ML20215E887

Forwards Safety Evaluation Supporting 861124 Relief Request from ASME Code,Section XI,1980 Edition Through Winter 1981 Addenda for Inservice Insp of Plant Components,Specifically, Reactor Coolant Pump

ML20215E887
Person / Time
Site:	Arkansas Nuclear
Issue date:	12/11/1986
From:	Stolz J Office of Nuclear Reactor Regulation
To:	Campbell G ARKANSAS POWER & LIGHT CO.
Shared Package
ML20215E891	List: ML20215E887 ML20215E913
References
NUDOCS 8612230156
Download: ML20215E887 (3)

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' Docket No. 50-313 December 11, 1986 Mr. Gene Campbell

-Vice President, Nuclear Operations Arkansas Power and Light Company P. O. Box'551 Little Pock, Arkansas 72203

Dear Mr. Campbell:

.This is to respond to your letter dated November 24, 1986, wherein you requested relief.from requirements of IWB-2430(a) and IWB-2420(b) of ASME Boiler and Pressure Vessel Code,Section XI, 1980 Edition through Winter 1981 Addenda, Rules for Inservice Inspection of Nuclear Power Plant Components.

Your specific request was (1) to delay examination of a second reactor coolant pump (RCP) of Arkansas Nuclear One, Unit-1, until the next refueling outage and (2) not to perform successive inservice radiographic examinations of "A" RCP. During an inservice inspection of "A" RCP casing at the current refueling outage, you detected a relatively long flaw indication using conventional radiographic techniques. The Code requires, together with other requirements, a volumetric examination of another RCP during the current refueling outage and successive inservice volumetric examinations of "A" RCP casing.

The enclosed Safety Evaluation (SE) sets forth our findino with respect to our approval of the request for relief.

The relief is based upon our review of the information you submitted to support your determination that compliance with the ASME Code Inservice Inspection requirement would be impractical for your facility at this time and that the alternate examinations proposed for "A" RCP casings and the second pump ("B" PCP casing) and the recent analyses of "A" and "B" RCP casings and inspection of the "B" RCP casing will provide adequate assurance of the "A" and "B" pumps' structural integrity. We have determined that the examinations for which relief has been reauested and approved are impractical, the alternates to be performed at the next refueling outage on "B" RCP casing and successive examinations of "A" RCP casing and the analyses and inspections performed at this current refueling outage will provide adequate assurance of both rurus' structural integrity, and pursuant to 10 CFR Part 50.55a(g)(6)(1), that the granting of this relief is authorized by law and will not endanger life or l

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2 property or the common defense and security and is otherwise in the public interest. In making this determination, we have given due consideration to the burden that could result if these requirements were imposed on your facility.

Please note that the enclosed Safety Evaluation addresses specific information which is to be reported to us no later than three months prior to the next examinations.

Sincerely, Gee For John F. Stolz, Director PWR Project Directorate #6 Division of PWR Licensing - B

Enclosure:

Safety Evaluation cc w/ enclosure:

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Mr. G. Campbell Arkansas Nuclear One, Unit 1 Arkansas Power & Light Company cc:

.Mr. J. Ted Enos, Manager Nuclear Engineering and Licensing Arkansas Power & Light Company P. O. Box 551

'Little Rock, Arkansas 72703 Mr. James M. Levine, Director Site Nuclear Operations

' Arkansas Nuclear One

-P. O. Box 608 Russellville, Arkansas 72801 Mr. Nicholas S. Reynolds Bishop, Liberman, Cook, Purcell & Reynolds 1200 Seventeenth Street, N.W.

Washington, D.C. 20036 Mr. Pobert B. Borsum Babcock & Wilcox

• Nuclear Power Generation Division Suite 220, 7910 Woodmont Avenue Bethesda, Maryland 20814 ,

Resident Inspector.

U.S. Nuclear Regulatory Commission P. O. Box 2090 Russellville, Arkansas 72801 Regional Admin'strator, Region IV U.S. Nuclear Regulatory Commission Office of Executive Director for Operations 611 Ryan Plaza Drive, Suite 1003 Arlington, Texas 76011 Mr. Frank Wilson, Director Division of Environmental Health Protection Department of Health Arkansas Department of Health -

4815 West Markham Street Little Rock, Arkansas 72201 Honorable William Abernathy County Judge of Pope County Pope County Courthouse Russellville, Arkansas 72801 l

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