ML19317F784

From kanterella
Jump to navigation Jump to search
AO-75-02:on 750122,demineralized Water Added to Bwst to Increase Stored Water Quantity Revealed Flow Measuring Instrumentation Not Operating.Caused by Root Valves to Pressure Transmitter Valved Out of Svc.Insp Completed
ML19317F784
Person / Time
Site: Rancho Seco
Issue date: 01/30/1975
From: Colombo R
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:
Shared Package
ML19317F780 List:
References
NUDOCS 8002210550
Download: ML19317F784 (2)


Text

~

UCENSEE EVENT REPORT

. '.~

CONTROL - BLOCK.,

l l

l l

l l

(PLEASE PRINT ALL RtEUI".ED INFoRMATION)

't S

[Ok NAME UCENSE NUMSER TYPE TYPE.

UCENSEE LEENSE EVENT

,. (] l C l A l Rl Sl Sl 1l l 0l0 l-l 0 l 0 l 0l 0l 0l-l0 l 0 l l 4 l 1 l1 l1 l 1l l0l1l 7 89 14 15 25 26 30 31 32 ATECORY T%

hE CoCKET NuveER EVENT DATE REPORT DATE

- 01 CONT l P l 0 l W l Ll l0 l5 l0 l_l 0 l 3 l 1l 2l l 0l 1l 2 l 2 i, l ; l l 0l 1l 3l0 l7 l 5 l 74 75 80 7 8 57 58 59 60 61 68 69

. EVENT OESCRfPTION g l Demineralized water was added to the BWST to increase the stored water quantity. To l~

7 89 80 g l provide proper mixing of the boron and water the solutic. is circulated by the lg 7 89 80 ' '

[aji] l LPI (Decay Heat) system. During the circulation an operator noticed that the flow l

a 7 89 60 g l measuring instrumentation in the cross-tie between "A" and "3" LPI loops was not l,

7 89 80 -

gg l operating.

(AO-75-2).

I 7 89 80 mg sv5 TEM CAUSE CCM80NENT COMPONENT CODE CCCE COMPONENT CCCE suppl 1R MANUFACTUAER WXAToN

.;.l O

lSl Bl lAl

.lZ j Z j Zl Zl ZlZ l lZl l Z j 9l 9l 9l l Nl 7 89 10 11 12 17 43 44 47 48

- l l

CAUSE DESCRIPTION Q l The root valves to the pressure transmitter werevalved out of service. This was l

7 89 60 -

M l noted on the valve inspection November 7,1974 which required the valves to ba cpen.

l 7 89 80,

9] l The supervisor signed off the valve inspection procedure and did not take further acti4n.

FACE.ITY METHCO OF

'- /

STA'US

% POWER oTHER STATUS OrSCOVERY D.YCDva.tY DESCR:PTON lEl l 0l 7l5 l l NA l @

l NA l

1 7

8-9 10 12 13 44 45 46 80 ACTMTV CCNTENT RELEASED OF AELEASE l AMOUNT OF ACTMTY LOCATON OF RELEASE W

NA l

l l

E lZ l NA 7 8 9

. 10 11 44 45 SQ PERSONNEL EXPOSURES NUMBER TYPE CESCASTCN BE l 0 ! 0l 0 l lZl l NA l

7 89 11 12 13 80 ~

~

PERSONNEL INJURIEF, NUMBER.

OESCRIPTioN 3G l0l0l 0l l NA l

7 89 11 12 80 OFFSITE CONSEQUENCES f__

1 3E I NA I~

7 89 80 LOSS OR OAMAGE TO FAC:UTY

[,

I TYPE CESCR* TON

~i

~

M W l NA l,i l

7 89 10 80

. PG::'_DTY n

Qg l Sacra.' ento Bee and Union notified January 24, 1975 ld 8002 210$O "4

ADDITIONAL FACTORS C'l l i.

l' ~.D 8 9 80 ~

DE I l_

l 7 89 80 -.

R. W. Colombo (916) 452-3211

~ --

NAME:

PHONE:

GFo ses.esi a.

,