ML18225A215

Summary of Telephone Conference Between the U.S. Nuclear Regulatory Commission and Entergy to Clarify the Fluence Information in Support of the River Bend Station, Unit 1 License Renewal Application Review

ML18225A215
Person / Time
Site:	River Bend
Issue date:	08/15/2018
From:	Sayoc E NRC/NRR/DMLR/MRPB
To:	Maguire W Entergy Operations
Wong A, (301) 415-3081
Shared Package
ML18226A322	List: ML18225A215
References
CAC MF9757
Download: ML18225A215 (5)

Text

August 15, 2018 Mr. William F. Maguire Site Vice President Entergy Operations, Inc.

River Bend Station 5485 U.S. Highway 61N St. Francisville, LA 70775

SUMMARY

OF A TELEPHONE CONFERENCE CALL HELD ON AUGUST 6, 2018, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND ENTERGY TO CLARIFY THE FLUENCE INFORMATION IN SUPPORT OF THE RIVER BEND STATION, UNIT 1 LICENSE RENEWAL APPLICATION REVIEW (CAC NO. MF9757)

Dear Mr. Maguire:

The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Entergy Operations, Inc. (the applicant) held a telephone conference call on August 6, 2018, to discuss the information contained in Condition Report CR-RBS-2018-04206 that was provided to the NRC for awareness of an error in fluence calculations associated with the license renewal application. The conference call was held to facilitate efficiency in the review by fostering additional discussions to ensure that the staff has a correct understanding of fluence information in this condition report so the staff can appropriately address the issue in the safety evaluation report, if necessary.

The conference call participants are listed in Enclosure 1. Enclosure 2 summarizes the discussions. Mr. David Lach of your staff agreed that all the responses would be formally submitted to the NRC in accordance with previously established schedules.

August 15, 2018 If you have any questions, please contact me by telephone at 301-415-4084 or via e-mail at Emmanuel.Sayoc@nrc.gov.

Sincerely,

/RA/

Emmanuel Sayoc, Project Manager License Renewal Project Branch Division of Materials and License Renewal Office of Nuclear Reactor Regulation Docket No. 50-458

Enclosures:

1. List of Participants for the August 6, 2018 Telephone Conference Call

2. Summary of Discussions

ML18225A215 OFFICE PM:MRPB:DMLR BC: MRPB:DMLR LA:MRPB:DMLR PM:MRPB:DMLR NAME ESayoc EOesterle SLent Awong for ESayoc DATE 08/14/2018 08/14/2018 08/14/2018 08/15/2018

LIST OF PARTICIPANTS FOR THE AUGUST 6, 2018, TELEPHONE CONFERENCE CALL PARTICIPANTS AFFILIATIONS Allen Hiser U.S. Nuclear Regulatory Commission (NRC)

David Alley NRC James Medoff NRC Emmanuel Sayoc NRC Albert Wong NRC Garry Young Entergy Nuclear Operations Inc. (Entergy)

David Lach Entergy Mark Spinelli Entergy Stan Batch Entergy Todd Sherman Entergy Dennis Pereira Entergy Mike Cooper Entergy Randy Gauthreaux Entergy Lisa Borel Entergy Shawn Lamb General Electric Hitachi (GEH)

Scott Pfeffer GEH Christopher Edgar GEH

SUMMARY

OF DISCUSSIONS The applicant stated that an error had been discovered in the General Electric Hitachi (GEH) fluence calculation report 003N2078 Revision 1, a document used to support the River Bend Station License Renewal Application (LRA). This error was caused by two digits being inadvertently transposed in the irradiation time calculations. The error led to an underestimation of the fluence values in cycles 10 and 11. However, due to the margin built into the future operating cycles, this error did not impact the validity of the fluence values stated in the LRA, as amended. This issue was documented in RBS Condition Report CR-RBS-2018-04206.

The staff requested that the applicant formally document this issue in a letter to the NRC so it can be docketed. The staff plans to address its impact in the safety evaluation report.