ML20028G311

LER 83-001/03L-0:on 830102,RCS Subcooling Monitor Channel 2 Declared Inoperable Following Receipt of Main Control Board Alarms.Caused by Faulty Printed Circuit Card.Connector Pins on Card Cleaned

ML20028G311
Person / Time
Site:	Farley
Issue date:	01/28/1983
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20028G304	List: ML20028G303 ML20028G305 ML20028G309 ML20028G311
References
LER-83-001-03L, LER-83-1-3L, NUDOCS 8302070620
Download: ML20028G311 (1)

Text

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NRC FcRM 366 U. S. NUCLE AR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK: l I

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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) o i l A lL lJ lM lF [1_]@l 14 Ol 0l- l0 l0 LICENSE l0 l0 NUMBER l 0 l -l 010 26 {@l4 26 l1l1l1l1l@l LICENSE TYPE JO l

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7 8 9 LICENSEE CODE lb CON'T IoI1I 7, "d l L l@l0 l 5 10 10 l0 13 1468l 869l@l0EVENT 11DATE 10 l2 18 13 l@l0l1l2l8l8l3l@

74 76 HEPORT DATE 80 7 8 60 61 DOCKET NUMBEH EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h O 2 ht 0445 and 1545 on 1/2/83. Reactor Coolant System Subcoolina Monitor channel 2 I LO_13_J fias declared inoperable followina the receipt of main control board alarms. Tech. I O 4 i Spec. 3.3.3.8. in part, requires the RCS Subcoolina Monitor channel tO be operable. 1 0 5 l Tech. Spec. 3.3.3.8 action statement requirements were met. Health / safety of the j 1

lo_16 J Lpublic was not affected.

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l 0 8 l 80 7 8 9 DE CODE St BC E COMPONENT CODE SU8C dE S DE o 9 l I I 0 l@ [E j@ [G_j @ l I l N l S l T l R l U l@ [Y_J@ [Z,,j 20 7 8 9 to 11 12 13 18 19 SEQUENTI AL OCCUR RE NCE HLPORT REVISION EVENTYEAR HEPOHT NO, CODE TYPE N O.

L O a=ERIHO s  ; l813J L---l l0 10 11 I trJ l013I 28 29 It 30 I l-J 31 Loj 32

_ 21 22 23 24 26 27 TAKEN A 1ON ON PL NT T HOURS 22 SB lii O FO B. SUPPLIE F MAN F ACTUF eft W@W@ W@ [_Zj@

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[NJg [Njg 43 p! l1 l2l0lg 44 47 33 34 35 42 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h l1 l O 1 I These events were attributed to a faulty printed circuit card. The connector ains l Li_I_i J l on the card were cleaned and the RCS Subcooling Monitor channel 2 was returned to 1

, 2 I service at 1520 on 1/2/83. Following the second occurrence, the card was replaced I t i l a l l and upon satisfactory performance of FNP-1-STP-201.32A (Core Cooline Moni tor i i 4 1 Channel Check), RCS Subcooling fionitor Channel 2 was declared ooerable at 0007 on l So 7 8 9Ig83. OTHER ST A TUS ISC V HY DISCOVF RY DESCHIPTION Si tuS  % POWER

] R [_E_J@ l01917l@l NA l U @l Operational Event l ACilVITY CO TENT HF LE ASF D OF HE LE ASE AMOUNT OF ACTIVITY LOCAT'ON OF HE L E ASE i 6 [_Zj @ [Z_ j@l NA l [_ NA l 7 8 9 10 t1 44 45 80 PEHSONNEL f XPOSUHES NUMiif ft TYPE DE SCHtP TION li l il l ol o l 01@[Z_j@l A l

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NA l li Is 8l 9101010 l@l 7 11 12 80 iOSS Or OH DAMAGE TO FACILtiY flh 8302070620 830128 tvPt OtsCHiP TION U PDR ADOCK 05000349 i 9 LZj@l NA S PDR _] 80 7 8 9 10 e

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o W. G. Hairston, III PHONE-(205) 899-5156 ",

I NAME OF PitEPAnEn

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