Letter Sequence RAI |
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MONTHYEAR1CAN041002, Fourth 10-Year Inservice Inspection Interval, Request for Alternative ANO1-R&R-013, Repairs to the Pressurizer Instrumentation Penetrations2010-04-0505 April 2010
Fourth 10-Year Inservice Inspection Interval, Request for Alternative ANO1-R&R-013, Repairs to the Pressurizer Instrumentation Penetrations
Project stage: Request
1CAN041004, Supplemental Information to Fourth 10-Year Inservice Inspection Interval Request for Alternative ANO1-R&R-013 Repairs to Pressurizer Instrumentation Penetrations2010-04-12012 April 2010
Supplemental Information to Fourth 10-Year Inservice Inspection Interval Request for Alternative ANO1-R&R-013 Repairs to Pressurizer Instrumentation Penetrations
Project stage: Supplement
ML1010302132010-04-13013 April 2010
Acceptance Review Email, Relief Request ANO1-R&R-013, Proposed Alternative to Requirements Associated with Repair of Components
Project stage: Acceptance Review
ML1012604132010-05-13013 May 2010
Request for Withholding Information from Public Disclosure - Affidavit Executed by Gayle Elliott, Areva Np Inc. on April 9, 2010
Project stage: Withholding Request Acceptance
ML1010406012010-05-13013 May 2010
Request for Withholding Information from Public Disclosure - Affidavit Executed by M. Taylor, Structural Integrity Associates on 4/9/2010
Project stage: Withholding Request Acceptance
ML1032703482010-11-23023 November 2010
Responses to Branch Chiefs Questions, Arkansas Nuclear One, Unit 1 - E-mail Fourth 10-Year Inservice Inspection Interval, Request for Alternative ANO1-R&R-013, Repairs to Pressurizer Instrumentation Penetrations
Project stage: Request
ML1032703402010-11-23023 November 2010
Email Fourth 10-Year Inservice Inspection Interval, Request for Alternative ANO1-R&R-013, Repairs to Pressurizer Instrumentation Penetrations
Project stage: Request
ML1034807502010-12-14014 December 2010
Request for Additional Information Email Sent 10-13-2010, Request for Alternative ANO1-R&R-013, Fourth 10-Year Inservice Inspection Interval, Repairs to the Pressurizer Instrumentation Penetrations
Project stage: RAI
ML1034806822010-12-14014 December 2010
Request for Additional Information Email, Request for Alternative ANO1-R&R-013, Fourth 10-Year Inservice Inspection Interval, Repairs to the Pressurizer Instrumentation Penetrations
Project stage: RAI
ML1035703332011-01-0303 January 2011
Verbal Authorization of Request for Alternative ANO1-R&R-013
Project stage: Other
1CAN011101, Response to Request for Additional Information, Regarding the Request for Alternative ANO1-R&R-013, Repairs to the Pressurizer Instrumentation Penetrations2011-01-0606 January 2011
Response to Request for Additional Information, Regarding the Request for Alternative ANO1-R&R-013, Repairs to the Pressurizer Instrumentation Penetrations
Project stage: Response to RAI
ML1034301562011-01-10010 January 2011
Relief Request ANO1-R&R-013, Proposed Alternative to Requirements Associated with Repair of Components, for Duration of ANO-1 Spring 2010 Refueling Outage 1R22
Project stage: Approval
2010-04-05
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Text
From:
Kalyanam, Kaly Sent:
Tuesday, December 14, 2010 11:12 AM To:
CLARK, ROBERT W Cc:
Lent, Susan; Burkhardt, Janet
Subject:
RAI - Questions from the CPNB Branch CHief
- Bob, I am formalizing the Request for Additional Information sent on October 13, 2010, to Entergys Request for Alternative ANO1-R&R-013, Fourth 10-Year Inservice Inspection Interval, Repairs to the Pressurizer Instrumentation Penetrations.
Thanks.
N. Kalyanam PM, Arkansas Nuclear One, Unit 1 and 2 and Waterford 3.
The SUNSI information as follows:
Plant: Arkansas Nuclear One, Unit 1 Docket No.: 50-313
Subject:
RAI on Requests for Alternative ANO1-R&R-013 TAC Nos.: ME3701, SUNSI Review Done: Yes. Publicly Available, Normal Release, Non-sensitive, From: N. Kalyanam To: Robert Clark
- 1. On page 8, question no. 10, of the licensees letter of response to the staff RAI dated April 12, 2010, the licensee stated in part, These nine penetrations consist of seven penetrations that are one-inch (nominal pipe size) nozzles that are attached to the pressurizer with a partial penetration weld located at the inside surface of the pressurizer. The other two penetrations consist of a 1.5-inch diameter thermowell that is attached to the pressurizer with a partial penetration weld located at the inside surface of the pressurizer, and a smaller thermowell that was installed through a spare penetration that was originally a one-inch nozzle similar to the other seven discussed above. Please clarify the sentence underlined/bold. Is this the 10th nozzle?
Please explain.
- 2. Flaw evaluation document ANO-34Q-326, pages 4, 5, and.. talk about Self Similar Crack Growth assumption and indicates that this assumption is a conservative approach. Please describe underlying nature of Self Similar Growth and state why this assumption is considered conservative approach.
- 3. Was buttering applied/used between the J-groove attachment weld and the pressurizer carbon steel shell at the nozzle location?
