ML17309A149

LER 81-006/03L-0:on 810323,immediate Borate Valve Outlet Piping Found Leaking.Probably Caused by Stress Corrosion Cracking.Investigation Underway

ML17309A149
Person / Time
Site:	Ginna
Issue date:	04/22/1981
From:	Spector S ROCHESTER GAS & ELECTRIC CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML17258A983	List: ML17258A981 ML17309A149
References
CAR-1296, LER-81-006-03L, LER-81-6-3L, NUDOCS 8104280509
Download: ML17309A149 (2)

Text

NRC WIVL3Isee U. S. NUCLEAR REGULATORY COMMISSION (7.77) 8 1-00 6/0 3L-0 ICENSEE EVENT REPORT (CAR 1296)

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~01 7 8 9 NYREG1Qso0-00000-00041111Q~Qs LICENSEE CODE I

14 15 6

LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 CON'T

~01 ~LQB 0 5 0 0 0 2 4 4 Q7 0 3 2 3 8 1 QB 0 4 2 2 8 1 QB 7 8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABL,E CONSEQUENCES Q10 Durin o erator tour leaka e was seen at immediate borate valve outlet i in

~Q3 {T.S. 6.9.2.b{4). Line was immediately isolated for repair. Two flow paths from boric acid tanks remained opera'ole.

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~os 80 7 8 9 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

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12 13 P I P E X X Q4 ~AQs ~ZQs 20 7 11 18 19 SEOUENTIAL OCCURRENCE REPORT REVISION LER/RO EVENT YEAR REPORT NO. CODE TYPE NO.

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~03 28 29

~L 30 31 32 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRD 4 PRIME COMP. COMPONENT TAKEN ACTION ON PLANT METHOD HOURS +22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER

~O>>~Os 33 34

~Oso 35

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36 37 0 0 40 41 N On MNQ24 42 HNQn 43 44 B 1 3 0 47 Qto CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 o Possible stress corrosion crackin . Examination showed famil of cracks on exterior surface, some thru-wall. Pipe section was removed for metallurgical analysis to confirm cause. With unit in AE60 all similar areas of piping will be inspected. Pipe 3 is 150 psi sch 10 304 SS containing 12% boric acid.

~O 7 8 9 80 FACILITY METHOD OF STATUS  % POWER OTHER STATUS Q30 DISCOVERY DISCOVERY DESCRIPTION Q32 CO 1 5 E ACTIVITY 028 1 CONTENT 0 0 29 NA 44 L~JQ>>

45 46 Operator tour 80 6

RELEASED OF RELEASE

~Z Q33 Z Q34 AMOUNTOF ACTIVITYQ35 NA NA LOCATION OF RELEASE Q 7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUI'ABER TYPE DESCRIPTION Q39

~l7 ~00 0 Qot ~ZQss NA 7 8 9 11 12 13 80 PERSONNEL INJURIES NUMBER DESCRIPTIONQ41 7

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o Qo 12 NA 11 80 LOSS OF OR DAMAGE TO FACILITY TYPE DESCRIPTION Q43 B ~ZQ42 NA 7 8 9 10 80 PUBLICITY

~20 ISSUED

~NQ44 DESCRIPTION Q NA NRC USE ONLY 7 8 9 10 68 69 80 NAME oF PRFPARER S ~ M Spector

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PHDNE.

315-524-4446, ext. 214

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