05000317/LER-1981-049-03, /03L-0:on 810608,containment RMS Pump Failed Resulting in Loss of Containment Gaseous & Particulate Radiation Monitor.Caused by Pump Normal End of Life.Pump Replaced

/03L-0:on 810608,containment RMS Pump Failed Resulting in Loss of Containment Gaseous & Particulate Radiation Monitor.Caused by Pump Normal End of Life.Pump Replaced

ML20009D643
Person / Time
Site:	Calvert Cliffs
Issue date:	07/08/1981
From:	Lagiewski J, Rayburn C BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20009D642	List: 05000317/LER-1981-049, Forwards LER 81-049/03L-0 05000317/LER-1981-049-03, /03L-0:on 810608,containment RMS Pump Failed Resulting in Loss of Containment Gaseous & Particulate Radiation Monitor.Caused by Pump Normal End of Life.Pump Replaced
References
LER-81-049-03L, LER-81-49-3L, NUDOCS 8107240248
Download: ML20009D643 (1)

LER-1981-049, /03L-0:on 810608,containment RMS Pump Failed Resulting in Loss of Containment Gaseous & Particulate Radiation Monitor.Caused by Pump Normal End of Life.Pump Replaced

Event date:
Report date:
3171981049R03 - NRC Website

text

NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION (7-17i*

o' LICENSEE EVENT REPORT CONTROL BLOCK: l l

l l

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(PLE ASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1012 l l MI 01 C l C l Nl 1l@l 0 l 0 ] -l 01010 l 0 l 0 l - l 010 l@l 4 l1 l111 l 11@l l

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7 8 9 LICENSEE CODE 14 15 LICENSE NUMBEH 25 26 LICENSE TYPE JO

$7 CAT $8 COWT l0l1l C"C lL l@l 0l 5 l 0 l 01013 l 117 l@l 0 l 6 l 0 l 8 l 8 l 1 l@l 0 l 7 l 0 l 8 l 8 l 1 l@

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60 61 DOCKET NUMBER 68 69 EVENT DATE 14 7S REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l o 121 1 At 0815, during nomal operation, the Containment Radiation Monitorina I

[ o i 31 l System (RMS) pump failed resulting in a loss of the Containment gaseous l

I o 141 I and particulate radiation monitor (T.S. 3.4.6.1).

The redundant RMS I

lO isi i pump was immediately started and flow restored to the gaseous monitor.

I o e i The particulate monitor was returned to service at 1310. The contain-I lo l7l [

ment sump level alarm system remained operable during this event. LER I

i O ta i l 80-46 (U-1) describes a similar occurrence.

I DE CODE SUSCO E COMPONENT CODE SUBC DE S

DE loisi l B l B l @ [_E_j @ [F_j @ l P l U l M l P l X [ X l@ l G l @ W @

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9 10 11 12 13 18 19 20 SEQUE NTI AL OCCU R R E NCE REPORT REVISION LE R. RO EVENT YE AR REPORT NO.

CODE TYPE N O.

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22 23 24 26 27 28 29 30 J1 32 AK N ACT ON ON PLANT T

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33 34 35 36 3/

40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h lilo l l The sample pump seized durina operation and was removed from service.

I i i It was replaced with a spare.

It acDears that the arachite numn vanes I 2 l

bound up and broke off causino seizure. This is a nomal end o# life i

i,l3l l failure. We are investigatina a Preventive Maintenance Program and l

ii i41 l the replacement of Conde Pumps.

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8 9 80 STA S

% POWER OTHER STATUS DIS O RY DISCOVERY DESCRIPTION [i_[s_j W @ l11010l@l NA l

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ACTIVITY CO TENT RELEASED OF RELE ASE AMOUNT OF ACTIVITY LOCATION OF RELE ASE I1 l6 i LzJ @ LZJ@l NA l

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eERsONNEt ExPOsS ES NUMBER TYPE

DESCRIPTION

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(301) 269-4747/4803 NAME OF PREPARER PHONE: