ML13282A582

Acceptance Review Email, Relief Request ANO2-ISI-004 - Alternative to Extend the Third 10-Year Inservice Inspection Interval for Reactor Vessel Weld Examinations

ML13282A582
Person / Time
Site:	Arkansas Nuclear
Issue date:	10/09/2013
From:	Kalyanam N Plant Licensing Branch IV
To:	David Bice, Clark R Entergy Operations
Kalyanam N
References
ANO2-ISI-004, TAC MF2319
Download: ML13282A582 (2)

Text

From: Kalyanam, Kaly To: BICE, DAVID B (ANO) (DBICE@entergy.com); CLARK, ROBERT W (RCLARK@entergy.com)

Cc: Burkhardt, Janet

Subject:

Acceptance Review Report on Request for Relief No. ANO2-ISI-004 (TAC No. MF2319)

Date: Wednesday, October 09, 2013 12:39:33 PM The SUNSI information as follows:

The SUNSI information as follows:

Plant: Arkansas Nuclear One, Unit 2 Docket No.: 50/368

Subject:

Acceptance Review Report on Request for Relief No. ANO2-ISI-004 (TAC No. MF2319)

TAC No.: MF2319 SUNSI Review Done: Yes. Publicly Available, Normal Release, Non-sensitive, From: N. Kalyanam To: D. Bice/R. Clark

Subject:

Acceptance Review Result for Relief No. ANO2-ISI-004 (TAC No. MF2319)

Dave/Bice:

By letter dated April 24, 2013, Entergy Operations, Inc. (Entergy, the licensee),

requested that an additional weld be included in their previously approved request for alternative to the requirements of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Code,Section XI, Paragraph IWB-2412, Inspection Program B, for Arkansas Nuclear One, Unit 2 (ANO-2). The previously proposed alternative, which was approved by the NRC via safety review on September 21, 2010 (ADAMS Accession No. ML102450654), extended the volumetric examination frequency of essentially 100% of the reactor vessel pressure retaining Examination Category B-A and B-D welds from once each ten-year interval to once every 20 years. This alternative was based upon the methodology outlined in Pressurized Water Reactor Owners Group (PWROG) Topical Report (TR) WCAP-16168-NP, Revision 2, Risk-Informed Extension of the Reactor Vessel In-Service Inspection Interval. The licensees referenced additional request included an additional weld that was omitted from the prior request for alternative, and inspection relief for the additional weld was therefore not previously requested nor granted.

The purpose of this e-mail is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance review of this additional request for alternative.

The acceptance review was performed to determine if there is sufficient technical information in scope and depth to allow the NRC staff to complete its detailed technical review. The acceptance review is also intended to identify whether the application has any readily apparent information insufficiencies in its characterization of the regulatory requirements or the licensing basis of the plant.

Pursuant to Sections 50.55a(a)(3)(i) of Title 10 of the Code of Federal Regulations (10 CFR), the applicant shall demonstrate that the proposed alternative would provide an acceptable level of quality and safety. The NRC staff has reviewed the licensees application and concludes that it does provide technical information in sufficient detail to enable the staff to proceed with its detailed technical review and make an independent assessment regarding the acceptability of the additional request for alternative in terms of regulatory requirements and the protection of public health and safety and the environment. If additional information is needed for the staff to complete its technical review, the licensee will be advised by separate correspondence.

Note that since examination relief was not previously granted for the additional weld included in the licensees referenced request, as a part of the safety evaluation review, the NRC staff will consider the need for any appropriate enforcement action that may be necessary resulting from any required examinations that did not occur for the subject additional weld. If such enforcement is deemed necessary, the licensee will be advised by separate correspondence.

If you have any questions, please contact me at (301) 415 1480.

N. Kalyanam Project Manager, ANO-1 and 2 NRC/NRR/DORL/LPL4