05000313/LER-1978-025-03, /03L-0:on 780917,control Rod Index Reached Restricted Zone W/Worst Case Condition at 171% Withdrawn at 90% Power.Caused by Miscalculated Boron Addition to Rcs. Acceptable Rod Positions Obtained within 2 H

/03L-0:on 780917,control Rod Index Reached Restricted Zone W/Worst Case Condition at 171% Withdrawn at 90% Power.Caused by Miscalculated Boron Addition to Rcs. Acceptable Rod Positions Obtained within 2 H

ML20148E259
Person / Time
Site:	Arkansas Nuclear
Issue date:	10/13/1978
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20148E242	List: 05000313/LER-1978-025-03, /03L-0:on 780917,control Rod Index Reached Restricted Zone W/Worst Case Condition at 171% Withdrawn at 90% Power.Caused by Miscalculated Boron Addition to Rcs. Acceptable Rod Positions Obtained within 2 H 05000313/LER-1978-026-03, /03L-0:on 780926,normal Borated Water Storage Tank Chemical Sample Showed Boron Concentration Below Tech Spec Limits.Cause Not Given.Concentration Raised to Tech Spec Requirements 05000313/LER-1978-027-03, /03L-0:on 780926,condensate Storage Tank Level Dropped Below Min Tech Spec Level.Caused by Abnormally High Condensate Demand Due to Simultaneous Rinsing of Polisher & Makeup Plant Plus Makeup to Hotwell ML20148E238
References
LER-78-025-03L-01, LER-78-25-3L-1, NUDOCS 7811060180
Download: ML20148E259 (1)

LER-1978-025, /03L-0:on 780917,control Rod Index Reached Restricted Zone W/Worst Case Condition at 171% Withdrawn at 90% Power.Caused by Miscalculated Boron Addition to Rcs. Acceptable Rod Positions Obtained within 2 H

Event date:
Report date:
3131978025R03 - NRC Website

text

.. _,,

e t

N RC F ORM 366 (1 71)

U, C. NUCLE AR HEGULATORY COMMISSION

'SEE EVENT REPORT EXHlBIT A i

CONTROL ULOCF.

jl] l (PLEASE PFUNT OR TYPE ALL REQUlFif D INFORMATION)

Fm] ULLR I A in lo i i l@%lo lo l-to walojo 1 - Inloj@41 i I t It li J@

lJ C A I teH @

l B 9 LK.t NSE E (')DL I4 t'

Nat NUM6k N 282 26 L 6C E N$ t [ypt JO bl CON' T lolil

%,"! LL J@l o t s lo lo lo_131 ) 11G! Ol gli 1111181@l l 101 113111 d'l@

I O

43 61 OOC.F E T N;JMSt H Cd 69 IVEN T DATE 14 73 HkPOR T D A TE N

EVENT DESCRIPTION AND PROS ABLE CONSEQUI NCES h j

EE lbY nj hD'V1CC 21.kdMikh,WIdh [CMitrL.neM NS p_Cbd h4tym f

EE lihdMN _.

bft/ft_Abi n.19b. NOM __LAl2LL_nY4sdf.BlRktbb '5 fC1MNed IoI4I((y\\

(.,y_Dbnke,p b kUAdy1_qb

_ggge,_

], S. b ' g y'c.

i nosi tLSaasAA cnw Ah_e en Otawa ak eo%

8 OE LpOAM.

C Nn M 09.Qtb.[% f0k nk,CN___L% @D Ye.id d(._Adh.J

^

14_ ht.co._fp__Styn'thM nccaff.Mu.cn Wl M

I 1018i L_

8 9 I

DE C) L

$ E COMPONE N T CODE gu3 r

3

,E i

iolol IRIBl@ L,h, j@ L1LE@ [ElEIEIElg.Lgj@ L.2j@ L,gj @

u o

)

5F OUE,N TI AL

@."t f R RO

,f VENT YE AR OCCURRfNCl pfPO4i A C VIMON HL PDF 7 NO CODF T'E NO.

2",;

L1 toI L-J LOJ&LEJ LtJ lo131 L,J Lo_J 2s n

n 24 a

21 n

n u

2_

n T af Cti ON PL AN T 1

e o woVHS S

1 5 6 5

iR MAN F Tur E N IEJ@Llij@

lij@

la.JO Iofof Iol L!ij@

id)@b l2J@

IE'l 9I9191@

"l 13 J4 h

Jai 3/

40 4!

. AUSE DGCHip HON AND CORHEC MVE AC TIONS j

rn7) LA cc.$able amb<oi rol pod 2As saavedAn.Ac)ta%1A i

r i i n LAbunimxnel_pe A chA stubm%E 4 T. c. 3.s 2.sa, i

Ii I /I l I

E I.1j l I

" $=

Ii b i LFJ@ L919I ol@ id Arens,Ams @

0n33 s,oo,n osca. - w,<,n oON

! lbJ@t id A i

i u,,,,

a,,

s m

e wouN,0, Acnv,1v @ I mAnON m au u @

inteto u m u m r>Ta LIJ @ [2Jel. n i

m I

" '..mNat,,,csas

=

nt sann,m @

Num n nec ELD 101o I ol@lIJ@l u

I

' ' " " n osoNd',~m',L s t,.uSJ l o l oJ oJ,,@loe stm.nnN @%

a NuMoi n i

o e o

tnt r$gN,r$

FFTD. 4Zj@l wL L

i

.e g y, U t tar,$' 9 ga NAMf OF. PHE PAH( H.

5 PHC;NC _ b 5 DS

• bb s

i 7m 1C6 otSS A.

s

+

,~.

4 c...

...., _. _,... ~..

- m