ML19253B063

LER 79-032/03L-0:on 790806,12 Charging Pumps Placed Out of Svc Due to Low Suction Pressure.Caused by Faulty Pressure Indicating Switch 1-PC-224Y.Internal Parts of Switch Replaced & Pump Returned to Svc

ML19253B063
Person / Time
Site:	Calvert Cliffs
Issue date:	08/31/1979
From:	Heibel R, Rizzo P BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19253B062	List: ML19253B061 ML19253B063
References
LER-79-032-03L, LER-79-32-3L, NUDOCS 7909140444
Download: ML19253B063 (1)

Text

NRC F ORM 366 U. b. NUL.L t AH h WULA10H Y COMMintuN (7 ??)

, LICENSEE EVENT REPORT l

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lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 7 0 1 8 9 lMlDIClClNl1l@l0l0l-l0l0l0 LICENSEE CODE 14 15 LICENSE NUV8ER 0 I O l - l 010 25l@l264 l 1LICENSE l 1 11 l 1 l@l57 CAT TVPE JO l

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5ouRC lLl@l0 60 61 5101010131117l@l01810161719l@l'0181311 DOCKET NUMBER tid 69 EVENT DATE 74 75 REPORT DATE 7 9l@ 80 EVENT DESCRIPTION AND PROSABLE CONSEQUENCES h o 2 l At 0945.12 charoinn nirn was niaced nur nf service because.of nump trios due to l la 3 I low suction pressure and unsuccessful attempts to restart the puros and maintain l lo !. I it in operation. Placina this oumo out of service reduced the number of ooerable 1

[o s I chargino cumps to one (as number 11 charoino cumo was isolated because of a packing i o s Ileak). #11 charcina pumo was reoaired and olaced back into service at 1530 on 8/6/79,1 0 7 l briGCin0 the number of ODerable Dumos to two as reOuired bV I.S.3.1.2.4. #13 I o a l charging pumo remained operable durino event. This is not a recetitive occurrence. I 7 8 9 80 C DE CO E SLBCO E COMPONENT CODE SL B CO C'E S E 7

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_ 28 29 30 31 32 TA N A T ON ON PLANT M T HOUPS 22 S B .T FOR B. S DLIER MANUFAC URER LAJ@Lzjg 33 a4 iz lg iz ig Jb 36 37 0 0 0l 40 i i Njg i Nig iA ;g l Al 5l 0l 1lg 41 42 44 47 43 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h iie l112 chargine pumo low suction oressure trios were cause by a faulty pressure l

, i in'dicatino switch: 1-PC-224Y. This Ashcroft nodel 1379 TAXEF was recaired by I

, , replacement of gauge internals which were worn. This is being considered as an [

, 3 l isolated failure and no further corrective action is to be taken. I i 4 I I 7 8 9 80 STA 5  % POWER OTHE R STATUS ISCOV RY DISCOVERY OESCRIPTION s W @ l0 18 l7 lg l NA l l A lgl Operator Observation l

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