05000220/LER-1979-017-03, /03L-0 on 790612:containment Spray Water Intertie Valves Leaked Causing Failure of Integrated Leak Rate Test. Valves Removed,Cleaned & re-installed

/03L-0 on 790612:containment Spray Water Intertie Valves Leaked Causing Failure of Integrated Leak Rate Test. Valves Removed,Cleaned & re-installed

ML18037A182
Person / Time
Site:	Nine Mile Point
Issue date:	07/09/1979
From:	Duda E NIAGARA MOHAWK POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18037A180	List: 05000220/LER-1979-016, Forwards LER 79-016/03L-0 & LER 79-017/03L-0 05000220/LER-1979-016-03, /03L-0 on 790626:failure to Review Temporary Electrical Maint Procedure within Seven Days.Review Made & Approvals Received 05000220/LER-1979-017-03, /03L-0 on 790612:containment Spray Water Intertie Valves Leaked Causing Failure of Integrated Leak Rate Test. Valves Removed,Cleaned & re-installed
References
LER-79-017-03L, LER-79-17-3L, NUDOCS 7907130385
Download: ML18037A182 (2)

LER-1979-017, /03L-0 on 790612:containment Spray Water Intertie Valves Leaked Causing Failure of Integrated Leak Rate Test. Valves Removed,Cleaned & re-installed

Event date:
Report date:
2201979017R03 - NRC Website

text

U. S. NUUI LAH HCLRULAI UH Y IPUIVIMII55IUI51 NRC FORM 36G

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8 CON'T

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~OS LICENSEE EVENT REPORT

'CONTROL BLOCK:

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LICENSEE CODE 14 15 LICENSE NUMBER

{PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION) 3 0~O 25 26 LICENSE TYPE 30 57 CAT 58 QB 0

9 7

QB 74 75 REPORT DATE 80 soUROE ~LO 0

5 0

0 0

2 2

0 Q 60 61 DOCKET NUMBER 68 69 EVENT DATE EVFNT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 During refuel outage, while erformin Primar Containment Inte rated Leak Rat'e Test, the Containment Spray Raw Water Intertie Blockin Valves were found to be leaking, causing failure of the ILRT.

This 'resulted in minimal safety implications.

~OG

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SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE CODE SUBCODE COMPONENTCODE SUBCODE SUBCODE

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10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE AEPOAT R EV IS I ON LF RIRO EVENT YEAR REPORT NO.

CODE TYPE Ne.

Q11 REPoRT

~79

~

~01 7

~~

~03

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~

~0 21 22 23 24 26 27 28 29 30 31 32 ACTION. FUTURE EFFECT SHUTDOWN ATTACHMENT NPRDA PRIME CoiMP.

COINIPONENT TAKEN ACTION ON PLANT METHOD HOURS +22 SUBMITTED FOAM SUB.

SUPPLIER MANUFACTURER QTR /JOE

~Q26

~~

0 0 0

0 N

IQ23

~~/24

~~ORE 0

E O26 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 Containment Spray Raw Hater Intertie Valves were removed, their seating su'rfaces

cleaned, and they were re-installed.

Subsequent ILRT passed.

4 3O METHOD OF Q

DISCOVERY

~CQ31 Integr a ted 44 45 TIG QB NA 5

~G Q28 ~00 0

QR NA 7

8 9

10 12 13 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITY G

~Z Q33 Z

Q34 NA 7

8 9

10 11 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTIOM Q39

~oo 0

Q32 z Q

NA 7

8 9

11 12 13 PERSONNEL INJURIES 6 ~00 0

Q46 NA 44' 4

45 9

11 12 LOSS OF OR DAMAGETO FACILITYQ43 TYPE

DESCRIPTION

Q42 NA 7

8 7

8 9

10 PUBLICITY ISSUED DESCRIPTION~

LNJQ44 NA 9

10 O

7 8

NAME OF PREPARER E.

Duda

~90V~30m CD.

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9 FACILITY STATUS 0EPOWER OTHER STATUS DISCOVERY DESCRIPTIOM Q2 Leak Rate Test LOCATION OF RELEASE Q NRC USE ONLY GB 69 (315)343-2110 X1306

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