05000244/LER-1976-027, Updated LER 76-027/03O-1:on 761216,liquid Noticed Coming Through Insulation on 2-inch Letdown Diversion Line.Caused by Pinhole Leak in Socket Weld Between Pipe & Elbow.Section Line Replaced

Updated LER 76-027/03O-1:on 761216,liquid Noticed Coming Through Insulation on 2-inch Letdown Diversion Line.Caused by Pinhole Leak in Socket Weld Between Pipe & Elbow.Section Line Replaced

ML20084B773
Person / Time
Site:	Ginna
Issue date:	05/27/1977
From:	Hamelink D, White L, Witte J ROCHESTER GAS & ELECTRIC CORP.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20084B776	List: 05000244/LER-1976-027, Updated LER 76-027/03O-1:on 761216,liquid Noticed Coming Through Insulation on 2-inch Letdown Diversion Line.Caused by Pinhole Leak in Socket Weld Between Pipe & Elbow.Section Line Replaced
References
LER-76-027-03O, LER-76-27-3O, NUDOCS 8304070085
Download: ML20084B773 (2)

LER-2076-027, Updated LER 76-027/03O-1:on 761216,liquid Noticed Coming Through Insulation on 2-inch Letdown Diversion Line.Caused by Pinhole Leak in Socket Weld Between Pipe & Elbow.Section Line Replaced

Event date:
Report date:
2442076027R00 - NRC Website

text

o LER 76 ? /3O gdato Ronnrt - Previouc P , ort Date 1/4/77 LICENSEE EVENT RE T CONTROL LEOCK:l l l l  ! l l (PLEASE PRINT ALL HEQumED INFORMATION) 1 u A E LCENSE NUMDIR PE TYPE 01 I 7 09 NlY lR l E l Gl 1l 14 l0l0l-l0l0l0l0l0l-l0l0l l4 l 1l1l 1l 1l l0l3l 1b 25 26 30 31 32 cA1E GONY Y DOCKET NUMnf A EVENT DATE REPOHT DATE 7 0 01 con 7 l 57 l

bu l @ 59

[ L,j 60 l0 l 5 l 0 l-l 0 l 2l 4 l 4 ]

01 68

]1l2l1l6l7l6l 09 74 l0 l 5l2 l7 l7 l 7]

75 80 EVENT DLSCRIPTION g l During normal rounds operator noticed liquid coming through insulation on 2" letdown l 7 00 80 Q l diversion line. Upon return to steady state letdown condition, line was isolated. l 7 89 80 g l (Reportable Occurrence 76-27, 30-day) . l 7 oO Bo

@l 7 H9 I

80 8I 7 09 I

nwt 80 f$t CoCfE COMPONENT CODE St MA J CT R VIOLATION Q lC l G l [BJ 7 09 10 l PlI lP lE lX lX l lN l lBl1l3l0l @

11 12 17 43 44 47 48 CAUSE DESCHIPTION 3 l A pinhole leak was found in socket weld between pipe and elbow. Weld was built up l 7 o9 co g l in area of leak, and a visual inspection performed upon return of system to service ver-l 7 HO g l ified leak was stopped. This section of line was (cont'd. under Additional Factors) 80l

's'iS"r2 s POwin Orntn status o"

"!s'COvtny DISCOVERY DUMRIPION 1

/ U W 10 lll0l0l 12 13 l NA ] W \ Operator making rounds l 44 45 46 80

$rT[$'lo $?EFSLE AMOUNT OF ACTIVOY LOCATON OF DELE ASE 7 0 W

9 Wl 10 NA l l NA l 11 44 45 80 PERSONNEL EXPOSURES NUVlitH TY5'E OlscorPf 0N i l0l 0l 0l lE l [ NA l

7 H9 11 12 13 80 PERSONNrL INJURIES NUMill H Of SC$UPf ON DE l 0 l 0 l 0 ] l NA l

7 00 11 12 80 OFFSITE CONSEQUENCES M l NA l

7 H9 80 LOSS OH DAMAGE TO FACILITY T Y S't OL SL6uPT ON E [jdj l NA 7 H9 10 i,UUllCli Y 8304070085 770527 80 PDR ADOCK 05000244 1

I NA S PDR

/ 09 I uo AOOlilONAL F ACTORS M l (cont'd. from Cause Description) replaced during refueling shutdown to remove weld l 7 00 80 g l which had been leaking. CAR 1111 was issued to document this corrective action.

7 09 l 80 NAME: James Witte/D. Hamelink ,716/546-2 700, ext. 291-215 meumavn

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fb ' a , , '8 une k ROCHESTER GAS AtID ELECTRIC CORPORATl014 e 89 EAST AVENUE. ROCHESTER,.H.Y.14649 I

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. LLON D WHlif J it t e t t et.ou j vitt eerout t a.a a crine ne S Iti-2 700 May 27,1977

Mr. James P. O'Reilly, Director -

i U. S. Nuclear Regulatory Commission  !

! Office of Inspection and Enforcement

^

Region I 631 Park Avenue King of Prussia, Pennsylvania 19406

Subject:

Supplemental reports on Reportable Occurrences:

{76-27)(30-day report) Leak in letdown diversion line 76-30 (30-day report) "A" mixed bed demineralizer inlet

, piping leak i R. E. Ginna Nuclear Power Plant, Unit No.1 Docket No. 50-244 I

Dear Mr. O'Reilly:

, The purpose of this letter is to provide you with corrected component

manufacturer information in connection with the subject reports which were submitted January 4 and January 12, 1977 respectively. The attached update j reports LER 76-27/30 and LER 76-30/30 provide this information.

Two additional copies of this letter and the attachments are enclosed

to conform to the original submittal of LER 76-27/3L and LER 76-30/3L.

• Very truly yours,

$bhxk, b l L. D. White, Jr.

4 cc: Dr. Ernst Volgenau (30)

Mr. William G. Mcdonald (3)

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