ML063070222

E-Mail: FW: Requested Pilgrim Isl Information

ML063070222
Person / Time
Site:	Pilgrim
Issue date:	08/10/2006
From:	Douglas E Entergy Nuclear Operations
To:	Subbaratnam R NRC/NRR/ADRO
References
TAC MD2296
Download: ML063070222 (3)

Text

i en Howard - FW: Requested Pilgim I*I Intormation .. age i1 From: "Ellis, Douglas" <dellisl @entergy.com>

To: "Ram Subbaratnam" <RXS2@nrc.gov>

Date: 8/10/2006 12:10:29 PM

Subject:

FW: Requested Pilgim ISI Information Doug Ellis, Pilgrim Licensing.

---

Original Message -----

From: PNP616_DoNotReply@entergy.com

[1]

Sent: Thursday, August 10, 2006 6:41 AM To: Ellis, Douglas

Subject:

Scan from a Xerox WorkCentre Pro Please open the attached document. It was scanned and sent to you using a Xerox WorkCentre Pro.

Sent by: Guest [PNP616_DoNotReply@entergy.com]

Number of Images: 1 Attachment File Type: TIFF WorkCentre Pro Location: ESB 2nd FI Licensing Device Name: PNP616 For more information on Xerox products and solutions, please visit http://www.xerox.com

11c:\temP\GWI00001.TMP Pacie 1 11 Mail Envelope Properties (44DB5A6C.82D*:10: 59437)

Subject:

FW: Requested Pilgim ISI Information Creation Date 8/10/2006 12:10:11 PM From: "Ellis, Douglas" <dellis 1@entergy.com>

Created By: dellis 1@entergy.com Recipients nrc.gov TWGWPO02.HQGWDO01 RXS2 (Ram Subbaratnam)

Post Office Route TWGWPO02.HQGWDOO1 nrc.gov Files Size Date & Time MESSAGE 589 8/10/2006 12:10:11 PM Scan00l.TIF 66434 Mime.822 1 Options Expiration Date: None Priority: Standard ReplyRequested: No Return Notification: None Concealed

Subject:

No Security: Standard Junk Mail Handling Evaluation Results Message is eligible for Junk Mail handling This message was not classified as Junk Mail Junk Mail settings when this message was delivered Junk Mail handling disabled by User Junk Mail handling disabled by Administrator Junk List is not enabled Junk Mail using personal address books is not enabled Block List is not enabled

As we understand the question, the NRC wants to know about future inspection plans for N10 and N2F. Here it is:

" Both nozzles are inspected in accordance with the schedule requirements of BWRVIP-75A and GL88-01; this inspection schedule will continue into the period of extended operation.

• The PNPS IGSCC program, while described in the PNPS ISI Program, is documented in a separate document, PNP-RPT-05-008.

• The N10 nozzle safe end weld (a Category D weld prior to Oct. '03) received a weld overlay in October 2003 to repair a through-wall leak.

Accordingly, it is now classified as a Category E weld under VIP-75A and GL88-01 rules. It will be examined within the next 3 refueling outages (RFO) of the repair (in RFO1 7), then it will revert to the Category E VIP-75A frequency of 25% of all overlaid welds every 10 years. PNPS has only 2 weld overlays; either N10 or N9A will be examined every 10 years, including during the period of extended operation.

" The N2F nozzle safe end weld is classified as a Category D weld with Hydrogen Water Chemistry protection under BWRVIP-75A. This weld was last examined in RFO15 when a mid-wall, non-ID connected fabrication flaw was found. This flaw was determined to not be the result of IGSCC or any other service-related mechanism but was instead a welding anomaly (mid-wall lack of fusion) that occurred when the safe end was replaced in 1984. The EPRI PDI analyst performing an on-site 3 RD party review of RFO15 exam results agreed with this conclusion. This weld is scheduled to be re-examined by UT next outage in RFO16 ('07) to confirm the original conclusion that IGSCC was not present and that no growth has occurred. After the RFO1 6 exam, the weld will continue to be examined once every 10 years in accordance with the Category D requirements of VIP-75A, taking credit for Hydrogen Water Chemistry, including during the period of extended operation.