05000244/LER-1981-004-03, /03L-0:on 810211,containment Fan Cooler Unit C Condensate Dumps & Sump a Pumping Rate Increased During Normal Steady State Operation.Probably Caused by Galvanic Reaction of Carbon Steel Plug in Copper Motor Cooler

/03L-0:on 810211,containment Fan Cooler Unit C Condensate Dumps & Sump a Pumping Rate Increased During Normal Steady State Operation.Probably Caused by Galvanic Reaction of Carbon Steel Plug in Copper Motor Cooler

ML17309A132
Person / Time
Site:	Ginna
Issue date:	02/25/1981
From:	Spector S ROCHESTER GAS & ELECTRIC CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML17258A838	List: 05000244/LER-1981-004, Forwards LER 81-004/03L-0 05000244/LER-1981-004-03, /03L-0:on 810211,containment Fan Cooler Unit C Condensate Dumps & Sump a Pumping Rate Increased During Normal Steady State Operation.Probably Caused by Galvanic Reaction of Carbon Steel Plug in Copper Motor Cooler
References
CAR-1284, LER-81-004-03L, LER-81-4-3L, NUDOCS 8103030819
Download: ML17309A132 (2)

LER-1981-004, /03L-0:on 810211,containment Fan Cooler Unit C Condensate Dumps & Sump a Pumping Rate Increased During Normal Steady State Operation.Probably Caused by Galvanic Reaction of Carbon Steel Plug in Copper Motor Cooler

Event date:
Report date:
2441981004R03 - NRC Website

text

CONTROL BLOCK and sump A pumping became more frequent.

Service water to C unit was isolated and 4

these indications stopped.

(T.S. 3.3.2.1.'C)

The 3 other units remained operable.

NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION ET.TTT 81-004/03L-0 ICENSEE EVENT REPORT (CAR 1284)

Qi (PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION)

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1 0 0

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0 0

0 0 0 '4 1

1 1

1 0~0 7

8 9

LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 CON'T

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5 0

0 0

2 4

4 QT 0

2 1

1 8

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2 2

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8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10

~o2 During normal steady state operation C containment fan cooler unit condensate dumps Inspection revealed drain plug had fallen out, and there was a small leak at a second 6

drain plug in C unit motor cooler.

~O7

~OB 80 7

8 9

~OB 7

8 SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

~SB QTT E

QTE

~DOER H

T 8

X C H 0 LCJQER L~J0 9

10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION LF RIRO EVENT YEAR REPORT NO.

CODE TYPE NO.

QTT REPQRT ~81

~

~00 4

~W

~03

~L

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0 21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRDP PRIME COMP, COMPONENT TAKEN ACTION ON PLANT METHOD HOURS Q22 SUBMITTED FORM SUB.

SUPPLIER MANUFACTURER

~08~0>>

~088 ~0 0

0 0

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+NQER

~NQEE

~AQEE W

1 2

0 QER 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 Probable galvanic reaction of carbon steel plug in copper motor cooler.

Both plugs were replaced and all others were inspected for leakage.

During next refueling outage drain plugs for all the motor coolers willbe replaced.

Unit is Westinghouse 40,000 3

cfm, 50 x 10 BTU/hr. fan cooler.

METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32

~AQ3I Fan cooler dumps + sump pump runs 45 LOCATIONOF RELEASE Q NA 45 NRC USE ONLY 68 69 PHQNE1315-524-4446 xt S. M. S ector Bi08'08 ILL'"'""""'"

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8 9

FACILITY STATUS

% POWER OTHER STATUS QBO 8

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QER ~~~

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10 12 13 44 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITYQ36 ZZ ~~

Q33 L~lQ34 NA 7

8 9

10 44 PERSONNEL EXPOSURES NUIVIBER TYPE DESCRIPTION Q39

~ET ~00 0

QOT Z

088 NA 7

8 9

11 12 13 PERSONNEL INJURIES 7

8 9

11 12 LOSS OF OR DAMAGETO FAG LITYQ TYPE

DESCRIPTION

Z Q42 NA 7

8 9

10 P U8 LIC ITY ISSUED DESCRIPTIONQ

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