ML20024A888

LER 83-032/03L-0:on 830523,containment Isolation Sys B Logic Module Would Not Actuate.Caused by Defective Vitro Labs Std Logic Module.Module Replaced.Failed Module Returned to Vitro Labs for Repair & testing.W/830616 Ltr

ML20024A888
Person / Time
Site:	Calvert Cliffs
Issue date:	06/16/1983
From:	Basso L, Junge M, Russell L BALTIMORE GAS & ELECTRIC CO.
To:	Allan J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
LER-83-032-03L, LER-83-32-3L, NUDOCS 8307010142
Download: ML20024A888 (2)

Text

_. - _.

NRC FORM 366 U.S. NUCLE #.R REGULATORY COMMISSluN (7 Mi

• tr -

LICENSEE EVENT REPORT CONTROL DLOCK: l 1

l l l l l 6

lh (PLE ASE PRINT OR TYPE ALL REQUIRED INFORMATION) l 0 l8 i9l l Ml 7 D l CODE LICENSEE C l C l N l 1 l@ISl0l0l-lO!0l0l0l0l-l0l0l@l4l1l1l1l1l@l 14 LICENSE NUMULH 2b 26 LICENSE TYPE JQ l

t ' C A T b8 l@

CONT I

o i

. 8 Sf s I 60Ll@l 610l 5101010131 DOCK ET NUVBER i l 71@l 68 01 63 s lEVENT 213DATE l 8131@l o l 61174 7b l 61 a l 31@

NPORT DATE 80 EVENT DESCRIPTION AND # ROB ABLE CONSEQUENCES h Io i2l l At 0250 durina performance of surveillance tests, the CIS "B" logic mod- l gaj l ule would not actuate. It was determined tL;t the logic module was de- l o 4 l fcctive. The module was replaced, tested and ESFAS was returned to ser- l

) O 5 vice at 1345. The redundant ESFAS remained operable throughout the 1 l

0 6 l event. I l o 171 1 Similar events: none. I 10181I l 7 8 9 80 DE CODE S BC E COMPONENT CODE SUSCODE SU E O 9 lS l Dlh (_Ejh (,Gj h l I l N l S lT l R l U lh (_yjh (_Zj h 10 7 8 9 11 12 13 18 19 20 SE QUE N TI AL OCCURRENCE REPORT REVISION LER RO EVENT YE AR HEPORT NO. CODE TYPE NO.

O sag; 18l31

, 21 22 l-l 23 1013121 24 26 LcJ 27 1 01 31 28 29 l_tJ 30 1--J 31 LOJ 32 KEN AC O ON L NT MET HOURS SB IT FOR B. SUPPLIE MANUF CTURER

(_g,j@[XJ@

JJ 34 l357. l@ d h M

l0l0l0l0l 31 40 (N_J 41

@ J@ W@

42 43 lV 44 l1 l3 l247l@

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h MI Troubleshooting found a Vitro Labs standard logic module (N-04341.26023. I I 1 l VL-C-23923) defective. The module was reolaced with a soare. The failed I 1 ? I module was returned to Vitro for repair and testing for root cause fail- l l t 13 l l ure analysis. An update report will be submitted when more information I i 4 I is known. I 7 8 9 80 A S  % POWE R OTHER STATUS DIS RY DISCOVERY DESCRIPTION t 5 (_fjh l1l0l0lhl N/A l l_C_j@l Surveillance Tests l ACTIVITY CO TENT RELE ASED OF RE LEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE 1 6

[_JJ h d @ l N/A l l N/A l 7 8 9 10 11 44 46 80 PERSONNEL E XPOSURES NUMBE R DESCRIPTION 1 7 l0l0l0lh(TYPEZ.jhl N/A l PERSONNE L INJU IES NUMain OtSCniPTiONh 8307010142 830616 7

1 H 8 9 l0l0l0lhl 11 12 N/A PDR ADOCK 05000 O 80 l

Loss OF OR DAMAGE TO FAC6LITY TYPE DESCRIPTION i 9 Lg.j@l N/A l 7 8 9 10 80 iS l 2 l ol l, SUE 3,Jhl DESCRIPTION pd71

• N/A l llllllllllIIl5 7 R S 10 68 69 80 5 M. A. Junge/L. F. Basso PHONE: 301-269-4969/ae11

-~

NAME OF PREPARER

. - ~ _ . , __ .- -

{_

~

W-~ o B ALTIMORE G AS AND ELECTRIC COMPANY P.O. B O X 14 7 5 B A LTI M O R E. M A R Y L A N D 21203 HUCLEAR power DEPARTMENT ccLVERT CLIFFS NUCLEAN power PL AN T LU$sy, MARYLAND 20657 June 16, 1983 Mr. James M. Allan Docket No. 50-317 Acting Regional Administrator License No. DPR 53 U. S. Nuclear Regulatory Commission Region 1 631 Park Avenue King of Prussia, PA 19406

Dear Mr. Allan:

In accordance with the Technical Specification 6.9 please find the attached thirty day report for LER 83-32/3L.

Should you have any questions regarding this report, we would be pleased to discuss them with you.

Very truly yours.

W L. B. Russell Plant Superintendent LBR:LF3:bsb cc: Director, Office of Management Information and Program Control Messrs: A. E. Lundvall, Jr.

J. A. Tiernan 9

64 st

//