05000368/LER-1980-006-03, /03L-0:on 800123,during Mode 1 Operation,Core Protection Calculator B Failed,Generating DNBR & Linear Power Density Trips in Primary Power Sys.Cause Undetermined. Channel Restarted & Declared Operable

From kanterella
(Redirected from ML19296B362)
Jump to navigation Jump to search
/03L-0:on 800123,during Mode 1 Operation,Core Protection Calculator B Failed,Generating DNBR & Linear Power Density Trips in Primary Power Sys.Cause Undetermined. Channel Restarted & Declared Operable
ML19296B362
Person / Time
Site: Arkansas Nuclear Entergy icon.png
Issue date: 02/15/1980
From: Shively C
ARKANSAS POWER & LIGHT CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19296B355 List:
References
LER-80-006-03L, LER-80-6-3L, NUDOCS 8002200464
Download: ML19296B362 (1)


LER-1980-006, /03L-0:on 800123,during Mode 1 Operation,Core Protection Calculator B Failed,Generating DNBR & Linear Power Density Trips in Primary Power Sys.Cause Undetermined. Channel Restarted & Declared Operable
Event date:
Report date:
3681980006R03 - NRC Website

text

...

U. S. NUCLE AR REGULATORY COMMISSION NRC FORM 366 (7 77)

LICENSEE EVENT REPORT EXHIBIT A CONTROL BLOCK: l l l l l l lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION1 3

6 lotiliAjR A] Nj 0 l p lgl 010 l -l0 l 0 l 0l Oj 0 - l 0 l0 lg4 l1l1]ll1lgl l lg 7

a 9 LICENSEE CODE ta 15 UCENSE NUM6ER

?$

?6 tsCLNSE gyPL JG

$7 CAF $5 CON'T IOIii

",j', "C; LLJ@l0 i s p 10101316 I a l@l o 1 il 21 al si o l@l n I 21 11 sI 91 n l@

Ed 63 EVENT QATE 24 F5 NEPORT Q ATE 80 7

8 60 46 DOCKET NuM8 ER EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h IDuring Mncte 1 nnera ti nn rnre orgtection (31 c.,1 3t - (CPC)

"R" qiled, I

O 2

in "P"

PPR The trip in channel R PP$ ugre i 1 gongrating DNAD A I Pn trine o

3 10141 lbyoassed. clacing the Reactor trin logic in a 2 not nf 3 trin sanoonro in s IRomainino CPC channels werp verified nnprahlo This nrcorrence is similari l o 16 I I tn I FP'c En_164/An_nnd_ 70_nO9 and 70_nd5 I

I o > I Ronnrtable nor T R A 41 O h l

l o

n 83 C E LC E

$ BC E LOuPONENT COut

% i., t v

CDE lol91 1 II A 18 lfJ@ LfJ @ I I h IS l T l Rl U l@ Ly J@ LZ_J @

J n

9 10 in 12 13 is 19 Ju 5 E QU E N T' A t.

OC Lus s r *. cr r4E POH r a E vasioN

.EVENTYEAR RE POAT NO CD:2E 1*Pt p. O

@,"(u'E n s.O

_2,8101 L-J 10101 61 Ld, 10131 LLJ L, _]

!0_.]

1

=

n 23 2

a 2

r.

w 3

u Y A st E N A T ON ON P L A T WET O wOURS 5 5 i FOa VH su'*t E R WANt,a Tuptp LLJ@L.ZJ@ LLJ@

LZJO

.I 0101010 i LLJ@

LLJO Ltu@

IC 1419! 0@

33 34 Ja 36 al a0 el 42 43 as op pflCN AND CORREC(IVE ACTIONS h C AUSE DESCRi LThe CPC disolaved an"analoo inout fail function code" signifyina an off-I i

O tii,jinormal inout sianal.

Exact cause could not be determined. The Channel I

I"B" CPC was restarted and declared operable within 1/2 hour meeting the i

2 Iil31Ireauiromonts of T.S. Tahlo 1.3_1 Action Statomont e2a.

I lila l I i

OT ER status @ s'C'O$n v' OiscovEnv oExu,,riw @

's T'AiYs' s eOi E a O,

Laj@ l li n i nl@l NA I LAj@l NA l

s a

aC o

'.aivo. CO6T m v~10,AC1, var @ l

< OC A,,0, 0,,.E u u @

t u aSio 0, f a Asf l

NA j

fiTTl LZJ @ LZJ@l NA 7

8 9 10 II 44 45 80 FER50NNE L E XPC$sRE$

tsuMSEp TYPE C E SCRiPTION LLLU l0101 Ol@GJ@l NA l

so

,E 50~NE'J ;u'4Es QEsc.1,0 @

~uo.ER L'AJ 10 l 010 l@l NA l

7 8 9 11 12 80 LO55 08 OR O AwAGE To f acitiTV IvPE O E SC PIP TION [112J [Zj@l NA l

7 8 9 10 83 pus LICITY Nric USE ONLY ITITl LRJ@DESCR'* TION issufD l

NA 3 ; ; ;;;;;; ;;;;

'o ca

,,3

,o Chris N. Shively MU%b3M NAVE CF PREP AAER

, g g,i,

800220 0 N