ML15082A297
| ML15082A297 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 04/03/2015 |
| From: | Michael Orenak Plant Licensing Branch IV |
| To: | Entergy Operations |
| Wang A | |
| References | |
| TAC MF5174 | |
| Download: ML15082A297 (3) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Vice President, Operations Entergy Operations, Inc.
Waterford Steam Electric Station, Unit 3 17265 River Road Killona, LA 70057-3093
/\\pril 3, 2015
SUBJECT:
WATERFORD STEAM ELECTRIC STATION, UNIT 3-REQUEST FOR ADDITIONAL INFORMATION REGARDING THE SPRING 2014 STEAM GENERATOR TUBE INSPECTIONS (TAC NO. MF5174)
Dear Sir or Madam:
By letter dated November 6, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14314A032), Entergy Operations, Inc. (the licensee), submitted information summarizing the results of the spring 2014 steam generator tube inspections performed at Waterford Steam Electric Station, Unit 3. These inspections were performed during refueling outage 19. By letter dated October 7, 2014 (ADAMS Accession No. ML14150A100), the U.S. Nuclear Regulatory Commission (NRC) staff summarized a conference call held with the licensee regarding the spring 2014 steam generator tube inspections.
The NRC staff has reviewed the information and determined that additional information is needed in order to complete the review. Please provide the additional information requested in the enclosure within 45 days of receipt of this letter.
If you have any questions, please contact me at 301-415-3229 or via e-mail at michael.orenak@nrc.gov.
Docket No. 50-382
Enclosure:
Request for Additional Information cc w/encl: Distribution via Listserv Sincerely, Michael D. Orenak, Project Manager Plant Licensing IV-2 and Decommissioning Transition Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 REQUEST FOR ADDITIONAL INFORMATION REGARDING THE SPRING 2014 STEAM GENERATOR TUBE INSPECTIONS ENTERGY OPERATIONS, INC.
WATERFORD STEAM ELECTRIC STATION, UNIT 3 DOCKET NO. 50-382 By letter dated November 6, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14314A032), Entergy Operations, Inc. (the licensee), submitted information summarizing the results of the spring 2014 steam generator tube inspections performed at Waterford Steam Electric Station, Unit 3 (WF3). These inspections were performed during refueling outage 19 (RFO 19). By letter dated October 7, 2014 (ADAMS Accession No. ML14150A100), the U.S. Nuclear Regulatory Commission (NRC) staff summarized a conference call held with the licensee regarding the spring 2014 steam generator tube inspections.
In order to complete its review, the NRC staff requests the following additional information:
- 1. General information concerning the design of WF3's replacement steam generators (SGs) was provided in the submittal. In order for the NRC staff to better understand the design of the replacement SGs, please provide the following information:
- a. Tube manufacturer
- b. Tube pitch (e.g., 1.00-inch center-to-center)
- c.
Expansion method (e.g., hydraulic expansion)
- d. Flow distribution baffle design and shape of openings, if applicable
- e. Whether tubes were stress relieved after bending, and if so, the rows that were stress relieved
- f.
The smallest U-bend radius
- g. Tubesheet thickness with and without clad
- 2. With regard to the secondary side inspections performed during RFO 19 (i.e., visual inspections of the upper steam drum, feed ring, spray nozzles, and support structures),
please confirm no degradation was observed.
Enclosure
ML14150A100), the U.S. Nuclear Regulatory Commission (NRC) staff summarized a conference call held with the licensee regarding the spring 2014 steam generator tube inspections.
The NRC staff has reviewed the information and determined that additional information is needed in order to complete the review. Please provide the additional information requested in the enclosure within 45 days of receipt of this letter.
If you have any questions, please contact me at 301-415-3229 or via e-mail at michael.orenak@nrc.gov.
Docket No. 50-382
Enclosure:
Request for Additional Information cc w/encl: Distribution via Listserv DISTRIBUTION:
PUBLIC LPL4-2 R/F RidsAcrsAcnw_MailCTR Resource RidsNrrDorlDpr Resource RidsNrrDorllp14-2 Resource RidsNrrPMWaterford Resource RidsNrrLAPBlechman Resource RidsRgn4MailCenter Resource ADAMS Accession No. ML15082A297 OFFICE NRR/DORULPL4-2/PM NRR/DORL/LPL4-2/LA Sincerely, IRA!
Michael D. Orenak, Project Manager Plant Licensing IV-2 and Decommissioning Transition Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
- via memo NRR/DE/ESGB/BC NRR/DORULPL4-2/BC NRR/DORL/LPL4-2/PM NAME MOrenak PBlechman (JBurkhardt for)
GKulesa*
MKhanna MOrenak DATE 3/27/15 3/30/15 3/18/15 4/1/15 4/3/15