ML19320A962

LER 80-014/03L-0:on 800518,while Performing Sp 6.3.13.1, Relay 14A-K2B Was Found de-energized,preventing Start of Core Spray Pump on Normal Power.Superflous Contacts Were Inadvertently Left Connected in Core Spray Pump Circuits

ML19320A962
Person / Time
Site:	Cooper
Issue date:	06/16/1980
From:	Bednar L NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19320A961	List: ML19320A960 ML19320A962
References
LER-80-014-03L, LER-80-14-3L, NUDOCS 8007080368
Download: ML19320A962 (1)

Text

_ _ _ _ _ _ _ _ _ _ _

NRd. FORM 356 U.S. NUCLEAR REGULATORY COMMISSION (7 776 LICENSEE EVENT REPORT -

P) s CONTROL 8tOCx:

1, I I I I I p (PLEASE PRINT oR TYPE ALL REQUIRED INFORMATION) f 0 Til 1 8 9 IN l ELICENSEE l C l CODE P l R l141 l@l 15 0 l 0 l- l0 LsCENSE l0 l 0NUM8ER l0l-l0l0lO 25 l@l4 26 l1LICENSE l1 11TYPE l 1JOl@l57 CAT l

$8 l@ I j

CON'T o 1 8

% "C l60 L ]@l0 15 DOCK 61 l0 l0 l0 l2 l 9 l688 l@b ET NUMBER 63 15 11 18 18 10 l@l0l6l1l6l8Iol@

EVENT DATE 74 75 REPORT DATE 80 l

EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h

[TTTl puring refueling shutdown while performing SP 6.3.13.1, relay 14A-K2B was found de- l

,n,3, pnergized which would not allow starting a core spray pump on normal power with DG l g o i 4 l ynd emergency power breakers racked out. This problem was caused by an extra contact l l o i s I p2b/EG2 connected in the #2 DG output breaker for Core Spray Pump 1B. Similar prob- I l o is 1 }em existed in the circ' !: for Core Spray Pump 1A. No significant occurrence took 1 (TT71 Place. This event had no effect upon public health and safety because the DG output I i O la i breaker and the emergency power breaker have never been racked out simultancously. I 7 8 9 80 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SU8 CODE COMPONENT CODE SUSCODE SUSCODE 7

o 9 8

Is ir l@ L3_J@ Lc_JO lx lx lx lx lx l x l@ Ld@ Lz l @

9 10 11 12 13 in 19 70

_ SE QUE N TI AL OCCURRENCE REPORT R EVISION LE R RO EVENT YE AR REPORT NO. CODE TYPE NO.

@ ,ajg 18 l01 1-1 2J l ol li 4l 1./l 27 lo 13 I 29

[L_j 30

[-j ((LJ 32

_ 21 22 24 26 28 31 T K N A 10 ON PL NT ET HOURS S8 IT PO s 8. SUPPL 1 MANUFACTUREh Lr_J@La_l@ L2_l@ Iz_J@ lo 10 lo 101 Luj@ l l@ Iz l@ Izi919191@

JJ Ju JS 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS g The superfluous contacts 52b/EG1 and 52b/EG2 were inadventently left connected in l Iiiil bore sorav numn circuits af ter these circtif ts were revised during infein1 cnneeruc- I LL11_j Lion because of inadeauate control of construction activicies. The contacts were dis-4 f7TT1 l nnnocena nna envroce nnorneinn nf volnya 1&A-Y7A nnd 1&A-Y?R una veri ff od . Te una l J

' d 8 9 Lcerw ed t"t ac ciril2r preh!er existe in " p" p circ"ite- 80 I

ST S *.POWE R OTHER STATUS IS Oy RY DISCOVERY DESCRIPTION i 5 (_H_j @ l 0 l 0 l 0l @ l NA l l B l@Dbservation during surveillance proc. l ACTivl TY CO TENT RELE ASED OF RELE ASE AMOUNT OF ACTIVITY LOCATION OF RELEASE lil6I [,,Zj h [Zj @ l 8 10 NA 44 l l 45 NA 80 l

8 'J it PE ASONNEL f XPOSURES NUV8E R TYPE DESCRIPTION Ii I 7* I' lo lo lo l@lzJ@l ni I

,E RSO~NE L i~;uWiES

~uMa E R o E SCn,PTiC~ @

t i ,

M 9 l0l0l0l@l 11 12 NA 80 l

1055 OF OH DAMAGE TO FACILITY TYPE DE SCittP DON i 9 (z_jhl NA l 1 M 't to 80

> " Lu imoj[r@l""' "2E siniP ni 80070803(p no~ @ i NscouoNn 11Illit!!!!!!!

i et 3 to 68 69 80 S NAVE OF PREPARER L. F. Bednar PHONE:

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