ML18229A313

NRR E-mail Capture - Request for Additional Information Relief Request 58: Impractical Examinations for the Third 10-Year Inservice Inspection Interval Arizona Public Service Company Palo Verde Nuclear Generation Station, Unit 2 - Second Se

ML18229A313
Person / Time
Site:	Palo Verde
Issue date:	08/17/2018
From:	Michael Orenak Plant Licensing Branch II
To:	Cox M Arizona Public Service Co
References
L-2018-LLR-0028
Download: ML18229A313 (3)

Text

NRR-DMPSPEm Resource From: Orenak, Michael Sent: Friday, August 17, 2018 2:44 PM To: Matthew.Cox@aps.com Cc: Carl.Stephenson@aps.com; Michael.Dilorenzo@aps.com

Subject:

RAIs for RR-58; second set Attachments: RAIs for RR-58 second set.docx

Matthew, By letter dated March 17, 2018, Arizona Public Service Company (APS) requested relief from certain requirements of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code,Section XI.

This relief request, RR-58, pertains to examination ultrasonic examinations of welds that have been determined to be impractical during the third inservice inspection interval at the Palo Verde Nuclear Generating Station, Unit 2.

The U.S. Nuclear Regulatory Commission staff reviewed the submittal and determined that the additional information in the attachment is needed to complete its review. During a call on August 17, 2018, Mr.

DiLorenzo agreed that APS would respond within 30 days of the date of this email.

Please contact me if you have any questions.

Michael D. Orenak Palo Verde, Vogtle, and SNC Fleet Project Manager NRR - Division of Operating Reactor Licensing Phone: 301-415-3229 e-mail: Michael.Orenak@nrc.gov 1

Hearing Identifier: NRR_DMPS Email Number: 528 Mail Envelope Properties (Michael.Orenak@nrc.gov20180817144300)

Subject:

RAIs for RR-58; second set Sent Date: 8/17/2018 2:43:43 PM Received Date: 8/17/2018 2:43:00 PM From: Orenak, Michael Created By: Michael.Orenak@nrc.gov Recipients:

"Carl.Stephenson@aps.com" <Carl.Stephenson@aps.com>

Tracking Status: None "Michael.Dilorenzo@aps.com" <Michael.Dilorenzo@aps.com>

Tracking Status: None "Matthew.Cox@aps.com" <Matthew.Cox@aps.com>

Tracking Status: None Post Office:

Files Size Date & Time MESSAGE 1001 8/17/2018 2:43:00 PM RAIs for RR-58 second set.docx 19071 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received:

REQUEST FOR ADDITIONAL INFORMATION RELIEF REQUEST 58: IMPRACTICAL EXAMINATIONS FOR THE THIRD 10-YEAR INSERVICE INSPECTION INTERVAL ARIZONA PUBLIC SERVICE COMPANY PALO VERDE NUCLEAR GENERATION STATION, UNIT 2 DOCKET NO. 50-529 By letter dated March 17, 2018 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML18079A725), Arizona Public Service Company (APS, the licensee),

submitted relief request (RR) No. 58 to request relief from the requirements in Subarticles IWB-2500 and IWC-2500 of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel (BPV) Code,Section XI, Rules for Inservice Inspection of Nuclear Power Plant Components, 2001 Edition through 2003 Addenda, regarding examinations of certain welds at Palo Verde Nuclear Generating Station, Unit 2.

The U.S. Nuclear Regulatory Commission staff is reviewing the submittal and the following additional information is needed to complete the review:

8. Please state if the Category B-D, weld identification numbers 5-10, 5-11, 5-12, 5-13, and 5-14 were examined in the first or second 10-year (previous) ISI intervals. If so, please discuss the results of inspections and, if there was any drop in coverage, please discuss what caused the decrease in obtainable coverage and justify how this examination provides an equivalent or greater standard of quality and safety.

9. The submittal states that no scans were performed from the nozzle side of the Category B-D welds due to the nozzle geometry. Please provide graphics or further description as to why further examination cannot be obtained from this side for weld identification number 5-9.