and Pressure Vessel Code Case N-532-5, Repair/Replacement Activity Documentation Requirements and Inservice Inspection Summary Report Preparation and Submission Section XI, Division 1, Arizona Public Service Company hereby submits the Owners Activity Report (Form OAR-1) for Unit 2 refueling outage 25 (2R25). The outage ended on November 8, 2024.
No commitments are being made to the NRC by this letter. Should you need further information regarding this submittal, please contact me at (623) 393-3495.
Sincerely, Michael D. Dilorenzo Department Leader Nuclear Regulatory Affairs - Licensing MDD/CJS/cr
Enclosure:
Unit 2 Twenty-Fifth Refueling Outage Owners Activity Report, Report 2R25 cc:
J. D. Monninger NRC Region IV Regional Administrator W. T. Orders NRC NRR Project Manager for PVNGS L. N. Merker NRC Senior Resident Inspector for PVNGS Palo Verde Nuclear Generating Station P.O. Box 52034 Phoenix, AZ 85072 Mail Station 7636 Tel: (623) 393-5753 Dilorenzo, Michael D(Z99838)
Digitally signed by Dilorenzo, Michael D(Z99838)
Date: 2025.01.24 17:24:23 -07'00'
ENCLOSURE Unit 2 Twenty-Fifth Refueling Outage Owners Activity Report Report 2R25
Table 1 Items with Flaws or Relevant Conditions That Required Evaluation for Continued Service Examination Category and Item Number Item Description Evaluation Description None None None
Table 2 Abstract of 2R25 Repair/Replacement Activities Required for Continued Service 1
Code Class Component ID Description of Work Date Complete Repair/Replacement Plan Number 3
2PSPAL065A -
S001, S007 DG CLG WTR HT EXCH DGAE04 TO SPRAY POND TRAIN A Base Metal Repair of Piping 9/29/2023 5454708 Task 6 3
2PSPAL080B -
S015 ESP PP SPAP01 TO DG CLG WTR HT EXCH DGA-E01 Base Metal Repair of Piping 9/29/2023 5454708 Task 6 3
2PSPAL098 -
S003, S004 ESS SPRAY POND P SPAP01TO JACKET WTR CLR HT EXCH Base Metal Repair of Piping 9/29/2023 5454708 Task 6 3
2PSPAL100 -
S001 JACKET WTR CLR HT EXCH TOSPRAY POND TRAIN A Base Metal Repair of Piping 9/29/2023 5454708 Task 6 3
2PSPAL099 -
S001, S002 ESS SPRAY POND P SPAP01TO AIR AFTERCLRS HT EXCH Base Metal Repair of Piping 9/29/2023 5454708 Task 6 3
2PSPAL101 AIR AFTERCORS HT EXCH TOSPRAY POND TRAIN A Base Metal Repair of Piping 9/29/2023 5454708 Task 6 3
2MDGAE01A EDG INTERCOOLER A Base Metal Repair of corroded areas 9/30/2023 5454713 Task 0 3
2MDGAE04 EDG LUBE OIL COOLER Base Metal Repair of corroded areas 9/30/2023 5454713 Task 0 3
2MDGAE05 EDG JACKET WATER COOLER Base Metal Repair of corroded areas 9/30/2023 5454713 Task 0 3
2MDGAE01B EDG INTERCOOLER B Base Metal Repair of corroded areas 9/30/2023 5454713 Task 0 3
2MDGAE01A/B EDG INTERCOOLER CROSS CONNECT SPOOLS (5, 6, 7, and 8)
Weld repair of corroded areas 9/30/2023 5454713 Task 0 3
2MDGBE04 EDG LUBE OIL COOLER Base Metal Repair of corroded areas 6/14/2024 5519479 Task 0 3
2MDGBE05 EDG JACKET WATER COOLER Base Metal Repair of corroded areas 6/14/2024 5519479 Task 0
Table 2 Abstract of 2R25 Repair/Replacement Activities Required for Continued Service 2
Code Class Component ID Description of Work Date Complete Repair/Replacement Plan Number 3
2MDGBE01B EDG INTERCOOLER B Base Metal Repair of corroded areas 6/14/2024 5519479 Task 0 3
2MDGBE01A EDG INTERCOOLER A Base Metal Repair of corroded areas 6/14/2024 5519479 Task 0 3
2MDGBE01A/B EDG INTERCOOLER CROSS CONNECT SPOOLS (5, 6, 7, and 8)
Base Metal Repair of corroded areas 6/14/2024 5519479 Task 0 3
2PSPBL032A ESS SPRAY POND SPBP01 TO JACKET WATER COOLER SPOOL 14,15 Base Metal Repair pipe spools 6/14/2024 5519474 Task 6 3
2PSPBL049A DG CLG WTR HT EXCH DGAE01 TO SPRAY POND TRAIN B SPOOL 1 Base Metal Repair pipe spools 6/14/2024 5519474 Task 6 3
2PSPBL104 ESS SPRAY POND P SPBP01 TO LUBE OIL CLR DGBE04 SPOOL 3 Base Metal Repair pipe spools 6/14/2024 5519474 Task 6 3
2PSPBL105 ESS SPRAY POND P SPBP01 TO AIR AFTERCLRS HT EXCH SPOOL 1,2 Base Metal Repair pipe spools 6/14/2024 5519474 Task 6 3
2PSPBL106 LUBE OIL CLR DGBE04 TO SPRAY POND TRAIN B SPOOL 1,4 Base Metal Repair pipe spools 6/14/2024 5519474 Task 6 3
2PSPBL107 AIR AFTERCLRS HT EXCH TOSPRAY POND TRAIN B SPOOL 1 Base Metal Repair pipe spools 6/14/2024 5519474 Task 6 3
2MEWBE01 ECWS HT EXCH B Perform base material repairs to the heat exchanger as directed by engineering inspection maps provided.
10/26/2024 5547898 Task 1 2
2SG045H011 STEAM GEN 2 MAIN STEAM LN2 CONSTANT SPRING HANGER Replace constant spring support 11/4/2024 5664616 Task 0 2
2PSGEL005 Fabricate pipe and fittings to replace a portion of line SGE-L005 spool S-011 due to Flow Accelerated Corrosion.
11/4/2024 5473030 Task 1
Table 2 Abstract of 2R25 Repair/Replacement Activities Required for Continued Service 3
Code Class Component ID Description of Work Date Complete Repair/Replacement Plan Number 2
2PSGEV653 S/G #2 DOWNCOMER FEED WATER HEADER CHECK VALVE Perform BMR to ID of weld end to meet fit up criteria for SGE-011 Spool S-003 11/7/2024 5555570 Task 0 2
2PSGEL005 Install pipe and fittings to replace a portion of line SGE-L005 spool S-011 and S-012 due to Flow Accelerated Corrosion.
11/7/2024 5473030 Task 0 2
2PSGEV653 Perform BMR to ID of weld end to meet fit up criteria for SGE-011 Spool S-003 11/7/2024 5555570 Task 0 2
2PSGEL011 Replace SGE-L011 Spool S-003 between SGE-V653 and penetration SGE-U12 due to FAC using vendor supplied materials.
11/7/2024 5555570 Task 0