ML20005D624

Revised Epips,Including Revs 14 & 11 to AP-380 & EP-290, Respectively

ML20005D624
Person / Time
Site:	Crystal River
Issue date:	10/31/1989
From:	FLORIDA POWER CORP.
To:
References
PROC-891031, NUDOCS 8911200049
Download: ML20005D624 (88)

Text

{{#Wiki_filter:rmr

p c i

e l DOCUMENT TRANSMITTAL FORM 18627 '.FOR DOCUMENTS TRANSMITTED TO DC DESK (NRC)* DATE: 31 OCT 1989 lL BATCH: 184 qj Mi il .f. ^ DOCUMENT NUMBElf SHEET NUMBER REVISION NUMBER. COPY NUMBER ' 'AP 380 14 '7 EP.290 11. 25 INSTRUCTIONS TO THE ADDRESSEE COMPLETE EACH OF THE INSTRUCTIONS BELOW WHICH ARE MARKED WITH AN " X g y (1) VERIFY THE DOCUMENTS RECEIVED AGREE WITH THE ABOVE DESCRIPTION -(2) INCORPORATE THE TR ANSMITTED DOCUMENTS INTO YOUR FILES-(3) DESTROY DOCUMENTS OR PORTIONS OF DOCUMENTS SUPERSEDED BY. THE ABOVE -(4 ) SIGN AND DATE IN THE SPACES BELOW INDICATING THAT YOU COMPLETED THESE INSTRUCTIONS. (5) SIGN BELOW INDICAT ING THAT YOU HAVE RE AD ' AND UNDERSTOOD. THE' l CHANGES.AS~ IDENTIFIED j. d (6) RETURN TO DOCUMENT CONTROL, CRYSTAL RIVER UNIT 3, MAC# NA1C___,, l NR2Ag_ FL A. POWER COR P., -- P. O. BOX 219 CRYSTAL RIVER FLA. 32629 . SIGNATURE OF ADDRESSEE DATE INDEPENDENT VERIFICATION DATE (OP S) [ N S (L o}\\ g-eV < "% yf' %q f}? e 11 8911200049 891030 9 PDR ADOCK 05000302 PNU,g\\pf ~F% %gg,_,,..

c: T}YT

4' r

y .?< X .,i,9L,

p

..ESA ' REV 14-DATE =10/31/.89: -AP-380 d o, g ( ENGINEERED SAFEGUARDS ACTUATION a-1.0 ENTRY CONDITIONS, u 1E any of the following conditions exist:- o.' Manual ES Actuation, o RCS PP.ESS is-<:1500 psig, f*N"NION8mme">wwen:twwx e [f;; c i.;if ff 7 g g ;c g 74 L f', y Doouniont Secten 4 r-r -ol RB PRESS is > 4 psig,- J C. R.1,'uc!m - Ili@ use this-procedure.. i- ^- ~~~ i i I \\ \\ o b .This Procedure Addresses Safety Related Components [ Approved by NOS LU Rh h Date /c). 3 /- Pf AP-380 PAGE 1 of 55 ESA m

sq c :, t + J p it :, _-,g,,', '. f t p*

u..

1 s s [s - w i ty 44 5 p. b t t () f ). ,-s y L r 3;;

• ):

i' i BLANK PAGE t i .3 r ae + ..i s 'y { e AP-380 REV. 14 PAGE 2 of 55 ESA 3F 4

} I 2.0 IMMEDIATE ACTIONS 1 4 ' ACTIONS DETAILS - l 2.1 Ensure ES status _ lights are blue for the' actuated. systems. CAVTION if RCPs have 801 been stopped within 2 min from the time that adequate subcooling margin was lost, IBfB RCPs must remain running to prevent core damage. 22 Verify adequate subcooling Adequate Subcooling Margin margin. RCS PRESS MARGIN 1E adequate subcooling margin does NDI exist, > 1500 psig 2 20*F IBEN stop all RCPs. s 1500 psig 2 50*F e A s, AP-380 REV 14 PAGE 3 of 55 ESA

L p, f l + r h-- -,?? i I +'- p ,3, j i 4 p o t 6 ~ r r f 3 -5 BLANK PAGE ,-t I .+ E .c AP-380 REV 14 PAGE 4 of 55 ESA e

s

l b i

^ t ) t 4 43I -3.6 FOLLOW-UP ACTIONSL .,y ,f '7 ACTIONS: DETAILS y I-1, : ..y ~ {3.11 Not1fy-SOTA of plant- . conditions. t 3.' 2 - CONCURRENTLY PERFORM VP-580, Plant Safety. Verification Procedure, J beginning with Step 1.1.- ts J 1 1 i a AP-380-REV 14 PAGE 5 of 55 ESA sy WW# y__

4-q D-n y -c4 ;, ik *' i - Table: 1:; Adequate Subcooling Margin - i. Y ^ 'RCS PRESS- ' MARGIN: v "4' , ::1500 psig i: 20'F : e-L M < 1500 psig' 2 50'FL i r- ?l*~ i h r ? i E Cs s 1 ? l' i 4. t l ' AP-380 REV-14 PAGE 6 of 55 ESA o l

~ g ': .. FOLLOW-UP ACTIONS (CONT'D)- 3.0 i AEllDNS DETAILS-

CAUTION

.lf-RCPs have NQI been-stopped within 2 min from the time that adequate subcooling margin was lost, IBEH RCPs must remain running to prevent core damage. ? 3.3' IE, at any time.while See Table 1 for adequate performing this procedure, subcooling margins. adequate'subcooling margin does HQI exist, i IBEH: j Stop all RCPs, Stop all RCPs and ensure Oil Lift pumps start. . Raise OTSG levels to Raise OTSG level to 95%: 95% using EFW,

1. Ensure both EFW trains are actuated.

2. Depress "95%" level select pushbuttons on OTSG r

A and B. Start full HPI. Start full HPI: l. Open MVP suction valves from BWST: o MUV-58 o MUV-73. l-2. Ensure 2 2 MUPs and their cooling water pumps are operating. g-

3. 0 pen all 4 HPI valves:

,r l' MUV-23 MUV-24 1 MUV-25 MUV-26. l. l '.i AP-380 REV 14 PAGE 7 of 55 ESA l.

s -t ' $9 ^ .ev i Table 1:! Adequate Subcooling Margin- -RCS PRESS-MARGIN- > 1500 psig 2 20*F s 1500~psig. 1 50*F i i ) i 3.3 1E adequate subcooling margin does 801 exist, IBEN:: o Within 2: min, stop all RCPs, l o' Raise OTSG levels to 95% using EFW,' o Start full HPl. i T t s;, t .y 'AP-380 REV 14 PAGE 8 of 55 ESA

e f 8 p -l, f- y. d' 13.0 ' FOLLOW-UP ACTIONS-(CONT'D)- 3 M . ACTIONS _ DETAILS-N o f 3.4_ E adequate subcooling' . margin-does HQI exist, l AtlQ all-RCPs have RQI. H been. stopped within.2' min, h E -reduce. operating ) RCPs to 1/ loop. y r . 3.5 . E, at any time while performing this procedure, incores indicate super-heated conditions, M GO:TO EP-290,. Inadequate Core Cooling,- beginning with Step 2.'l. s NOTE IE HPI flow is 2 200 gpm for any nozzle, as indicated on the narrow range HPI flow instrument 1ocated.on Redundant Instrument: Panel, M use the wide range HPI flow instrument for that nozzle on ES Section of Main. Control Board.. _a L316 H, at anytime while 1. Select the' following;to performing'this procedure, " BYPASS" on both A and B HPI' actuation is present, HPI channels. IR@ bypass HPI-actuation, ~ AtiQ balance HPI flows, "HPI RCl", l At[Q determine LPI pump requirements. "HPI RC2", "HPI RC3". 2. Throttle HPI valves to maintain equal flows on all 4 injection lines. 3. E RCS PRESS is > 500 psig i It!fB stop both DHPs. 4 i AP-380 REV 14 PAGE 9 of 55 ESA ~ .# w

r l .a : I'" LTable.1': Adequate-Subcooling' Margin n r. RCS PRESS MARGIN- ':l in "C > 1500 psig 2.20*F-5:1500 psig: 1 50'F L 3.3 -1E adequate subcooling margin does 801 exist,. IHIH: l; .o Within 2 min, stop all RCPs,- p o Raise OTSG levels to 95% using EFW, e - o -Start full-HPI, l 3,5 IE incores indicate superheated' conditions,- IBEN'GO TO EP-290, Inadequate Core Cooling, beginning with Step 2.1. t 4 t i i AP-380 REV 14 PAGE 10 of 55 ESA

r e f3.0 F0LLOW-UP ACTIONS (CONT'D) ACTIONS. DETAllS

3. 7; if, at anytime'while performing-

.l. Reset LPI bistables: ..4 this procedure, LPI actuation is present, RC4 in ACT, CHAN. CAB #1 &HD RCS pressure is > 500 PSIG RC5 in ACT. CHAN. CAB #2 IHEN: RC6 in ACT. CHAN. CAB #3 Stop both LPI pumps. 2. If HPI actuation is present, IEEN select the following to? Go to step 3.8 of this procedure. " BYPASS" on both A and B HPI . channels: "HPI RCl" "HPI'RC2" "HPI RC3" 3. Ensure HPI valves are throttled to maintain equal s flows on all 4 injection lines. 4. STOP DHP-1A and.DHP-1B 3.7.1 If, at anytime while performing o Ensure DHV-Il0 and this' procedure, LPI. actuation DHV-Ill are operating is-present, AND RCS pressure properly. is < 500 PSIG AND LPI flow is >'300 GPM / pump o Refer to OP-40.4 for DHP lHEN:' run time limits Ensure proper operation o Select the following to " BYPASS" on both A and B Bypass LPI actuation channels: "LPI RC4" Go to step 3.8 of this procedure. "LPI RC5" 4 ~~~ "LPI RC6"

• 1 AP-380 REV 14 PAGE 11 of 55 ESA

y g; 4 .y,_ <.: a .9

.i.'

4 "i

Table 1:: Adequate' Subcooling Margin"

RCS PRESS-MARGIN

A > 1500'psig. - 1 20

• F.

s.1500 psig' . 2 50* F. 3.3. J.E adequate subcooling' margin does N.QI exist, IliEN: -o Within 2 min, stop all RCPs, n o Raise OTSG 1evels to 95% using EFW,

o. Start full:HPI.-

3.5

-JE incores indicate superheated conditions,'

IllEN GO TO EP-290,; Inadequate Core Cooling... - l beginning with-Step 2.1. >i - i a

. 4 s

i 1 1 AP-380 REV 14 PAGE 12 of 55 ESA

= y.e q h h* 3.0- FOLLOW-UP ACTIONS (CONT'D) -ACTIONS DETAllS -3.7.2 E,'at anytime while performing o' Select the following to this procedure,'LPI actuation " BYPASS" on both A and B is present E RCS pressure channels: is < 500 PSIG E LPI flow "LPI RC4" is < 300 GPM /. pump "LPI RC5" 111 0 :. "LPI RC6" Bypass LPI actuations o To' increase LPI flow,- t Perform the following. Increase LPI flow steps in order: 1 Ensure DHV-Il0 and i DHV-111 are open. E LPI-flow is >300 GPM ltiG GO T0 step 3.8 2_ Open the PORV o RCV-10 E LPI flow is >300 GPM THEN GO T0 step 3.8 3 Perform step 3.31 of this procedure, HPI suction from LPI. THEN RETURN T0 this' step. IF-LPI flow is >300 GPM JJ13 GO T0 step 3.8 4 Open the High Point vents. PZR vents: o RCV-159 o RCV-160 m Hot Leg vents: o RCV-157 o RVC-158 o RCV-163 o RCV-164 ~ GO T0 step 3.8 AP-380 REV 14 PAGE 13 of 55 ESA

i.( > is.

! [_

-; p-N f - . Table 1:1 Adequate Subcooling Margin ~ .a c h: RCS PRESS: MARGIN L' > 1500 psig-2-20'F s-1500 psig 2-50'F ' b r 3.3 11E adequate subcooling margin does HQI_ exist,. r ? ItiEH: o Within 2 min, stop-all RCPs, s ' o Raise' OTSG-levels-to 95% using' EFW, o StartLfull HPI. s

3.5 if~incores indicate superheated conditions,-

IBfB GO T0 EP-290, Inadequate Core Cooling, i beginning with Step 2.1. ) e ) ~ i' _j l 1 Er: j t i l L. 1 o -: l~ i AP-380 REV 14 PAGE 14 of 55 ESA f I o l l 1

a r " di 3.0 ' FOLLOW-UP ACTIONS (CONT'DF [ ALIl0NS DETAILS-L3.8-IE RB isolation.actuationi Select the following-to is present, " BYPASS" on both A.and B RBI. 181B ensure all RB channels:- isolation status lights are blue,- "RB 150 RBl" &NQ bypass RB isolation. "RB ISO RB2", "RB ISO RB3". Hall High RB TEMPS may cause level instrumentation inside the RB to read high, for example, with localized TEMPS of-350'F, level may read 10% higher than actual.. 3.9 IE.RB Spray actuation Ensure BSV-3 and BSV-4 are is present,- regulating flow at IBIN ensure proper flow. 1500 to 1600 gpm. 1E either BSP does HQI Close on affected pump:

start, IHfB close discharge valve o

BSV-3 on affected pump-. o BSV-4. N [ AP-380 REV 14 PAGE 15 of 55 ESA l L >~

5, -, I<, L cai-1 f-!! iE" Table 1 Adequate Sub' cooling Margin. ) 1 -RCS PRESS. MARGIN-t p >-1500 psig-12 20'F e s 1500'psig 2 50*F n 0 i L v. 3.3L IE adequate subcooling margin does HQI exist, e. BIEN: 1 o Within 2 min, stop all RCPs, l 9w r -o-Raise 0TSG. levels to 95% using EFW, o Start. full HPI. t 3.5 lE incores ' indicate superheated conditions, IBIB GO TO EP-290,; Inadequate Core Cooling, beginning=with Step 2-l. I' l-jF i l 1 ~AP-380 REV 14 PAGE 16 of 55 ESA i. \\;

m.c i .a; l' 3.0" FOLLOW-UP ACTIONS'(CONT'DF ACTIONS = ' DETAILS H91R 1E loss of subcooling was due to an overcooling event, ItiM OTSG PRESS control should be regained prior to raising OTSG level. 3.10- -1E ES actuation is due to Observe for: an overcooling event, ' Itid determine cause, o Low OTSG PRESS, &@ stop overcooling. o-High OTSG level, i o High MFW or EFW flow. l o SPDS trace indicating 4 overcooling. l s 3.11 Isolate possible. sources 1. . Isolate the following: of low RCS PRESS. o Jf the PORV is @l required to be opened, -l ItifE close RCV-ll, 1 PORV block. o Close the'following-letdown coolers inlet 1. valves: -jl MUV-38, MUV-39, 4 4 MUV-498. o Close RCV-13, PZR spray $6 l block valve. o Ensure DHV-3 is closed. 2. Reopen RCV-ll while observing RCS PRESS. AP-380 REV 14 PAGE 17 of 55 ESA s

-j q 7 .j l o ln u. 1 '/ iTable 1::kdequate _Subcooling _ Margin - I RCS PRESSE MARGIN 'l--- >-1500 psigs 1 20*F; 4 f 1500 psig 2 50*F; 'i k ~ 3.3' '1E adequate subcooling margin does N_QI exist, M:. o Within 2 min,-stop all RCPs, o Raise OTSG-levels to 95% using EFW, o Start full'HPI.- 1 3;5 jf incores indicate'superheated conditions, M G0 TO EP-290, Inadequate Core: Cooling, beginning with' Step 2.1. Table - 2: Required 0TSG Levels Condition Level g Inadequate subcooling margin 95% No RCPs 65%'

and-adequate:subcooling margin RCPs Low. Level and' adequate subcooling marg'in Limits

"E ; 1 ,AP-380 REV 14 PAGE 18 of 55 ESA .r 4 k

Qt ' [ l:)Q g ln, 3 ^ IL 350; FOLLOW-UP7 ACTIONS (CONT'D) ~ I ACTIONS > DETAILS ~ i e***********************************************************************- CAUTION i E adequate subcooling margin.does El exist, A E incore TEMPS are increasing, eM EFW'should be maintained > 125 gpm/0TSG until 95% Z( level Lis reached, to ensure adequate OTSG' heat removal. 1 3, cc***********************************************************************-

i 13;12' Ensure EFW is-actuated.

See Table 2 for required 0TSG Ju and' selected to required . levels.: i OTSG setpoint. E EFW and MFW are-MI available, M' GO.:TO Step 3.41 -in Begin HPI/PORV cooling. this procedure. E EFW (s El.available, M CONCURRENTLY PERFORM AP-450,' EFW Actuation', beginning'with Step 3.9',

3.13:

E CFTs have emptied, M GO-TO Step 3.30 in.this' procedure. 3.14' H, at any-time'while'. 1. Ensure RCV-II, PORV

performing this procedure,

. block, is open. RCS PRESS is > 2300'psig, ' E open the PORV.to 2. Select PORV to "0 PEN". lower RCS PRESS to = 100-psig:above OTSG PRESS. 3. M RCS. PRESS is:above "4 = 100'psig > OTSG PRESS, M select PORV to "CLOSE", 4. Verify PORV closed using ultrasonic indicators. W d[i E PORV does El close, M close RCV-ll, PORV Block Valve. E PORV is El available, o PZR vents: E use PZR vents to lower RCS PRESS. o RCV-159 o RCV-160. ' AP.-380 - REV 14 PAGE 19 of 55 ESA 1

J i a

9. r i.'

."Y ~ Table -1: Adequate.:Subcooling Margin: .RCS' PRESS.. . MARGIN. i > 1500'psig 2 20'F- -1. H 3 s 1500;psig; 2 50*F: q I ~ 3.3 -1E adequate subcooling margin does EQI exist, ItiEti:- o Within 2. min, stop all RCPs, o Raise OTSG levels to.95% using EFW, 1 ~ o Start full HPI. [. 3.5 IE incores indicate superheated conditions, f IliEfi C0 TO EP-290, Inadequate Core Cooling, j beginning with: Step 2;1. Table 2: Required 0TSG Levels -Condition Lev'el . Inadequate subcooling margin 95%. L-No RCPs 65% l and adequate subcooling margin g.: RCPs' Low Level.. ~' L and adequate subcooling margin-Limits-I L: 3.14 1E RCS PRESS-is > 2300 psig, 1 l' IllEli open the PORV and lower RCS PRESS to = 100 psig above .OTSG PRESS.- \\ l t I AP-380 REV -14 PAGE 20 of 55 ESA ee c-

o i }L ,o. FOLLOW-UP ACTIONS (CONT'D). ineA ACTIONS: DETAILS .c********************************************************************** CAUTION HPI flows.must not be throttled to < 100 gpm/ pump with MVP recirc valves closed, to prevent pump. damage.. o********************************************************************* ? 3.15 1E HPI throttle requirements .o Open MVP recirc valves: are met,- -l IBEH open MVP recircs,. o MUV-53 o MVV-2E7. l 68D throttle HPI as I required. o HPIl throttle requirements: o HPI must be throttled 'l to maintain subcooling 'j margin < 100*F when no RCPs are operating. o 11 adequate subcooling .{ exists based on incores, IBIB HPI must be throt-tied to maintain RCS PRESS and TEMP below the NDT curve, see SPDS or I o HPI must be throttled i to maintain HPI flow < 540 gpm/ pump. i As? 0 HPI should be throttled to i maintain PZR: level 80" to 220" WHEN adequate sub-cooling margin exists l based on incores o HPI may be throttled when adequate subcooling margin i exists based on incores. AP-380 REV 14 PAGE 21 of 55 ESA

Q [ ^ g .b -r L c. .s ; c Table 1:Adequat'eSubcoolingMargin -l pw: ,i ~ 'RCS PRESS = MARGIN-p W [ > 1500 psig' 2 20*F j 's'1500 psig 2 50*F .E adequate subcooling margin does RQI exist, 3.3 M: 4

o. Within _2 ' min, stop; all 'RCPs, 4

o Raise OTSG. levels to _95% using EFW, o Start full HPI. 3.5

E-incores indicate superheated conditions, M G0 TO EP-290,~ Inadequate Core Cooling, beginning with Step 12.1.

y 3.14-- H RCS PRESS'is > 2300 psig, M.open the PORV and lower RCS PRESS to = 100 psig above OTSG PRESS. t 3,15' E HPI throttle requirements are met, M open MVP recircs, MQ throttle HPI flows as required. o' HPI must be throttled to maintain subcooling margin-1-100*F when no RCPs are operating. o .E' adequate subcooling margin exists based on incores M HPI must be throttled:to maintain RCS PRESS and TEMP below NDT. curve. 3st L o HPI must be throttled to maintain HPI flow < 540 gpm/ pump. o HPI should be throttled to maintain PZR level 80" to 4 220" M adequate subcooling margin exists based on incores. E o. HPI may be throttled when adequate subcooling margin exists. based on incores. 5 (; L AP-380 REV 14 PAGE 22 of 55 ESA y-u ~11 ~

p ~- L' '{ '$.01F0LLOW-UPACTIONSfCONT'D) i; I i 4 g (( A(J1QRS.' DETAILS- {

3.16 M'eith'er OTSG PRESS is' Depress "< 725' PSI OTSG PRESS.

between 725 and 600 psig, EFIC ACT BYPASS" pushbuttons-M bypass EFIC MS and MFW-1 solation-actuations.. Channel. A Channel B P Continue on in this Channel C' Channel D.. procedure. n - Subcooling margin should be closely observed after starting each RCP. I t 13.17 ~ E, at any time while o RCPs are available when all performing this procedure, the following exist: RCPs a're available,

AtiD 21-OTSG is available, o

RCP start permissives M start 1 RCP in each are met, '.l oop. RCS PRESS'and TEMP' QB 2 RCPs in 1 loop .o are above RCP NPSH -H RCPs are available, curves, see SPDS-or At(Q OTSGs are RQI available, Enclosure'1, J M start 1 RCP. L o Adequate subcooling margin, see Table 1. o OTSGs. are available when-all the following exist: o EFW or MFW available, o .TBVs or ADVs available, o OTSG integrity. ^ o Establish RCP-1B operating. for maximum PZR spray. l i l.- AP-380 REV 14 PAGE 23 of 55 ESA ~

^ '~ ' ~ ft: ',? f 9 y c. +

i 3,3! 1E adequate subcooling margin ~does 801 exist,

~i .n

t. ~IHg8:'

l I 'o' Within 2 min,L stop all-RCPs, f ~ o Raise OTSG levels to 95% using EFW, i ~ .o Start full"HPI, i 3.5: IE incores indicate superheated conditions,- IHEN GO TO EP 290,: Inadequate Core Cooling, -beginning with Step 2.1, q t 3.14L 1E RCS PRESS is > 2300 psig, IBEN open the: PORV and lower RCS PRESS to = 100 psig above f OTSG-PRESS. -[ 1 3.15. 1E HPI-throttle: requirements are met. .IBEM open MVP recircs, 1 AND. throttle HPI; flows as required. o .HPI must. be throttled to maintain subcooling margin s 100*F when no RCPs are operating, o 'IE adequate subcooling margin exists based on incores INEN HPI must be throttled to maintain RCS PRESS and TEMP-s 'below NDT curve, o HPI must be throttled to maintain HPI flow < 540 gpm/ pump. o HPI'should. be throttled to maintain PZR l'evel 80" to ~220" HBEN adequate subcooling margin exists based on [, incores. ~ o-HPI may be throttled when adequate subcooling margin exists based on incores. 3,18 ' If RCPs are available, 4 AND OTSGs are available, IHEN start 1 RCP in each loop. IE-RCPs are available, AND OTSGs are HQI available, IHEN start 1 RCP. ~ c . AP-380 REV 14 PAGE 24 of 55 ESA

y _.g -- ['*' 3.0 FOLLOW UP ACTIONS (CONT'D) p-ACTIONS DETAILS ~ 3.18 If at any time while Nat Cire is desired when All of performing this procedure, the following conditions exist: adequate subcooling margin is established, o RCPs are HQ1 available, g) Nat Circ is desired, H ]l CONCURRENTLY PERFORM o 11 OTSG is available. AP 530, Nat Circ, beginning at Step 3.5. 3.19 Establish and maintain OTSG Lower OTSG PRESS using TBVs or ___ Tsat 40 to 60*F below ADVs. incore TEMP until OTSG heat removal is established. 3.20 if adequate subcooling RCPs should be bumped when all margin does HQI exist, of the following conditions AND RCS cooldown rate exist: is < desired, IBEN determine if RCPs o RCS cooldown rate is should be bumped. < desired. o RCP power is available. o All RCP start permissives are met. I r

h.

AP-380 REV 14 PAGE 25 of 55 ESA l i

g q v C. i ?5J l i ' 3.3 '1E adequate subcooling margin does @I exist, M: i ~ i o Within 2 min, stop all RCPe. o Raise OTSG levels to 95% using EFW, f [ o Start full HPI. { { 3.5 - IE inceres indicate superheated conditions, M GO TO EP 290, Inadequate Core Cooling, L beginning with Step 2.1. l 7, 3.14. H RCS PRESS is > 2300 psig,. E open the PORV and lower RCS PRESS to = 100 psig above 0TSG PRESS. i 3.15 If HPI throttle requirements are met. E open MVP recires, AE throttle HPI flows as required. o HPI must be throttled to maintain subcooling margin 5 100'F when no RCPs are operating. o 'E adequate subcooling margin exists based on incores M HPI must be throttled to maintain RCS PRESS and TEMP below NDT curve. o HPI must be throttled to maintain HPI flow < 540 gpm/ pump. o-HPI should be throttled to maintain PZR level 80" to 220" E adequate subcooling margin exists based on 'l incores. o HPI may be throttled when adequate subcooling margin i exists based on incores. '4 3.18: IE RCPs are available, &@ OTSGs are available, E start 1 RCP in each loop. 1E RCPs are available, . A@ OTSGs are MI available, M start 1 RCP. i AP-380 REV 14 PAGE 26 of 55 ESA

3.0 FOLLOW-UP ACTIONS (CONT'D) ACTIONS DETAILS ~ Halt HPI flow may affect the indications of Nat Cire. N91t Subcooling margin should be closely observed after each RCP bump. 3.21 1E RCPs should be bumped, o To bump a RCP, start it, IBEN bump RCPs at = 15 min wait for current to drop off intervals and observe for to normal, then stop it, saturated Nat Cire after each bump. o First RCP bump should be in the loop with the highest OTSG 1evel. o Balance the bumps between available RCPs. o Record the times of the RCP bumps. o Indications of saturated Nat Cire are: o Tc = Tsat of OTSG, o Tc and incores lower when OTSG PRESS is lowered, a 4 AP-380 REV 14 PAGE 27 of 55 ESA

y _ h -o G ? if 3.3 E adequate subcooling margin does HQI exist. l-M: o Within 2 min, stop all RCPs, o Raise OTSG levels to 95% using EFW, o Start full HPI. 3.5 E incores indicate superheated conditions. M GO TO EP 290, Inadequate Core Cooling, beginning with Step 2.1. ) 3.14 E RCS PRESS is >:2300 psig, s E open the PORV and lower RCS PRESS to = 100 psig above OTSG PRESS. P 3.15 H HPI throttle requirements are met, It((H open MVP recircs, ANQ throttle HPl flows as required. o HPI must be throttled to maintain subcooling margin s.100'F when no RCPs are operating. J L o-E adequate _subcooling margin exists based on incores IHf8 HPl.must be throttled to maintain RCS PRESS and TEMP below NDT curve. ,o HPI must be throttled to maintain HPI flow < 540 gpm/ pump. o HPI should be throttled to maintain PZR level 80" to L 220" Wi![N adequate subcooling margin exists based on incores. o HPI may be throttled when adequate subcooling margin exists based on incores. 3.17 E RCPs are available. AND OTSGs are available, E start 1 RCP in each loop. E RCPs are available, AND OTSGs are NOT available, M start 1 RCP. AP-380 REV 14 PAGE 28 of 55 ESA o l

hy b 3.0 FOLLOW UP ACTIONS (CONT'D) ACTIONS DETAILS 3.22 lE OTSG heat removal is 1. Ensure PORV is closed. established, 1110 ensure PORV 2. Verify PORY closed using t is closed, ultrasonic flow AliQ ensure PZR vents indication. are closed. 3. Ensure PZR vents are closed' o RCV-159 o RCV-160. 3.23-If RCS cooldown can be RCS Cooldown Rate Limits. controlled, It[G maintain RCS cooldown RCS TEMP LIMIT within limits. 'F 'F/HR Normal > 270*F 1 100 270 to 171 1 50 s 170 s 10 Nat Cire > 280'F-1 10 280 to 150 s5 < 150 s 2.5 s 50 a OTSG Tube Refer to EP-390 Leak Table 3

• 0nly to be used if RCS PRESS is maintained above Nat Cire.

cooldown curve, see Enclosure 3. g Maintain RCS cooldown rate: o Throttle TBVs or ADVs. o Throttle EFIC control valves, j o IE adequate subcooling margin exists, IllG throttle HPl flows. ~ AP-380 REV 14 PAGE 29 of 55 ESA i

r. 4 d ;c: 3.3 1E adequate subcooling margin does HQI exist,. IB[g:- r o Within 2 min, stop all RCPs,. o Raise OTSG 1evels to 95% using EFW, t o Start full HPI. n 3.5 If incores indicate superheated conditions, IHLH GO TO EP-290, Inadequate Core Cooling, beginning with Step 2.1. 'i i 3.14 1E RCS PRESS is >-2300 psig, IBIN open the PORV and lower RCS PRESS to = 100 psig above OTSG PRESS. 3.15 If HPI throttle requirements are met, 1818 open MVP recircs, aHQ throttle HPl flows as required, o 'HPI must be throttled to maintain subcooling margin s 100*F when no RCPs are operating. o 1E adequate subcooling margin exists based on incores IHEN HPl must be throttled to maintain RCS PRESS and TEMP below NDT curve, o HPI mus,t, be throttled to maintain HPI flow < 540 gpm/ pump. o HPI should be throttled to maintain PZR level 80" to 220" WHIH adequate subcooling margin exists based on incores. o HPI may be throttled when adequate subcooling margin exists based on incores. i 3.17 If RCPs are available, i &ND OTSGs are available, IHEN start 1 RCP in each loop. IE RCPs are available, AHQ OTSGs are HQI available, IliEN start 1 RCP. AP-380 REV 14 PAGE 30 of 55 ESA

l 3.0 FOLLOW-UP ACTIONS (CONT'D) ACTIONS DETAILS ~ l3.24 E RCS PRESS lowers to I Notify AB Operator to 700 psig, remove locks and close E adequate subcooling Bkrs for CFV-5 and CFV-6, margin exists, CFT outlets, i M isolate CFTs, E bypass LPI actuation. 2 Close: o CFV 5 o CFV-6.

3. Select the following to

" BYPASS" on both A and B LPI channels: LPI RC4, LPI RCS, LPI RC6. t 3.25 E conditions exist to o Stop HP1 if 111 of.the stop HPI, following conditions exist: ItG: o Adequate subcooling margin, o PZR level is 1 50", Ensure PORV is closed, o OTSG heat removal, Ensure PZR vents are

closed, o

Leak is within capabilities of normal make-up. o PZR vents o RCV-159 o RCV-160. 3.26 E EF Tank is < 3 f t, M CONCURRENTLY PERFORM AP-450, EFW Actuation, beginning with Step 3.18. 3.27 E PZR bubble is desired, ItB refer to OP-305, Operation of the PZR, Section 5.2. AP-380 REV 14 PAGE 31 of 55 ESA

1 i o 3.3L E adequate subcooling margin does El exist, M: 1 y o Within 2 min, stop all RCPs, o Raise OTSG levels to 95% using EFW, o Start full'HPI.- p .j i I 3.5 1E incores indicate superheated conditions, M GO TO EP 290,: Inadequate Core Cooling, i beginning with Step 2.1. ] a i 3.14 1E RCS PRESS is > 2300 psig, M open the PORV and lower RCS PRESS to = 100 psig above i OTSG PRESS. 3.15 1E HPI throttle requirements are met, E open MVP recircs, E throttle HPI flows as required, o HPI must be throttled to maintain subcooling margin [ $ 100'F when-no RCPs are operating. i o 1E adequate subcooling margin exists based on incores i M HPI must be throttled to maintain RCS PRESS and TEMP below NDT. curve. o-HPI must be throttled to maintain HPI flow < 540 gpm/ pump. o-HPI should.be throttled to maintain PZR level 80" to ,f 220" M adequate subcooling margin exists based on incores. r o HPI may be throttled when adequate subcooling margin exists based on incores. -3,17 IE RCPs are available, AE OTSGs are available, M start 1 RCP in each loop. IE RCPs are available. l A@ OTSGs are MI available, L M start 1 RCP. l 1. AP-380 REV 14 PAGE 32 of 55 ESA ? l l

L'*. O 3.0 FOLLOW-UP ACTIONS (CONT'D) L ACTIONS DETAILS 4.. l l F 3.28 If cooldown is on 1 OTSG, o Tube to Shell AT equals IH[H ensure tube to'shell Avg of 5 OTSG shell AT < 100*F on isolated thermocouples minus Tc. OTSG. o Computer points are R-773 and R-774. } .o' Feed and steam OTSG to l-maintain tube to shell AT within limits. 3.29 If EDGs are HQI energizing o 11 EDGs have run > 5 min i the ES busses,

unloaded, 1H18 load EDGs, IHIH EDGs should be QB stop EDGs.

loaded, o

CONCVRRENTLY PERFORM applicable steps of SP 354A or B EDG Monthly Test, to load or stop EDGs. l 3.30 11 boron concentration of RB sump could have been diluted by significant steam or FW 1eaks.in the RB, IHfB notify Chemistry to sample RB Sump. I AP-380 REV 14 PAGE 33 of 55 ESA

M-f o 3.3 E adequate subcooling margin does HQI exist, M-o Within 2 min, stop all RCPs,- o Raise OTSG levels to 95% using EFW, l o Start full HPI.; j i 3.5 H incores indicate superheated conditions, M GO TO EP-290, Inadequate Core Cooling, beginning with Step 2.1. 3.14 E RCS PRESS is > 2300 psig, E open the PORY and lower RCS PRESS to = 100 psig above OTSG PRESS. 3.15 E HPI throttle requirements are met, M open MVP recires, MQ throttle HPI flows as required. o HPI must be tA.'ottled to maintain subcooling margin 5 100'F when no RCPs are operating. o E adequate subcooling margin exists based on incores M HPl must be throttled to maintain RCS PRESS and TEMP below NDT curve. o HPI must be throttled to maintain HPI flow < 540 gpm/ pump. 0 HPI should be throttled to maintain PZR level 80" to 220" E adequate subcooling margin exists based on

incores, o

HPI may be throttled when adequate subcooling margin exists based on incores. -3.17 E-RCPs are available, MQ OTSGs are available, M start 1 RCP in each loop. E RCPs are available, MQ OTSGs are H01 available, M start 1 RCP. AP-380 REV 14 PAGE 34 of 55 ESA i l

3 'i 3.0 FOLLOW-UP ACTIONS (CONT'D) l ] ACTIONS DETAlli l o ce********************************************************************* b CAUTION l Due to MUV-62 being normally closed, both DH trains are required l to be in operation to ensure suction to all the MVPs. C********************************************************************** f 't 3.31 -- 1E BWST is < 4 ft, 1 Ensure Open LPI suction QB as directed by Step 3.7.2 from BWST IHIH 'l 1. Establish LPI o DHV-34 o DHV-35, i suction from the BWST. 2 Start DHP-1A and DHP-18. f 2. Establish HPI l suction from LPI. 3 Open HPI suctions from LPI: 3. Notify AB Operator to energize DHV 3. o DHV-11 o DHV-12. 9 4 Close HPI suctions from BWST t o MUV-58 o MUV-73. t 5 Observe MVPs for signs of cavitation. 6 Energize DHV-3 at ES MCC-3A1. n. 3.32 If BSP is operating, 1. Select RB spray control ISIN place BS control valves to " LOCAL": to

• LOCAL" position prior to establishing suction from o BSV-3 o BSV-4 the RB sump.

L 2. Ensure BS flows of 1100 47 L to 1300 gpm/ train. l L AP-380 REV 14 PAGE 35 of 55 ESA 1

.c.

13.3 2 adequate subcooling' margin does HQI exist, R: o Within 2 min, stop all RCPs, o Raise OTSG 1evels to 95% using EFW, o Start full HPI. l [ E 3.5 1E incores indicate superheated conditions, I L M GO TO EP-290, Inadequate Core Cooling, beginning with Step 2.1. t i 3.14 IE RCS PRESS is > 2300 psig, M open the PORV and lower RCS PRESS to (100 psig above OTSG PRESS. l l3.15'IEHPIthrottlerequirementsaremet, i M open MVP recircs, E throttle HPI flows as required. o HPI must be throttled to maintain subcooling margin s 100*F when no RCPs are operating. o 1E adequate subcooling margin exists based on incores. M HPI must be throttled to maintain RCS PRESS and TEMP below NDT curve. o HPI must be throttled to maintain HPI flow < 540 gpm/ pump, o HPI should be throttled to maintain PZR level 80" to 220" ELN adequate subcooling margin. exists based on "'M i L incores. s o HPI may be throttled when adequate subcooling margin exists based on incores, 1 1 3.17 IE RCPs are available, E OTSGs are available. M start 1 RCP in each loop. 1E RCPs are available, l E OTSGs are N01 available, M start 1 RCP. l ~ AP-380 REV 14 PAGE 36 of 55 ESA 3iw n

r i.i d 3.0 FOLLW-UP ACTIMS (CONT'D) 5 ACTIONS DETAILS ~ 3.33 If BWST is < 2.5 ft, 1 Verify RB FLOOD level of IHLH establish LPI suction 2 1 ft. from RB sump, &MQ lsolate NaOH tank. -2 Open LPI suctions from R8 sump: I, o DHV-42 o DHV 43, f. L 3 Close LPI suctions from BWST: o DHV-34 o DHV 35. 4 Ensure HPl suction from i LPl. 5 ___ Close NaOH tank outlets: i L o BSV Il o -BSV-12. l i YN = M. H AP-380' REV 14 PAGE 37 of 55 ESA l i i

e ( .r e 3.3 '1E adequate subcooling margin does 301 exist, 18EN. o Within 2 min, stop all RCPs, o Raise OTSG 1evels to 95% using EFW, o Start full HPI. 3.5 IE incores indicate superheated conditions, IBEN'GO TO EP-290, Inadequate Core Cooling, j beginning with Step 2.1. l l 1 3.14 IE RCS PRESS is > 2300 psig, IMEN open the PORV and lower RCS PRESS to = 100 psig above OTSG PRESS, i 3,15 1E HPI throttle requirements are met, IBEN open MVP recircs, &NQ throttle HPI flows as required, g o HPI must be throttled to maintain subcooling margin s 100'F when no RCPs are operating. o 1E adequate subcooling margin exists based on incores IHEN HPI must be throttled to maintain RCS PRESS and TEMP below NDT curve. o HPI must be throttled to maintain HPI flow < 540 gpm/ pump. o HPI should be throttled to maintain PZR level 80" to i 220" WHEN adequate subcooling margin exists based on

incores, o

HPI may be throttled when adequate subcooling margin i, exists based on incores. 3.17 IE RCPs are available, &HQ OTSGs are available, IHEN start 1 RCP in each loop. If RCPs are available, &HD OTSGs are NOT available, IgEN start 1 RCP. AP-380 REV 14 PAGE 38 of 55 ESA

u b.

0 FOLL0ll-UP ACTIONS (CONT'D) -[ ACTIONS DETAILS ce********************************************************************* i CAUTION HPI flows must not be throttled < 100 gpm/ pump to prevent pump damage. 3.34 - 'lE LPI' flow is > 1000 gpm i per injection line for t .for 2 20 min. IBIN: i Stop HPI, Stop HPI: Ensure PORV is closed, 1. Open MVP recirc valves: Select PORV to o MUV-53 o MUV-257. " Low Range", l 2. Stop all MVPs and close all 4 HPI injection valves. Isolate CFTs. Isolate CFTs: 1. Notify AB operator to remove' locks and closed Bkrs for CFT isolations: o CFV-5 o CFV 6. 2. Close: l o. CFV-5 o CFV-6. 2 (! Ensure all high point Ensure closed: I vents are closed. RCV-159 RCV-160 i .i l RCV-157 RCV-158 KN RCV-163 ___ RCV-164. 3.35 1E adequate subcooling Refer to OP-404, Decay Heat margin exist, Removal System, Section 4.12. AND both LPI trains are available, 181N establish 1 LPI train in the DHR mode. AP-380 REV 14 PAGE 39 of 55 ESA

.~$

3.3 E adequate subcooling margin does E exist, l M: o Within 2 ~ min, stop all RCPs, o Raise OTSG levels to 95% using EFW, o Start full HPI.- 3.5 E incores indicate superheated conditions, M GO TO EP-290,- Inadequate Core Cooling, beginning with Step 2.1. 1 3,14 E RCS PRESS is > 2300 psig, 1 M open the PORV and lower RCS PRESS to = 100 psig above OTSG PRESS. j I 3.15 E HPI throttle requirements are met, 1 JEEN open MVP recircs, AE throttle HPI flows as required. ] o HPI must be throttled to maintain subcooling margin 1 100'F.when no RCPs are operating. o E adequate subcooling margin' exists based on incores JEEN HPI must be throttled to maintain RCS. PRESS and-TEMP below NDT curve. o HPI must be throttled to maintain HPI flow < 540 gpm/ pump. o HPI should be throttled to maintain PZR level 80" to 220" WHEN adequate subcooling margin exists based on i -incores. o' HPI may be throttled when adequate subcooling margin exists based on incores. 4 3.17 E RCPs are available, A@ OTSGs are available, JEEN start 1 RCP in each loop. H RCPs are available, A@ OTSGs are E available, JEES start 1 RCP. AP-380 REV 14 PAGE 40 of 55 ESA

,c l _ FOLLOW-UP ACTIONS (CONT'D) 3.0 i I ACTIONS DETAILS l p 3.36 E LPI or DHR is I supplying core cooling, E stop OTSG cooling. r 1 Continue on in this o To stop OTSG cooling: procedure. o Stop MFW and EFW pumps,., l o Close: A OTSG B OTSG ~ FWV-30 FWV-29 I" FWV-31 FWV-32 ,FWV, g FWV-39 nav-on MSV 55 MSV-30 and 32 MSV 29 and 31 MSV-53 MSV 54 EFV-56 and 58 EFV-55 and 57 i 3.37 M RB PRESS is < 10 psig 1 Stop BSP 1A and BSP 18. and not rising,. JBEN stop RB. spray. 2 Close BSV-3 and BSV-4, BS control valves, i Continue on in this procedure. 3 Depress "BSP AUTO START FERMIT RESET" pushbuttons on both ES channels. 4 lE RB PRESS increases to 10 psig,. IBf3 reestablish RB spray. 8912 RB Cooling Fans should stay in operation until RB H levels are known, in order to provide mixing of RB atmosphere,2 7 3.38. Notify Chemistry to begin Notify Chemistry to refer to monitoring RB atmosphere EM-308, Post Accident Sampling . H, l evel. - of the RB Atmosphere. 3.39 GO TO OP-209, Plant Cooldown. 3.40 INTENTIONALLY LEFT BLANK ~AP-380 REV 14 PAGE 41 of 55 ESA

r I pi c 3.3 If adequate subcooling margin does HQI exist, I M: l o Within 2' min,;stop all RCPs, h L o Raise OTSG 1evels to 95% using EFW, j o Start full HPI. 1 I 3.14 1E RCS PRESS is > 2300 psig, E open the PORV and lower RCS PRESS to = 100 psig above OTSG PRESS. 1 3.15 E HPI throttle requirements are met, E open MVP recires,; ' MQ throttle HPI flows as required. o HPI must be throttled to maintain subcooling margin s 100*F when no RCPs'are operating, o E adequate subcooling margin exists based on incores. . M HPI must be throttled to maintain RCS PRESS and TEMP below NDT.' curve. .o. HPI must be. throttled to maintain HPI flow < 540 gpm/ pump. o HPl should be throttled to maintain PZR level 80" to 220" E adequate subcooling margin exists based on inC0res. V? 6 o HPI may be throttled when adequate subcooling margin exists based on inceres. j 3,17 E'RCPs are available, MQ OTSGs are available, i E start 1 RCP in each loop. H RCPs are available, MQ OTSGs are H01 available, M start 1 RCP.

y AP-380 REV 14 PAGE 42 of 55 ESA

i l 4 1.0 FOLLOW-UP ACTIONS (CONT'D) i ACTIONS DETAILS l Halt The following steps are to initiate HPl/PORY cooling. I ce*********************************************************************^ CAVTION HPI cooling must be established prior to any opening of the PORV. C********************************************************************** 3.41 Start full HPI. 1. Open MVP suctions from the BWST: o MVV-58 o MVV-73, 2. Ensure 1 2 MVPs and their cooling water pumps are running. 3. Open HPI Valves: MVV-23 MVV 24 MVV-25 MVV 26. 4. Ensure total HPI flow is - + > 500 gpm and balanced between all 4 injection lines. b AP 380 REV 14 PAGE 43 of 55 ESA

a; l a ec .3.3 1E adequate subcooling margin does El exist, i M: o Within 2 min, stop all RCPs, j o Raise OTSG levels to 95% using EFW, o Start full HPI. 13.5 1E incores indicate superheated conditions, M GO TO EP 290, Inadequate Core Cooling, beginning with. Step 2.1. 3.14 1E RCS PRESS is > 2300 psig, M open the PORV and lower RCS PRESS to = 100 psig above OTSG PRESS. t' 3.15 IE HPI throttle requirements are met, M open MVP recircs, @ throttle HPI flows as required, o HPI must be throttled to maintain subcooling margin $ 100*F when no RCPs are operating. o-1E adequate subcooling margin exists based on incores M HPI must be throttled to maintain RCS PRESS and TEMP below NDT curve. o HPI must be throttled to maintain. HPI flow < 540 gpm/ pump. ,p1 o HPI should be throttled to maintain PZR level 80" to 1 220" M adequate subcooling margin exists based on incores. L o HPI may be throttled when adequate subcooling margin exists based on incores. t 3.17_. E RCPs are available, E OTSGs are available, M start 1 RCP in each loop. 1E RCPs are available, E OTSGs are NOT available, M start 1 RCP, AP-380 REV 14 PAGE 44 of 55 ESA ~.

C 3.0 FOLLOW-UP ACTIONS (CONT'D) ~ ACTIONS DETAILS 3.42 'E OTSO heat removal is o PORY should be left open until HQI available, ADX of the following condi-AND only 1 MVP is available, tions exist: M open the PORV to j increase HPI flow. o HPI can be stopped, o OTSG heat removal is established. H PORV is HQI available, o PZR vents: -l M use PZR vents. o RCV-159 o RCV-160. N911 2 1 OTSG should be 2 6" prior to closing the PORV. 3.43 Open the PORV before 1 Ensure RCV-11, PORV exceeding RCS PRESS block, is open. 1imits. 2' Open PORV before: E PORV is HQI available, E open the PZR vents, o Exceeding PTS limits, e o Exceeding NDT limits, o Exceeding 2300 psig. l' 3 Verify PORV is open using ultrasonic indications. o Maintain PORY or PZR vents open until OTSG heat removal 'is established or LPI is providing core cooling. o PZR vents: o RCV-159 o RCV-160. I 3.44 E >l RCP is operating, Maintain RCP-1B operating to M reduce operating maximize PZR spray. RCPs to 1. AP-380 REV 14 PAGE 45 of 55 ESA j i ~_

hC v l

p..

3.3 E adequate'subcooling margin does HQI exist, i M: V ? o Within 2 min, stop all RCPs, g o Raise OTSG 1evels to 95% using EFW, L o Start; full HPI. U l 3.5 E incores indicate superheated conditions, l, M GO TO EP-290, Inadequate Core Cooling, beginning with Step'2.1. i h. 1 .3.14 E RCS PRESS is >-2300 psig, M open the PORY and lower RCS PRESS to = 100 psig above s 0TSG PRESS. i t j 3.15 E HPI throttle requirements are met, IEN open MVP recircs, E throttle HPI flows as required. o HPI must be throttled to maintain subcooling margin s 100'F when no RCPs are operating. i o H adequate subcooling margin exists based on incores. IEN HPI must be throttled to maintain RCS PRESS and TEMP below NDT curve. o-HPI must be throttled to maintain HPI flow < 540 gpm/ pump. 'o HPI should be throttled to maintain PZR level 80" to 220' WEN adequate subcooling margin exists based on

incores, o

HPI may be. throttled when adequate subcooling margin i exists based on incores. ti 3.17 E RCPs are available, u E OTSGs are available, M start 1 RCP in each loop. E RCPs are available. E OTSGs are N.QI available, IEN start 1 RCP. , l (; AP-380 REV 14 PAGE 46 of 55 ESA 1 l I.

??- 3.0 FOLLOW-UP ACTIONS (CONT'D) ACTIONS DETAILS ~ 3.45 MHEH RCS is < 1700 psig, Bypass HPI by selecting'the IHLH bypass ~HPI. following to " BYPASS" on both A and B channels: Continue on in.this procedure. "HPI RCl", "HPI RC2", "HPI RC3". ~ 3.46 Select both RB sump pumps to " PULL TO LOCK". 4 oc

.h i

AP-380 REV 14 PAGE 47 of 55 ESA S.

r.v ~ L 3.3~ If adequate subcooling margin does HQI exist, I o M: o Within 2 min, stop all RCPs, o Raise OTSG levels to 95% using'EFW, o Start full HPl. i 3.5 IE inceres indicate superheated conditione, j M GO TO EP 290, Inadequate Core Cooling, beginning with Step 2.1. I' 3.14 1E RCS PRESS:is > 2300 psig, i M open the PORV and lower RCS PRESS to = 100 psig above OTSG PRESS. c-3.15 If HPI throttle requirements are met, 1 .M open MVP recires, AMQ throttle HPI flows as required. o HPI must be throttled to maintain subcooling margin i 100*F when no RCPs are operating. o if adequate subcooling margin exi',ts based on incores E HPI must be throttled to ma'ntain RCS PRESS and TEMP below NDT curve. -o HPI must be throttled to maintain HPI flow < 540 gpm/ pump. o HPI should be throttled to maintain PZR level 80" to 220" E adequate subcooling margin' exists based on

incores, n ;

o HPI may be throttled when adequate subcooling margin exists based on incores. 4, i ' Y 3.17 IE RCPs are available, AND OTSGS are available, E start 1 RCP in each loop. IE RCPs are available, AND OTSGs are HQI available, M start 1 RCP. .-^ \\ AP-380 REV 14 PAGE 48 of 55 ESA

^ n J s 3.0 FOLLOW-UP ACTIONS (CONT'D) j i ACTIONS DETAILS 3.47 ___ Establish RB cooling, o Ensure all RB cooling fans j are operating in slow speed. o Ensure RB cooling fans are on SW cooling. J Malt i WHEN RCS TEMP < 425'F AND OTSG PRESS < 400 PSIG, IHLH MFWBPs may be used to recover from HPI/PORV cooling. 3.48,__ WBIN MFW or EFW become available, IBEN CONCURRENTLY PERFORM l AP-450, EFW Actuation, beginning with Step 3.9. Continue on in this procedure. 3.49 GO TO Step 3.16 in this procedure. l l. 1 { l l AP-380 REV 14 PAGE 49 of 55 ESA

usg -n m--- x y-n. a :m. x. < me. m m. x. a.e +, w- -+ ap n#

o. {c

.. # e,..%, pm.. _ m &m ^ w m..... ' s-.i.,mmwi , as 4: 1 s 3 -s. . m y-. ... gs wr gs ,s r \\[4 ~ ~U ^ ^ cn m _ ~p 4 s b ,.I hjf,6 j ]5 [ :;. ?] k " f, U k.1 .. ll4 x' j d a j s 5 ep - s g... s t b, y .?: w s... t. 4 wy. .y y e r 1 M b o.m-4 ... F 3 p's t o.. d tf: e 1 ;; i t

,y '

..i-L -

p.

, n*- 4 g i ".n"- k ANf 'gy C 's i V -' ,k,< rp/ . :.K 2 J g jjy ',Q,8 .3, -l 8 s s .J. ~ e, m, ~ .ay e e

c. ; 3

s...c.

+v n f.m \\,=g.+, u + ~a e ~ +. + s. .w ;4 ~. +- ~ y yner s. - n r a 0 tm;. i a.+ 2 a. ,.) {-! M:*u1 s c r s. - I W a,: 4 3 p '. ; e i i

9 t

s.. g - >

_. opn ry &;::i n, u q): _r W, _ b'). q. ie! v.y q; t .,,-if

p. ;

4 y g,' f.. '{-. j-_,<< '4 "2.k,,'.J( i .(, g g t "' W4[O[- h

• q [

',' j s, I ' Y ',, , k' ' - g'I g I g p g i i s @, I ~~v' P.g, <a, i,. 's ] -, 1,. ,: a,, I .c.J i~ ..t c, a i i ^_ w. , j*,' , '. ; c-M.,.,,, <, e ). i W 'p"--c s. i ( J, A 'i -,. -{ k g. i c O e a 1 s g s ..,5 -A ,-kV 'y' ' ~ ?'$ y ' - gJ i ' A.. 4 l d,,- ' ' l f.' - ' k T - 4 i e .l + j' '(C' O w _;);g;l';L > [?Q l f ? 2

-.. x r

+.i. pw,,w, n s 2 I I ~ g x . r n a' 7m L w m,. 4 m .'f ke)b :- n:g-t I t g ,g g q g j 1 _J# rr e s U i s J f 71 s [ g C .=i ,) a I T M T S, s J, j*. i s ,. 6 k

• [

i g (-' g 'r 4 t Y -,(,, h-s. g g 3 h} _ I A I, 1 r lj j .<), t - - '} q t y [ b.- s} p-g'm ys. ', ' *.= 1::' ^ q' n, t-s s .,h .Y 1 ,C ^c' a i0,4, J V#~' i g n. c k[t .'T / f M' e,,s% r.T., j. - f 1,O - 4 }- p - s a i i ! '/ n +r -( f ', ' g- ..)y.n t', f rs i -o p a,_ _ N .s .; g x .t' r. gti! L ,~2 4 r -; i;:t f. lhl3 x. 3.,L l, 1 i J i r - { n.( 1.,.,..-' I y -tt ,,-(. _...m ? j t .#.k 75.. y 7 i sf s 5,_ _.. - __c. o.g. >a t u

')

U - [ 1.,; 'f.r 1 j q-1j. --**Ii 9 '3. y n.g,, - [s:7=+ s-s 0 4 si i Q { M r j,; ..4 7. 1 6 (. t 8 n v. n. s:, .; c s. s 51 % di&Y : 5 5 9 y9 ,w,.

t. s; ng e

v- - m i e ~ ggg %r gc . STANK.PAGE1 ..L :. m_n 4 3 i f ~.. n,a 1 il !.,"..' ' ".:. p ( i ( p,~,.- ,/ a \\

)

x;;) 1 .o t (. s. t f/ 1 I f m 4 w,.= m. a ; y; -,. -. 3 $l$ d 1' ~, il m{ 'r'.,,n _f-w,. c.+"+ i ..J ^ y m..,x x W9

o. v i

.u., w<- kr - f4n a :t - 4 il&..Q.s, ,('- 1" ' - j 1 <d ~..<w. ~ -u _s. c q 4 t s e m e.. .3. %,s ,4',* F,. J.d ' ' '%.3 -y_'h .?. d = {A

• I T

5 g 4, W. _; e m?. % !; ' 5 f '. '

n.,.

- h,.,- f d , s, tm q- ,m. ~-, y h T o,. - 4 g. 7 ...< h k1 I ,t e '1'-g pT_.^

2. 5. g.,.

_ ? , s. .'.q._ ,Q{- \\ s ..,'q1 p,,, p, n' c I I. D ..d 3 y, >q..'r -m. o na'j . M,,;; I. s. i ' i/9 ? 4 i. e i i 1 4F /,

• AP-380' REV' 14 PAGE 50 of 55 ESA

.o 7 -l,. 1 i 1 a -4 d5 ' k;+ 's a ! y W , ~ae 4 < g.. [e.. ur'ygs i{ -d S. s

• -4 i

h I 5,r w-e-m m ....-.,,~v

.. - -. -.. - -. -. -... - -. - -. -. _ - ~ i RCP NPSH Curves E ~ i E ) O ~ ( 1 RCP 3 OPERATION g. .( 1/0,1/1,1/2 ) 5 3110 r g i + t l m l 2 RCP

e OPERATION l'

(2/0,2/2) SATURATION WEYE / \\. 0 M D D 4C0 i RC TEMP. Tg (

• F )

The acceptable region is above the applicable NPSH curve. AP-380 REV 14 PAGE 51 of 55 ESA

a.'j;,. ~ x .( - r b :v' E /1 ,y q ... e -Qy Q ;,b@'; h 4, m, v, J!W", A, e..,. ,{3 %' ) 3: is r s < .(

1. K s

e 5:: a6 & ' d _%, W 4' M W, @? pA i J u... um-J, e,, ' ... + :: u ~ - ~ s %..-% - + un m,

t,

=- - - m, s w n m, o a ,+ x; ' v.

n. x. w, n, m,,-,s - -

4m --, e v v ya m m~ a. n~ -.g-n e w m,~= p, o i / m-e + ,54 ct,; a- ~-; y-p -w n + > .e -

-a, -

m..-

rc t

m. 4

-y i i s f 4 rq -e ./".. n w.es,- s %yt st 1 ~. r s se i y#: .o-e 9 i. 3,.. s*,,k y

h..i 6

1 x.

( ;

y, 3 Q-s ? $4 ' y- ,=g -, h ', ' t., .10 ,( 1 4 .8 L4 I g g. d', 1 s l' S,_. k r d &.x - . 4 , n,,a. _ 1). , :4., .Q., t i '4 e p3 e-s 3 o. ,e o, g 4 Y I j l 2 ( 5' [ I + s g t , o s

m..

s 4, y,n, 4, ~u +, s... ,f, ; vL. a i + b_ v_ y xlw -y. + A y-.; .:t, wvon.. s y s r. ym, v, x-. '9 c, Q,, '

• Z.*3NN m=.

40 ,,g ' T z 1 r. x,, ~. m:. p) '.s ; ~p r - hf J ..l' g s 3 f c'

"a

' i

• i

,t"g' .< M n s

g.n[

e r ,,9 \\ T y,. ( I '!h,e ;. - - + > - / ? r,s - [.:~ I t.p. _-(,' ) f ' s,i s a ; i I

h

,'ra s .g,I. 7 fa' _s g j 9, ,,q& ' ' \\ 3", e i -r 4 s s .s. a

Q.

s b lC a t m m Q; l * - ~ ya s .y .q #.. f 9 ' g,p ;', J 1 I }iy '{ g i_ f 5s,k [ ( .t, i 1 ' g ]' g ,.,". _w. - n 4 ..b ,l 'i. i 'b 'q.,.. p ..y, 4 q' 3..- s, (.t.; $ ,= e .ylt* i .1 (- j - t0- ,- (.. i =m.< t - i i 3 r.' .4-s.1 ,j 3., 33 y; d ;, i 7 a

w

'3 a .y', - . 6,' t 3' J'

m41, s.

F --1 m %,n, 3. ,=a- =

. ~-

2, e u u 6 f' p s ,f +,. 1 ...~ c o y%,{+f {1,\\ U ~ . N a f ^\\ ,,_ 'i r 1 - o,_ ?,!, 'e nn f ' i. _ .t -gr --r T h - r, w E 'j5' gg .%y k cx, 1, i, \\ r -W: o '" 1[' u $,,,.. 9 '( t i 1-t 'f f ; $ " -.4 4 >i d f {3 'r s , ~ v. a, (h 3 6); L / ','.... g r - C-p t x. l y v . v.: -!-[ ff+ ..[- g4[ x' ", n r 1 i g 3_3 y,. d SU' ' -( ;,- >5 i g

m...

m, - m , w 8 , W ;:6 AJNFH BLANK PAGE t m ,t g% 4 a, i , 9 m.-,' r e I i ~._u. v 2.,t, 1 } ._'i ); ?3: c

ly' + *

%o j)'tn l ,:.t-d- ,g g g g " f' d' 3,r >9,, ,\\ j j< { 2 3 .c ff.* i m=. ',, A..p 7,., ~. - I i <6; ~j,.! '5/ -s \\- 91'e- - _'" E uagt ] q 4 ..s.

y.,2.

e~m.. ..w; .. c m, sf.,'i'.? - y N t .. h,k [hI [,' ! g m- 'k -- a h [- j I )

• r

~,c',. 3 c 'n.. ..? k '7-',, -...f* g'.lG.

• -t_,.

>Tf :t + p.__. x iy j h a$y:-,,p' 4',- i i pi ^ 5 4.%s e 'y y, s J -Q-41 ( p 3-.- g h. N.. ,1 M7 4 O M g.'

r. g w

4 Yq[w> 2 R6 J' e n a a. +h t. 1,p{? 1 .t 8 1 7

t-m&' g e@.1 y

r !Lr' -i h., n 9 m

it7,

-1., g

jr

.3.,,N' ' 'W 'i,. ) $+ hY .p',% f ; .s i ,.1 ,'r. + f g' 'i i

s. q.

^' 's~,.3I .:.,J..- [- ' []'hi,I 4

3. I,,[

,,s O1( w k4 ' 7,,'[m 4 ,i : ,n. r. n. x, Ufw , -3 ; r s 1 '[ ? .~,:. r r e ~{ =,e E $-), le -f j sw-M ,~ --4.,g '+ ~. i ~, W, VAp 380e REV 14 PAGE-52 of 55 ESA Sl 7 m' ._\\..i.'. 8 .i -. : [ = s u, eg,~r< -. 9 f. W f'j% q rq,- 3 >fbat 1 - gv+ _ y. s y .t.4.. 'j .P,. C, '@(J a =;.- n ..W.... 'fM

cNgru ;& q e z 4 " =,9 9rr m

j '* j ^( ~Y l'T ~

..o-s 19

c.

] Cooldown Curves-2600 = // D ADEGOATE SUBCOOLING EASGIN 2200 i / // 2000 NDT LIMIT 1800 1600 ) O o I" 1400 J 2, 2 BCPs / / f f 1200 < ' 2 SCPs, 1000 J 800 [S&TURATION CUR'1, 2 600 ' i' 400 i r ( 200 m J W 0 ... Illo 3b0 500

• m Mid.

RC TEMP. Tg(*F) 7 . Acceptable region is below and to the right of the NOT curve. ,- Acceptable region is above and to the left of the applicable Fuel Pin in Compression curve. - AcceptabP region is above and to the left of the adequate subcooling margin cu ve. AP-380 REV 14 PAGE 53 of 55 ESA

16 +. p: r.x .u., .f;, fr*j c, ~ 1:: 4 4 p: y, ;. .5 g np. ? h n . g je N . c ,$'+' 5 BLANK PAGE 1 a.. E f, '.\\' f . I ^. i 1 i -;(.; I . AP-380 REV' 14 PAGE 54 of 55 ESA i- : s

.w Natural Circulation Cooldown; Curve > 10*F/hr 1 J'amuu [ 2400 ADEWCATE SOBCf/) LING / MAkGIN / ,I 2200 i 2000 o-NDTLIMIT[ 1400 I )

• 1600 t

f l 5 l L - 1400 g Im<1200 L 7 o Natural / ,1 Circulation / l 3 1000 s'00 l / SATURATION / CORVE 600 / / / / 200 l. 0 4

100, 300

$00 RC TEMP (* F ) Acceptable region is below and to the right of the NDT curve. Acceptable region is above and to the left of the Natural Circulation curve. Acceptable region is above and to the left of the adequate subcooling margin curve. AP-380 REV 14 PAGE 55 of 55 ESA

{' 6;; 3 ~m-r sp ;O p;, ' .j' r ;.. Y

+

ICC' .REV 11 _0 ATE:10/31/89. EP-290-6 h,. INADEQUATE CORE COOLING j n ..1.0 : ENTRY CONDITIONS e L df incores indicate superheated conditions, g ItiMLuse this' procedure.- ,) v I i L: gu.c:= xc :.w w.sv..y;:,-e m x.,; =, ,. g ' j:,

t

.cs....;. 7 t ) Ni;Oi!EllTION.QHL}V[ g-C P. Nacisar u .i i l L L l L i ,-f m* 1 l l This Procedure Addresses Safety Related Components Approved by NOS VJk'beb Date [p_- 3/ _&9 EP-290 PAGE 1 of 33 ICC l

+ enpm _ e ..y, .. s :., b -.n - ;pf fi r !. ?...v'

p 3,,,.

s4 1 4 1 1 .-1 n BLANK'PAGE 3 9 4 s_ T ( EP-290 REV 11 PAGE 2 of 33 ICC

in y7 '4 ,4 I d' I" 2.0 IMMEDIATE ACTIONS. ACTIONS DETAILS v, ~ 2. l' Ensure full HPI-flow. I' Ensure MVP suctions from- -BWST are open: L o MUV-58z o MVV-73. ~ 2. Ensure at.least-2 MUPs are. ~ P operating. 3. Ensure all-available HPI; valves are open: o MVV-23 = o. MUV-24. o~ MUV-25 o ~MVV-26. 4. Ensure MVP recircs are closed: L o MUV-53 o MUV-257. 5. Verify HPI flows. 2.2.lE LPI is delivering -flow, 1. Ensure 2 DHPs are ldEH ensure full LPI flow. operating. 2. Verify full LPI flow. ex 2.3 Ensure OTSGs are at 95% level. 1. Ensure both trains of EFW are actuated. 2. Ensure 95% level setpoint is selected on both trains. 3. 1E OTSG levels are NHI at '+ 95%, THEN ensure > 125 gpm/0TSG EFW flow. EP-290 REV 11 PAGE 3 of 33 ICC

g v.

o...

g-r;. .u.. >: - : s ?. y 4m-._ e g t ar ' p, .' 5. .s s. s 6 L 4;, .1 (.' % s. [.', t ,5g 1 1 i 1 4-BLANK PAGE

i -.

4 h ) i 1 i t . i .,,"m 1 h t - I d l EP-290 REV 11 PAGE 4 of 33 ICC

E t q-' i 3.0 F0LLOW-UP' ACTIONS ACTIONS DETAILS 1 3.1 Ensure CFT isolat' ion Ensure open: valves are open. o CFV-5 o CFV-6. 3.1.1 Ensure RB isolation has Ensure RB isolation and cooling occurred on both ES trains. status lights are blue. CAUTION-jf. EFP-1 is NOT available, AND EFP-2 is NOT on AS, IBIB maintain OTSG PRESS > 100 psig, to ensure availability of EFP-2. 3.2 lE.EFP-1 is NOT Open: available, 1818 notify TB Operator to 'l ASV-18, AS isolation.from align AS to EFP-2. Units 1 and 2. 2 ASV-15, AS Hdr isolation to EFP-2. 3 Blowdown lines on AS.line drain trap. S 4 ASV-23, AS isolation to EFP-2. p 3.3 Maintain OTSG Tsat Lower OTSG PRESS using TBVs 100'F below Tsat for or ADVs. ~ existing RCS PRESS until > ?* OTSG heat removal is established. EP-290 REV 11 PAGE 5 of 33 ICC

n-. . : l..'

9' 1

B'.: ~ ' CAUTION il Lif EFP-1 is HQI"available', ~ laHD EFP-2'is HQI-on AS, IHEN maintain OTSG' PRESS:> 100 psig, to ensure availability-of.EFP-2. t q, j i ^;;. s .g hY <- eu ? EP-290 REV 11 PAGE 6 of 33 ICC

-f i + .s. 3.0~ FOLLOW-UP ACTIONS (CONT'D): ACTIONS DETAILS 44 '1E RCS PRESS reaches Depressurize RCS using PORV. 3 p 2300 psig, ~ 'IBEH'depressurize RCS to. 1E PORV fails to-close, + 100 psig'above OTSG PRESS. IBEN close RCV-II,:PORV block valve. IE PORV is HQI available, IBEN depressurize RCS using High-Point vents: RCV-157 RCV-158 4 RCV-163 RCV-164 -RCV-159 RCV-160. NOTE 1E HPI flow:is 2 200 gpm for any nozzle, as indicated on the narrow range HPI1 flow instrument located on Redundant Instrument

Panel, IEEH-use the wide range HPI flow instrument for that nozzle on ES Section of Main Control Board.

3.5. IE, at anytime while.

1. Reset LPI bistables:-

performing this procedure, LPI actuation is:present, RC4 in ACT, CHAN. CAB. #1 AND RCS-pressure is > 500 PSIG RC5 in ACT. CHAN. CAB. #2 IEEN:- RC6 in ACT. CHAN. CAB. #3 Stop both LPI pumps.

2. 1E HPI actuation is present, lHEN select the following to Go to Step 3.6 of this

" BYPASS" on both A and B HPI procedure. channels: "HPI RCl" "HPI RC2" "HPI RC3"

3. Throttle HPl valves to maintain equal flows on all 4 injection lines.

4. STOP DHP-1A and DHP-1B EP-290 REV 11 PAGE 7 of 33 ICC

n: 5, + y

q

c. :

+ CAUTION-R- 3 If EFP-1 is HQI available,. 4 AND EFP-2:is HQI on: AS' "lHEM maintain OTSG' PRESS:>-100 psig, .to ensure 1 availability of.EFP-2. w 1 ? .i W t k t ) L. 3 '3 4 EP-290 REV 11 PAGE 8 of 33 ICC b = m w-w a,

7e 7 b *' ' 3.0' F0LLOW-UP ACTIONS (CONT'D)- ACTIONS DETAILS 1 p. ~ . 3.5.1 11E; at anytime while -o' Ensure DHV-110 and it. performing this procedure, DHV-111 are. operating LPI actuation is'present, properly AND-RCS pressure is < 500 ~ PSIG j@D LPI flow is > 300 o Refer to OP-404~for DHP GPM / pump) run time limits IBlH: o Select the following to Ensure proper operation " BYPASS" on both A and B Bypass LPI actuation channels: Go to Step-3.6 of this "LPI RC4" procedure. "LPI RC5" "LPI RC6" i . i l t l t I $1 l EP-290 REV 11 PAGE 9 of 33 ICC

.n;;, -f l ls '- ?

n;

,,'vU:4'g,*********************************************************************** . CAUTION 'l %s, -lE EFP-1..is RQ1 availabler o 8HQ EFP 2 is HQI on AS,. ItiEN maintain OTSG PRESS > 100 psig, to ensure availability of EFP-2. l s s 5 f s ,f; ):. i t I

3,

<?

\\

i t t; i -, F ',i\\. k l.' \\ l' t-p i l. ~ EP-290' REV 11 PAGE 10 of 33 ICC u L i t

7 ~ l

V GW

- 3.0 F0LLOW-UP ACTIONS'(CONT'D) ~ ACTIONS DETAILS. 3.5.2 E, at' anytime while. o Select the following to ) -performing-this procedure, " BYPASS" on both A~and B. LPI actuation-is present channels: ~AND RCS. pressure is.< 500 PSIG. AND LPI flow is < 300 ."LPI RC4" GPM f pump' "LPI RC5" "LPI RC6" Bypass LPI actuations Increase LPI flow o To increase-LPI flow, Perform the following steps in order. 1. Ensure DHV-Il0 and DHV-111 are open. -E LPI flow is >300 GPM LHLN GO T0 step 3.6 4 l 2. Open the PORV o RCV-10. E LPI flow is 1 >300 GPM THEN GO T0 step 3.6' 3. Perform step 3.6 of this procedure, HPI suction from LPI.- IllLN RETURN TQ this g. t step. E LPI flow is . j,'i >300 GPM-THEN GO TO step 3.6 i; 4. Open the High Point vents. PZR vents: o RCV-159 h o RCV-160 Hot leg vents: o RCV-157 o RCV-158 o RCV-163 L o RCV-164 L l: G0 10 step 3.6 .EP-290 REV 11 PAGE 11 of 33 ICC l-

~ g ;.g ' = e .x.

n 1

g- .o - + s*********************************************************************** ~) f- . CAUTION-s ~ . n., 1JF EFP-1 is M1 available, MQ EFP-2 '.is MI on-AS,. JfiG maintain OTSG PRESS >'100 psig, .to ensure availability of EFP 2. + i .j

j. Q i.

5 i t I l i )) cg -y .t e f + (- s w: l. y, t t .t,

e H

1 m EP-290 REV 11 PAGE 12 of 33 100 p g s

1 3.0 F0LLOW-UP ACTIONS (CONT'D) ACTIONS DETAILS 3 ~ CAUTION Due to MVV-62 being normally closed, both DH trains are required to be in operation to ensure suction to all the MVPs. 3.6 If, at any time while 1 Ensure Open LPI suctions-performing this procedure, from BWST: j BWST level reaches 4 ft, i IBIH o DHV-34 o DHV-35. 1 Establish LPI suction 2 - Start DHP-1A and DHP-18. ~~" from BWST. 2 Establish HPl suction ~~~ Open HPl suctions from 3 LPl: i -- from LPl. o DHV-Il o DHV-12. 3 Notify AB Operator to energize DHV-3. 4 ___ Close HPl suctions from j BWST- -i o MUV-58 o MUV-73, i 5 Observe MVPs for signs of cavitation. 1 6 Energize DHV-3 at ES-MCC-3A1. 1 i i EP-290 REV 11 PAGE 13 of 33 ICC

p. ---

t 4 CAUTION-t' jdL EFP l' is HQI available, h AND EFP-2 is NDI on AS,.. L INEN maintain.0TSG PRESS > 100 psig, to ensureLavailability of-EFP 2. ,p 3.6 '1E'BWST level-reaches 4 ft, IDES: p 1. Establish LPI-suction from BWST, .i 2. Establish HPI suction from LPI,

3. ' Energize DHV-3.

F l I L -1 y I' i l l EP-290 REV 11 PAGE 14 of 33 ICC 1 1 L

y, m p ,D-- t 7% . 3,01 poLLow.UP ACTIONS (CONT'D) 1 i 1 ACTIONS QETAILS i ~ 3.7-1 Etat any time 1while' 'l Select BS control. valve - performing this procedure,- controllers to " LOCAL"- BWST level reaches 2.5 ft, L IHfH o BSV-3 o BSV-4, Select BS contro1~ valves-2 Verify RB sump level'of to " LOCAL". 1 1 ft. . Establish LPI: suction 3' Open LPlusuctions,from-from RB sump. RB sump: 1 Close NaOH tank outlet o DHV-42 o DHV-43 valves. 1 4 Close LPI suctions from the BWST: D,HV-34 o DHV-35 o s 5 ~~~ Ensure HPI suction from LPI. 6 'Close Na0H tank' outlets: o BSV-Il o BSV-12 3.8 Determine proper ICC region o Select SPDS to ICC curves based on incore TEMP and 'with incores selected. RCS PRESS. IE SPDS is HQI operable, ItifH Avg the 5 highest a incores TEMPS AND see Enclosure 1 for proper ICC region, o Refer to computer group 60 for incore TEMPS. ~ EP-290 REV 11 PAGE 15 of 33 ICC

6 n; 4 j L $: ~ -ccoco+ee ccceoooooooooooooococecococcocooooooooooecocoooooooooooooooooo FL CAUTION. + IE EFP-1 is HQI available,j 6.ND EFP-2 is HQI on AS,1 'IBEH maintain OTSG-PRESS >'100 psig, f to ensure availability of EFP-2. e L' 3.6' IE BWST level reaches 4 ft, IBEN: 1. Establish LPI suction from BWST, 2. Establish HPI suction from LPI, 3. Energize DHV-3. 3.7-lE BWST level reaches 2.5 ft, . IBEN: - o Select BS control valves to " LOCAL", o, Establish LPI suction from RB sump, o Close Na0H tank outlet valves. 't s h\\',

)$)

4 Bd 7: EP-290 REV 11 PAGE 16 of 33 ICC

'4. ' li? 3.0 FOLLOW-UPACTIONS(CONT'D) ACTIONS DETAILS CAUTION Do HQI revert to the actions for the less severe ICC region-unless directed by this procedure to ensure core cooling is maintained. 3.9 lE, at any time while performing this procedure, incore TEMPS. increase to region 3, IBfB GO TO Step 3.15 in this procedure. 3.10

IE, at any time while performing this procedure, incore TEMPS increase to Region 4, IF.EH GO TO Step.3.24 in this procedure.

9 3.11 1E incore TEMPS are in -region-1 or 2, IBIN maintain:' Full HPI flow, Full LPI flow if available, OTSGs at 95% level, RCS PRESS < 2300 psig, OTSG Tsat 100*F below Tsat for existing RCS PRESS. EP-290 REV 11 PAGE 17 of 33 ICC

il ? 'S,' 4. ? e CAUTION-l r 'lE EFP 1 is HQI available, .aND EFP-2 is NOT on AS, IBEN maintain 0TSG PRESS > 100 psig, to ensure availability of EFP 2. 3.6 If BWST level reaches 4 ft, IdfH: 1. Establish LPI suction from BWST, 2.- Establish HPI suction from LPI, 3. Energize DHV-3. 3.7 -1E BWST level' reaches 2.5 ft, THEN: o-Select BS control valves to " LOCAL", o Establish'LPI suction from RB sump, o Close Na0H tank outlet valves. 3.9 IE~incore TEMPS increase to region 3, 1818 GO TO Step 3.15. 3.10 IE incore-TEMPS increase to. region 4, .,,o IBfB GO TO Step 3.24. I ( EP-290 REV 11 PAGE 18 of 33 ICC

UT e- '3.lf FOLLOW-UP ACTIONS (CONT'D) i, ' ACTIONS: . DETAILS L3.12 '1E incore TEMPS enters-M region 1, E AND RCPs are running, IBEH establish 1 RCP/ loop operating. g 3.13 Maintain _ full HPI Adequate Subcooling Margin flow until adequate subcooling margin is: RCS PRESS MARGIN established. > 1500 psi 9 2 20*F 1 1500 psig~ 2 50'F 89Lt if incore TEMPS have been in region 3, IEIN high point vents should. remain open until adequate subcooling . margin or DHR is established. 3.14 WHEN adequate subcooling margin'is established, IBEN: 1 Ensure all high point Ensure closed: vents are closed, i RCV-157 RCV-158 2 GO TO AP-380, ES -Actuation, beginning RCV-159 RCV-160 with step ~3.3. ___ RCV-163 RCV-164. e EP-290 REV 11 PAGE 19 of 33 ICC e

l. i r - j. 1- .[AUTION a- -t juE EFP-1 is HQI available, j AND EFP-2 is HQI on AS, .lBEN maintain OTSG PRESS > 100 psig,. to ensure availability of EFP-2. 3.6 1E BWST level reaches 4 ft, i IEEN: 1. Establish LPI suction from BWST, 2. Establish HPI ' suction from LPI,. 3. Energize DHV-3. 3.7 IE BWST level reaches 2.5 ft, IBEN: o Select BS control valves to " LOCAL", o Establish LPI suction from RB sump, o Close NaOH tank outlet valves. 3.10 If incore TEMPS increase to region 4, IHEN GO TO Step 3.24. ~ i EP-290 REV 11 PAGE 20 of 33 ICC

e, 3.0- FOLLOW-UP ACTIONS (CONT'D) l l ACTIONS Q[I/E 891k-l I The following steps are for incore TEMPS in region 3. -3.15 If RCPs are available, o RCPs are available when RCP' =IEEN start 1 RCP/ loop-start permissives are met. AND manually control-0TSG levels at 95%. o Select all"4 EFIC control. valves to manual and control level at 95%. 3.16 Maintain OTSG Tsat 100*F Lower OTSG PRESS using TBVs below Tsat for existing or ADVs. RC PRESS until OTSG Heat removal is established, i 3.17 Open all high point vents. Open: RCV-157 RCV 158 RCV-159-RCV-160 RCV-163 RCV-164. 3.18-Notify Chemistry to begin Notify Chemistry to refer to monitoring'RB atmosphere EM-308, Post Accident' Sampling H2 level, of the RB Atmosphere. EP-290 REV 11 PAGE 21 of 33 ICC

63 3 ,,6;- 1 CAUTION' 1 IE EFP-1 is NQI'available, i AND EFP-2 is NOT on AS, i 181H maintain OTSG PRESS > 100 psig, to ensure availability of EFP-2. 3.6 If BWST: level reaches 4 ft, IBIN: I 1. Establish LPI suction from BWST, 2. Establish HPI suction from LPI, 3. Energize DHV-3. j l c 3.7 If BWST level reaches 2.5 ft, IDEU: o Select BS control vaIves to " LOCAL", o Establish LPI suction from RB sump, o Close Na0H tank outlet valves. 3.10' If incore TEMPS increase to region 4, 1818 GO TO Step 3.24. + I( i; l-l 1:, l EP-290 REV 11 PAGE 22 of 33 ICC l

6 4 3.0 FOLLOW.UP ACTIONS (CONT'D) ACTIONS-DETAILS 4 3.19 Determine if OTSG heat. Indications of heat removal removal is established. arei o o OTSG remain-pressurized while'being steamed-o incores lower when OTSG PRESS--is lowered. f 3.20 lE OTSG heat. removal is- ~3 NDI established, ltiEN open PORV -AMD maintain OTSG Tsat - 100'F below RCS Tsat. 3.21-IE: 0TSG heat removal is Regulate RCS PRESS using PORV, established,. IllEN regulate RCS PRESS at 3 25 to 50 psig above 1 OTSG PRESS. 3'22 IE RCS: PRESS and TEMP remain in Region 3, ItiEH maintaint l'RCP/ loop operating, All high point vents open, M m, lE OTSG heat removal exists, ItiEN maintain RCS PRESS "^ 25 to 50 psig above OTSG PRESS, 4 ) 1E OTSG heat removal does ? NDI exist,- .I L IliEN maintain PORV open, l-AND maintain 0TSG Tsat lL 100'F below RCS Tsat. EP-290 REV 11 PAGE 23 of 33 ICC l I

? f P< L hU ocoocooecoccoscooooooooooooooooooooooooeccooooooooooooooooooooooo**oeoo.

CAUTION

~ IE EFP-1 is HQI available, AND EFP-2 is HQI on AS, IHEN maintain 01SG PRESS > 100 psig, l: to ensure availability of EFP-2.

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • ww************

v. e 3.6: 1E BWST level reaches 4 ft, Infli: 1. Establish LPI suction from BWST, 3-2. Establish HPl suction from LPI, 3.- Energize DHV-3. 1 3.7 IE BwSr level reaches 2.5 ft, ItiEB:- o' Select BS control valves to " LOCAL", -o Establish LPI suction from RB sump, o. Close Na0H tank outlet valves. f

w EP-290 REV 11 PAGE 24 of 33 ICC

1 ~' 3;0 ' FOLLOW-UP ACTIONS (CONT'D) J l ACTIONS DETAIL.S. k E012 H subcooled Nat Circ is established, E the PZR vents should be used'to depressurize the RCS to ensure a slow rate of depressurization. -3.23' H incore TEMPS enter See Enclosure 1 for ICC regions. -region 2,- M GO T0 Step 3.11 in this procedure. o E912 The following steps are for incore TEMPS in region 4.

y 3.24

'H incore TEMPS enter Ensure Open: region 4, .i M ensure PORV is open, RCV-10 RCV-Il E all RCS high point vents are open. RCV-157 RCV-158 RCV-159 _ RCV-160 RCV-163' _ RCV-164. i 3.25 E RCP-power is available, Bypass start permissives using ~ M bypass RCP start key 36 in the SS00 key locker. ~g. permissives, E start all RCPs, -3.26 Manually control 0TSG Select all 4 EFIC control levels at 95%. valves to manual. EP-290 REV 11 PAGE 25 of 33 ICC

4 .... x.. cc. 3:=co m ece :::c..c= :ccco:::cco :::::cacco2 conecocoo33 CAUTION If EFP-1 is NOI available. AND EFP 2 is HQI on AS, Ibid maintain 01SG PRESS > 100 psig, to ensure availability of EFP 2. i 3.6 If BWST level reaches 4 ft, IHf8: 1. Establish LPI suction from BWST, 2. Establish HPI suction from LPI, 3. Energize DHV 3, 3 i 3.7 If BWST level reaches 2.5 ft, 1818: o Select BS control valves to " LOCAL", o Establish LPI suction from RB sump, o Close NaOH tank outlet valves. 6

r '

l EP-290 REV 11 PAGE 26 of 33 10C 1 I l l'

c o 8 I0-- 3.0 FOLLOW-UP ACTIONS (CONT'D) i ACTIONS pETAILS l t I t 3.27 Lower OTSG PRESS to Ensure open: Atmospheric PRESS. o TBVs o ADVs L lid 12 CFT and LPI flows may be cyclic at first, due to water flashing to steam when it contacts the dry core. 3.28 Continue to lower RCS Ensure open: PRESS to allow CFT and LPI to restore core cooling. __ RCV-10 ,_ RCV-ll __, RCV 157 RCV 158 _ RCV 159 RCV 160 RCV-163 RCV-164. 3.29 Mli[fi incore TEMPS become saturated, Iliffi reduce operating RCPs to 1/ loop. l l~ l 1 EP-290 REV 11 PAGE 27 of 33 ICC l l'

s I ce* oce*ococatococccocoooooooooo:coccc.*:ocooecococoooooooooooooooooooo CAUTION j If EFP-1 is 801 available, AND EFP-2 is HQI on AS, IEEN maintain OTSG PRESS > 100 psig, I to ensure availability of EFP 2. i 3.6 If BWST level reaches 4 ft, IBIB: 1. Establish LPI suction from BWST, t 2. Establish HPI suction from LPI, 3. Energize DHV-3, 3.7 IE BWS1 level reaches 2.5 ft, IB18: o Select BS control valves to " LOCAL", [ o Establish LPI suction from RB sump, o Close NaOH tank outlet valves. L L L I EP 290 REV 11 PAGE 28 of 33 100 l

= 7 o ' 3.0 FOLLOW-UP ACTIONS (CONT'0) l 4-ACTIONS DETAILS 3.30 H. RCS PRESS is s 150 psig, o Close: M close all RCS high point vents, RCV 157. RCV-158 E maintain RCS PRESS RCV-160 < 150 psig. RCV 159 'RCV-163 RCV-164. 4 ( o Maintain RCS PRESS s 150 psig by opening and closing the PORV. E PORV fails to close, M close RCV-II. 6 E maintain RCS PRESS using PZR vents. 3.31 Maintain OTSGs at atmospheric PRESS, and at 95% level. 3.32 M LPI flow is established at i 1000 gpm/ injection line for 20 min, M: Stop all RCPs, g Isolate CFTs, Close CFV;5 and CFV 6. Select PORV to " LOW RANGE", j Stop all HPl. Stop all MVPs. Close HPl valves: MUV 23 MVV-24 MVV-25 MVV 26. EP-290 REV 11 PAGE 29 of 33 100 l 4

,-[g 4,,;. ; .g p',,. r, n,.i - w N,. e_s.,..w gt. 6 .N -j,; t T.y j p ;N I = n0 gw r.y $ n; m& gg@a t # w t[p p .m 4 ' t J r. ..g .. ; ; r -3 %y [g.i m m,p e.> .. u .5, t O. ud. i a,.- ,s j 4m>is s - m ..s 4 q -, q, i y%,w - & , y;g' e.w.c. c y-4. ac' 4, -6 t a,. m. x . g [,,., t '-s 4

1. . _n n

2 ,e i ,m .m.3.. _f f i_ s vm ' m c. v, i t em. 4 r .p c w. r.p 1.- ' j.'.' 5 - f ; /. , L. i f IpG [lk j 9g - <y t g s e. s, y d[ i,..e3._.~.E..y N h,4,... ('a._2 j[)t. i,..,q ,a2 . ~.z.. w 3 Y.;a ._o ..' Q. t t . ; p. a s... -y r y- ..a 99'0D 4 hyg I f. f, e t ' * ]n..1' 3 s j 2 i t A,' 'z! F n -, 7 'f d7 ' 4 pn e-s f) t- .w. -is ..i. e - -M e r P s !-.- 3 p$3 4 <, 7, %;3 ,S 4 'j, k, mmc M.D. %$e,k;! -4 h -%s[ yJ ,N ' d.

h. ' "-

^ ?! 1 ., c :, s yl[ ' '3 .4 4 U q +

n..g. j+g*4:o ;s m

,s.< 3 i .gy .. _; s I m ^~a 1 -s gy Ed. "- - 8, ' iU. ~. ? cN E 23-l '*' S s b d 4 N i. ~ ~d.s c ? a ;t g O i?.. se .q.

.s

>g -.-p< Wit-, w' ' u.

9 t -n. g.

m '.y M n pW s ,..y-t s.- r 5 e ^ ?. 6 >.,j'i -; f. 'u 4m = s. in ., : C kg.. h '.cr,; .,%n' 1. _qg ' y, i, i ?M/j. .y..' C yl. y. 1 ,, - v. s ewy,,w m,, e wys r .o w,r _<m ,~ c 1 "^ -T^, ,t-b;.A .E.'* i + 4> 1, il :... 2,,, s j ;; j., e ,m r2 Gi,~ a .n Q f y. XQf N_d 17 5 g nm s. o .. is - I$', .t ,. 4. c. ;y ' ' 4'vf's-: \\' p ' ' ' 'vV, e hI N o'. - /'d il. .)' t $ f )ti;'g,q' .,>a c a .p. xy@d'.g... : J ~ 'm m. + m...' s. w;c 4p e 9.c-4 1 t i it-- ,J 5 . 2N 4.O c .'wj~^Q p.Q:.1@4 '"'4+ I r 3 s, f '.N.', r 6 wy , ' ' ' n., x,'( i t.? - ue. x ., _u, +1 9,. jag o: u _. c)zg pa y; * +vw e,. w, + .m ^ ll D W+ v :M' iW , + .(; 'E P c ..5 w;u. 'a- .:rt; S .t a I s g ~ 9 *,5 c, y-

r, ~a '

5 t

n o @' f M g 1 + t 4 a, ~- i, w 4 .. 3 L:. -t m

py

,. i - x t v e r.hq aV'.N.vt. ,$~...' 4 y y 1, d h

c s.

7.e. ' o ,.a.; 1 i ..i. t ',3..n y 8 a i o. .ff.'- ev _4 rj:.. g ), k.. {- 3' - 7.k' 5 & ( 5'..-[,-m. 4 - 4.i I t-8 \\ 5: i .$.f'g 5 4au v.{v

I=

7 ', [.(l. i M,,. -{sw -;k' + 1 .,i t t v.. ) l 9 ";.q y'o,, y' 7 g pg. , ' b' T h' .S 3 3 ~ jI s 's V., -Et. kW m. 1 , W e .-,m s u.;%m.. ~

m. - i i

t mm g 'r-I g m, e, x t 23 e i. t y -[ h,, L M,1 J BLANK PAGE. ' i w.m %y w-sn c. [ .,,+.j, - w' kuh m,- 29. - s .M.,'.' ' f -[... '> -[' -r^ _-}. _i i t t L 4 4 3 l 7.'f' ) g hm:,.J s 1 + &n. 4 -m; /.%, <m+_ h r'

v.,

n.,

, 3 3 a(p,

't.

- 4et '. n s ."su.; S' h,' ! r' f m'e 4l j.. O . V 3 .,y j 5 *-y .,{}~~ ,q;,. s- = t 2 ~h I~', Y e i O,fih ?h i".p W; s b - .'I e '+ a. ..p.. i 1 a r v J _.. m + ~ ~l jl [fi' W j '.- r n$g. 4, i G{m ;.any> > t n Q n 7 ng.7 pa p y . g. - ' 36 .,' 4 { Q:7 rt I u 5 wr.) _bm g']I k y NVN ' < v ~ ijj p #;k vf _ y + e ; >-q W, k i NM .+t, t > e g ;. m.,. s - / - ; w r r m'p[y T. [ E f-k~~ au .Y-J J.l . - 5 w'+ ','s.. 'y Q, _ ? $ ', i (p',-; *y t'1; pa L .w. _c,i' e;., _e ? m{ L-v@A s t

y d

i n & I \\ p _ 3 .c y.- p' SP. h4.'. ic.@: q 9 b,- a x s s q-F g y' . w.,, w 'Lc - EP.290 .REV l11 PAGE 30 of 33 ICC ad. ~.~Y'?' b1 '

• 1,.

y d _ 4' g L -- t 5 4 I. , m -f b qep % qQP 3d; s a _s.t y 4 3 b-fy, q f[ a -,?M. *: .s ( p; % a n;m

~ 3.0 FOLLOW-UP ACTIONS (CONT'D) ACTIONS DETAILS CAUTION Do not establish a flow path in any system isolated by ES without a prior review of the potential release of radioactive

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • gasorliquid.

3.33 GO TO OP-404, DHR System, Section 4.13, for long term core cooling guidance. i t 4 I t EP-290 REV 11 PAGE 31 of 33 ICC L

t,' t 9 I J d b r I BLANK.PAGE . i.. M ', I f EP 290 REV 11 PAGE 32 of 33 100

.i Inadequate Core Cooling Regions based on Incore TEMPS \\ 2600 r l 2400 Saturation Curve 2200 2000 REGION 1 T-elad > 1400 / REGION ~ 2 I 1600 7 E / ,] '400 7

• 1 REGION 3

. clad > 1800

200 b

1000 / / 806 REGION 4 I 600 g / / / 200 400 600 800 1000 1200 i INCORE TEMP (e F) EP-290 REV 11 PAGE 33 of 33 ICC - -}}