05000322/LER-1986-008, :on 860214,during Surveillance Procedure,Split of Reactor Bldg Closed Loop Cooling Water (RBCLCW) Sys Occurred.Caused by Technician Accidentally Bumping RBCLCW Head Tank B lo-lo Level Switch.Procedure Revised

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:on 860214,during Surveillance Procedure,Split of Reactor Bldg Closed Loop Cooling Water (RBCLCW) Sys Occurred.Caused by Technician Accidentally Bumping RBCLCW Head Tank B lo-lo Level Switch.Procedure Revised
ML20141N949
Person / Time
Site: Shoreham File:Long Island Lighting Company icon.png
Issue date: 03/14/1986
From: Grunseich R
LONG ISLAND LIGHTING CO.
To:
Shared Package
ML20141N947 List:
References
LER-86-008, LER-86-8, NUDOCS 8603180332
Download: ML20141N949 (2)
v • d • e


LER-1986-008, on 860214,during Surveillance Procedure,Split of Reactor Bldg Closed Loop Cooling Water (RBCLCW) Sys Occurred.Caused by Technician Accidentally Bumping RBCLCW Head Tank B lo-lo Level Switch.Procedure Revised
Event date:
Report date:
3221986008R00 - NRC Website
v • d • e

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UCENSEE EVENT REPORT ILERI

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Shoreham Nuclear Power Station 11 nit #1 e is I o to I o 131212 1 lopl012 YI,,, t.,

r RBCLCV Split While I&C Technician was Performing a Surveillance

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On

% n e n.w r y 14, l' JOE, c.t 1320, a Heactor Lui1 ding C l o s tnj t.<.o n l

Coolifa Wateze (9DCLCW) Setten 901it occut me whon an t r e, t r* um a n t ond Controls (JAC) toc 5ntelen accident 1" tumped the "fi' Rfh CW Head Tans l oue low Invel witch whilo imttanc uo to t r r f o,*m a

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nuevun11anro o r o n t'd u r e.

The alant w m. 'n G a s.ra t l ona l C r. vi l t t o n G with tbn foodo switch 11 Siutde+wn for nr> o u t e e>

ar all roo%

ir6 urtird in the core.

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6. or 5 n t e t o ri, by pr,sc ed o -e.

wJ r e r.1 0 v o a j

the wi t ch co ver fer the low 1 0,,

Icvel ureitch (tPaa*W 2iED) wd,

becauw o f lim 2ted accermtbility. i ncal ve n t ant l y Dun,ued t t,E r.w i t : n l

c a u '; t. o kho 9DCLCW u n t ura to sollt a rit o its n ec' tit r.t configuroti0n.

The n ur vt< i;ance war. utnoped until the 2 r t itJt. n t, was t rivr 7 t i p a t er.'

avoj tite riyid mri wain r e t ie r r e'd to Itu nur,131 i

confagneative.

pl 'nt v m e n en~ n t w a r, not2tned of the 1.w n t a ra thn NRC w.m retified ct 147) r. rm 10C'R5 0. 7.7.

4 orevent P l?t ' t, r' r f !riC,3, the u d evie ) ] 1,, fir t, fe r Q C,3 'j u r fd WA% r,* V i b e d tO pr OV1ds' re rot e rm t t o r>

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LICENSEE EVENT REPORT (LER) TEXT CON 71NUAT60N

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i Shoreha Nucleeir Power Station t' nit #1,o alolo16l3l2l 2' g{s 0 l0 (9 0 l 0, 012 o' 0l2 61,.

am... m On Fe tn"in r y 14 1%C at ID.

a Reactor Ih t i. ; int C2 of ec

!.c o p Cem]in:

Wter ( 9E CL Cel) Lysttw 301it occ. a ^ red wher. an I r u t rurrent a.M Contro1n (IdC) technician w c u.t'r.t l y L:uo v-d the " 1/ '

RDCLCW Wend look lew Icw lovel switch wh i lt- :ettinr up to corporm a

surveilltr.ce procodure.

The plant wa; i n Oswrat tor ei Co ^t' i t t o n ",

with the modo uwitch in Shutdun for an o ' r: a w and oli rudo i rc.or t ed in the cor9 The I E ": t rechn 2 ca n n w n.

t>etting ein the r.ecimsary

m. t r u m e n t.i t t a n to p e r f o rr,1 Otat1on proceduru 4 4.1 ' G. 01, RECL C.J F-r:ati Tank unvv 4 L c.*

Low Chor nei Cal 2bratien and Fur.c t t e n a l

Teat, to nat m'v 7eich n i c a l Lpecificetco reci. come r.t r.

Mt rw

.,t t a c h t r a

Tyton Tubirm tett wt up to t t- +. rJ i 'a i n o > p ed f sr t. F o level

.WitCS (1D4f2.LW 1 N,

t h a-W u dure then celion fc r r o M ov ; n t' the cove r from th* Unitch.

Than ii vm w i t e), is l oc x; c ti m e j y;e r,t t'

tv f

"B" R E "'L C W haad inr+,

a p tn y : ta a t e l y ter tv feet ame tne f l o.v.

In schj a t i c n tc t o ; r rj nut. f-ro. e rii T I

reach, ccin.utt r u n r.

ric ruonurt2 havoor a.ce": stb 1: 2ty to the invol twitch.

Wnon the sulten

  • c ur wa. tw i r. r e
    r o v ed,

the switch wu 91the-terreJ ce Lontacted d rect:y by tan cu er.

re%1 ting i t, the 5f'CLCW "O"

,tde 1 ".o l a t t o n.

tno M"LCR ryi:em nolit intc two tecar at e and i nd e or2 nd e M Ic < su by cat enat ically closint the honder c r o w-connett valvos ori *!n vtrtion

.m d tiucnarge headert of the FDCL~W Heat Fatbangorn and c a n n t.

n t h e "4"

side.

The carve 111anen was ttoonci until inve2",tip tjen of a r.c a tNnt wac completen.

The uyttem was t h t.en re' tar ned "o its nwnal con f i c. ira t l er:.

There was no

<.a f e t y s a a n. r '. wc re t<

tr e event.

%o FDCLCel svnt ern

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operated a,

d o n t [ r,r. d.

C; 9 ext om carried c.u t all roautrec actiorm.

No 2CC

. g t i, v~

w f ra thhllef>ted or roquared

  • cr the evnnt.

Plant N'a n nsrrst n t was nottfir'c of the o v ey n t and the NRC wan not1 Ptod at 1LCS ov 12CF fM. 72.

To orovent r ec u rror.co. TO 04.I111.01 hat o& en evited to uta11::e P r o r.h Pecorder io prov drs r r W> t U Canit.on ind2:ctton of tha level o

cwitchnn without havir; to re"Ovo the lim n i r.r.tch covnru.

In arid i t t e n.

o report cov e; 5 2 % tho i r,c, i d en t wil! Lttove recuired t

rearJing for all I6C t Echni c 2 *r.a, f orerr e n aw mw vvinort.

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