ML20133P930

Board Notification 85-033:informs That in Order to Avoid Potential Limitations on Plant Readiness for Restart,Util Will Proceed to Plug All Tubes W/Eddy Current Indications Exceeding Tech Spec Plugging Limit

ML20133P930
Person / Time
Site:	Three Mile Island
Issue date:	04/02/1985
From:	Thompson H Office of Nuclear Reactor Regulation
To:	Asselstine, Palladino, Roberts NRC COMMISSION (OCM)
References
TASK-AS, TASK-BN85-033, TASK-BN85-33 BN-85-033, BN-85-33, NUDOCS 8508140537
Download: ML20133P930 (2)

Text

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-l NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 k *****

./ April 2, 1985 Docket No. 50-289 MEMORANDUM FOR: Chairman Palladino Commissioner Roberts Commissioner Asselstine Commissioner Bernthal Commissioner Zech FROM:

Hugh L. Thompson, Jr. , Director Division of Licensing, NRR

SUBJECT:

BOARD NOTIFICATION (BN 033 )

RECENT DEVELOPMENTS RELATED TO TMI-1 STEAM GENERA This Notification is being provided to the Comission in accordance with the revised Commission's notification policy of July 6,1984, to inform the Commission may on all issues involve substantial on the public, press, or cases beforeinterest.

Congressional the Comission or issues w With reference letter dated Merchto BN-85-028 dated March 15, 1985, the licensee informed us by 29, 1985 (enclosed), that in order to avoid any potential limitations on plant readiness for restart it will proceed to plug all tubes with eddy current indications exceeding the present Technical Specification plugging limit depth of 40% through wall. This repair is scheduled to be completed before the middle of April.

The licensee requested that we continue our review of their request to revise the plugging limit with regard to any future defects.

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. Jr fughL7 Thomson,Jr., Director N

Division of Licensing, NRR

Enclosure:

As Stated cc w/ enclosure:

See next page 8508140537 850402 PDR ADOCK 05000289 P PDR

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cc.w/ enclosure:

Judge Sheldon J. Wolfe, ASLB Judge Gustava A. Linenberger, Jr., ASLB

Judge Ivan W. Smith, ASLB Judge Reginald L. Gotchy, ASLAB Judge Christine N. Kohl, ASLAB Judge Gary L. Edles, ASLAB Parties to Hearing

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. Wrder's Dife:I 0:a' Nurr.ce' March 29,1985 5211-85-2057 Office of Nuclear Reactor Regulation Attn: J.F.Stolz, Chief ,

Operating Reactor Branch No. 4 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Dear Mr. Stolz:

Three Mile Island Nuclear Station Unit 1 (T111-1)

Operating License No. DPR 50 Docket No. 50-E8g Steam Generator Repair Limits By letters dated Januery 31 and March 1,1985, GPU Nuclear Corporation requested approval of revised repair criteria, i.e., plugging linits, for the steam generator tubes. As documented in those letters, this approach is technically sound and does not constitute an unreviewed safety question. We have reached the point, however, where we must act now to avoid any potential limitations on TMI-1 plant readiness for restart. Accordingly, I have determinea to proceed immediately to plug the steam generator tubes in accordance with the existing repair limits specified in Technical Specification paragraph 4.19.4.a.6. cf the cperating license.

We ask that the staff continue its technical review of cur regest so as to help us avoid unnecessary plugging in the future.

! We will advise you when the plugging has been ccmpleted.

Very truly yours, 3 P.R. Clark President PRC/mak f[2 b GPU Nuc! ear Co ;staten :s a s'.:sd ary Of Ga .eralPt.c' C Utd t es Corcerat on