ML17262A276

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Notifies of Postponement of EWR 4770 Until Results of Analysis Completed.Will Continue Weekly Rodding of Bubbler Tubes,In Accordance W/Tech Spec Table 4.1-1,Item 14
ML17262A276
Person / Time
Site: Ginna Constellation icon.png
Issue date: 12/20/1990
From: Mecredy R
ROCHESTER GAS & ELECTRIC CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9012310105
Download: ML17262A276 (4)


Text

ACCELERATED DISTRIBUTION DEMONST TION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:9012310105 DOC.DATE: 90/12/20 NOTARIZED: NO DOCKET g

FACIL:50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester G

05000244 AUTH.NAME AUTHOR AFFILIATION MECREDY,R.C.

Rochester Gas

& Electric Corp.

RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Notifies of postponement of EWR 4770 until results of analysis completed. Will continue weekly rodding of bubbler tubes, in accordance w/Tech Spec Table 4.1-1,Item 14.

DISTRIBUTION CODE A001D COPIES RECEIVED:LTR ENCL SIZE TITLE: OR Submittal:

General Distribution NOTES:License Exp date in accordance with 10CFR2,2.109(9/19/72).

05000244 RECIPIENT ID CODE/NAME PD1-3 LA JOHNSON,A INTERNAL: NRR/DET/ECMB 9H NRR/DOEA/OTSBll NRR/DST/SELB 8D NRR/DST/SRXB 8E OC/LFMB R

EE EXTERNAL: NRC PDR COPIES LTTR ENCL RECIPIENT ID CODE/NAME PD1-3 PD NRR/DET/ESGB NRR/DST 8E2 NRR/DST/SICB 7E NUDOCS-ABSTRACT OGC/HDS2 RES/DSIR/EIB NSIC COPIES LTTR ENCL NOTE TO ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM P 1-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED:

LTTR 18 ENCL

t

<isiri~zp' zziwzz Il isis'lixzsirr ROCHESTER GAS AND ELECTRIC CORPORATION 89 EAST AVENUE, ROCHESTER N. Y. 14649-0001 ROBERT C. MECREDY Vice President Clnna Nuclear Producsion December 20, 1990 TELEPHONE AREACODE 716 546 2700 U.S. Nuclear Regulatory Commission Document Control Desk Attn:

Allen R. Johnson Project Directorate I-3 Washington, D.C.

20555

Subject:

Postponement of EWR 4770 R.E.

Ginna Nuclear Power Plant Docket No. 50-244

Dear Mr. Johnson:

In RG&E's November 17, 1989 letter from Robert Mecredy to William

Russell, we stated that EWR 4770 was initiated to develop and install a new boric acid storage tank level monitoring system to replace the existing bubbler type.

The reason for this modification, originally scheduled for the 1991 refueling outage, was to remove the need for weekly rodding of the bubbler tubes as preventive maintenance.

Subsequent to that time, RG&E has initiated a study which would.

allow deletion of the need for high concentration (12 weight percent) boric acid.

Based on preliminary results, it appears that this analysis will be successful.

We have thus postponed EWR 4770 until the results of the analysis are complete.

At that time, we will determine if any modifications to the BAST level instrumentation should be made.

In the

meantime, RG&E will continue the weekly rodding of the bubbler
tubes, in accordance with Technical Specification Table
4. 1-1, item 14.

Very truly yours, Robert C. Mecred GJW/131

e xc: Mr. Allen R. Johnson (Mail Stop 14D1)

Project Directorate I-3 Washington, D.C.

20555 U.S. Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia, PA 19406 y

Ginna Senior Resident Inspector

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