ML080710001

Request for Additional Information VRR-GGNS-2007-02 Request for Alternative from ASME OM Code 5-Year Test Interval for Main Stream Safety Relief Valves

ML080710001
Person / Time
Site:	Grand Gulf
Issue date:	03/14/2008
From:	Donohew J NRC/NRR/ADRO/DORL/LPLIV
To:	Entergy Operations
Donohew J N, NRR/DLPM,415-1307
References
TAC MD7758, VRR-GGNS-2007-02
Download: ML080710001 (4)

Text

March 14, 2008 Vice President, Operations Entergy Operations, Inc.

Grand Gulf Nuclear Station P.O. Box 756 Port Gibson, MS 39150

SUBJECT:

GRAND GULF NUCLEAR STATION, UNIT 1 - REQUEST FOR ADDITIONAL INFORMATION REGARDING REQUEST FOR ALTERNATIVE NO.

VRR-GGNS-2007-02 FROM ASME OM CODE 5-YEAR TEST INTERVAL FOR MAIN STEAM SAFETY RELIEF VALVES (TAC NO. MD7758)

Dear Sir or Madam:

By letter dated January 8, 2008, Entergy Operations, Inc. (Entergy), submitted a Request for Alternative No. VRR-GGNS-2007-02 to extend the 5-year test interval, on a one-time basis, for 12 Main Steam Safety Relief Valves (SRVs) for Grand Gulf Nuclear Station. Entergy requests relief from American Society of Mechanical Engineers Operation and Maintenance Code (ASME OM Code), 2001 Edition through 2003 Appendix, "Code of Operation and Maintenance of Nuclear Power Plants," Subsection ISTC, Mandatory Appendix I.

The Nuclear Regulatory Commission (NRC) staff has reviewed the information provided and determined that additional information is required in order to complete the evaluation. The additional information being requested is related to the 12 Main Steam SRVs. The staffs request was provided to your staff via electronic mail on February 27, 2008. As discussed with Michael Larson of your staff, the NRC staff is requesting a response within 30 days of the date of this letter.

If you have any questions, please contact me at 301-415-1307.

Sincerely,

/RA/

Jack N. Donohew, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-416

Enclosure:

Request for Additional Information cc: See next page

March 14, 2008 Vice President, Operations Entergy Operations, Inc.

Grand Gulf Nuclear Station P.O. Box 756 Port Gibson, MS 39150

SUBJECT:

GRAND GULF NUCLEAR STATION, UNIT 1 - REQUEST FOR ADDITIONAL INFORMATION REGARDING REQUEST FOR ALTERNATIVE NO.

VRR-GGNS-2007-02 FROM ASME OM CODE 5-YEAR TEST INTERVAL FOR MAIN STEAM SAFETY RELIEF VALVES (TAC NO. MD7758)

Dear Sir or Madam:

By letter dated January 8, 2008, Entergy Operations, Inc. (Entergy), submitted a Request for Alternative No. VRR-GGNS-2007-02 to extend the 5-year test interval, on a one-time basis, for 12 Main Steam Safety Relief Valves (SRVs) for Grand Gulf Nuclear Station. Entergy requests relief from American Society of Mechanical Engineers Operation and Maintenance Code (ASME OM Code), 2001 Edition through 2003 Appendix, "Code of Operation and Maintenance of Nuclear Power Plants," Subsection ISTC, Mandatory Appendix I.

The Nuclear Regulatory Commission (NRC) staff has reviewed the information provided and determined that additional information is required in order to complete the evaluation. The additional information being requested is related to the 12 Main Steam SRVs. The staffs request was provided to your staff via electronic mail on February 27, 2008. As discussed with Michael Larson of your staff, the NRC staff is requesting a response within 30 days of the date of this letter.

If you have any questions, please contact me at 301-415-1307.

Sincerely,

/RA/

Jack N. Donohew, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-416

Enclosure:

Request for Additional Information cc: See next page DISTRIBUTION:

PUBLIC RidsNrrDorlLpl4 RidsRgn4MailCenter LPLIV r/f RidsNrrPMJDonohew STingen, NRR/DCI/CPTB RidsAcrsAcnw&mMailCenter RidsNrrLAJBurkhardt JMcHale, NRR/DCI/CPTB RidsNrrDciCptb RidsOgcRp LWilkins, NRR/DORL/LPL4 RidsNrrDorlDpr ADAMS Accession No.: ML080710001 OFFICE NRR/LPL4/GE NRR/LPL4/PM NRR/LPL4/LA NRR/LPL4/BC NAME LWilkins JDonohew JBurkhardt THiltz DATE 3/13/08 3/14/08 3/12/08 3/14/08 OFFICIAL AGENCY RECORD

Grand Gulf Nuclear Station (2/25/08) cc:

Senior Vice President Office of the Governor Entergy Nuclear Operations State of Mississippi P.O. Box 31995 Jackson, MS 39201 Jackson, MS 39286-1995 Attorney General Vice President, Oversight Department of Justice Entergy Nuclear Operations State of Louisiana P.O. Box 31995 P.O. Box 94005 Jackson, MS 39286-1995 Baton Rouge, LA 70804-9005 Senior Manager, Nuclear Safety President

& Licensing Claiborne County Entergy Nuclear Operations Board of Supervisors P.O. Box 31995 P.O. Box 339 Jackson, MS 39286-1995 Port Gibson, MS 39150 Senior Vice President Richard Penrod, Senior Environmental

& Chief Operating Officer Scientist/State Liaison Officer Entergy Operations, Inc. Office of Environmental Services P.O. Box 31995 Northwestern State University Jackson, MS 39286-1995 Russell Hall, Room 201 Natchitoches, LA 71497 Associate General Counsel Entergy Nuclear Operations Chief, Energy and Transportation Branch P.O. Box 31995 Environmental Compliance and Jackson, MS 39286-1995 Enforcement Division Mississippi Department of Environmental Manager, Licensing Quality Entergy Operations, Inc. P.O. Box 10385 Grand Gulf Nuclear Station Jackson, MS 39289-0385 P.O. Box 756 Port Gibson, MS 39150 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission State Health Officer 611 Ryan Plaza Drive, Suite 400 State Health Board Arlington, TX 76011-8064 P.O. Box 1700 Jackson, MS 39215 Senior Resident Inspector U.S. Nuclear Regulatory Commission Attorney General P.O. Box 399 Asst. Attorney General Port Gibson, MS 39150 State of Mississippi P.O. Box 22947 Jackson, MS 39225-2947

REQUEST FOR ADDITIONAL INFORMATION REQUEST FOR ALTERNATIVE VRR-GGNS-2007-02 ENTERGY OPERATIONS, INC.

GRAND GULF NUCLEAR STATION, UNIT 1 DOCKET NO. 50-416 By letter dated January 8, 2008 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML080080589), Entergy Operations, Inc. (Entergy), submitted a Request for Alternative No. VRR-GGNS-2007-02 to extend the 5-year test interval, on a one-time basis, for 12 Main Steam Safety Relief Valves (SRVs) for Grand Gulf Nuclear Station, Unit 1 (GGNS). Entergy requests relief from American Society of Mechanical Engineers Operation and Maintenance Code (ASME OM Code), 2001 Edition through 2003 Appendix, "Code of Operation and Maintenance of Nuclear Power Plants," Subsection ISTC, Mandatory Appendix I.

The staff has reviewed the information provided and determined that the following additional information is required in order to complete the evaluation:

1. Verify that Valves 1B21-F041K, 1B21-F041F, 1B21-F051F, 1B21-F051B, 1B21-F041D, and 1B21-F047D were refurbished to a like-new condition prior to being placed in storage and later installed in October 2005. Verify that Valves 1B21-F047L, 1B21-F041G, 1B21-F047G, 1B21-F051C, and 1B21-F047C were refurbished to a like-new condition prior to being placed in storage and later installed in March 2007.

2. Discuss if the controlled environment for the storage of Valves 1B21-F041K, 1B21-F041F, 1B21-F051F, 1B21-F051B, 1B21-F041D, 1B21-F047D, 1B21-F047L, 1B21-F041G, 1B21-F047G, 1B21-F051C, and 1B21-F047C was equipped to prevent condensation and corrosion.

3. Please provide test results for Dikkers Model G-471 SRVs that were maintained in a controlled environment similar to the GGNS controlled environment for an extended period of time and setpoint tested prior to actual installation. As an alternative, discuss why the as-found set-pressure test results for Dikkers Model G-471 SRVs provided in a letter dated September 28, 2007 (Agencywide ADAMS Accession No. ML072740030) are applicable to the GGNS SRVs.

Enclosure