ML20094M412

Provides NRC Requests & Util Positions Re Interim Plugging Criteria,Per 920323 Telcon.Revised TS Pages to Correct Editorial Errors in Pages 3/4 4-17 & B3/4 4-3a Submitted by Util Encl

ML20094M412
Person / Time
Site:	Farley
Issue date:	03/27/1992
From:	Woodard J SOUTHERN NUCLEAR OPERATING CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20094M414	List: ML20094M412 ML20094M416
References
NUDOCS 9203310214
Download: ML20094M412 (3)

Text

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Docket No. 50-364 U. S. Nuclear Regulatory Commission ATIN: Document Control Desk Washington, DC 20S55 Joseph M. farley Nucicar Plant - Unit 2 Interim Piqqgjna Crrjjeria Gentlemen:

In a telephone conversation on March 23, 1992, the farley NRC Staff Project Manager requested that Southern 14uclear Operating Company (Southern Nuclear) undertake four actions which had previously been discussed with the Staff, lhe NRC requests and Southern Nuclear's positions are provided below.

1. NHC Recnit.

The licensee's eddy current test guidelines (Attachment 7 to letter dated February 7,1992) shall be revised to require that all flaw indications (as defined in Section A.3.1 of Appendix A to WCAP-12871, Revision 2) be recorded, regardless of voltage amplitude.

Southern Nuclear Position Southern Nuclear will record all flaw indications regardless of voltage amplitude.

2. BRC Recuesi RPC flaw indications not found by the bobbin due to masking effects (due to denting, artifact indications, noise) shall be plugged or repaired. Tubes with greater than 5.0 volt dents (as measured with the bcSbin) shall be plugged or repaired if they are found to exhibit RPC flaw indications.

Southctn_N.gtlear Positjan RPC flaw indications not found by the bobbin due to masking effects (due to denting, artifact indications, noise) will be plugged or repaired. Tubes with greater than 5.0 volt dents (as measured with the bobbin) will be plugged or repaired if they are found to exhibit RPC flaw indications.

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3. li1LRtq9. git ,

lhe licensen shall inform the Staff, prior to Cycle 9 o>eration, of any unexpected inspection findings relative to i tie assumed characteristics of the flaws at the 1Sps. 1his includes any detectable circumferential indications or detectable indications extending outside of the tsp thickness.

The licensee's safety evaluation of these unexpected findings shall also be provided.

Iguthern flucicar position

~ Southern fluclear will inform the NRC, prior to Cycle 9 operation, of any onexpected inspection findings relative to the assumed characteristics of the flaws at the 15ps. 1his includes any detectable circumferential indications or detectable indications outside the 1SP thickness. Any applicable safety evaluations for unexpected findings will be provided to the NRC.

4. HRC_Re.qvmi l The Staf f's approval of the proposed interim repair limit 12 contingent on the licensee's being able to demonstrate that acceptance of all indications satisfying the 1.0 volt criterion will not create potential for leakage in excess of the 1.0 gpm licensing basis for a postulated SLB occurring at f0C 9. lho licensee is requested to submit the results of the SLB leakage analysis prior to restart from the eighth refueling outage. ,.

LDulkcDLRKlR3r _perition the predicted Sul leakage will be reported to the Staff prior  ;

to restart from the eighth refueling outage for Unit 2,  ;

Southern Huclear ur.derstends and accepts that the Staff's approval of the interim repair limit is contingent on the demonstration that the predicted Sl0 leakage at COC 9 will not exceed 1 gpm.

The above positions are applicable only to the Unit 2 ninth operating cycle upon approval of the interim plugging criteria.

In addition to the above, revised Technical Specification pages to correct editorial errors in pages 3/4 4-17 and B3/4 4-3a submitted by Southern Nuclear letter dated february 20, 1992 are attached. . The changes to these pages restore existing wording to portions of the pages which were not revised in support of the-interim plugging criteria, lhose changes have no ,

impact on the significant hazards evaluation included with Soathern Nuclear's Febr uary 20. 1992 letter, y- y a w .f.---~y-,-.c y.,rr.%.my. ,,u,% %y.,.yy-.w we, .,,.un- ,-y,r,m.r,,v-,,w,,.w,. . eg.,,.-m..w,g .,.me.r,.w.p.m..w,y,,,,-_v.3,n .y. F rv- e e . .vwe v - u - ww - .ie' - rw= re

O S. fluclear Regulatory Commission Page 3 If there are any questions, please advite.

Respectfully submitted, SOV1HERN NUCLEAR OPERATING COMPAfJY

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-J4j D Woodard JDW/ REM: map SWORN TO At10 SUBSCRIBLO BEFORE ME Attachment THI" 0 7 DAY Of A ,, 199?

cc: Mr. S. D. Ebneter q Mr. S. T. Hoffman pq(' Notary . lic ~~~

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Mr. G. F. Maxwell My Comm ssion Expires: [.-@j -Sp

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