ML20058E876

Rev 56 to AOP Bwoa PRI-10, Loss of Rh Cooling Unit 1

ML20058E876
Person / Time
Site:	Dresden, Braidwood
Issue date:	11/18/1991
From:	COMMONWEALTH EDISON CO.
To:
Shared Package
ML20058E782	List: ML20058E779 ML20058E835 ML20058E860 ML20058E868 ML20058E875 ML20058E876
References
1BWOA-PRI-10, NUDOCS 9312070211
Download: ML20058E876 (62)

Text

.

4-a REY. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 A.

PURPOSE

~

This procedure provides actions required to restore RH System cooling in the event RH System cooling is lost during Modes 4, 5, or 6.

B.

SYMPTOMS OR ENTRY CONDITIONS i

2

1. The following annunciators may cause entry into this procedure:

o RH PUMP TRIP - alarm o

RH PUMP 1A(B) DSCH PRESS HIGH - alarm o

RH PUMP 1A(B) DSCH PRESS LOW - alarm o

RH PUMP 1A(B) CC FLOW LOW - alarm j

o RH EX CC WTR FLOW HIGH LOW - alarm o RCS SYSTEM COLD PRESS HIGH - alarm

{

o RCS PRESS HIGH AT LOW TEMP - alarm o

CC PUMP TRIP - alarm o

CC SURGE TANK LEVEL HIGH LOW - alarm I

o CC PUMP DSCH PRESS LOW - alarm o

REACTOR VESSEL LEVEL LOW - alarm 5

2. The following symptoms may cause entry into this procedure:

o Oscillating RH pump amps.

I o

Fluctuating RH Pump dsch pressure.

o Excessive RH Pump noise or vibration.

o Fluctuating Letdown Flow when on RH Letdown.

o Decreasing Reactor vessel level o

Increasing RCS temperature.

o Increasing RH system temperature.

3. This procedure may be entered from:

o 1BwrR-C.3, RESPONSE TO SATURATED CORE COOLING, Step 1.

o Inability to reduce RCS temperature while' shutdown, o

Loss of RH System while operating in Modes 4, 5, or 6.

I i

APPROVED Page 1 of 62 NOV 181991 (0192Q/0018Q/030791) oY$!7sview 9312070211 931130 n[i i.

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i REV. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 I

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STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED j

CAUTION Changes in RCS pressure could result in inaccuracies in RCS level readings.

4 CAVTION Any dilution of the R'S should be stopped until RHR Flo has been re-established.

liQIE With this procedure in effect.

notify the Station Director who will

• evaluate for GSEP conditions per BwZP 200-1, BRWD EMERGENCY ACTION LEVELS.

1 CHECK RH SYSTEM OPERATION:

a. Verify 1A or 1B RH

a. GO TO Step 2.

pump run light - LII Step continued on next page APPROVED Page 2 of 62 (0192Q/0018Q/030791) samowooo OH-SITE REYtEW

l

.!a 1

I REV. 56 LOSS OF RH COOLING UNIT 1 1BWOA 1

PRI-10 1

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

1 Step 1 (continued)

b. Verify operating RH pump

b. Attempt to stabilize RH parameters - SIAHLE:

system operation as follows:

RH letdown flow l

Reduce RH pump flow.

l i

Increase RCS level by RH pump amps

)

increasing charging flow RH disch pressure and/or reducing letdown flow.

RH disch flow t

IE RH pump paramete"s do Reactor Vessel level not stabilize, THEN trip the affected RH RH pump noise / vibration pump and GO TO Step 3.

9

c. Verify RCS temperature -

c. Verify sufficient flow STABLE OR DECREASING through RH HX.

1) Verify proper operation of RH flow control valves:

o 1RH606/618 l

~

o 1RH607/619

2) Verify sufficient CC l

flow through RH HX.

IE CC system is adversely affecting RH HX operation, IEEH GO TO 1Bw0A PRI-6, COMPONENT COOLING MALFUNCTION,while continuing with this l

procedure at Step 2.

l

d. RETURN TO procedure and step in effect APPROVED um,.

e-

.mm, Page 3 of 62 (0192Q/0018Q/030791) sy,Ajowooo M

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REV. 56 LOSS OF RH COOLING UNIT 1 IBWOA PRI-10 l

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

i 2

VERIFY POWER TO 4KV ESF BUSES:

I

a. ESF Buses - BOTH ENERGIZED:

a. Restore power to the affected ESF bus per SE Bus 141 bus alive light - LII direction, while continuing Bus 142 bus alive light - LII with this procedure.

3 CHECK RH SYSTEM STATUS

• i

a. RH hot leg suction valves -

a. Manually open RH suction OPEN:

valves as required:

o 1RH8701A and B o

1RH8701A and B i

o IRH8702A and B o

1RH8702A and B l

b. RH System - IliTAC_I:

b. Isolate any leak.

At SE discretion, check for leaks 4

CHECK RCS CONDITIONS:

a. RCS Wide Range Pressure -

a. Decrease RCS pressure to LESS THAN 360 PSIG:

less than 360 PSIG:

1PI-403 o

Solid Plant - Throttle 1PI-405 letdown and charging as i

necessary to reduce RCS pressure.

o Pzr Bubble - Manually initiate pressurizer spray to reduce RCS pressure:

4 o

1RY455B o

1RY455C o

1CV8145 II either pressure instrument has failed, l

IEli TO TO ATTACHMElfr B (page 32).

Step continued on next page APPROVED

...._m Page 4 of 62 (0192Q/0018Q/030791) eariowooo ON SITE REYlEW

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REV. 56 LOSS OF RH COOLING UNIT 1 IBWOA PRI-10 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED i

i Step 4 (continued)

b. RCS level:

b. GO TO Attachment A (page 12).

o RVLIS - AI_LEAST 37%

Plenum Region 1

-OR-o ILI-RYO46 RV HL LEVEL -

GEEATER THAN l

OR EOUAL TO 393'6" i

-OR-o ILI-RYO49, RV HL LEVEL -

GEEATER THAN OR EOUAL TO 393'6"

-OR-o Tygon level indication -

GREATER THAN OR EQUAL TO 393'6"

~

5 CBECK RH SYSTEM STATUS:

L

a. RH hot leg suction valves -

a. Manually open RH suction QP.EH:

valves as required:

l o

1RH8701A and B o

1RH8701A and B o

1RH8702A and B o

1RH8702A and B

b. RH System - INTACT:

b. Isolate any leak.

At SE discretion, check for leaks i

2 APPROVED i

unu 1 R 1001 Page 5 of 62 (0192Q/0018Q/030791)

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REV. 56 LOSS OF RH COOLING UNIT 1 IBWOA i

PRI-10 STEP l ACTl0N/ EXPECTED RESPONSE l RESPONSE NOT OBTAINED l

CAHIl0B Starting redundant RH train prior to determining the cause of the failure i

of the first train may cause a failure of the redundant RH train, j

1 6

ESTAB_ISH RCS C00_ING WITH IE redundant RH train is HQI REDUNJANT RH TRAI 4:

available, INEN attempt to restart the RH

a. Establish RCS cooling per train previously in service.

l Bw0P RH-6. PLACING THE RH SYSTEM IN SHUTDOWN COOLING II neither RH train can be

restored, IHEH continue attempts to restore either RH train, and Go To Step 8.

i 7

CHECK RCS CONDITIONS:

i

a. Verify RCS temperature -

a. GO TO Step 8.

i STABLE OR DECREASING

~

b. Verify RCS level -

b. Recover RCS level per GREATER THAN 393'6" ATTACHMENT A (page 12).

l

c. RETURN TO procedure and step i

in effect 8

TINUE ATTEMPTS TO RESTORE H

00 LING:

I

a. At SE discretion, evacuate all personnel from Unit 1 containment l

l Step continued on next page j

I i

~

APPROVED i

kinU 1 O gone

^ ~ ~ "

Page 6 of 62 (0192Q/0018Q/030791) 8?ggyg??,

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LOSS OF RH COOLING UNIT 1 1BWOA l

t REV. 56 l

PRI-10 i

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

Step 8 (continued)

b. Continue with this procedure at step 9, IE at anytime an RH train becomes l

available, THEN:

1

1) Immediately align the RH train for RCS cooling per Bw0P RH-6, PLACING THE RH SYSTEM IN SHUTDOWN COOLING l

2) RETURN TO Step 7 of this procedure 9

SEllECT APPLICGLE ATTJGMENI TO ESTABLISH RCS COOLING:

a. Refer to Table A (page 8) to determine applicable cooling method:

o Bleed and Feed Using Excess Letdown through Loop Drains and Normal Charging -

ATTACEMENT C (page 33)

~

i o

Steaming Intact /Non-isolated l

SGs - ATTACEMENT D (page 38) o Bleed and Feed Using P:r PORVs and Normal Charging -

ATTACHMENT E (page 45)

~

o Refuel Cavity to Fuel Fool Cooling -

ATTACHMENT F (page 50) o SI Pump Hot Leg Injection -

ATTACHMENT G (page 54) o Accumulator Injection -

ATTACHMENT H (page 58)

~

o Inventory Addition via RWST -

ATTACHMENT I (page 61)

-END-APPROVED

""' 1 l

Page 7 of 62 l

(0192Q/0018Q/030791) samowooo ON Sf7E REVIEW

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REV. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 l

i l

4 IABLE A (pagg_1_of lY~'

DETERMINATION OF EFFECTIVE RCS COOLING METHODS j

NODE MODE MODE COOLING 4

5 6

METHOD NORMAL w/ hot RCS is REFUEL HEAD w/ hot RCS is Configu side adverse 4 FLOODED OFF side adverse 4 ration vent 3 vent 3 i

ATTACHMENT i

C yes yes yes yes yes yes yes yes 4

(page 33) j ATTACHMENT 1

D yes yes N/A yes N/A N/A N/A yes

)

(page 38) i ATTACHMENT E

yes yes N/A yes N/A N/A N/A yes

]

d

_1page 45)

ATTACHMENT 2

F N/A N/A N/A N/A yes yes N/A N/A (page 50)

ATTACHMENT 1

1 l

G yes yes yes yes yes yes yes yes (page 54)

ATTACHMENT H

yes yes yes yes yes yes yes yes' (page 58)

ATTACHMENT I-N/A yes yes yes yes yes-yes yes t

(page 61) 1.

SI pump hot leg injection must be initiated as the primary means of RCS cooling and inventory control.

Other methods may be used in conjunction with ATTACMENT G but not in place of it.

2.

May be used as a cooling method if the boot seal is inflated and refueling cavity is being filled.

3.

Ref er to FIGURE IBw0A PRI-10-2 (page 10) for an acceptable hot side vent path.

4.

The RCS is ADVERSE if AL1,of the following exist:

a.

The RCS is liQI intact (any openings) M b.

An acceptable RCS hot side vent path is liQI established M c.

ALL RCS loops are blocked (loop stops closed or hot leg nozzle dams are installed)

APPROVED (0192Q/0018Q/030791)

BRAIDWOOD

~

ON-SITE REVIEW

.~.

~.. -. - -.

,a REY. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 r

j 2

)

j 8

i TRCS = 100*F TRCS = 140 F 20.0 M

18.0 1

/

/

16.0 f

55

[

l s = 4.0

/

\\

b,g 1

/

]

e *12.0

/

gg f

/

i 4,:

e "10.0 U%

Eg l

38.0

~,-

y g i~ b

.0 6

4.0 40.0 60.0 80.0 100.0 120.0 140.0 160.0 180.0 200.0 1

Timi After Shutdown thes) i FIGURE 1Bw0A PRI 10-1 Time to Reach Saturation Following a Loss of-RER at Mid-Loop

^ ^ " " ^ 'f i r (0192Q/0018Q/030791)

NOV 181991 BRAIDWOOD ON-SITE StEVIEW

i REV. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 i

1 1

ll-

\\

J Tges = 100*F TRCS = 140*F l

i 35.0 r

l l

2 SAFETIES /

3, f, s 4

NOT I

ACCEPTABLE l

25.0

(

/

E 3 SAFETIES /'/

r M

18.3 4

x 15.0 m

h

/

/

ACCEPTABLE rz 10'0 W

[- - PZR MANWAY

a. s 5.0 f

I j

0.0

l 0.0 100.0 200.0 300.0 400.0 500.0 600.0 700.0 800.0 900.0 TIME AFTER SitlT00lm OftSi

' FIGURE IBw0A PRI 10-2 Vent' Path Required to Prevent RCS Pressurization APPROVED

)

Page 10 of 62 NOV 181991 (0192Q/0018Q/030791)

BRAIDWOOD on. sits arveEW

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-=-

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i REY. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 2

1.

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i w

.., ~.

=

=

see

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1 i

X

)

e l

x 400

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l N

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m E

O.

s a

m 300

(

l v

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1 F-q s

s oc x

2ea

's 3

l -

o q

x m

1 N

I i

x r

100-(

j s

,e Imm i

't-l g-a la saa isas teses TIME (Minutes)

FIG 71RE IBw0A PRI 10-3 Required Charging Flow vs Time From Shutdown I

ADDROVED NOV 181991 (0192Q/0018Q/030791)

BRAIDWOOD

ONaSITE IttveEw I

,m..

,.....m.

1 i

ll REV. 56 LOSS OF RH COOLING UNIT 1 IBw0A 1

PRI-10 STEP ACTION / EXPECTED RESPONSE ]

l RESPONSE NOT OBTAINED l

ATTACHMENT _A__Qage 1 of 20)

RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS i

1 CHECK IE RH PUMPS SHOULD BE ST6PPE):

a. RH pump - ANY RUNNUlG

a. GO TO Step 2.

b. RCS level:

b. Stop the RH Pumps and GO TO Step 2.

o RVLIS plenum region -

GREATER THAN OR EQUAL TO 37%

j -

-OR-o ILI-RYO46 RV EL LEVEL -

GREATER THAN OR EOUAL TO 393'6"

-OR-j,

o lLI-RYO49 RV HL LEVEL -

GREATER THAN OR EOUAL TO 393'6"

-OR-o Tygon level indication -

GREATER THAN OR EQUAL to 393'6"

c. RH Flow - LESS THAN 3000 gpm

c. Reduce RH Flow to less than or equal to 3000 gpm.

i

d. RH pumps - NOT CAVITATING

d. IE the RH Pumps continue to cavitate with adequate RCS

{

level, THEN stop the RH Pumps and GO TO Step 2.

e. RETURN TO procedure and step in effect APPROVED Page 12 of 62 NOV 181991 (0192Q/0018Q/030791)

A".W Tv7.

ii REV. 56 LOSS OF RH COOLING UNIT 1 IBWOA PRI-10 4

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

ATTACIMENT A (Page 2 of 201 RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS 2

ISQLATi_ LETDOWN AND KNOWN DRAIN

)ATHS:

i

a. Verify /Close letdown orifice isol valves:

I ICV 8149A ICV 8149B

(

1CV8149C

b. Verify /Close RH to CV Ltdwn Flow Cont Viv:

1CV128

c. Verify /Close RC Loop Drn Vlvs:

l 1RC8037A 1RC8037B 1RC8037C 4

~

1RC8037D 3

DETERMINE TIME TO RCS BOILING:

i

a. Time to core saturation -

a. GO TO Step 4.

Observe I

LESS THAN 5 MINUTES per CAUTION prior to Step 4.

FIGURE IBw0A PRI 10-1,

)

(page 9) j

b. GO TO Step 13 APPROVED i

NOV 181991 (0192Q/0018Q/030791)

~

S"$EEv??w

s i

REV. 56 LOSS OF RH COOLING UNIT 1 IBw0A PRI-10 4

d 1 -

STEP ACTION / EXPECTED RESPONSE l RESPONSE NOT OBTAINED l

ATTACHMENT A (Page 3 of 20)

~

RH RECOVERY WHILE AT REDUCED j

INVENTORY CONDITIONS i

1 i

CAUIIDJi Personnel working in containment should be warned prior to refilling.

the RCS to avoid inadvertent contamination of personnel working near RCS openings.

l 4

CHECK RCS LEVEL:

a. RCS level:

a. GO TO Step 9.

o RVLIS plenum region - LESS THAN 377.

-OR-o ILI-RYO46, RV HL LEVEL -

i LESS THAN 393'6" l

-OR-

)

o lLI-RYO49, RV HL LEVEL -

LESS THAN 393'6"

-OR-o Tygon level indication -

LESS THAN 393'6" Step continued on next page APPROVED Page 14 of 62 NOV 181991 (0192Q/0018Q/030791)

"".TEL?&

-..,_m

=

I a

REV, 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 STEP ACT10N/ EXPECTED RESPONSE RESPONSE NOT OBTAINED l

~

l ATTACEMENT A (Page 4 of 20)

RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS Step 4 (continued) i

b. RCS level:

b. GO To Step 8.

o RVLIS plenum region - LESS THAN 277.

-OR-I o

ILI-RYO46, RV EL LEVEL -

LESS THAN 392'

-OR-o ILI-RYO49. RV HL LEVEL -

LESS TRAN 392'

-OR-t o Tygon level indication - LEEE TRAN 392' 5

GEG_KSJ0T SIDE VENT t

PATH RESISTA4CE:

l

a. RCS HOT SIDE Vent Path

a. LE the RCS has a cold l

resistance - ACCEPTABLE leg opening, per FIGURE 1Bw0A PRI 10-2 IEEH, refill the RCS per (pace 10) the following:

1) Align at least one SI Pp for Hot Leg i

injection.

2) Start the aligned SI Pp.

2) EHEH RCS level is I

greater than 393'6",

IHEH stop the SI Pp.

4) GO TO Step 9.

APPROVED NOV 181991 (0192Q/0018Q/030791)

~

NSE7cOrw

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REV. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 l

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

ATTACHMENT A (Page 5 of 20)

RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS 6

ALLELCENT. CHARGING PP II a CENT CHARGING Pp is not TO R EFIL L RCS:

available, IHEli makeup to the RCS using

a. Open RWST to CENT CHG one of the following:

i pump suction valves:

o Attachment I, RWST GRAVITY 1CVll2D FILL (page 61) 1CVil2E

-OR-

b. Close VCT to CENT CHG i

pump suction valves:

o Attachment G, SI PUMP HOT 3

LEG INJECTION (page 54) 1CV112B ICVll2C

-OR-

c. Increase charging flow o

Attachment H, ACCUMULATOR i

to maximum by throttling INJECTION (page 58) open ICV 121 and ICV 182 d

~

d. RCS level - GREATER THAN

d. Maintain maximum charging 393'6" flow until RCS level is greater than 393'6".

7 GO TO STEP 9 l

APPROVED

]

(0192Q/0018Q/030791) 0".^EE%v E

l 1i REY. 56 LOSS OF RH COOLING UNIT 1 IBWOA PRI-10 STEP ACTION / EXPECTED RESPONSE l RESPONSE NOT OBTAINED l

ATTACHMENT A (Page 6 of 20) f RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS AR H P

i i

a. One Cent Chg Pp -

a. Start a Cent Chg Pp r

IN SERVICE per Bw0P CV-1. STARTUP OF THE CV SYSTEM.

IE a Cent Chg Pp can HQI be started.

IHEU makeup to the RCS i

using one of the following:

o Attachment I, RWST 1

GRAVITY FILL (page 61) l

-OR-o Attachment G, SI PUMP HOT LEG INJECTION (Page 54)

-OR-o Attachment H, J

ACCUMULATOR INJECTION f

(page 58)

b. Increase RCS level to -

GREATER THAN 393'6" by throttling open 1CV121 5

and ICV 182

c. Throttle ICV 121 to maintain desired RCS level 9

IDENTIFY AND ISOLATE ANY RCS_ LEAKAGE APPROVED i

Page 17 of 62 NOV 181991 (0192Q/0018Q/030791)

ON4f7C stEVIEW

REV. 56 LOSS OF RH COOLING UNIT 1 IBWOA PRI-10 i

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT A Qage 7 of 20)

RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS i

NOIE The time to boiling in the RCS should*

be taken into consideration when determining how much time should be spent venting the RH system prior to taking additional actions starting

• at Step 10.

ggIg If adequate time to completely vent the RH system is not available, air can be swept out of the RH lines by filling the RCS to 394'4" and running an RH pump at a flowrate greater than 3000 gpm.

10 YIN' A:FECTE ) RH IE the affected RH train can TRAL N JSING RWST:

EQI be vented using the RWST THEN:

a. Maintain RCS level while venting RH System

1. Close RH Pump 1A/B Suction from RWST Isol Viv:

o ISI8812A o

ISI8812B Step continued on next page APPROVED Page 18 of 62 N' OV 181991 (0192Q/0018Q/030791)

1. $Ur8c-

)J REV. 56 LOSS OF RH COOLING UNIT 1 IBWOA PRI-10 i

t i

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

1 AIIACEiEHI_JL_(Page__B__of_ 2_Q1

)

i i

RH RECOVERY WHILE AT REDUCED INVENTORY COHDITIONS Step 10 (continued)

.; i

b. Align the affected RH train

2. Open RH Hot Leg for venting:

Suction Viv:

i

1) RH Hot Leg Suction Valves -

o 1RH8701A and B C10.SID:

o 1RH8702A and B t

o 1RH8701A and B

3. Open RH to Cold Legs o

1RH8702A and B 1A&D/lB&C:

2) RH to Cold Legs lA&D/lB&C -

o ISI8809A CLOSED:

o 1SI8809B o

1SI8809A 4

Close RH HX 1A/B Disch o

ISIB809B Itie Viv:

3) RH Pump 1A/B Suction o

1RH8716A from RWST Isol Valve -

o 1RH8716B

~

QPIH:

5. Open lA/B RH HX FCV:

o ISI8812A o

ISI8812B o

1RH606 o

1RH607

c. Vent RH train suction piping using high point vent valves:

6. Close 1A/B RH Hx Bypass FCV:

o ikB028A (379' CWA P68) o 1RH028B (379' CWA P75) o 1RH618 o

1RH619 Step continued on next page APPROVED (0192Q'0018Q/030791)

BRAIDWOOD OH-SITE REYtEW

a i

REV. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10

)-

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACEMENT A (Page 9 of 20)

RH RECOVERY WHILE AT REDUCED INVEliTORY CONDITIONS Step 10 (continued)

d. Vent RH train discharge piping

7. Vent RH train suction i

using high point vent valves:

piping using high point vent valves:

o 1RH026A o

1RH028A (357' S16 1A RH HI RM)

(379' CWA P68) o 1RH026B o

1RH028B 1

(357' V16 1B RH HI RM)

(379' CWA P75)

e. Re-align the affected RH train:

8. Vent RH train discharge piping using high point

1) RH Pump 1A/B Suction from vent valves:

RWST Isol Valve - CLOSED:

o IRH026A o

ISI8812A (357' S16 1A RH HX RM) o 1SI8812B o

1RH026B (357' V16 1B RH HX RM)

^

2) RH Hot Leg Suction Valves -

CLOSED:

9. Start the affected pump at a high flow rate and o

1RH8701A ad B monitor reactor vessel o

lhB8702A ad B level.

When RH pump amps and

[

3) RH to Cold Leg 1ALD/lB&C -

disch pressure are stable, QEEU:

reduce RH flow, o

1SI8809A

10. Shutdown the RH Pump and o

ISI8809B align per SE direction.

ll.G0 TO Step 11.

I APPROVED NOV 181991 (0192Q/0018Q/030791)

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REV. 56 LOSS OF RH COOLING UNIT 1 IBWOA PRI-10 i -

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

l i

i AIIACHMENT A (Page 10 of 20)

~~

RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS i

CAUTION Starting an RH pump may result in i

an RCS level decrease due to shrink or void collapse, r

11 RESTORE RH FLOW:

a. RCS level - GREATER THAN 393'6"

a. Continue with this l

procedure at step 12, WHEH RCS level is greater than 393'6",

IEEE perform Steps lib through 11j

b. Align the RH system:

i

1) RH Hot Leg Suction valves -

1) Align valves as necessar)

QEEH:

per ATTACHMENT B, Step la, (page 32) while o

1RH8701A and B continuing with this o

1RH8702A and B ATTACHMENT.

1

2) RH Pump Suct From RWST

2) Locally align valves as Isol Vlv - CLOSED:

necessary:

o 1SI8812A o

ISI8812A (343' V13 o

1SI8812B 1A CS PP RM above grating) o 1SI8812B (343' Il4 1B RH PP RM above grating)

Step continued on next page APPRCh/ED Page 21 of 62 NOV 181991 (0192Q/0018Q/030791)

","137f2 i

J REY. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT A (Page 11 of 20)

~

f RH RECOVERY WHILE AT REDUCED l

INVENTORY CONDITIONS Step llb (continued)

3) RH to Cold Leg 1A&D/1B&C

3) Locally align valves as I

- OPEN:

necessary:

o 1SI8809A o

ISI8809A o

1 SIB 809B (387' CWA P50) o 1SI8809B (387' CWA PSI)

c. Verify CC Flow to

c. Restore CC Flow to the RH HI - AVAILABLE:

RH HX.

o A RH HX o

B RH HX f

d. Verify /Close RH Dsch Flow path flow control vivs:

j 1

RH HX Flow control viv:

o 1RH606 o

1RH607

-1 RH HI Bypass Flow control viv:

I o

1RH618 o

1RH619

e. Start one RH pump:

i o A RH pump o

B RH pump

f. Maintain RCS level -

GREATER THAN 393'6" Step continued on next page APPROVED NOV 181991 (0192Q/0018Q/030791)

.[0Urv[w

~

i REV. 56 LOSS OF RH COOLING UNIT 1 IBw0A PRI-10 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

6TTACHMENT A (Page 12 of_ZD1 RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS i

Step 11 (continued)

g. Gradually increase RH i

flow to desired flowrate

h. Verify RH Flow - RESTORED

h. Start trending core exit TC's, and GO TO Step 12.

Observe NOTE prior to Step 12.

i. Verify RCS temperature -

i. Increase cooling flow thru l

LESS THAN 140*F the inservice RH HI l

and continue cooling the RCS.

RETURN TO Step lig.

t l

j. RETURN TO procedure and step in effect 1

l l

APPROVED l

Page 23 of 62 NUV 1 b 1991 (0192Q/0018Q/030791)

)

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i s

t REV. 56 LOSS OF RH COOLING UNIT 1 IBw0A PRI-10 i

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

i AIIACHNINT A (P_ag.e 13 of 201 RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS l

pg To maintain RCS pressure low enough for gravity Feed, at least two SG's must be refilled and utilized.

12 DETE M NE I A_ SECONDARY I

HEf1 _INLSiOULD BE ESTA LISflED:

a. RCS pressure - EEEATER

a. GO TO Step 13.

l THAN OR EOUAL TO 20 PSIG

b. SG - nf LEAST TWO AVAILABLE

b. Restore at least two Steam Generators to service while continuing with this procedure at Step 13.

c. GO TO Attachment D, STEAMING INTACT /NON-ISOLATED SG(s) (page 38) l APPROVED Page 24 of 62 NOV 181991.

(0192Q/0018Q/030791)

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j j

6TI6CHliENT A' Gage 14 of 20)

RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS l

13 EVEUATEELPERSONNEL FROM UNIT 1 CDNTAINMENT:

a. Announce over the plant page system for all unnecessary personnel to evacuate Unit 1 containment

b. Actuate Unit 1 Containment Evacuation Alarm:

1) Place Containment Evacuation Alarm control switch at IPM06J to - CONTAINMENT EVACUATION position:

2) Verify Containment Evacuation i

Alarm energized for - AT LEAST TWO MINUTES

3) Place Containment Evacuation Alarm control switch to -

RESET position

4) Verify Containment Evacuation Alarm - DEE!ERGIZED l

Step continued on next page APPROVED Page 25 of 62 NOV 181991 (0192Q/0018Q/030791)

[YEE7eview

i REV. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 l

STEP ACTION / EXPECTED RESPONSE l RESPONSE NOT OBTAINED l

ATTACHMENT A (Page 15 of 20)

RH RECOVERY WHILE AT REDUCED i

INVENTORY CONDITIONS j

Step 13 (continued)

{

c. Monitor containment conditions:

1) Notify Rad Protection Dept to monitor containment conditions and provide guidance on protective clothing and equip-ment during containment closure l

2) Notify Rad Protection Dept l

to provide additional guidance should RCS boiling point be e

reached before containment closure is completed i

i l

l i

APPROVED Page 26 of 62 NOV 181991 (0192Q/0018Q/030791)

&? sue *EL

i REV, 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 i

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

ATTACHMENT A Qage 16_ of 20)

RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS 14 INITIATE CONTAINMENT CLOSURE:

a. Close Unit 1 Containment:

1 1

1) Use 1Bw0S IPC-Wl, CNMT BLDG PENETRATION WEEKLY SURV, as a guide l

2) Provide at least one barrier between containment atmosphere 1

i and areas outside containment 15 VERIFY RCFCs RUNNING IN LOW SPE ED:

a. RCFC low speed run

a. Manually start RCFCs in f

lights - LII:

low speed.

IVP01CA i

IVP01CB

=

IVP01CC IVP01CD 16 CHECK RCS LEVEL:

a. RCS level - LEEE

a. Go To Step 21.

l THAN 393'6"

b. RCS level - LESE

b. GO To Step 20.

THAN 392' l

APPROVED Page 27 of 62 NOV 18199)

(0192Q/0018Q/030791)

"o0N%*2?,

a REV. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 STEP l ACTION / EXPECTED RESPONSE ]

RESPONSE NOT OBTAINED l

AIIACHMENT A (Page 17 of 20)

RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS 17 CBEfE_RCS HOT SIDE VENT PATH RESISTANCE:

a. RCS Hot side vent path

a. II the RCS has a cold resistance - ACC.EEIABLE leg opening, p_er FIGURE IBw0A PRI 10-2 THEH refill the RCS per I

(page 10) the following:

1) Align at least one SI pump for Hot Leg Injection.

2) Start the aligned SI Pp.

3) WHEN RCS level is greater than 393'6",

IHEH stop the SI Pp.

4) Go TO Step 21.

h 4

i APPROVED age of 62 NgyygyggI (0192Q/0018Q/030791) oDs$EEc74 i

~

i a

l REV. 56 LOSS OF RH COOLING UNIT 1 IBWOA l

PRI-10 1

1 i-STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

1 i

ATIACEMENT A (Page 18 of 20)

RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS 18 ALIGN CT4T CHARGING PP IE a Cent Charging Pp is not TO REFl

_ _ RCS:

available, 1

IHEH makeup to the RCS using

a. Open RWST to CENT CHG one of the following:

pump suction valves:

o Attachment I, RWST GRAVITY ICV 112D FILL (page 61) 1CVil2E

-OR-

b. Close VCT td CENT CHG pump suction valves:

o Attachment G, SI PUMP HOT LEG INJECTION (page 54) 1CV112C

-OR-

c. Increase charging Flow o Attachment H, ACCUMULATOR to maximum by throttling INJECTION (page 58) open ICV 121 and 1CV182 d. RCS level - GEEAIER THAli

d. Maintain maximum charging 393'6" flow until RCS level is greater than 393'6".

19 GO TO STEP 21 l

APPROVED Page 29 of 62 NOV 181991 l

(0192Q/0018Q/030791)

&"AM?2L

A REV. 56 LOSS OF RH COOLING UNIT 1 IBw0A PRI-10 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

ATTACHMENT A (Page 19 of 20)

RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS 20 BEE 11LRCS VIA CENT CHARGING PP:

1

a. One Cent Chg Pp -

a. Start a Cent Chg Pp IF SERVICE per Bw0P CV-1, STARTUP OF THE CV SYSTEM.

II a Cent Chg Pp can N.QI be started, l

IHEH makeup to the RCS

{

using one of the following:

o Attachment I, RWST GRAVITY FILL (page 61)

-OR-o Attachment G SI PUMP HOT LEG INJECTION i

(Page 54) l

-OR-o Attachment H, ACCUMULATOR INJECTION (page 58)

b. Increase RCS level to -

GREATER THAN 393'6" by l

throttling open 1CV121 and i

ICV 182

c. RCS level - GREATER THAN 393'6"

c. RETURN TO Step 20s.

d. Throttle 1CV121 to maintain desired RCS level l

l APPROVED Page 30 of 62 (0192Q/0018Q/030791) enuowooo l _

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l f

s i

i REV. 56 LOSS OF RH COOLING UNIT 1 1Bw0A l

PRI-10 STEP

[ ACTION / EXPECTED RESPONSE ]

l RESPONSE NOT OBTAINED l

ATTACHMENT ^'(Page 20 of 20)

RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS i

21 RESTORE RH COOLING:

i

a. RH Flow - RESTORED

a. Restore RCS cooling:

1) Perform one of the following:

o ATTACHMENT C, BLEED AND FEED USING EXCESS LETDOWN THROUGH LOOP DRAINS AND NORMAL CHARGING (page 33)

-OR-o ATTACHMENT G. SI PUMP HOT LEG INJECTION (Page 54)

-OR-o ATTACHMENT H.

ACCUMULATOR INJECTION l

(page 58)

2) RETURN TO Step 10.

b. RCS temperature - LESS

b. Continue cooling with RH.

i THAN 140*F RETURN TO Step 21a.

22 RETURN TO PROCEDURE AND STEP IN EFFECT

-EIO-l l

APPROVED Page 31 of 62 NOV 181991 (0192Q/0018Q/030791)

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i l

REY. 56 LOSS OF RH COOLING UNIT 1 1BWOA l

PRI-10 i

i 1

1 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED

]

~

AIIACHMENT B_(Eage 1 of 1)

LOCALLY OPENING RH HOT LEG SUCTION VALVEE 1

LOCALLY OPEN RH SUCTION VALVES:

a. LE 1PI-405 failed,

a. IE valves can NOI be opened IHEH open the following valves:

electrically due to failed

motor, 1RH8701A (MCC131X2, Cub B1)

IHEH turn breaker QEE and 1RH8702A (MCC131X2, Cub B4) locally open with handwheel a

as necessary:

II 1PI-403 failed, IEEN open the following valves:

o 1RH8701A (377' R7 P68) l o

1RH8701B (377' R11 IMB) 1RH8701B (HCC132X2, Cub B3) o 1RB8702A (377' R4 P75) 1RH8702B (MCC132X2, Cub B1) o 1RH8702B (377' R3 IMB)

1) Turn breaker QEE and open

1) At SE discretion, vent cubicle door RH trains using high point vent valves.

2) Install jumper between points 2 and 3 on terminal board at front of cubicle

3) Override breaker / door interlock and turn breaker QH I

4) EEEH 'M' contactor drops out, IEEE turn breaker DEE and remove jumper

5) Check valve position by visual inspection or by computer point

6) At SE discretion, vent RH trains using high point vent valves l

l

b. RETURN TO 1Bw0A PRI-10, Step 4 f

- END -

l APPROVED l

Page 32 of 62 NOV 181991 (0192Q/0018Q/030791) l-A?tJE7??&

l

1 a

REV. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 4

STEP

( ACTION / EXPECTED RESPONSE l RESPONSE NOT OBTAINED

]

AIIACB11ENT C (Pace 1 of 5)

BLEED AND FEED USING EXCESS LETDOWN THRU-LOOP DRAINS & NORMAL CHARGING gqrg This ATTACHMENT establishes a drain path to the RCDT.

This letdown may i

be sent to either the HUTS or RWST via the RCDT.

Charging is also established, which may use either VCT or RWST suction.

Evaluate plant conditions to determine which combination to use.

Consider RWST level, PWST levels, BAT levels, and HUT capacity.

1 CHECK RCS TEMPERATURE:

i 1

a. RCS temperature - LESS THAN

a. GO T0 another ATTACHMENT t

200*F for RCS cooling per TABLE A (page 8).

2 CHECK RCDT PUMPS:

a. At least one RCDT pump -

a. Restore an RCDT pump or AVAILABLE Go To another ATTACHMENT for RCS cooling per TABLE A (page 8).

II no other cooling method is available, IHEH perform the following:

1) Locally open the RCS Loop DRN CMN HDR ISOL to RCDT valve:

1CV8350 (377' R12 RCDT Valve Aisle)

+

2) Evacuate personnel from containment.

Step continued on next page APPROVED

,~..

~*

Page 33 of 62 (0192Q/0018Q/030791) 84^?!7PJE c,..

I a

REV. 56 LOSS OF RH COOLING UNIT 1 IBWOA PRI-10

[ ACTION / EXPECTED RESPONSE l RESPONSE NOT OBTAINED l

STEP I

~

ATTACHMENT C (Page 2 of_il J

BLEED AND FEED USING EXCESS LETDOWN THRU LOOP i

DRAINS & NORMAL CHARGIN.G l

a Step 2a (continued)

I a

i

3) At the Radwaste Pnl, ORE 01J, open RCDT Drain valve:

1RE9163

4) Verify that a CENT CHG Pp is available prior to 4

establishing a RCS drain j

path.

j l

5) Verify that the Excess LTDWN HXs Common Outlet HDR Isol Valve is closed:

1CV123 t

6) Open the following RCS Loop Drain Valves 1RC8037A 1RC8037B 1RC8037C 1RC8037D

7) GO TO step 7 of this ATTACHMINT.

1 3

CHECK CENT CHG PUMPS:

a. At least one CENT CHG pump -

a. GO TO another Attachment AVAILABLE for RCS cooling per i

TABLE A (page 8).

APPROVED Page 34 of 62 NUV 18199i (0192Q/0018Q/030791) samowooo ON.Sf7E 5tEyfEW I

I i

REV. 56 LOSS OF RH COOLING UNIT 1 IBWOA PRI-10 l

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

ATTACHMENT C (Page 3 of 5)

BLEED AND FEED USING EXCESS LETDOWN THRU LOOP DRAINS & NORMAL CHARGING 4

_0CALLY ALIGN DISCHARGE OF RCD _I

> UMP (S):

o U-l RCDT Pump to Recycle HUT's Isol Viv - OPEN:

1AB8551 (401' V14 10' below grating)

-OR-o U-l RCDT pump to RWST Isol Viv - QEEH:

1RE9171 (403' CWA From Pil) 1SI8936 (364' V15 CWA along wall) 5 ESTABLISH DRAIN PATH TO RCDT:

a. Excess Ltdwn Ex's Common Outlet t

Hdr Isol - CLOSED:

ICV 123

b. RC Loop Drn Viv - QEEH:

l 1RC8037A 1RC8037B 1RC8037C 1RC8037D l

c. RCS Loop Drn Cmn Hdr Isol to RCDT -

i THROTTLED:

1CV8350 (377' R12 RCDT Valve Aisle)

APPROVED ID bd3 Page 35 of 62 (0192Q/0018Q/030791)

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REV. 56 LOSS OF RH COOLING UNIT 1 1Bw0A PRI-10 i

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OSTAINED l

ATTACEMEUI C (Page 4 of 5)

BLEED AND TEED USING EXCESS LETDOWN THRU LOOP l

DRAINS & NORMAL CHARGING 6

VERIFY RCDT PUMPS IN AUTO:

lA RCDT pump a

IB RCDT pump i

7 CHECK VCT MAKEUP CONTROL SYSTEM:

f

a. Mode selector switch - AUTOMATIC

a. Verify RWST level greater than 61 and perform the following:

1) Open RWST to CENT CHG Pumps Suction valves:

2 1CVll2D 1CV112E

2) Close VCT Outlet Isol valves:

ICV 112B 1CV112C

3) Go To Step 8.

b. Set boric acid and makeup water flow controller potentiometers - GREATER THAN ECS BORON CONCENTRATION

c. Control switch - START 8

VERIFY CHARGING SYSTEM STATUS:

a. CENT CHG Pumps Miniflow Isol Valves - QEEH:

1CV8110 1CV8111 1CV8114 l

1CV8116 Step continued on next page APP R.OV ED Page 36 of 62 NOV 181991 (0192Q/0018Q/030791)

OH-SITE ftEviEw

J REV, 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 l

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT C (Pare 5 of 5)

~

BLEED AND FEED USING EXCE5S LETDOWN THRU LOOP DRAINS & NORMAL CHARGING Step 8 (continued)

b. Charging Line Cnat i

Isol Valves - DEEH:

1CV8105 I

1CV8106

c. Start a CENT CHG pump

d. Monitor RWST level, IE RWST Level EMPTY alarm energizes, IHEH trip Cent Chg Pump AHD isolate the drain path

e. Equalize charging and letdown flow i

9 EVALUATE EFFECTIVENESS OF COOLING 1 ETHOD:

l

a. Chech RCS temperature -

a. GO TO another ATTACHMENT STABLE OR DECREASING for RCS cooling per TABLE A (page 8),

10 CONU NUE ATTEMP"S TO RESTORE Ri COOLLNG:

l

a. LE at anytime an RH l

train becomes available, THEH:

l

1) Immediately align the l

RH Train for RCS cooling per Bw0P RH-6, PLACING THE RH SYSTEM IN SHUTDOWN COOLING l

2) Return CV, AB, RE and RC Systems j

to normal lineup per SE direction l

3) RETURN TO 1Bw0A PRI-10, Step 7

- END -

APPROVED Page 37 of 62 NOV 181991 (0192Q/0018Q/030791) l A".TE7&?&

i i

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REY. SG LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 STEP ACTION / EXPECTED RESPONSE l l

RESPONSE NOT OBTAINED l

~

ATTACHMEliT D (Page 1 of 7)

STEAMING INTACT /NON-ISOLATED SG(S) 1 ESTABLISH RCS COOLING USING SG(S):

a. Check RCS temperature -

a. GO TO another ATTACHMENT f

GREATER THAN 212*F for RCS cooling per i

TABLE A (page 8).

[

t

b. Check Two SGs - AVAILABLE:

t r

[

1) Associated loop stop

1) II ALL SGs are isolated valves - OPEN

'DIEH try to unisolate at least one SG.

t II no SG can be made i

available THEH Go To another ATTACHMENT for RCS Cooling per TABLE A (page 8).

j

2) Available vent path:

2) Establish a vent path for at least one SG, o Associated PORV's IE no SG can be made o Steam Dumps available, i

IHIH GO T0 another ATTACHMENT for RCS cooling l

per TABLE A (page 8).

3) Narrow range levels -

3) Feed SGs using AF GREATER THAN 47.

System.

Maintain level l

greater than 4% narrow range.

II AF System liQI available, THEN Go TO Step 2.

4) AF system supplying SG's

4) Go TO Step 2.

l Step continued on next page APPROVED Page 38 of 62 NUV 181991 (Ol92Q/0018Q/030791)

BR AIDWOOD ON-stTE mgyagw a

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a REV, 56 LOSS OF RH COOLING UNIT 1 IBWOA PRI-10 1

STEP]

ACTION / EXPECTED RESPONSE RESPONSE NDT OBTAINED l

~ ATTACHMENT D (Pare 2 of 7)

STEAMING INTACT /NON-ISOLATED SG(S) i Step 1 (continued) 2

c. Dump steam to condenser from

c. Manually or locally dump available SGs:

steam from available SG(s) using SG FORV(s).

1) Check condenser available

2) Place MS header pressure controller in MANUAL and reduce demand signal to zero

3) Place steam dump mode selecter switch in STEAM PRESSURE mode

4) Manually adjust MS header pressure controller demand to initiate cooldown

d. Chech RCS temperature:

~

1) RCS temperature - EIAHLE

1) II steam flow from at least OR DECREASING two available SGs is i

verified Locally, THEN continue with this attachment IE Q verified, THEN 60 T0 another ATTACHMENT for RCS cooling per TABLE A (page 8).

j

2) Continue heat removal by steaming SGs and feeding with AF System

3) IE at anytime an RH train becomes available, THEN immediately align it for RCS cooling per Bw0P RH-6, PLACING THE RH SYSTEM IN SHUTDOWN COOLING j

4) RETURN TO 1Bw0A PRI-10, Step 7 APPROVED M i b 1998 Page 39 of 62 (0192Q/0018Q/030791) samowooo ON-SITE REVIEW

)

l 1

REV. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

~

ATIACEMENT D (Page 3 of 7) l STEAMING INTACT /NON-ISOLATED SG(S)

CAUTION If offsite power is lost after SI reset, then manual action may be required to restart safeguards equipment.

i i

2 CHECK FEEDWATER ISOLATION:

a. FEEDWATER ISOLATION alarm - LII

a. Go To Step 3.

b. Reset SI, if necessary:

b. Reset SI per IBw0A F

PRI-5, CONTROL ROOM INACCESSIBILITY, ATTACHMENT E.

1) Depress both SI reset pushbuttons

2) Verify SI ACTUATED PERMISSIVE LIGHT - NOT LIT

3) Verify AUTO SI BLOCKED permissive light - LII

4) Verify all automatic SI

4) Deenergize Feedwater signals - CLEARED Isolation Aur Relays by removing fuses FU-24 and FU-27 at Aux Safeguard Relay Cabinets 1PA27J and i

IPA 28J.

GO To Step 2e.

5) CLOSE AND TRIP QEEE

5) IE reactor trip breakers reactor trip breakers will HQI CLQ1E, THEH lift lead on TB506-5 in IPA 09J and IPA 10J to clear P-4 signal.

Step continued on next page 4

i APPROVED O

Page 40 of 62 (0192Q/0018Q/030791)

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f s

1 REV. 56 LOSS OF RH COOLING UNIT 1 IBw0A PRI-10 STEP ACT10N/ EXPECTED RESPONSE RESPONSE NOT OBTAINED l

ATIACHMENT D (Page 4__of 7)

STEAMING INTACT /NON-ISOLATED SG(S)

Step 2 (continued)

c. Reset feedwater isol

d. Reset feedwater isol aux relays

e. Verify feedwater isol aux relays ACTUATED lights - NOT LIT r

r CAUTION Slowly initiate feedwater flow to steam generators to limit severe water hammer to intact SGs.

TRY T0'5 ESTABLISH TW f_0W TO 3

AT LEA T TWO AVAI _ABL-E SGS:

a. Verify Condensate System in operation:

1) At least two CD/CB pump run lights - LII 1

2) FW PUMP SUCTION HDR PRESS LOW alarm - NOT LIT

b. Place FW reg valves in MANUAL and reduce demand to zero

c. Place FW reg byp valves in MANUAL and reduce demand to 1

zero Step continued on next page APPROVED Page 41 of 62 (0192Q/0018Q/030791)

BRAIDWOOD ON-SITE ftCVeEW

i a 4

REV. 56 LOSS OF RH COOLING UNIT 1 IBWOA 4

PRI-10 i

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

ATTACHMENT D (Page 5 of 7)

STEAMING INTACT /NQ14-ISOLATED SG(S)

Step 3 (continued)

d. Start the startup feedwater

d. Establish condensate flow

'i pump:

to the Steam Generators by performing the following:

1) The following interlocks must

1) Verify at least one FW be met to start the startup Pp discharge valve is feedwater pump:

open:

Suction iso] valve - OPEN:

o 1FW002A l

o 1FW002B I

1CB133 o

IFWOO2C o

1FWO58 i

Discharge isol valve - OPEN:

a e

l IE condensate flow can EQI l

1FWO59 be established, IEEH GO TO another Recirc control valve switch Attachment for RCS cooling in OPEN position:

per TABLE A (page 8).

f

~

1FWO76 Recire isol valve - QEEH:

l 1FWO58 Lube oil pressure - GREATEE THAN 8 PSIG

e. Manually open FW tempering isolation valves:

o 1FWO35A o

1FWO35B o

1FWO35C o

1FWO35D Step continued on next page APPROVED Page 42 of 62 NUV 18 Iddl (0192Q/0018Q/030791) enxiowooo ON-SITE RCVIEW e

~

l 6

REY. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 STEP ACTION / EXPECTED RESPONSE.

_j RESPONSE NOT OBTAINED l

ATTACEMEMI.J_ Gage 6 of 7)

STEAMING INTACT /NON-ISOLATED SG(S) l Step 3 (continued) l

f. Control flow with FW tempering

f. GO T0 another Attachment i

flow control valves:

for RCS cooling per TABLE A (page 8).

o 1FWO34A o

1FWO34B l

o 1FWO34C i

o 1FWO34D 4

CHECK SG LEVELS:

i

a. Narrow range level in at

a. IE feed flow to at least least two available SGs -

two available SGs is GREATER THAN 4%

verified, THEN maintain flow to restore narrow range level to greater than 41 II q verified, i

IHIH 60 T0 another i

~

ATTACHMENT for RCS cooling per TABLE A (page 8).

b. Dump steam to condenser f rom

b. Manually or locally dump available SGs:

steam from available SG(s) using SG PORV(s).

1) Check condenser available

2) Place MS header pressure controller in MANUAL and reduce demand signal to zero

3) Place steam dump mode selector switch in STEAM PRESSURE mode

4) Manually adjust MS header pressure controller demand to initiate cooldown i

APPROVED Page 43 of 62 NOV 181991 (0192Q/0018Q/030791)

&"N??S?&.

j J

REV. 56 LOSS OF RH COOLING UNIT 1 1Bw0A PRI-10 i

i STEP ACTION / EXPECTED RESPONSE l

RESPONSE NOT OBTAINED l

AIIACEliEMI D (Egge 7 of 7)

STEAMING INTACT /NON-ISOLATED SG(S) i 5

EVALUAIE EF:ECTIVENESS 0F COOLING 1 ETHOD:

I

a. Check RCS Temperature -

a. GO TO another ATTACHMENT STABLE OR DECREASING for RCS cooling per l

TABLE A (page 8).

l l

l'

b. Continue heat removal by steaming and feeding SGs 6

CD.NT NUE ATTEMPTS TO RESTORE RH LING:

t

a. IE at anytime an RH train becomes available, IHEH:

1) Immediately align the RH train for RCS cooling per l

Bw0P RH-6, PLACING THE RH j

SYSTEM IN SHUTDOWN COOLING

2) Re-align AF, FW, and CD/CB Systems per SE direction

3) RETURN TO 1Bw0A PRI-10, Step 7

-END-i

(

APPROVED Page 44 of 62

1. vuv 18139)

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.. - -. - i

l i a 4

REV. 56 LOSS OF RH COOLING JNIT 1 1BWOA PRI-10 l

4 l

3 STEP ] [. ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

s l

AIIACEMENT_E (PAGE 1 6F 5) l BLEED AND FEED USING PZR PORV(S) AND i

2 NORMAL CHARGING j

i 4

j 1

1 RESET SI IF NECESSARY:

Reset SI per 1Bw0A PRI-5, CONTROL ROOM l

a. Depress both SI reset INACCESSIBILITY, pushbuttons ATTACHMENT E.

)

b. Verify SI ACTUATED permissive light - NOT LIT

.i i

i

c. Verify AUTO SI BLOCKED permissive light - LII 7

2 RESET CONTAINMENT ISOLATION IF i

NEC ESSARY:

a. Reset Cnet Isol Phase A

a. Reset per 1Bw0A PRI-5, CONTROL ROOM INACCESSIBILITY, 4

ATTACHMENT E.

i

b. Reset Cnmt Isol Phase B

b. Reset per 1Bw0A PRI-5, CONTROL ROOM INACCESSIBILITY, j

ATTACHMENT E.

c. Reset Cnmt Ventilation Isol

d. Reset SI recirc sump and j

CENT CHG pumps miniflow isol valves:

1SI8811A l

a 1SI8811B ICV 8110 1CV8111 Step continued on next page APPROVED Page 45 of 62 NUV 18 1991 (0192Q/0018Q/030791)

O?$N$NE.

4

REY. 56 LOSS OF RH COOLING UNIT 1 IBWOA PRI-10 i

1 l-STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED AIIACBMEHT_E (Page 2 of 5)

BLEED AND FEED USING PZR PORV(S) AND

]

NORMAL CHARGING Step 2 (continued) i

e. Reset SI CENT CHG pumps miniflow isol valves:

1CV8114 1CV8116

f. Check SAC run lights - ANY LIT

f. Start one SAC per Bw0P SA-1. STARTUP AND OPERATION OF STATION AIR COMPRESSORS.

2 4

j

g. Open instrument air Cnmt isol valves:

1) IIA 065

2) IIA 066 I

h. Open fire protection Cnmt isol l

valve:

1FP010 a

5 APPROVED Page 46 of 62 Nuy 1 g ggg, (0192Q/0018Q/030791) o=70EE", &

1 REV. 56 LOSS OF RH COOLING UNIT 1 IBWOA PRI-10 1

STEP ACTl0N/ EXPECTED RESPONSE l RESPONSE NOT OBTAINED

~

AIIACEMENT E (Page 3 of ]

BLEED AND FEED USING PZR PORV(S) AND NORMAL CHARGING 3

VERIFY RCS FEED PATH:

1

a. Check pump status:

a. Manually start pumps.

CEIU CHG pumps - AT LEASI ONE RUNNIN_G j

1

b. Check ECCS valve alignment:

b. II a feed path can HQI be established, i

1) RWST to CENT CHG pumps THEN GO TO another I

suction valves - 0FJJ:

ATTACHMENT for RCS cooling per TABLE A (page 8).

j 1CV112D 1CVll2E a

2) VCT outlet icol valves - CLOSED:

i 1CV112B 1CVil2C

~

3) Charging line Cnmt isol valves - OPEN 1CV8105 1CV8106

]

4) CENT CHG pumps to cold legs injection isol valves - CLOSED:

1SI8801A 1SI8801B i

l i

APPROVED

• Jnu 4 n mn 3 (0192Q/0018Q/030791) fftlfggg

.,,.m

i a

REV. 56 LOSS OF RH COOLING UNIT 1 IBw0A PRI-10 STEP ACTION / EXPECTED RESPONSE ]

RESPONSE NOT OBTAINED l

l ATTACHMENT E (Pace 4 of 5)

BLEED AND FEED USING PZR PORV(S) AND HQRMAL CHARGINS 4

ESTABLISH RCS BLEED PATH:

j

a. Verify power to PZR PORV

a. IE either PORV is NOT isol valves - AVAILABLE:

available, IHIH GO To another 1RY8000A ATTACHMENT for RCS cooling 1RY8000B per TABLE A (page 8).

l

b. Open both PZR PORVs:

1RY455A 1RY456 5

MAINTAIN RCS HEAT REMOVAL:

II minimum flow required Operate CENT CHG pumps as necessary to maintain minimum can HQI be obtained via flow required as determined from

- normal charging.

TIGURE 1Bw0A PRI-10-3 (page 11)

IEEE open CENT CHG pumps i

to cold leg injection isol valves:

- AND -

1 SIB 801A 1SI8801B 1

Control charging flow to maintain PZR level - GREATER l

THAN 47.

6 V UAIE EF:ECTIVENESS r

DELING i ETHOD:

a. Check RCS temperature -

a. Go To another STABLE OR DECREASING ATTACHMENT for RCS cooling per TABLE A (page 8).

i i

f APPROVED

.,m..

'~'

• Page 48 of 62 samowooo l

(0192Q/0018Q/030791)

ON $f7E REvaEW w

.g g---

w+-

wv,-

s REV. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED ATIACHMDIT E (Page 5 of 5)

BLEED AND FEED USING PZR PORV(S) AND NORMAL CHARGING 7

CQNTINIJE ATTEMPTS TO RESTORE RH COO _ LNG:

! i

a. II at anytime an RH train becomes available, IHDl:

1) Immediately align the RH train for RCS cooling per Bw0P RH-6, PLACING THE Pli SYSTEM IN SHUTDOWN COOLING

2) Close both PZR PORV(s)

3) Return CV System lineup to normal per SE direction

4) RETURN TO 1Bw0A PRI-10, Step 7 i

-END-APPROVED

'# 1 O Idd '

Page 49 of 62 (0192Q/0018Q/030791) sagwooo

1 REV. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

l ATTACEMENT F (page 1 of 4) l EEFUEL CAVITY TO FUEL POOL COOLING i

E015 This ATTACHMENT uses the Refueling i

Water Purification pumps with i

1 suction from the refueling cavity.

The pumps discharge to the Spent Fuel Pool and the effluent is cooled

• t by the FC trains.

Cooler water from

• i the Spent Fuel Pit flows back to the cavity.

1 CHECK REACTOR VESSEL HEAD REMOVED GO TO raother ATTACHMENT for RCG cooling per 2

CHECK SPENT FUEL POOL COOLING:

a. At least one cooling train

a. EJtablish one train of

- IN OPERATION FC cooling.

~

II a train can HQI be established.

THEN GO To another ATTACHMENT for RCS cooling per TABLE A (page 8).

3 STOP REFUELING WATER PURIFICATION EudES:

a. LOCALLY STOP Refueling Water l

Purification pumps:

o OA Pump (364' S12 CWA) o OB Pump (364' S12 CWA) l l

i P

i APPROVED Page 50 of 62 NUV 181998 (0192Q/0018Q/030791) i I

ON-SITE REvaEW

s REY. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 I.

I STEP ACTION / EXPECTED RESPONSE ]

RESPONSE NOT OBTAINED l

l

~

AITACEMENT F (page 2 of 4)

EEFUEL CAVITY TO FUEL POOL COOLING 4

EEJF EL CAVITY TO FUEL POOL ALIGNMENT:

i

a. Check position of the following

a. Open any closed component components:

IE all components-will EDI

open, Fuel Pool Sluice Gate - QEEE IEEN Go To another Transfer Canal Gate ATTACHMENT for RCS cooling valve IFH001 - DEEN per TABLE A (page 8).

Transfer Canal Flange - QEEH I

5 LOCALLY ALIGN REFUE_ING WATER PURLFICATION PUMPS

0R RECMRCULATING REFUE _ CAVITY:

a. Locally CLOSE the following l

valves:

Unit-2 Refueling cavity Suction Valves - CLOSED:

r 2FC009 (383' R26 P57) 2FC010 (383' CWA P57)

Unit-2 RWST Suction Isol valve - CLOSED:

2FC8758 (364' + 15' V23 CWA)

b. Unit-1 RWST Suction Isol valve - CLOSED:

1FC8758 (364' + 15' V13 CWA)

c. Unit-1 Refueling Cavity Suct valves - QEEN:

1FC009 (383' R7 P57) 1FC010 (383' CWA P57)

Step continued on next page APPROVED Page 51 of 62 iluv 16 Iddi (0192Q/0018Q/030791) samowooo ON-SITE REVIEW

i REV. 56 LOSS OF RH COOLING UNIT 1 IBWOA PRI-10 i

STEP ACTION / EXPECTED RESPONSE ]

RESPONSE NOT OBTAINED l

ATTACHMENT F (ogge 3 of 4)

REFUEL CAVITY TO FUIL POOL COOLING

{

Step 5 (continued)

d. Cask Fill Isol viv - CLOSED:

OFC001 (401' + 8' Y15 CWA)

e. Demin Inlet Isol V1vs - CLOSED:

IFC013 (401' Ql7 Valve Aisle) 2FC013 (401' Q19 Valve Aisle) a

f. Spent Fuel Pit Inlet valve - QEEH:

OFC002A (401' + 10' Il5 CWA)

g. OB Refueling Water Purification Pump Suction Isol viv - QELH:

OFC003 (364' S12 CWA) j 6

LOC. ALLY START REFUE.1NG i

WATER PURIFICATION DUMPS:

j OA Pump (364' S12 CWA)

OB Pump (364' S12 CWA) i t

I 7

EVALUATE EFFECTIVENESS i

i 0F COOLING METHOD:

l I

a. Check RCS temperature -

a. GO TO another l

STABLE OR DECREASING ATTACHMENT for RCS cooling per TABLE A (page 8).

l l

l APPROVED Page 52 of 62 NUV 18 ~1991 (0192Q/0018Q/030791)

ON-SITE REVIEW I

e t ;

REV. 56 LOSS OF RH COOLING UNIT 1 IBw0A PRI-10 i

i STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

ATTACHMENT F (page 4 of 4) 1 REFUEL CAVITY TO FUEL POOL COOLING i

8 CONIJNUE ATTEM)"S TO RESTORE RH C00_ NG:

a. II at anytime an RH train j

becomes available.

2 IHEN:

J j

1) Immediately align the RH i

j train for RCS cooling per Bw0P RH-6, PLACING THE RB SYSTEM IN SHUTDOWN COOLING

2) Return FC System lineup to normal per SE direction

)

3) RETURN TO 1Bw0A PRI-10, Step 7 I

l 1

- END -

l l

l J

u APPROVED 4

l Page 53 of 62 ivuv 1 6 issa j

(Ol92Q/0018Q/030791) samowooo ON-$tTE REVIEW

i i

REY. 56 LOSS OF RH COOLING UNIT 1 1Bw0A PRI-10 STEP ACTION / EXPECTED RESPONSE l RESPONSE NOT OBTAINED l

~

ATTACHMENT G (PAGE 1 of 4)

SI PUMP HOT LEG INJECTION HOTE 1

This ATTACHMENT uses an SI pump in a hot leg injection mode. It should i

be noted that a finite volume of water exists in the RWST, and that overspill from the RCS may be unavailable for injection.

ggIg Evacuate the Containment if any overspill is expected to occur.

l 1

CHECK RWST LEVEL:

a. RWST level - GREATER TRAN 6%

a. GO T0 another ATTACHMENT for RCS cooling per TABLE A (page 8).

)

2 CHECK SI PUMPS:

a. SI pump - AVAILABLE:

a. Restore one pump in a reasonable period of time

[

or Go To another o

1A SI Pump ATTACHMENT for RCS cooling o

1B SI Pump per TABLE A (page 8).

3 VERIFY ECCS VALVE LINEUP:

a. SI pumps miniflow isolation valves - OPEN:

1SI-8813 o

ISI-8814 (lA SI Pp) o 1SI-8920 (lB SI Pp)

Step continued on next page APPROVED l

Page 54 of 62 NUV 18 DNU (0192Q/0018Q/030791) samowooo ON-SITE REYlEW

)

i

I s

i REV. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 a

STEP]

ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

ATTACHMENT G (PAGE 2 of 4) i SI PUMP HOT LEG INJECTION Step 3 (continued) i

b. SI pumps suction valves - QEEH:

1SI-8806 o

ISI-8923A (1A SI Pp) o 1SI-8923B (IB SI Pp)

c. RCS Hot Leg injection valves -

DEEH:

2 o

ISI-8802A (lA SI Pp) o 1SI-8802B (1B SI Pp)

d. RCS Cold Leg injection valves -

CLOSED:

1SI-8821A 1SI-8821B ISI-8835 EDIE Use the SI Pump Injection only as necessary to maintain Reactor Vessel

• Level GREATER THAN 393'6" and to l

limit RCS average temperature so that RWST level can be conserved and overspill from the RCS minimized.

4 START ONE SI PUMP 5

JLTDR CNMT 0LA51 ERSPILL CONJITIOY:

a. At the first indication of any containment overspill -

EVACUATE CONTAINMENT APPROVED

(

WO' 10 Page 55 of 62 (0192Q/0018Q/030791) samowooo ope.51TE REVIEW

-'e-y-ww-w 1

m-em.-.c-

i 1

i REY. 56 LOSS OF RH COOLING UNIT 1 1BWOA i

PRI-10 STEP l ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED l

)"

ATTACHMENT G (PAGE 3 of 4) i SI PUMP HOT LEG INJECTION 1

6 MONITOR RWST LEVEL:

i

a. WHEH RWST EMPTY ALARM is LU

,'i THEN stop the running SI pump l

and either use another ATTACHMENT I

or make-up to RWST with a borated source 1

j 7

CHECK IF SI

_0W CAN BE STOPP D:

4

a. Check reactor vessel level:

a. Do NOI stop SI i

flow.

RETURN TO i

o RVLIS plenum region -

Step 5 of this GREATER THAN OR ATTACHMENT.

l EQUAL TO 377.

i

-OR-i 3

o lLI-RYO46. RV HL LEVEL -

i EREATER THAN OR EOUAL TO 393'6" l

-OR-o lLI-RYO49. RV HL LEVEL -

GEEATER THAN OR EOUAL TO 393'6"

)

j

-OR-4 o

Tygon hose - GREATER THAN 393'6"

b. Check RCS temperature -

b. Do HQI stop SI STABLE OR DECREASING flow.

RETURN TO Step 5 of this ATTACHMENT.

Step continued on next page APPROVED Page 56 of 62 NOV 181991 (0192Q/0018Q/030791) f,5^E!?v??.

i i

i REV. 56 LOSS OF RH COOLING UNIT 1 IBw0A i

PRI-10 J

i -

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED AIIACEMENT G (PAGE 4 of_41 SI PUMP HOT LEG INJECTION Step 7 (continued) i

c. Verify SI pumps miniflow l

1 isolation valves - QEEU:

1SI8813 o

1SI8814 (lA SI Pp) o ISI8920 (IB SI Pp)

d. Close the RCS hot leg injection valves:

1SI8802A 1SI8802B t

e. Verify SI pump HOT LEE

e. Stop the running injection flow - STOPPED SI pump.

8 CONTJ16)E ATTEMPTS TO RESTORE RH COOLING:

~

a. LE at anytime an RH train becomes available, IHEH:

1) Immediately align the RH train for RCS cooling per Ew0P RH-6, PLACING THE RH SYSTEM IN SHUTDOWN COOLING

2) Return SI System lineup to normal l

per SE direction

3) RETURN TO 1Bw0A PRI-10, Step 7 1

- END -

APPROVED t

Page 57 of 62 (0192Q/0018Q/030791)

eggowggo, e

w 3

1 4

4 4

REV. 56 LOSS OF RH COOLING UNIT 1 IBw0A 4

PRI-10 i

STEP ACTION / EXPECTED RESPONSE l

RESPONSE NOT OBTAINED

]

i ATTACHMENT H (PAGE 1 of 3)

~

i ACCUMULATOR INJECTION l

l CAUTION i

A rapid high pressure accumulator injection may disarrange fuel assemblies if the upper internals are removed.

i CAUTION 4

The minimum ambient temperature for i

3 pressurization of the accumulator (s) is 70*F.

4 ggyg This ATTACHMENT utilizes accumulator

• injection to obtain RCS cooling.

Accumulator injection should be used

• only as necessary to limit cavity spillover.

2 1

CHECK ACCUMULATOR STATUS:

a. One accumulator pressure -

a. Attempt to restore INDICATING ON SCALE accumulator (s) or GO TO

)

another ATTACHMENT for RCS cooling per TABLE A (page B).

b. One accumulator level -

b. Attempt to restore INDICATING ON SCALE accumulator (s) or GO T0 another ATTACHMENT for RCS cooling per TABLE A (Page 8).

I

(

APPROVED Page 58 of 62 NOV 181991 (0192Q/0018Q/030791)

OWdfTE ItEVLEW

i i

REV. 56 LOSS OF RH COOLING UNIT 1 1BWOA PRI-10 STEP ACTION / EXPECTED RESPONSE l RESPONSE NOT OBTAINED ATTACEMEHT H (PAGE 2 of 3)

~

ACCUMULATOR INJECTION 2

EVA' UATE REFUEL CAVITY

_EV EL FOR OVE RSPILL:

i

a. Refuel cavity level low

a. Lower refuel cavity level enough to accept contents per Bw0P RE-4, FINAL DRAIN i

of accumulator without OF REFUEL CAVITY, TRANSFER overspill CANAL AND UPENDER AREAS.

3 VER::Y ACCUMULATOR DISCHARGE VALVES AVAL _ABLE:

~

a. At associated MCC Energize accumulator discharge valves:

1SI8808A (MCC 131X2A Cub A3)

ISI8808B (MCC 132X2A Cub A3) 1SI8808C (Mcc 132X2A Cub A2) 1SI8808D (MCC 131X2A Cub A2) i 4

INJECT ACCUMULATOR:

a. RCS WR Cold or Hot Leg

a. GO TO Step 6.

temperatures - GREATER THAN OR EOUAL TO 140*F

b. Inject 2ng accumulator by

b. II all accumulators i

manually opening its discharge injected isolation valve:

IEEH Go To another ATTACHMENT for RCS cooling o

ISI8808A per TABLE A (page 8).

o 1SI8808B o

ISIS 808C o

1SI8808D 4

1 5

M NITOR CNMT FOR ANY J

OVFRSPILL CONDITION:

i

a. At first indication of any overspill - EVACUATE CONTAINMENT APPROVED Page 59 of 62 NOV 181991 (0192Q/0018Q/030791)

,R,,D,,,,

aw.stTE REVIEW

)

1 E REV. 56 LOSS OF RH COOLING UNIT 1 1BWOA i

PRI-10 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED

~

AIIACKMENT H (PAGE 3 of 3)

ACCUMULATOR INJECTION j

l 6

EVALUATE EFFECIIVENESS 0F COOLING M ETHOD:

l i

a. Check RCS level:

a. RETURN TO Step 1 of this ATTACHMENT.

o RVLIS plenum region - AI i

LEAST 377.

l l

o ILI-RYO46 RV HL LEVEL -

GREATER THAN OR EOUAL TO 393'6" o

ILI-RYO49 RV HL LEVEL -

GREATER THAN OR EOUAL TO 393'6" i

o Tygon hose - GREATER THAN l

OR EOUAL TO 393'6"

b. Check RCS temperature -

b. RETURN TO Step 1 STABLE OR DECREASING of this ATTACHMENT.

7 CONTINUE ATTEM)"S T0 i

RESTORE Ri C00 _ LNG:

a. IE at anytime an RH train becomes available, IEEN:

1) Immediately align the RH train for RCS cooling using Bw0P RH-6, PLACING THE RH SYSTEM IN SHUTDOWN COOLING l

2) Return SI accumualtors to l

normal lineup per SE direction

3) RETURN TO 1BwoA PRI-10, Step 7

- END -

(

APPROVED (0192Q/0018Q/030791)

NOV 181991 BRAIDWOOD ON-SITE #EVIEW L

s REV. 56 LOSS OF RH COOLING UNIT 1 IBWOA PRI-10

~'

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT DBTAINED ALTACHtiEliT I (EAGE 2 of 2)

RWST GRAVITY FEED Step 2 (continued)

f. Verify RH Hx Dsch Line Dwst Isol Vivs - DIEH:

o 1SI8809A o

1SI8809B

g. Verify RH pump Suct from RWST Isol Vivs - DEEE:

o ISI8812A o

ISI8812B 3

EVALUATE EFFECTIVENESS OF C00LIMG METHOD:

a. Check RCS level - INCREASING

a. GO TO another ATTACHMENT for RCS cooling per TABLE A (page 8).

b. Check RCS level - GPIATER

b. Continue filling RCS from IEAN 393'6" RWST.

4 CONTINUE ATTEMPTS TO RESTORE RH COOLING:

a. II at anytime an RH train becomes available, IEEN:

1) Immediately align the RH train for RCS cooling per Bw0P RH-6, PLACING THE RH SYSTEM IN SHUTDOWN COOLING

2) Return CV/SI systems to normal lineup per SE direction j

3) RETURN TO 1Bw0A PRI-10, Step 7

-END-APPROVED Page 62 of 62 NOV 181991 (0192Q/0018Q/030791) l

1. $E7?ff.

L

t i

I

- i

! n i

i i

i REV. 56 LOSS OF RH COOLING UNIT 1 IBWOA PRI-10 I

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTAEHMENT I (PAGE 1 of 2)

EW_ST GRAVITY FEEQ 1

CHECK RWST LEVEL:

a. RWST level - AIU INDICATED

a. Go TO another ATTACHMEIC LEVEL for RCS cooling per i

I TABLE A (page 8).

2 ESTABLISH FILL PATH FROM RWST:

I

a. Verify containment sump outlet isol vivs - CLOSED:

1SI8811A 1SI8811B

b. Verify RH pump suct from hot l

leg isol vlvs - CLOSED:

i o

1RH8701A and B o

1RH8702A and B

c. Verify RH pump dsch vlvs -

OPEN:

o 1RH8724A o

1RH8724B

d. Verify RH HI Flow control v1vs - OPEN:

o 1RH606

~

o 1RH607

e. Verify RH Pp 1A/B Mini-Flow vivs - OPEN:

o 1RH610 o

1RH611 i

Step continued on next page APPROVED Page hl of 62 NOV 181991 j

(0192Q/0018Q/030791)

ON41TE stEviEW

..c.

I t

s REV. 56 LOSS OF RH COOLING UNIT 1 IBw0A PRI-10 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACIIMEliT I (PAGE 2 of 2)

EWST GRAVITY FEED Step 2 (continued)

f. Verify RH Ex Dsch Line Dwst Isol Vivs - QEEU:

o 1SI8809A o

1SI8809B

g. Verify RH pump Suct from RWST Isol Vlvs - QEIH:

o ISI8812A o

ISI8812B 3

EVALUATE EFFECTIVENESS OF COOLING METHOD:

s

a. Check RCS level - INCREASING

a. GO TO another ATTACHMENT for RCS cooling per TABLE A (page 8).

b. Chech RCS level - GREATER

b. Continue filling RCS from THAN 393'6" RWST.

4 CONTINUE ATTEMPTS TO RESTORE RH COOLING:

a. If at anytime an RH train becomes available, IHIH:

1) Immediately align the RH train for RCS cooling per Bw0P RH-6, a

PLACING THE RH SYSTEM IN SHUTDOWN COOLING

1. ~

2) Return CV/SI systems to normal lineup per SE direction

3) RETURN TO 1Bw0A PRI-10, Step 7

-E!TD-APPROVED Page 62 of 62 NOV 181991 0192Q/0018Q/030791)

B R AIDWOOD

_....