ML19031B562

LER 1977-041-01 for Salem Nuclear Generating Station, Unit 1, Unit Tripped Out of Service on 06/04/1977 Due to No. 14 Reactor Coolant Pump Low Flow Reactor Trip

ML19031B562
Person / Time
Site:	Salem
Issue date:	06/06/1977
From:	Heller H Public Service Electric & Gas Co
To:	O'Reilly J NRC/IE, NRC Region 1
References
LER 1977-041-01
Download: ML19031B562 (1)

Text

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)77 C...£.N""M1t L Fl Lfj c\;~~~~-: 'S~~*i.-~oa*Et-ecr,-:,.r: a~~ G!-; Cc~c*~"V

• SEl"P.~*(~e~*E=~a~t!"g*Sta~c,:?  ? 0. 8~'1 #*~3 r-'3~~:::-::~.~ e~~;e. ~iS\P+i J~.~)* C'.9L1:!9 June 6,. 1977 Mr- .r.arr-~s P. o' Reilly Director of USNRC Office of Inspectiona and Enforcements

~egion 1 631 Park Av-anue King of Prussia,. .Pennsylvania 1940~

De.ar Sir:

RE.?ORTA.2\LE OCCGRRENC£ 7i-41/0l?

SA.LE..."1 !'40. l L"1'UT !.ER This l~t.ter :serv-es to c.onfirm ou~ telephone report of June 4,. 1977 a<lvi$.ing of. a r~port.:abl~ occu.rr-ence iri accordance *...-i t...."1 T-echnical Specifications Section 6.9.l.

On Jt;;.ne 4, 1977 at 105.3 ho1.rcs, *No.,.* l Un.it tripped out of service due to No~ 14 Reactor Coolant. P~mp Low Flow Re;;i-ctor Trip. Inves-ti.ga.-ti-ori r~"real~d a ~o .. 14 *Reactor Coolant Pump ~!otor cab.le fail~re in the containment.. It ap.pears that simult:.aneou$l;;1* wit.h t..~e cable*

fai.lu:::-~ and adjacen-t to it, a leak occu:r.red in t.h.e comrr--0l4 seal water .return line .from the fo1.u: r~ac~or coolant pu,~ps. No. i..;

. R.::acto.r Coolant P~T-P is supplied from No. lG-4kV 'Group Bus_

Prior to the abov-e. occurrence~ at 1.1344 hours0.0156 days <br />0.373 hours <br />0.00222 weeks <br />5.11392e-4 months <br />, th~ lE and lEP Tr:ans-fo~~u:--s. ~*~v-/.4g1}v *Ht:V ACS tri?ped.. This Aca* _suppl i~s the lE-4~-0V Eh.}S and the Presstn:izer Heaters Backup Group 2 fror.i ?.fo .. lE-4k1l G;;:-oup Bus. l~fte~ i:n~.r~*sti*~at.ion of th~ eq-uiprr1ent loads by op~:.*ators,,

t.h~ A<;B w.;>is reelosed. L~s:s than a minute elapsed be.fore the cccu.r-ien~~ ~~$C~ibBd in the above paragraph~

Coc-ltlown o:f th:e plant t.o ~!ode 5 l" Cold Shutdown, was ini t.iated.. ~1od~

5 wws *:.mt"3*red at 0236 hours0.00273 days <br />0.0656 hours <br />3.902116e-4 weeks <br />8.9798e-5 months <br /> on June 5,, 19i7 *

.A d~~ctailed repcrtabl-e occurr\?.m::::e .reportwi.ll be submitt.*'2'd in the t.i.:r:e pe:::icQ specified by Technica1 Speeifi,r=ations.

Vary truly yours~

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