ML19254F286

LER 79-058/03L-0:on 791004,component Cooling Heat Exchanger 11 Removed from Svc for Corrective Maint on Operator for Heat Exchanger Salt Water Outlet Valve 1-CV-5206.Valve Would Not Open Due to Faulty Pneumatic Converter.Adjustments Made

ML19254F286
Person / Time
Site:	Calvert Cliffs
Issue date:	11/02/1979
From:	Heibel R, Rizzo P BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19254F283	List: ML19254F282 ML19254F286
References
LER-79-058-03L, LER-79-58-3L, NUDOCS 7911070472
Download: ML19254F286 (1)

Text

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s.77; '

. tr. - LICENSEE EVENT REPORT CONTROL BLOCK: l l l l 1 l l (PLEASE NT OR TYPE ALL REQUIRED INFORMATION)

'

• x) o i 01025@'426 Il 11 11 1 @l57 I S 914 10 JCCODE lC IN 11 @l5 01 0 LICENSE -l010NLYSER OlOlOl- LICE %SE TY PE JO GT 58

< LICENSEE 14 1 s

CON'T o tj 8

M"c' lL 60 l@l0 15 l0 10 10 13 11 1769 l@l 1 l O l'0 l a l 7191@l 61 COCK ET NuYS E A 0a EV E*' T D ATE 74 75 AEPOAT O11110121719 ATE 80 l@

EFENT OESCRIPTION AND PROBABLE CONSEQUENCES'h i

o  :! L t A1100 on October 4, 1979, #11 Component Coolina Heat Excharir was o a I removed from service to perfom corrective maintenance on the operator i o , lfor the Heat Exchancer Saltwater outlet valve (1-CV-5206). The problem I o 3 i with the operator was corrected and the Heat Exchanger was returned [

o e i to operation at 1455, October 4,1979. (T. S. 3.7.3.1). This is not 1 Ol7 la repetitive occurrence.

I Lo e i 7 8 9

,E CO E SL8C E COVPONENT C00E SLBC CE S E 7

o 9 8

IwlBl@ lXl@ lXl@ IIlN 9 10 11 12 13 S l T l R J U l@

18 13 Cl@ LZ_l 20 AEVISION

_ SEOUENTI AL OCCURAENCE REPCAT EVENT YEAR REPORT NO. CODE TYPE NO.

LER RO O A3gy 1719 l l-l LO 1518'l l/l 10 13 I ll l l- 10 l 23 24 26 27 28 29 30 31 32 21 22 ON PL NT YET HOURS S B i FOA 8. SU PP LI E MAN FACTURER T C O IEl@lZi@

33 34 LZ_J@

35 IZI@

36 37 01010101 40

.lN l@

41 lY 42 l@ 43 Al@ 44 F l1 131047l@

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i O l Valve 1-CV-5206 would not open until a 20% open electrical signal was i

, , i generated from its controller. This was due to its faulty current to

, , i pneumatic converter. The converter was recalibrated and valve position i

, 3

switches were adjusted. The valve had been operational from a safety l

, , i outside standpoint. No preventive action is deemed necessary.  ;

MS' S .POoEn OrwEn STATUS @ '6'iSEOM av' DiSCOvEnv cESCaiPriON @

i s lE l@ l 0 l 8 l 5 jfs) N/A l A l@l Operator Observation l ACTIVITY CO TENT alELEASED OF AELEASE .WOUNT OF ACTIVITY LLC ATION OF RELEASE N/A l 1 6 lZ l @ LZ_j@ N/A l l PERSONNEL EXPOS ES NUv8Ea TYeE =ESCamTiON@

l 1 7 101010l@lZl@l N/A 8

PEaSONNe' Amu % ES NuvaEa OESCamTiO~8 ) 9 n 2 2 (3 0 l 7

i e A 9 l0 l010 l@l N/A 11 12 80 7

, 2 8 9 LOSS OF OR OAM AGE TO FACILITY lY'lgl "$fI to 7 all070 Mh1 90 2 o ISSU lZ Ef@

l N/A DESCRIPTION i lllllill Illl5 10 68 69 80 5 7 8 9 NAME OF PREPARER R. Heibel/P. Rizzo pgoyg;(301)234-7943/7986