W3F1-2006-0043, Additional Information in Response to NRC Bulletin 2004-01, Inspection of Alloy 82/182/600 Materials Used in Pressurizer Penetrations and Steam Space Piping Connections

Additional Information in Response to NRC Bulletin 2004-01, Inspection of Alloy 82/182/600 Materials Used in Pressurizer Penetrations and Steam Space Piping Connections

ML062430312
Person / Time
Site:	Waterford
Issue date:	08/29/2006
From:	Murillo R Entergy Nuclear South, Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
BL-04-001, W3F1-2006-0043
Download: ML062430312 (5)

Text

Entergy Nuclear South Entergy Operations, Inc.

17265 River Road Killona, LA 70057-3093

-Entergy Tel 504-739-6715 Fax 504-739-6698 rmurill@entergy.com Robert J. Murillo Licensing Manager Waterford 3 W3F1-2006-0043 August 29, 2006 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC- 20555

SUBJECT:

Additional Information in Response to NRC Bulletin 2004-01, Inspection of Alloy 82/182/600 Materials Used In Pressurizer Penetrations and Steam Space Piping Connections Waterford Steam Electric Station, Unit 3 Docket No. 50-382

REFERENCES:

1 NRC letter dated May 28, 2004, NRC Bulletin 2004-01: Inspection of Alloy 82/182/600 Materials Used In the Fabricationof Pressurizer Penetrationsand Steam Space Piping Connections at Pressurized-Water Reactors 2 Entergy letter dated July 27, 2004, Response to NRC Bulletin 2004-01 Regarding Inspection of Alloy 82/182/600 Materials Used In Pressurizer Penetrationsand Steam Space Piping Connections (W3F1-2004-0058)

Dear Sir or Madam:

On May 28, 2004, the Nuclear Regulatory Commission (NRC) issued NRC Bulletin 2004-01, Inspection of Alloy 82/182/600 Materials Used In the Fabricationof PressurizerPenetrations and Steam Space Piping Connections at Pressurized-WaterReactors (Reference 1). The NRC requested that all pressurized water reactor addressees provide description of their pressurizer heater and steam space penetrations and inspection plans for the forthcoming and subsequent refueling outages. On July 27, 2004 (Reference 2), Entergy provided the required response for the Waterford Steam Electric Station, Unit 3 (Waterford-3).

In the response, Entergy had noted that weld repairs/replacements were being planned during the spring 2005 refueling outage (RF-1 3) for the pressurizer heater and small bore Alloy 600 pressurizer nozzles and welds. The purpose of this letter is to confirm that associated repairs or replacements were performed. The attachment to this letter provides details on the repairs that were performed during the RF-13 outage.

W3F1-2006-0043 Page 2 There are no commitments associated with this letter. If you have any questions or require additional information, please contact Steve Bennett at 479-858-4626.

Sincerely, RJM/SAB/ssf

Attachment:

Repairs Performed on the Waterford-3 Pressurizer During the Spring 2005 Refueling Outage

W3F17-2006-0043 Page 3 cc: Dr. Bruce S. Mallett U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011 NRC Senior Resident Inspector Waterford 3 P.O. Box 822 Killona, LA 70066-0751 U.S. Nuclear Regulatory Commission Attn: Mr. Mel Fields MS O-07D1 Washington, DC 20555-0001 Wise, Carter, Child & Caraway Attn: J. Smith P.O. Box 651 Jackson, MS 39205 Winston & Strawn Attn: N.S. Reynolds 1400 L Street, NW Washington, DC 20005-3502 Louisiana Department of Environmental Quality Office of Environmental Compliance Surveillance Division P. O. Box 4312 Baton Rouge, LA 70821-4312 American Nuclear Insurers Attn: Library Town Center Suite 300S 29th S. Main Street West Hartford, CT 06107-2445

Attachment W3FI -2006-0043 Repairs Performed on the Waterford-3 Pressurizer During the Spring 2005 Refueling Outage

Attachment to W3F1 -2006-0043 Page 1 of I Re;pairs Performed on the Waterford-3 Pressurizer During the Spring 2005 Refueling Outage Heater Sleeves The Waterford-3 Pressuizer contains thirty (30) heater sleeves. Pressurizer Heater Sleeve F-4 was repaired during the fall 2000 refueling outage with an Alloy 690 plug. This plug was retained and no additional repairs or modifications were performed in the spring 2005 refueling outage (RF-13). The remaining twenty nine (29) nozzles were replaced using a half nozzle, mid-wall repair during RF-1 3. The half nozzle repair design relocates the reactor coolant pressure boundary from a partial penetration (J-groove) weld on the inside surface of the pressurizer to a partial penetration weld at the mid-wall of the pressurizer shell. The new pressure boundary for these sleeves is constructed with Alloy 690 materials.

Small Bore Pressurizer Penetrations The Waterford-3 Pressurizer contains six (6) small bore instrument nozzles and 1 (one) temperature nozzle localed both in the steam and water space of the pressurizer. Two upper steam space nozzles were repaired in the spring of 1999 using Alloy 600 weld filler and two were repaired using Alloy 690 materials in the fall 2000 refueling outages. The 2 previously repaired nozzles using Alloy 600 weld filler, the temperature nozzle and the remaining two instrument nozzles, were replaced during RF-13 utilizing a new half-nozzle welded to a pad on the outside of the pressurizer shell using Alloy 690 half-nozzles and weld filler.

Note: There are 5 remaining large bore pressurizer welds and nozzles consisting of two 6-inch pressurizer relief valve nozzles, a spare 6-inch nozzle, the 4-inch pressurizer spray line, and 12-inch surge line. No repairs have been performed on these welds or nozzles to date.

Text

Entergy Nuclear South Entergy Operations, Inc.

17265 River Road Killona, LA 70057-3093

-Entergy Tel 504-739-6715 Fax 504-739-6698 rmurill@entergy.com Robert J. Murillo Licensing Manager Waterford 3 W3F1-2006-0043 August 29, 2006 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC- 20555

SUBJECT:

Additional Information in Response to NRC Bulletin 2004-01, Inspection of Alloy 82/182/600 Materials Used In Pressurizer Penetrations and Steam Space Piping Connections Waterford Steam Electric Station, Unit 3 Docket No. 50-382

REFERENCES:

1 NRC letter dated May 28, 2004, NRC Bulletin 2004-01: Inspection of Alloy 82/182/600 Materials Used In the Fabricationof Pressurizer Penetrationsand Steam Space Piping Connections at Pressurized-Water Reactors 2 Entergy letter dated July 27, 2004, Response to NRC Bulletin 2004-01 Regarding Inspection of Alloy 82/182/600 Materials Used In Pressurizer Penetrationsand Steam Space Piping Connections (W3F1-2004-0058)

Dear Sir or Madam:

On May 28, 2004, the Nuclear Regulatory Commission (NRC) issued NRC Bulletin 2004-01, Inspection of Alloy 82/182/600 Materials Used In the Fabricationof PressurizerPenetrations and Steam Space Piping Connections at Pressurized-WaterReactors (Reference 1). The NRC requested that all pressurized water reactor addressees provide description of their pressurizer heater and steam space penetrations and inspection plans for the forthcoming and subsequent refueling outages. On July 27, 2004 (Reference 2), Entergy provided the required response for the Waterford Steam Electric Station, Unit 3 (Waterford-3).

In the response, Entergy had noted that weld repairs/replacements were being planned during the spring 2005 refueling outage (RF-1 3) for the pressurizer heater and small bore Alloy 600 pressurizer nozzles and welds. The purpose of this letter is to confirm that associated repairs or replacements were performed. The attachment to this letter provides details on the repairs that were performed during the RF-13 outage.

W3F1-2006-0043 Page 2 There are no commitments associated with this letter. If you have any questions or require additional information, please contact Steve Bennett at 479-858-4626.

Sincerely, RJM/SAB/ssf

Attachment:

Repairs Performed on the Waterford-3 Pressurizer During the Spring 2005 Refueling Outage

W3F17-2006-0043 Page 3 cc: Dr. Bruce S. Mallett U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011 NRC Senior Resident Inspector Waterford 3 P.O. Box 822 Killona, LA 70066-0751 U.S. Nuclear Regulatory Commission Attn: Mr. Mel Fields MS O-07D1 Washington, DC 20555-0001 Wise, Carter, Child & Caraway Attn: J. Smith P.O. Box 651 Jackson, MS 39205 Winston & Strawn Attn: N.S. Reynolds 1400 L Street, NW Washington, DC 20005-3502 Louisiana Department of Environmental Quality Office of Environmental Compliance Surveillance Division P. O. Box 4312 Baton Rouge, LA 70821-4312 American Nuclear Insurers Attn: Library Town Center Suite 300S 29th S. Main Street West Hartford, CT 06107-2445

Attachment W3FI -2006-0043 Repairs Performed on the Waterford-3 Pressurizer During the Spring 2005 Refueling Outage

Attachment to W3F1 -2006-0043 Page 1 of I Re;pairs Performed on the Waterford-3 Pressurizer During the Spring 2005 Refueling Outage Heater Sleeves The Waterford-3 Pressuizer contains thirty (30) heater sleeves. Pressurizer Heater Sleeve F-4 was repaired during the fall 2000 refueling outage with an Alloy 690 plug. This plug was retained and no additional repairs or modifications were performed in the spring 2005 refueling outage (RF-13). The remaining twenty nine (29) nozzles were replaced using a half nozzle, mid-wall repair during RF-1 3. The half nozzle repair design relocates the reactor coolant pressure boundary from a partial penetration (J-groove) weld on the inside surface of the pressurizer to a partial penetration weld at the mid-wall of the pressurizer shell. The new pressure boundary for these sleeves is constructed with Alloy 690 materials.

Small Bore Pressurizer Penetrations The Waterford-3 Pressurizer contains six (6) small bore instrument nozzles and 1 (one) temperature nozzle localed both in the steam and water space of the pressurizer. Two upper steam space nozzles were repaired in the spring of 1999 using Alloy 600 weld filler and two were repaired using Alloy 690 materials in the fall 2000 refueling outages. The 2 previously repaired nozzles using Alloy 600 weld filler, the temperature nozzle and the remaining two instrument nozzles, were replaced during RF-13 utilizing a new half-nozzle welded to a pad on the outside of the pressurizer shell using Alloy 690 half-nozzles and weld filler.

Note: There are 5 remaining large bore pressurizer welds and nozzles consisting of two 6-inch pressurizer relief valve nozzles, a spare 6-inch nozzle, the 4-inch pressurizer spray line, and 12-inch surge line. No repairs have been performed on these welds or nozzles to date.