ML20126B897

Forwards Hopenfeld 920327 Write Up of Generic Issue Re Multiple SG Tube Leakage.Document Inadvertently Omitted from Package Prepared for 921201 Meeting

ML20126B897
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	12/08/1992
From:	Perkins K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
To:	Marbet L AFFILIATION NOT ASSIGNED
References
NUDOCS 9212220268
Download: ML20126B897 (3)

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l UNITED STATES NUCLEAR REGULATORY COMMISSION

5. E REGION V

• 7.

• 1450 MARIA LANE

% ,, ,,,, WALNUT CREEK. CALIFORNIA 94596-5368 DEC 4 1992 Lloyd K. Marbet 19142 S.E. Bakers Ferry Road Boring, Oregon 97009

Dear Mr. Marbet:

In your letter of November 25, 1992, you requested a copy of the Licensee Event Report for the November 9 steam generator tube leak at Trojan, and copies of the documents requested by Robert D. Pollard in his November 23 letter to the NRC.

The LER has not yet been received in Region V. As you know, PGE has thirty days to submit an LER following a reportable event. We will send you a copy of the LER as soon as we receive it.

The package of materials we provided to you and others at the December 1 meeting at Trojan contained all the documents requested by Mr. Pollard, except for the June 16, 1992 memorandum from E.S. Beckjord to Thomas E. Murley. This document merely transmits Dr. Hopenfeld's March 27 write up of his new generic issue. It was inadvertently left out of the packages prepared for the December 1 meeting. A copy is enclosed.

If you need further assistance or have other question on this matter, please let me know, or contact our public affairs officer, Greg Cook, at 510/975-0346.

Sincerely, b '

K. E. F as, Jr. , Director Divisioi. Reactor Safety and Pro,iects

Enclosure:

As Stated cc w/o enclosure:

G. Cook L. Kokajko 9232220268 921208 PDR ADOCK 05000344 P PDR gy I

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/ .

JUN16 f1N2 .

Thomas E. Murley, Director  !

MENORANDUM FOR:

Office of Nuclear Reactor Regulation FRC+1: Eric 5. Beckjord, Director Office of Nuclear Regulatory Rassarch .

SUBJECT:

A NEW GENERIC ISSUE: NULT!PLE STEAM GENERATOR TUBE LEAXAGE A Differing Professional Opinion (OPO) was recently filed in the Offica of Research regarding staan generator tube integrity during a postulated main steam line break (MSLB). The OPO apacifically addressed the operation of steam generators with microscopic tube wall cracks. This concem deals with the possibility of having multiple steam generator tube leaks during a MSLB that cannot be isolated. This sequence could lead to cere melt resulting from the loss of all primary system coolant and safety injection fluid in the refueling water storage tank. The DP0 recoemended that plants operating under these conditions have additional sources of borated water readily available to replenish the refueling water storage tank. It was agreed to resolve the DP0 that this concern would be proposed as a new generic issue. This new generic issue is entitled, " Multiple Steta Generator Tube Leakage,' the details of which are enclosed. Since your staff is currently evaluating the issue of microscopic cracks in stata generator tubes, we are submitting this information to you for your review. This is also in accordance with RES Office Letter No.1, Revision 3, ' Procedure for Identification. -

Prioritization, and Tracking of the Resolution of Generic Issues," page 3, second paragraph, which states:

'After their acceptance, generic issues that originate frca

. outside NRR or from an individual within NRR (i.e., not sent through NRR management) will be transmitted by RES to NRR/PMAS for an innedtate action deterstnation and screening for identification of overlap or duplication with already ir. posed or completed Multi-Plant Actions (MPAs). If HRR cannot complete this imediate action detemination and MPA screening within 15 days, RES should be infomed when the NRR review will be completed.'

Ve will also keep you inferred of our progress in resolving this issue.

cRromL 8TGIMDN

• hEricLc .Sh.aws.

5. Beckjord, Director yoffice of Nuclear Regulatory Research

Enclosure:

As stated cc: F. Gillespie J. Richardson A. Thadant CONCURRENCE: SEE PREVIOUS CONCURRENCE gf 0FFICE:RES:CSIR RES:DSIR T. KING

• R 6HERS DD/RES T.SPE!S 00/RES

$ 0/l Y C.HELTEMES E.I ' BORD NAME: G.HARIN0* .

DATE: 6/11/92 6/11/92 6/W/92 6/ /92 6/ /92 6/[92 g>7-,.gf4 ess ll

2 DEC B 192 COOK [dfg RICHARDS PERKINS 12/ 7 /92 12/9/92 12/?/92 REQUEST COPY REQUEST COPY REQUEST COPY YES ET 0 0 YES O NO $ YESON0f SEND TO DCS SEND TO PDR YES 00 YES 9' O I

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