ML18142B247

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LER 1976-025-00 for R. E. Ginna, Unit 1, Leak at Residual Heat Removal System Return Pipe Vent
ML18142B247
Person / Time
Site: Ginna Constellation icon.png
Issue date: 11/09/1976
From: White L
Rochester Gas & Electric Corp
To: O'Reilly J
NRC/IE, NRC Region 1
References
LER 1976-025-00
Download: ML18142B247 (6)


Text

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rgrl+OISTB lBUTION Fo>> ART 50 DOC: 'IATCRI L INCII)IBIT BI".I'OR'P TP: J.P.O'REILLY FIlpM. ROCHESTER DATE OF DOCUMLNT ROCHESTER, NY. 11-9-76 L.D. WHITE,JR . DATE flECCIVED I I 11-12-76 C3LETTEf1 QNOTORIZEO PROP V

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-II OCOPY j I I -- 30 DESCRIPTION ENCLOSUflE LTR. 'kRANS THE FOLLOWING...'... LICENSEE EVENT REPORT 8 76-25, ON 10-10-76

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CONCERNING LEAK AT WELDOLET TO NIPPLE WELD ON 3/4>> VENT! ON RHR RETURN LINE......

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( 30 CARBON SIGNED CYS. RECEIVED)

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PIdQET NAME: RE GINNA // 1 NOTE: IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J .COLLINS

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~ Itr ROCH ES TER GAS AND EL EC TRI C CORPORA T ION o 89 EAST AYENUE, ROCHESTER, N.Y. I4649 LEON D. WHITE, JRi TELEPHONE VICE PRESIOENT ARCr COCE Tttt 5~6.?700 November 9, 1976 PocKETE0 g%,.$

4 Mr. James P. O'Reilly, Director gO.V r'Lts7-s >

U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement QrII L'e II'l bIC4I EIcII, >>

8 Region I 631 Park Avenue King of Prussia, Pennsylvania 19406

Subject:

Reportable Occurrence 76-25 (30-day report), Leak at Residual Heat Removal System return pipe vent R. E. Ginna Nuclear Power Plant, Unit No. 1 Docket No. 50-244

Dear Mr. O'Reilly:

In accordance with Technical Specifications, Article 6.9.2b, the attached report of Reportable Occurrence 76-25, 30-day, is hereby submitted. Two additional copies of this letter and the attachment are enclosed.

Very truly yours, t

rC r'C r v~rCdrr/y I L. D. Whi'te, Jr.

Attachment cc: Dr. Ernst Volgenau (30)

Mr. William G. McDonald (3)

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CONTROL BLOCK: (PLEASE PRINT ALL REQUIRED INFORMATION)

~ot N Y UCENSEE R

NAME 5 G 1 1

0 0 I 0 EIBEMEE MBMBEB 0 0 0 0 0

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KE:EIYBI EYyt tE 0 4 1 MBEMEE EYPE 1 1 1 ~03 EVENT TYPE

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7 89 14 15 25 26 30 31 32 REPORT REPORT CATEGORY TYPE SOURCE DOCKET NUMBER EVENT DATE REPORT DATE

[061IOON"t L ~L 0 5 0 0 2 4 4 1 0 1 0 7 6 1 1 0 9 7 6 7 8 57 58 59 60 61 68 69 74 75 80 I

EVENT DESCRIPTION Jog Durin o eration of RHR s stem an o erator noted small uddle on floor and discovered 7 8 9 80 leak at weldolet to nipple weld on 3/4" vent on RHR return line. This is similar to I

7 89 80 tppj4 Reportable Occurrence 74-5. Replaced nipple and rewelded using approved procedures.

7 8 9 80 (Reportable Occurrence 76-25, 30-day) .

7 8 9 Ett89I 7 PRME SYSTEM CAUSE COMPONENT COMPONENT CODE CODE COMPONENT CODE SUPPUER MANUFACTURER VGLATGN 7

[ogtj LLGGGGP 8 9 10

~II0 11 12 P I P 5 X X 17 N

43 44 K 0 5 5 47 48 CAUSE DESCFIIPTION tppi Stresses were induced due to improper fitup of nipple to socket during construction.

7 8 9 80 fpgg] Nipple appeared bottomed in socket. New nipple proper]y installed.

7 8 9 Qo]

7 89 METHOD OF 80 FACILITY STATUS POWER OTHER STATUS DISCOVERY, DISCOVERY DESCRIPTION

~G ~OO O By operator 7 8 9 10 12 13 44 45 46 80 FORM OF AMOUNT OF ACTIVITY LOCATION OF RELEASE NA 7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION

~EB ~00 0 P NA 7 89 11 12 13 80 PERSONNEL INJURIES NUMBER DESCRIPTION M .

IEEEl ~oo o 7 89 11 12 80 OFFSITE CONSEQUENCES Q~g 7 89 80 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION t116L 7 89 10 80 PUBLICITY ,E NA 7 89 80 ADDITIONAL'ACTORS NA 7 89 80 7 89 80 NAME'ack Noon pqDNE. 7 1 6. 546-2700, ext. 29 1-2 15 GPO II8) ~ 6 ST

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