ML20126B513

Forwards Proposed Task Interface Agreement Requesting NRR Take Lead Responsibility for Review of once-through Steam Generator Plug Problem & Evaluate Licensee Analyses & Proposed Corrective Actions.Review Requested by Fall 1984

ML20126B513
Person / Time
Site:	Three Mile Island
Issue date:	08/15/1984
From:	Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:	Eisenhut D Office of Nuclear Reactor Regulation
Shared Package
ML20126B295	List: 05000289/LER-1981-013, Forwards LER 81-013/01T-0 Re Leaking Found in Steam Generators.Event Reportable Per Tech Spec 6.9.2.A(3). Supporting Documentation Encl IA-84-897, Forwards Safety Evaluation Re Increase in once-through Steam Generator Primary to Secondary Leakage Rate,Per NUREG-1019 & Suppl 1.Rate Acceptable ML20126B293 ML20126B302 ML20126B316 ML20126B321 ML20126B337 ML20126B342 ML20126B358 ML20126B376 ML20126B390 ML20126B412 ML20126B435 ML20126B467 ML20126B475 ML20126B493 ML20126B504 ML20126B513 ML20126B520 ML20126B560 ML20126B563 ML20126B585 ML20126B592 ML20126B610 ML20126B618 ML20126B623 ML20126B635 ML20126B639 ML20126B648 ML20126B650 ML20126B656 ML20126B658 ML20126B667 ML20126B670 ML20126B684 ML20126B688 ML20126B701 ML20126B708 ML20126B716 ML20126B719 ML20126B739 ML20126B751 ML20126B758 ML20126B766 ML20126B784 ML20126B797 ML20126B806 ML20126B825 ML20126B831 ML20126B879 ... further results
References
FOIA-84-897 NUDOCS 8506140122
Download: ML20126B513 (4)

Text

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,j NUCLEAR REGULATORY COMMISSION REGION I

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'*****,o' KING OF PRUSSIA, PENNSYLVANIA 19406 AUG 151984 Docket No. 50-289 MEMORANOUM FOR: Darrell G. Eisenhut, Director, Division of Licensing FROM: Richard W. Starostecki, Director, Division of Project and Resident Programs, Region I

SUBJECT:

- TMI-1 OTSG'S WESTINGHOUSE STYLE ROLLED PLUGS On Juns 25, 1984, it was discovered that OTSG tube number A-135-72 was not plugged in the upper tube sheet (plug later found in different tube), although it was required to be plugged and supposedly plugged in June 1983 with a Westinghouse Style Mechanical Rolled plug. A complete photographic verifica-tion of all plugged tubes containing this type plug was performed by the licensee following this discrepancy. This verification revealed that five additional Westinghouse plugs (three plugs in the "A" generator's lower tube sheet and two in the "B" generator's lower tube sheet) were missing. Discuss-ions with the licensee indicate a test program will be developed by GPUN Techn.ical Functions, in conjunction with Westinghouse, to ensure that the remaining plugs are in tact. In addition, a safety analysis is being prepared by GPUN Technical Functions, in conjunction with B&W, to confirm the prelimi-nary evaluation that the presence of the five missing roll.ed plugs in the bottom of the reactor vessel will not impair the thermal hydraulic performance of the reactor.

This forwards the proposed Task Interface Agreement (TIA) (Enclosure 1) requesting NRR take lead responsibility on review pf the TMI-1 OTSG plug problem and evaluate GPUN's analyses and proposed corrective actions. This review will need to be completed prior to the TMI start-up, estimated to be in the fall of 1984.

Region I has designated E. Conner (FTS 488-1355) as the point of contact for this TIA. ,7

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k Richard W. Starostecki, Director Division of Project and Resident l Programs, Region I cc w/ encl: ~

D. Crutchfield, AD/SA, NRR J. Stolz, Chief, ORB-4, NRR J. VanVliet, PM, ORB-4, NRR R. Wessman, TA, AD/SA, NRR

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- Director, Division of-Licensing, NRR 2 becw/ enc 1:

' E. Greenman, DPRP

. E. Conner, DPRP .

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- S. Ebneter, DETP.

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4 ENCLOSURE 1 TASK NO.:

DATE:

PROPOSED TASK INTERFACE AGREEMENT TAC #: -

PROBLEM: TMI Missing OTSG's Westinghouse Rolled Plugs LEAD OFFICE O. I&E . d7 NRR O REGION O J0 INT NOTIFICATION:

REFERENCES:

Memo to D.'Eisenhut from R. Starosteckt dated . ,

subject: Transfer of Lead Office and Request for Assistance-TMI OTSB's Westinghouse Style Rolled Plugs . .

ACTION PLAN:

NRR: (1) Assume lead responsibility for resolution of loose and missing Westinghouse rolled plugs identified by licensee in letter dated July 3, 1984 (Hukill, GPUM to Stolz, NRR) ,

-(2) Evaluate technical and safety aspects of loose and missing plugs identified at TMI-1. Evaluation should address licensee's inspection program and findings, lic'ensee's plans for operation, and repair

. program. -

(3) Review the results of QPUN test program and safety analysis addressing this subject.

(4) Designate Lead Project Manager to assign TACs.and coordinate corre-spondence, meetings, and reports, if necessary. Prepare final report .

stating NRR findings to Region I-for closecut in NRC Inspection Report.

REGION I: (1) Inspect onsite inspection and repair activities, as appropriate.

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IE: (1) Prepare Bulletin or Notice, if appropriate. .

OFFICE COORDINATORS:

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Gary Holahan (X27415)- R. Vollmer APPROVED: (X27817' G. Lainas

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R. Baer, I&E -

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Richard W. Starostecki Region I (X28213) l

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cc: V.IStello,ROGR J. Durr, RI H. Thompson, NRR R. Wessman, DL

- Regional Admins. .E. Conner, RI T. Speis, NRR G. Holahan, DL J. Heltemes, AE0D. R. Conte,-RI R. Mattson, DSI C.' McCracken,MTEB N. Grace, IE *'

, D. Eisenhut, NRR

.J. Taylor, I&E R. Vollmer, NRR-E. Jordan, I&E~ G. Lainas, NRR

, - R. Baer, I&E T. Novak, NRR .

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E. Case', NRR R. Baer,_IE E. Case, NRR J._VanV11et H. Silver 9

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