1CAN011506, Responses to Request for Additional Information Time Limited Aging Analysis Regarding Reactor Vessel Internals Loss of Ductility for Arkansas Nuclear One, Unit 1 at 60 Years
| ML15028A492 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 01/26/2015 |
| From: | Pyle S Entergy Operations |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML15028A495 | List:
|
| References | |
| 1CAN011506 | |
| Download: ML15028A492 (2) | |
Text
vEntergy Entergy Operations, Inc.
1448S N eR.
333 Russellville, AR 72802 Tel 479-858-4704 Stephenie L. Pyle Manager, Regulatory Assurance Arkansas Nuclear One 1CAN01 1506 January 26, 2015 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555
SUBJECT:
REFERENCES:
Responses to Request for Additional Information Time Limited Aging Analysis Regarding Reactor Vessel Internals Loss of Ductility for Arkansas Nuclear One, Unit 1 at 60 Years Arkansas Nuclear One, Unit 1 Docket No. 50-313 License No. DPR-51 1
Entergy letter to NRC dated May 6, 2014, "Time Limited Aging Analysis Regarding Reactor Vessel Internals Loss of Ductility for Arkansas Nuclear One, Unit 1 at 60 Years" (1CAN051401) (ML14126A816) 2 NRC email to Entergy, dated December 12, 2014, "Official Use Only -
Sensitive Proprietary - Request for Additional Information - ANO, Unit 1
- Time-Limited Aging Analysis Regarding Reactor Vessel Internals - TAC No. MF4203"
Dear Sir or Madam:
Entergy Operations, Inc. (Entergy) submitted a Time-Limited Aging Analysis (TLAA) for the reactor vessel internals. This analysis addressed the loss of ductility due to the exposure of neutron radiation in the reactor vessel internal components at Arkansas Nuclear One, Unit 1 (ANO-1), at 60 calendar years (Reference 1).
The NRC Staff has reviewed the submittal and developed a request for additional information.
This request was provided via Reference 2. The purpose of this submittal is to provide the requested information.
AREVA document ANP-3281 Q1 P, "Response to NRC Request for Additional Information on Time-Limited Aging Analysis for the ANO-1 Reactor Vessel Internals," has been prepared with the responses to the request. The information contained in the AREVA document is considered proprietary to AREVA. Attachment 1 is the proprietary version of the document. A Attachment I to this letter contains proprietary information - Attachment I is withheld from public disclosure per 10 CFR 2.390.
1CAN0 11506 Page 2 of 2 non-proprietary version of the AREVA document is included in Attachment 2. AREVA requests that the proprietary information be withheld from public disclosure in accordance with 10 CFR 2.390. AREVA has provided Entergy with authorization to provide the proprietary information.
An affidavit by the information owner, AREVA, supporting the request for non-disclosure is provided in Attachment 3. Therefore, Entergy requests that Attachment 1 of this submittal be withheld from public disclosure in accordance with 10 CFR 2.390.
No new regulatory commitments are included in this letter.
If you have any questions or require additional information, please contact me.
Sincerely, SLP/rwc
Attachment:
- 1. AREVA document ANP-3281 Q1 P, "Response to NRC Request for Additional Information on Time-Limited Aging Analysis for the ANO-1 Reactor Vessel Internals," PROPRIETARY
- 2. AREVA document ANP-3281 Q1 NP, "Response to NRC Request for Additional Information on Time-Limited Aging Analysis for the ANO-1 Reactor Vessel Internals," NON-PROPRIETARY
- 3. Affidavit cc:
Mr. Marc L. Dapas Regional Administrator U. S. Nuclear Regulatory Commission Region IV 1600 East Lamar Boulevard Arlington, TX 76011-4511 NRC Senior Resident Inspector Arkansas Nuclear One P. 0. Box 310 London, AR 72847 U. S. Nuclear Regulatory Commission Attn: Ms. Andrea E. George MS O-8B1 One White Flint North 11555 Rockville Pike Rockville, MD 20852 Attachment I to this letter contains proprietary information - Attachment I is withheld from public disclosure per 10 CFR 2.390.