NL-09-164, Response to Request for Additional Information Regarding Relief Request 09

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Response to Request for Additional Information Regarding Relief Request 09
ML093631143
Person / Time
Site: Indian Point Entergy icon.png
Issue date: 12/22/2009
From: Robert Walpole
Entergy Nuclear Northeast
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
NL-09-164, TAC ME1658
Download: ML093631143 (4)


Text

Entergy Nuclear Northeast Entergy Indian Point Energy Center 450 Broadway, GSB P.O. Box 249 Buchanan, NY 10511-0249 Robert Walpole Licensing Manager Tel 914 734 6710 December 22, 2009 NL-09-164 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001

SUBJECT:

Response to Request for Additional Information Regarding Relief Request 09 (TAC No. ME1658)

Indian Point Unit Number 2 Docket No. 50-247 License No. DPR-26

REFERENCE:

1. Entergy Letter NL-09-090 Regarding Relief Request 08 and 09 For Fourth Ten-Year Inservice Inspection Interval dated July 1, 2009.
2. NRC Letter, Indian Point Nuclear Generating Unit No.2 -Request for Additional Information Regarding Relief Request RR-09 (TAC NO.

ME1658), dated October 28, 2009

Dear Sir or Madam:

Entergy Nuclear Operations, Inc. (Entergy) submitted Relief Request 09 (RR-09) for Indian Point Unit No. 2 (IP2) in Reference 1. The NRC requested additional information in Reference

2. This letter responds to that request for additional information. The request and response are contained in Attachment 1.

There are no new commitments identified in this submittal. If you have any questions or require additional information, please contact Mr. Robert Walpole, Licensing Manager.

Very truly yours, RW/sp cc on next page

NL-09-164 Docket No. 50-247 Page 2 of 2

Attachment:

1. Response to Request for Additional Information Regarding Relief Request 09 cc: Mr. John P. Boska, Senior Project Manager, NRC NRR DORL Mr. Samuel J. Collins, Regional Administrator, NRC Region I NRC Resident Inspector's Office Indian Point Mr. Paul Eddy, New York State Department of Public Service Mr. Francis J. Murray, Jr., President and CEO, NYSERDA

Attachment 1 to NL-09-164 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REGARDING RELIEF REQUEST 09 ENTERGY NUCLEAR OPERATIONS, INC.

INDIAN POINT NUCLEAR GENERATING UNIT NO. 2 DOCKET NO. 50-247

NL-09-164 Attachment 1 Docket 50-247 Page 1 of 1 Response to Request for Additional Information Reqarding Relief Request (RR)-09 By letter dated July 1, 2009, Accession No. ML091950333, Entergy Nuclear Operations, Inc.

(Entergy) submitted relief request (RR)-09 for Nuclear Regulatory Commission (NRC) review and approval. The request was to implement an alternative to the requirements of 10 CFR 50 paragraph 55a(g)(6)(ii)(D)(3) regarding inservice inspection (ISI) of the reactor vessel upper head nozzles at Indian Point 2. NRC staff questions on that submittal and Entergy responses are as follows:

Question 1 In Section 1 of RR-09, on page 1 of 3, you referred to "Examination Category: B-E, Item Number: B4.12,

Description:

Control Rod Drive Nozzles, Code Class: 1," which does not exist in the American Society for Mechanical Engineers Boiler and Pressure Vessel Code, Section Xl, 2001 Edition through 2003 Addenda. Please clarify and state the correct components.

Response

The components affected by this relief request are the Reactor Vessel Upper Head Control Rod Drive Nozzles. These components are not required to be inspected by volumetric or surface examination methods in the ASME code of record at Indian Point 2, therefore, there is no Examination Category for the Control Rod Drive Nozzles. These components are contained in mandatory Code Case N-729-1 which is required to be implemented by 10CFR50.55a(g)(6)(ii)(D) and are listed as Item Number B4.20 in Table 1 of Code Case N-729-1.

Question 2 Please provide verification that your ultrasonic examination process is qualified in accordance with 10 CFR 50.55a for circumferential and axial flaw detection below the J-groove weld extending to the distance specified in Table 1 of your submittal.

Response

Our ultrasonic inspection vendor (WesDyne) has verified that their system is qualified in accordance with 10 CFR 50.55a for circumferential and axial flaw detection below the J-groove weld extending to the distance specified in Table 1. However, it should be noted, that a limited number of Control Rod Drive Nozzle Penetrations have thermal sleeves which do not yet have a 1 OCFR 50.55a qualified examination process for flaw detection above the J-groove weld (see Relief Request RR-08)