ML18142B876

LER 1975-002-00 for R. E. Ginna, Small Leak at Letdown Line Drain Weld

ML18142B876
Person / Time
Site:	Ginna
Issue date:	05/08/1975
From:	White L Rochester Gas & Electric Corp
To:	O'Reilly J NRC/IE, NRC Region 1
References
LER 1975-002-00
Download: ML18142B876 (6)

Text

I 'I 4i'L'ip/VK h4A ENL NRC DIS BUTION FOR PART 50 DOC ET I ERIAL (TEMPORARY FORM)

CONTROL NO:

FILE. XNCXDENT REPORT FXLE FROM. Rochester Gas 6 Elec. Co. DATE OF DOC DATE REC'D LTR TWX RPT OTHER Rochester, -N.Y.

L.D. White 5-8-75 5-20-'5 XX TO: ORIG CC OTHER SENT AEC PDR James P. O'Reilly 1 Sign'ed SENT LOCAL PDR CLASS UNCLASS PROP INFO INPUT NO CYS REC'D DOCKET NO:

50-244 DESCRIPTION: ENCLOSURES: 'V k

Ltr. trans the following. ~ ~ ~ Abnorm. Occurr. 8 75-02,'on 4-18<<75, concern-ing Small Leak at letdown l'ine drainpreld... ~ . ~

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ziti' I; , 10AC AA liirziiul /'ziizzzz ROCH ES TER GAS AND ELEC TRI C CORPORATION o 89 EAST AVENUE, ROCHESTER, N.Y. 14649 I.EON D. WHITE, JR. TCLCPHONC VICC PRCSIDCNT ARCA CODC 7IC 546-2700

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4 Mr. James P. O'Reilly, Director /I.",

I/IAI U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region I 631 Park Avenue King of Prussia, Pennsylvania 19406

Subject:

Unusual Event 75-02, Small leak at letdown line drain weld.

R. E. Ginna Nuclear Power Plant, Unit No. 1 Docket No. 50-244

Dear Mr. O'Reilly:

In accordance with Technical Specifications, Article 6.6.2b, the attached report of Unusual Event 75-02 is hereby submitted. Two additional copies of this letter and the attachment are enclosed.

Very truly yours,

~M@.

L. D. White, Jr.

Attachment cc; Mr. Donald F. Knuth (30)

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EVENT REPORT LICENSEE CONTROL BLOCK: (PLEASE PRINT ALL REQUIRED INFORMATION) 1 UCENSEE LICENSE EVENT NAME LICENSE NUMBER TYPE TYPE Jog N Y R E Q I 0 0 0 0 0 0 0 0 0 4 1 I I I ~03 7 89 14 15 25 26 30 31 32 REPORT REPORT CATEGORY TYPE SOURCE DOCKET NUMBER EVENT DATE REPORT DATE

~01 GQNT ~MI L L 0 5 0 0 2 4 4 0 4 1 8 7 5 0 5 0 8 7 5 7 8 57 58 59 60 61 68 69 74 75 80 I

EVENT DESCRIPTION toa~] During routine operations a small leak was found on a letdown line drain line reducer 7 8 9 80 weld. The leak was repaired per the approvqdI EM-108 Emergency Maintenance 7 89 80

~04 Procedure. PORC reviewed the event and corrective action taken, and determined no 7 8 9 80

[oas) further corrective action was necessary. (Unusual Event '50-244/75-02) 7 8 9 80 Jog 7 8 9 PRME 80 SYSTEM CAUSE COMPONENT COMPONENT CODE CODE COMPONENT CODE SUPPUER MANUFACTURER

[onrj~CG A P I P E XX 0 H 9 9 9 N 7 8 9 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION Jog The weld, erformed durin construction in a relativel inaccessible location was 7 8 9 80 Jog applied such that there was a weld arc start on top of a stop leaving an area of incom-7 8 9 80

~10 piete fusion. This resulted in a weak point in the weld (Cont'd. in Additional Factors) 7, 89 80 FACILITY METHOD OF STATUS POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION Q~g D ~oo o NA B routine shutdown operations 7 8 9 10 12 13 44 45 46 80 FORM OF ACTIVITY COATENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE H Fi NA NA 7 8 9 10 .11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION

~3~OO O Z NA 7 8 9 11 12 13 80 PERSONNEL INJURIES NUMBER DESCRIPTION

~<< ~oo o NA 7 8 9 -

11 12 80 OFFSITE CONSEQUENCES

[<is] NA 7 89 80 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION

[i(s) p 7 89 10 80 PUBLICITY NA 7 89 80 ADDITIONAL FACTORS Qg8 Cause Descri tion cont'd. ultimatel leadin to the develo ment of the leak.

7 9 80 7 89 80 NAME: ames W. Witte PHDNE. 716 546 2700 Ext. 291-214 GPO Sst 6$ 7

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