ML17252A860

Letter Regarding a 05/19/1973 Occurrence at the Unit No. 2 Reactor Where the Safety Injection Pump No. 23 Was Shutdown After an Investigation Revealed That a Motor-Operated Valve Was Closed and Resulted in the Pump Losing Suction - Indian P

ML17252A860
Person / Time
Site:	Indian Point
Issue date:	05/21/1973
From:	Caldwell W Con Edison, Consolidated Edison Co of New York
To:	O'Reilly J US Atomic Energy Commission (AEC)
References
Download: ML17252A860 (2)

Text

RE JtlLATORY OPERATIONS REGION 1 US ATOMIC Ef\IERGY COMM 970 BRO All ST .

NEWARK REPT NEWARK NJ_ 0-7102. .-

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RE.:1: INDIAN PO:INT UNIT NO ;2..

. FAC:IlITV. OPERATING: tiCENsE* OPR.-~

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ti.IT.Ft THE UNlT. NQ, 2: REACTOR IN. A SHUTDOWN CONOlTION, ANO;. THE~,**

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,- REAClOR COO.LANT SYSTEM PRE~SURt ANQ TEMP.ERATQRE .A-Tr 4*~ p5*t:G"*-

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AND 225; F ,_ RESPECTIVELY, ... >.

. NO: 23-* HlGH HEAD SAFETY. INJECTION PUMP WAS STARTED,, INORDER .. TO -~-~ - *.* *. -....i:-* .*

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ADD WATER TO: THE SIS ACCUMULATORS'"'.9

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• WlTH!"r A FEW* ffINUTES AFTER STARTING. THE- PUMP -- .

,.-r~ . AND AFTER fiRsr* OBSERVING: NORMAL PUMP.ING CHARACTERISt.rcs:,. rr*w;AS .. . . <-G

. ,.* ,, . ** NOTED TAA't' ACCUMULATOR: LE.VEL "1AS. MO; CRANGlNG,,_ ANEl THAT THE PUMP :.. * .,. _ ,..

.*: y . . . DISCHARGE- . PRE.SSURE. ~An. OECREAS"ED:. TO. THAJ"" E~ !STING:. IN: *ntE REAC'tOR" . ; . *.* c" ~~.;.

.*~~ ':\ '"*, coou~rr SYS:TEM ... s:Af"ETY-- IN...iECTTON PUMP- ~o~,;-~ .WAS:~THEREUPON: SHUT eaw~\--:_~-~ __:

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.io" ,<~< lNVES:TJGA.TlON RE'lEA.LEEl Tt;tAi:- A MOT_OR' :(J.P,~~,A~~'. VA~V-~ . .,... !'{0::7 \.~~1.Q~:t--.'.:* :..-*-~."-- :<::i?-"'*=~;

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~~-~~~'.~- ~N'_ T~~* ;.~?MM0,"1 ~~UC.TI(lN. _~,~-~~~R:0~~-~~~1~~~~;7.¥~~~!~9+~~T~~~~~~rgff~~~~~f~ffl~~~:i*

~--~;;i: _.* .... -.tANK. t~_-n£- ~IS PU~~.* WAS' ~~~$..~f}.;~l~-~f.'.~~:r!f~~i~~§.t!ji~~~IN.~ ~~~\:;.-£/¥.:1*~~~~-:;;. ~;

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THE MOTOR--OPERATED VALVE. WAS Opt;JEO AND A RE:START . OF TH£' Ptl~-,,~AS ..  : :** . .C>. ;

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• ATTEMPTED WITHOUT succrss- *. * * . * * ****.et* ~-

• APPARENTLY,. THE PUMP SEIZED AS A RESULT OF HAVIl\fG BE"FN .** .

OPERATED WITHOUT A SOURCE OF \TATER. SAFETY INJECT'l"ON* PU~ N"CJ 23 .2AS.

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REPLACED WlTA A SPARE AND, AFTER HAVING.. BEE N S.ATfSFA.CTOEtl,"L't WAS: RETURNED TO. SERVICE ON MAY. 21 1 19~-* * .:>:

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tES,,t£:0i *[

.* l AN l"!VES:T1GAtlON AS TO THE' qAUS:E OF" NO 2; SAFETY- lNJEqTI~* -...*

PUMP. BETNG'. OPERATED WlTH~AN IMPROPER VALVt LI~OP .rs::PRESENT(Y' -~>

• I BETNG CONDUCTED *. AT THI~ POINT IN . TIME*, IT APPE.ARS:. : <J ;:< ~ ,... : -<_;; > **.

KEY-'~- 0.l?ERATfoNS:**. *** . . .. _~ , * . * :.

1. 0 Tt+AT A MAJOR .CON-lR.IBUTING'. FACToR IS:* THAT s*EVER AL 1 1

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• PERs-oNNEL._ ASsiJMEo THAr Mov ig10.. wAs *.IN t-Ts:* NORMA'1E.eosrriaN~--*- ** ---:/~: * -~ > **

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• 1 E . OPEN~ AND OEENERG*IZE01 ANO DID NOT ACTUALLY OBTAN VER'IFlCAirO~i*. . . ~*::

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11 or: rrs. s:rktus. PRlaa: To STARTING ;THE PUMP. A REPORT *~o ~= ., :,_~~>~~: . ~z..t,. -~--- ~ *:~

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THE *--~--~-~_, . '._* " "*- *>; *.*. :,*.> *;. .,* .* :_;r_ .~J~-'{:~_,;_~~~:I::_:~;-~<.*~,:-::.::*;_ . *.*

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RESULTS OF' THIS_ INVESTIGATIO,J , ANO ANY MEASUR0ES: TAKEN .TO~ . :~ : ' *:: .*' *...***

p:RE.V.EN'T. RECURRENCE,. \TltL BE PRO.VIDEO WITHIN TE.N' (10J *DAYS:~ AS: REQ.trf

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. RID . BY' THE FACILITY LICENSE". ** * * * :* _

MR ELDON: BRUNNER OF v*ouR~ OrF'lCE WAS. NOTif IED. OF TRIS ~~ .

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INC-IOENT BY- MR JOHN MAKEPEACE' 1 . CHIEF ENGINEEB:I> U-Ntr* NO,. 2,_- . --; *.-' *~*.

BY TFlEPHONE-" ON MAY 19, .1-97~

• IN ADDIT'ION, ANO I.N: ACCQR'O-ANCE" WITH; ....

THE*

TECHN*tCAL . SPECTf'ICAT!ON* 6.2, .* THE CHAIRM"AN. OF OUR NUClEAR .* ... , .* .. .,_ ... ,

. *.*.' ' .. FAC-lLlTITE~s; ' S'AFETY COMMITTEF ~AS' NOTIFIED': *or THE OCCURRENCF ._, . . .** . ,>'~k*

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THE.. SAME" OA:.Y .

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