ML13226A359

Arkansas Nuclear One, Unit 2, Clarification to Request for Relief ANO2-ISI-016, Code Case N-770-1 Successive Examination

ML13226A359
Person / Time
Site:	Arkansas Nuclear
Issue date:	08/14/2013
From:	Stephanie Pyle Entergy Operations
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
2CAN081302, TAC MF0331
Download: ML13226A359 (2)

Text

2CAN081302 August 14, 2013

U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 SUBJECT: Clarification to Request for Relief ANO2-ISI-016 Code Case N-770-1 Successive Examination Arkansas Nuclear One, Unit 2 Docket No. 50-368 License No. NPF-6

REFERENCES:

1. Entergy letter dated June 25, 2013, "ASME Code Case N-770-1 Successive Examination Request for Relief ANO2-ISI-016" (2CAN061303) (ML13176A403) 2. NRC email dated July 25, 2013, "Proposed Request for Alternative, ASME Code Case N-770-1 Successive Examination Request for Relief ANO2-ISI-016" 3. NRC Memorandum dated February 26, 2013, "Arkansas Nuclear One, Unit No. 2 - Summary of Telephone Conference Call Re: Verbal Authorization for Revised Relief Request ANO2-ISI-007 (TAC No.

MF0331)" (ML13052A470) 4. NRC letter dated May 30, 2013, "Arkansas Nuclear One, Unit No. 2 -Request for Alternative AN02-ISI-007, ASME Code Case N-770-1 Baseline Examination (TAC NO. MF0331)" (ML13129A298) Dear Sir or Madam:

Pursuant to 10 CFR 50.55a(a)(3)(ii), Entergy Operations, Inc., (Entergy) requested relief from the requirements of the American Society of Mechanical Engineers (ASME) Code Case N-770-1, as conditioned by 10 CFR 50.55a(g)(6)(ii)(F) pertaining to volumetric examinations of the dissimilar metal welds associated with the Reactor Coolant Pump suction and discharge piping at Arkansas Nuclear One, Unit 2 (ANO-2) (Reference 1). The essentially 100%

required weld examination coverage cannot be obtained on the eight welds in question due to interference or geometry. Stephenie L. Pyle Manager, Licensing Arkansas Nuclear One Entergy Operations, Inc. 1448 S.R. 333 Russellville, AR 72802 Tel 479-858-4704 2CAN081302 Page 2 of 2 The NRC notified Entergy via Reference 2 that the Reference 1 submission was lacking in important information that is necessary to perform their review and therefore the submittal was found to be unacceptable with opportunity to supplement. A conference call was held on August 6, 2013, to clarify the information related to the submittal. Pursuant to this conference call discussion, the following information is provided to clarify the submittal. The intent of Reference 1 is to scan the welds with the same technology used previously (phased array ultrasonics) and acquire at a minimum the amount of coverage reported and approved via References 3 and 4. The desire for this relief request is to have a pre-approval in place prior to the next scheduled refueling outage for ANO-2 in which this examination will be performed (2R23, Spring 2014), thereby not being required to file emergent relief to exit that outage; Entergy intends to scan the welds and obtain as a minimum the same coverage that was approved in References 3 and 4; and The duration of the relief request is for 54 months, which is the duration that was previously approved (Reference 3 and 4). This request requires NRC approval prior to completing 2R23. To support this outage, Entergy requests approval of this request by March 31, 2014.

This submittal contains no regulatory commitments. Should you have any questions, please contact me.

Sincerely, Original signed by David B. Bice for Stephenie L. Pyle SLP/rwc

cc: Mr. Steve A. Reynolds 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. O. Box 310 London, AR 72847 U. S. Nuclear Regulatory Commission Attn: Mr. Kaly Kalyanam MS O-8 B1 One White Flint North 11555 Rockville Pike Rockville, MD 20852