ML20198T135

Rev 0 to AP-520, Loss of RCS Coolant or Pressure

ML20198T135
Person / Time
Site:	Crystal River
Issue date:	01/09/1998
From:	FLORIDA POWER CORP.
To:
Shared Package
ML20198T110	List: ML20198T107 ML20198T112 ML20198T135 ML20198T141
References
AP-520, NUDOCS 9801260465
Download: ML20198T135 (91)

Text

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LOCOP REV 0 AP-520 O

LOSS OF RCS COOLANT OR PRESSURE 1.0 ENTRY C0tfDITIONS IN FO 1 MAT ON lE either of the following occur:

A significant rise in RCS leak k..

An uncontrolled RCS PRESS reduction exists IBG use this procedure.

2.0 IMMEDIATE ACTIONS 2

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There are no imediate actions for this procedure.

O r

rh Approved by MNP0

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Tu Date / /f'/fF (SIGNAT)AE ON/ FILE)

AP 520 PAGE 1 of 91 LOC 0P 9001260465 980109

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l 3.0 F0LLOW-UP ACTIONS O-ACTIONS DETAILS u-3.1 Notify personnel of plant e

STA-conditions.

• __ Plant operators e

SSOD (evaluate plant condition for potential entry into Emergency Plan) 3.2 E the RB is occupied, 1

Depress "RB EVACUATION" push

[

J.t[f3 evacuate RB, button.

1 2 __ Notify personnel tver PA.

3 ___ Repeat PA announcement.

3.3 Verify OTSG tube leakage Notify Chemistry to sample has not increased.

OTSGs.

• Observe radiation monitors and recorder traces for,the following:

.__ RM-Al2 (Condenser Exh)

RM G26-RI (81.MS line)

RM-G27-RI (A2 MS line)

RM-G25-R1 (Al MSV-25)

RM-G28-RI (B2 MSV-26)

E OTSG tube leak

> I gpm exists, MQ DHR is t[QI in operation, It[{B GO TO E0P-06,. Steam Generator Tube Rupture,-

beginning with Step 3.1

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-AP 520 REV 0 PAGE 3 of 91 LOCOP vv

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O AP-520' REV 0 PAGE 4 of 91 LOCOP

3 3.0 FOLLOW-UP ACTIONS (CONT'pl

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1 ACTIONS DETAIL.S 3.4 11 a significt.nt rise in RCS leakage exists, ltiLN GO TO Step 3.11 in this procedure.

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AP-520 REV 0 PAGE 5 of El LOCOP

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3.0 ~ FOLLOW-UP ACTIONS-(CONT'D)

ACTIONS DEMILS STATUS RCS PRF05 is lowering.

3.5 Verify proper operation of e "PZR HEATER CONTROL" PZR heaters,-

• PZR Htr Banks e RC-203-JI e RC-204-JI 1[ PZR Htrs are HQI operating properly, IRQ notify maintenance to initiate repair efforts, 3.6 If RCS PRESS continues to e Close the following valves:

lower, IH W isolate possible DHV 91 sources of RCS PRESS reduction.

RCV-53

~

RCV-11 PORV t

'RCV-13 RCV-14 3.7 IE RCS PRESS continues to 1

If Rx power is > 75%,

lower,.

IH@ CONCURRENTLY PERFORM

.AdQ RCV-13 is HQI closed,-

' IBM stop RCP-1B AP-510, Rapid Power Reduction, beginning with Step 3.1 L

2 MHW Rx power is < 75%,

IEW stop RCP-18' fT

. AJ.

i' AP-520-REV.O.

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. ACTIONS _

DETAILS 3.8 E RCS PRESS continues to

lower, 1113 trip the Rx and CONCURRENTLY PERFORM E0P-2, Vital System Status Verification,-beginning-with step 2.1 3.9.

H RCS PRESS has e

H PORV restoration is desired, stabilized, IliM perform the following:

QB is rising, IBM restore isolated Ensure PORV it closed and components as desired.

selected to "AUT0".

Open RCV-Il e

J.E PZR spray-restoration is

desired, IliG perform the following:

AV Ensure RCV-14 is closed and se.ected to "AUT0".

Open RCV-13 e

IE Aux spray restoration is

desired, IliM perform the following:

Open DHV-91 Throttle RCV-53 for plant condition.

3.10 H.a significant rise in RCS leakage does fiQI

exist, IBG EXIT this procedure.

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3.0 FOLLOW-UP ACTIONS (CONT'D)

, 1 ACTIONS DETAILS i

N._/

STATUS RCS leak exists.

1 3.11 ___ If RCS is on DHR cooling, JB[8 GO TO Step 3.73 in this procedure.

3.12 Maintain PZR level.

Control PZR level' using MVV-31 1E PZR level cannot be maintained with MUV-31, IBIB close letdown isolation valves:

MUV-567

)

MUV-49 3.13 If at any time, all the following conditions exist:

PZR level can NOT be maintained using MUV-31

_._, Rx is ILQ1 tripped IHfN trip the Rx and CONCURRENTLY PERFORM E0P-02, Vital System Status Verification, beginning with Step 2.1

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AP-520 REV 0 PAGE 11 of 91 LOCOP

Applicable carry over steps:

73 g 3.131E _PZR level can NE be maintained, Itif3 ensure the Rx is tripped...

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AP-520 REV 0 PAGE 12 of 91 LOCOP

3.0 FOLLOW-UP ACTIONS (CONT'D)

P

~ [7 ACTIONS.

DETAILS q

-3.14

-Maintain MUT level e _ E feed from BWST is desired, 2 55 in.

J.ti@ cycle appropriate BWST outlet valve:

MUV 73 MUV-58 3.15 Begin let.k rate e Observe the following:

estimation.

Makeup flow Seal injection f ow.

Letdown flow 1

See Table 1 0

3.16 H at any time, RCS leak

' exceeds any of the-

.following ITS limits:

.No pressure boundary

. leakage

-1 gpm unidentified leak 10 gpm identified leak-ItiB start a plant shutdown and cooldown within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.-

-3.17 Dete:mine if recent--

activities may have increased RCS' leak.

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13. 13 21f PZR leve1L ean HQI be maintained,: JJ.i[N ensure the Rxtis t' _ipped'..-

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3?t6Lif RCSsleak is.> ITS limits...

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3_. 0 FOLLOW-UP ACTIONS (CONT'D1 ACTIONS DETAILS 3.18 _ Determine leak location.

• RCP seal:

Recorder Dumpster RCP-1A RC-19-PR)

_ _ RC-134-FZ RCP-1B RC-19A-PR2 RC-135 FZ RCP-lC RC-198-PRI

___ RC-136-FZ RCP-lD RC-19B-PRE RC-137-FZ

• RC sump:

RM-A6 RB sump level

_.__ RB sump pump alarm frequency

• AB:

____ If AB is accessible, O

Jh 8 notify PPO to monitor AB and DH Pit sump levels (95 ft AB on radwaste panel):

AUX. BLDG. SUMP (WD-29-LI)

D.H. PIT SUMP 3-A (WD-32-LI)

D.'i. PIT SUMP 3-B WD 34-LI)

__ RM-A2 RM-A4 RM-A8

___ AB sump pump alarm frequency

• RCDT:

RCDT level

• SW System:

RM-L3 73 Surge tank level

'tf AP-520 REV 0 PAGE 15 of 91 Locop l

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~3;16 1E RCS leak,is~> ITS; limits...--

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3.0 FOLLOW UP ACTIONS (CONT'D)

ACTIONS DETAILS 3.19 ___ GO T0 applicable step based on leak location.

Leak location Step RCP Seal 3.67 RB 3.20 AB 3.44 RCDT 3.61

___ SW System 3.30 O

o\\s AP-5Z0 REV 0 PAGE 17 of 91 LOCOP d is i

Applicable carry over steps:

('^g 3.13 E PZR level can @l be maintained.111[3 ensure the Rx is tripped...

3.16 E RCS leak is > ITS limits...

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-3.0 F0LLOW UP ACTIONS (CONT'D)

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ACTIONS DETAILS STATUS RCs leak to R8 exists.

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3.20 Isolate possible leak

• Close HPVs:

' paths.

RCV-159 RCV 160 RCV-157 RCV 158 RCV 163 RCV-164 Close DHV-3

• Close PZR Spray valves:

RCV-53 RCV-13 RCV 14 If HPI PORV cooling is t[QI in

progress, IlifE close the PORV and PORV block valve:

PORV RCV ll i

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3.16 E RCS leak is > ITS limits...

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AP 520-REV 0 PAGE 20 of 91 LOCOP i

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i 3.0 FOLLOW UP ACTIONS (CONT'D) l ACTIONS DETAILS 3.21 11 leak still exists _

.MG close All sample line CAV 429 4

isolation valves.

CAV 430 CAV 1 l

CAV 3 l

I CAV 126 l

l CAV 431 CAV 432 i

1

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1[-leak still exists, j

JE G close letdown cooler MUV 498 3

inlet valves.

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Applicable carry over steps:

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3.13 H PZR level can RQI be maintained, IllB ensure the Rx is tripped...

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3.16 E RCS leak is > ITS limits...

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AP-520 REV 0 PAGE 22 of 91 LOCOP

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i 3.0 FOLLOW UP ACT!0NS (CDNT'D)

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ACTIONS DETAILS 3.23 ___ Return isolated components e

if letdown restoration is i

to service after

desired, eliminated as leak source.

IBf8 CONCURRENTLY PERFORM i

E0P 14. Enclosure 4. Letdown.

Recovery.

If PORV restoration is desired, 181N perform the following:-

Ensure PORV is closed and selected to "AUT0".

Open RCV ll If PZR Spray restoration is'

desired, INEN perform the following:

Ensure RCV-14 is closed and selected to "AUT0".

'Open RCV-13 0

3.24 Isolate the RB sump.

• Select RB sump pumps to

" PULL TO LOCK":

WDP 2A 6

WDP-2B e Close RB sump discharge valves:

WDV 3 WDV-4 t

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.AP-520 REV 0-PAGE 23 cf-91 LOCOP-8

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3.13 E PZR level can @l be maintained, ItiG ensure the Rx is tripped...

3.16 H RCS leak is > ITS limits...

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AP 520 REV 0 PAGE 24'of 91

.LOCOP

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i 3.0 F0LLOW UP ACTIONS (CONT'D)

ACTIONS DETAILS s

t 3.25

- Ensure emergency RB 1 At least 1 Emergency SW Pump cooling is in service.

running:

[ Rule 5, EDG Control)

SWP-1A

)

54P-1B

+

2 At least 1 Emergency SW Raw Water Pump running:

2-RWP-2A RWP 28 3 2 RB cooling units running in slow speed:

?

_ AHF-1A

__ AHF-1C AHF-1B 4 CI valves to RB cooling units closed:

SWV 151 SWV-152 SWV-355-5 SW valves to RB cooling units open:

SWV-353 SWV-354 I-T AP 520L

- REV 0 PAGE 25_of 91_

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3.13 E PZR level can @l be maintained, IBDj ensure the Rx is tripped...

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3.16 E RCS leak is > ITS limits...

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.AP 520 REV 0 PAGE 26 of 91 LOCOP l

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i 3.0 FQLL W UP ACTIONS (CONT'D)

ACTIONS DETAILS 3.26 E at any time, RCS PRESS is f 1500 psig, BED any valve failed to close.

IB M attempt to.close the affected valve.

1 l

3-.27 H condition: permit, e Specific instructions will be JB B make an RB entry and provided by plant management or TSC.

determine source of leak.

3.28 _ E plant was initially in one of the following:

Mode 3 Mode 4 O

A3D RCS leak.is

> 100 gpm,

'Iti@ GO TO E0P 08 LOCA Cooldown, beginning with I

Step 3.1 t

3.29 E RCS leak exists, e

Maintain PZR level.

.111@ maintain RCS inventory and EXIT this See OP 103B, Plant Operating procedure.

Curves.

e Maintain-MUT level 2 55 inches.

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REV 0 PAGE 27 of 91' LOCOP L-

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Applicable carry-over steps:

N 3.13 E PZR level can @l be maintained. JHG ensure the Rx is tripped...

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3.16 E RCS leak is > ITS limits...

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AP-520 REV 0 PAGE 28 of 91 LOCOP

3.0 FOLLOW-UP ACTIONS (CONT'D)

ACTIONS DETAILS STATUS RCS leak to SW system exists.

3.30 _, Close RCS sample cooler isolation valves.

CAV 429 CAV 430 CAV 1 CAV-3 CAV-126 O

-3.31 11 leak still exists,

• Close letdown isolation valves:

J3f,B isolate letdown coolers.

MUV 49

_ MUV-567

• Close letdown cooler inlet valves:

MUV-498

(-

MUV 38 MVV 39 3.32

-J1 letdown was isolated.

• Minimize seal injection using MUV-16 JBfB' control RCS to 2 3 gpm per RCP.

inventory.

L l

AP 520 REV 0 PAGE 29 of 91 LOCOP-

Applicable carry.over steps:

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('N) 3.13 H PZR level can MJ be maintained 11tG ensure the Rx is tripped...

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3.16 E RCS leak is > ITS limits...

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AP-520 REV 0 PAGE 30 of 91

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3.0 FOLLOW UP ACTIONS (C RIiDJ ACTIONS DETAILS 3.33 E letdown isolation 1 Close cv. der outlet valves:

stopped the RCS to SW

1eak, MUV-40 M determine leaking cooler.

MVV 41 2 One at a time, open previously on-line cooler inlet valve while monitoring SW surge tank:

MUV 38

-MUV-39 3 E leaking cooler is determined, M close affected cooler inlet valves:

MUHE-1A MUHE-1B MUV-38 MUV-39 3.34

. E leak is on MUHE 10, o _ Close MVV 498 M close MUV 498 and MUV 505

,o initiate RB entry to close MUV-505 3.35 Restore letdown and seal e

CONCURRENTLY PERFORM E0P-14, injection. Letdown Recovery, o

CONCURRENTLY PERFORM Enclosure 1, Seal Injection Restorition, in this procedure.

u p[U AP 520 REY:0 PAGE 31 of 91 LOCOP s

Applicable carry over steps:

^r' 3.13 11 PZR level can M I be maintained, JBIB ensure the Rx is tripped...

3.16 If, RCS leak is > ITS limits...

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AP-520 REV 0 PAGE 32 of 91 LOCOP l

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3.0 F0LLOW UP ACTIONS (CONT'D)

ACTIONS DETAILS l

3.36

_,.11 leak to the SW system is isolated, JHG EXIT this procedure.

l 4

HQII i

5W surge tank relief valve relieves to the Seawater Room ventilation.

I 3.37 __._ Determine desired storage e Evaluate best storage location for location for SW drainage.

SW drainage based on the following conditions:

Primary storage volume in MWST i

and ECSTs Secondary storage volume in SDT 1 O

Processing rate vs RCS to SW leak rate Recirculation and release times Activity of water Expected duration of RCS leak s

3. 3 8 _. Notify the PPO to CONCURRENTLY PERFORM..SW System Inventory Control, in this-'

procedure.

'AP 520 REV 0

.PAGE 33 of 91 LOCOP

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Applicable carry over steps:

3 3.13 E PZR level can @I be maintained,1110 ensure the Rx is tripped...

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3.16 E RCS leak is > ITS limits...

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AP 520

_REV 0 PAGE 34 of 91 LOCOP

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3.0- FOLLOW UP-ACTIONS fCONT'D)

ACTIONS QLT,&lLS 3.39 __,, Determine affected RCP.

• ,,_, Differential cooling water flow alarms for RCPs

• ,_, local surveys of the SW lines at 119 ft penetration area of AB e _ Changes in RCP seal PRESS or TEMP 3.40 1[ the Rx is HQI shutdown, o CONCURRENTLY PERFORM AP 510, Rapid 1113 begin power Power Reduction, beginning with Step reduction.

3.1 3.41 WiiEN the Rx is shutdown, o See OP-209, Plant Cooldown.

IBM begin plant cooldown and depressurization.

O 3.42 __.

RCS PRESS is < 200 RCP Inlet Outlet 1H 3 isolate SW to affected RCP prior to RCS RCP 1A SWV 80 SWV 84 PRESS of < 180 psig.

RCP-1B SWV-79 SWV 83 RCP lc SWV 82 SWV 86 RCP-10 SWV-81 SWV-85 3.43 EXIT this procedure.

(x

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AP 520 REV 0 PAGE 35 of 91 LOCOP'

Applicable carry over steps:

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3.13 E PZR level can M I be maintained, JJ1G ensure the Rx is tripped...

s 3.16 E RCS leak is > ITS limits...

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f AP-520 REV 0

'PAGE 36 of 91 LOCOP

3.0 F0LLOW.UP ACTIONS (CONT'D)

ACTION _S DETAILS l

t STATUS RCS leak to AB exists.

i I

P 3.44 Notify HP of AB leak.

a 3.45,_

E AD.Y of the following 1

Depress "AB EVACUATION" indicate the AB should be push button.

evacuated:

2 Notify personnel over the PA.

Health Physics survey 3

Repeat PA announcement.

Local area radiation monitors AB atmospheric O

radiation monitors ItiG evacuate the AB.

3.46 E the AB is accessible.

Notify PPO to walk down ltiG attempt to locate and pressurized portions of the MV isolate leak.

>ystem.

IE leak is found, 1110 isolate affected component.

L AP 520 REV 0 PAGE 37 of 91 LOCOP r

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Applicable carry over steps:

f ^3 3.13 1[ PZR level can @l be maintained, I!!M ensure the Rx is tripped...

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3.16 11 RCS 'ieak is > ITS limits...

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AP-520 REV 0 PAGE 38 of 91 LOCOP

3.0 FOLLfW-UP ACTIONS (CONT'D)

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ACTIONS DETAILS 1

3.47 __. H leak can 801 be found, o Close letdown isolation valves:

DB is 801 isolable.

M isolate letdown.

MUV 567

._. HUV 49 3.48 E letdown has been e Close MUV 16

isolated, IH[B, isolate seal injection.

8 3.49 If leak is stopped, i

1B[N attempt to isolate affected components.

1[ leak is 801 stopped, IB[N GO TO Step 3.52 in i

this procedure.

3.50 if letdown, 1

Fill and vent affected piping as 6NQ seal injection can be required.

restored, IS[N restore letdown and 2

CONCURRENTLY PERFORM E0P 14, seal injection. Letdown Recovery.

3 CONCURRENTLY PERFORM Enclosure 1, Seal injection Restoration, in this procedure.

IE letdown, 6ND seal injection can HQI be restored.

Id[N 60.T0 AP 510. Rapid-Power Reduction, beginning with step 3.1 0

AP 520 REV 0 PAGE 39 of 91 LOCOP g-

Applicable carry over steps:

r^s 3.131[ PZR level can @l be maintained, JHDj ensure the Rx is tripped...

k 3.16 11 RCS leak is > ITS limits...

t l

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2

,3

'\\

AP 520 REV 0 PAGE 40 of 91 LOCOP

3.0 FOLLOW-UP_. ACTION $ (CONT'D) i I

O ACTIONS DETAILS

. o i

3. 51,_

EXIT this procedure.

l t

3.52.

Verify leak is not on the -

RCP seal return line.

t IE leak is on the RCP seal e Request assistance from the i

return line, following:

IHG request additional assistance and EXIT this

__ TSC (if activated) procedure.

i Maintenance

/

Engineering h

Health Physics Plant Management O

3.53 __. Stop All MVPs.

p MVP-1B MVP lc l

F fy V

AP 520-

.REV 0-PAGE 41 of 91'

.LOCOP.

- t y

Applicable carry over steps:

7g 3.13 If PZR level can MI be maintained, JJiG ensure the Rx is tripped...

'J 3.16 J1 RCS leak is > ITS limits...

t

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\\.s u A AP 520 REV 0 PAGE 42 of 91 LOCOP cu

l i

3.0 FOLLOW UP ACTIONS (CONT!.D)

ACTIONS DETAILS 3.54 E affected component is 1

JI bus is being supplied by an isolated.

EDG, QB repaired, M ensure adequate EDG margin M prepare MVP for-exists for MVP and required restart.

cooling water pumps.

[ Rule 5EDGControl) t 2 Ensure MU control valves are closed:

,,,MUV-16

-MVV 31 3

Establish MVP cooling water supply.

4 Ensure MVP recirc to MUT valves are open:

_ MUV 53 MUV-257 5 Ensure MVP.nain lube oil pump is running:

MVP-2A MVP-?B MVP-2C 6 Ensure MVP main gear oil pump is running:

MUP-4A MVP-48 MUP 4C i

'g [

, }\\j AP 520i

- REV 0-PAGE 43 of 91 LOCOP 4.

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.1 AP-520 REV 0 PAGE 44 of gj LOCOP k

- -. ~ -.

~~

i

-L0 F0LLOW-UP-ACTIONS (CONT'D)-

ACTIONS DETAILS

^

3.55 IE an A Train MVP will be 1

E MVP lc is'MQI ES selected,

started, E notify PPO to select " PUMP

. E ensure suction.

3C" on 4160V ES Bus 38 5 alignment to MUT.

2 Ensure-the following are closed:

MVV 73 MUV-62 3 Ensure the following are open:

MUV-58 MUV-69 3.56 1[ a B Train MVP will be 1

If MVP 1A is HQI ES selected,

started, M notify PPO to select " PUMP-M ensure suction 3A" on 4160V ES Bus 3A-10 alignment to MUT.

q 2 Ensure the following are closed:

MUV-58 MUV-69 3 Ensure the following are open:

MUV-73 MUV-62

.g y

-AP-520

~REV 0 PAGE 45 of.91

- LOCOP

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i 3.0- FOLLOW-UP ACTIONS (CONT'D)

ACTIONS DETAILS 3.57 _ Start selected MVP.

_[ Rule 5,EDGControl) u 3.58 Maintain'PZR-level using-MUV-31 3.59 Restore letdown and seal PERFORM E0P-14, Enclosure 4,

-injection.

Letdown Recovery.'

o PERFORM Enclosure 1, Seal Injection. Restoration, in this procedure.

[

3'. 60.

EXIT this procedure.

'f 4

4 f

!(

AP-520.1

,REV 0

~PAGE 47 of 91 LOCOP

_l m

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Applicable carry-over steps:

\\ ']

3.13 H PZR level can NOT be maintained, JH[f{ ensure the Rx is. tripped... -

(

3,16 E RCS leak is > ITS limits...

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-AP-520 REV 0 PAGE 48 of 91 LOCOP

3.0 FOLLOW-UP ACTIONS (CONT'D)

(~'T ACTIONS DETAILS

(/

STATUS RCS l u k to RCDT exists.

3.61 Monitor PZR relief valve Monitor the PZR ultrasonic

leak, indicators.

• Monitor PZR relief valve TEMPS:

R205 (RCV-8)

R206 (RCV-9)

R207 (PORV) 3.62 Close WG header isolation i

valves.

WDV-406

,(_,)

WDV-405 3.63 E a PZR relief valve is H the PORV is leaking,

leaking, E close RCV-ll ItB isolate or determine leak rate.

M RCV-8, DE RCV-9 is leaking, E determine leak rate.

)

/

AP-520 REV 0 PAGE 49 of 91 LOCOP

Applicable carry-over. steps:

(

3.131E PZR level can [LOI be. maintained, THEN ensure the Rx is tripped...

n 3.16 1E RCS leak is > ITS limits...

y ),,

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AP-520 REV 0

'PAGE 50 of 91 LOCOP i

_ _ -. = _.. _ _. _..._

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3.0 -F0LLOW-UP-ACTIONS (CONT'D)

(

- ACTIONS-DETAILS

~ -3.64 _ 1E a PZR relief valve is e Specific instructions will be HQ1 leaking, provided by plant management.

' E conditions permit, JEG'make RB entry tos determine source of leak, 3.65 JF letdown flow does HQI e PERFORM E0P-14. Enclosure 4, Letdown exist,-

Recovery.

E ~ restoration'is

desired, IllW restore letdown.

3.66 EXIT this procedure.

t O

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1 ~.

AP 520 REV 0-

~ PAGE 51 of gl LOCOP-

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7'N 3.13 H PZR level can (LOI be maintained, THEN ensure-the Rx is tripped...

3,16 E RCS leak is > ITS limits...

.C)

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AP-520-REV 0-PAGE 52 of 91 LOCOP

,3. 0 FOLLOW-UP ACTIONS (CONT'D)

( "')

ACTIONS DETAILS

~

\\_/

STATUS RCP seal leak exists.

3,67 Determine total seal 1 Determine CB0 flow from plant outflow from affected RCP.

computer:

Point CB0 RCP-1A X922 RCP-1B X923 RCP-lc X924 RCP-ID X925 A

2 Record dumpster readings:

t#1 clicks / min 3 Determine seal leak:

x 0.25 cheks i mm gellchck gpm DUMPSTER Leak 4 Determine to'.al seal outflow:

+

=

gpm DP Opm C80 DUMPSTER DUTFLOW

)

v AP-520 REV 0 PAGE 53 of 91 LOCOP k

-4 s

-Applicable. carry-over steps:1 e'

3.13 IE: PZR level can HQI be maintained. IliEN ensure. the Rx isLtripped...

{

3.16 LIE RCS leak is > ITS limits...

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ACTIONS DETAILS 3.68-1E at any. time, degradation is rapid, ANQ any of the-following ex1st:

Third stage seal TEMP 2 180'f Seal stage pressure drop of 2 two-thirds RCS PRESS Total seal outflow is

> 2.5 gpm E stop affected RCP.

l 3.69 CONCURRENTLY PERFORM AP-510, Rapid Power n

Reduction, beginning with Step 3.1 3.70 klHEN Rx power is < 75%,

M stop the affected

RCP, 3.71_ IE letdown flow does HQI e CONCURRENTLY PERFORH E0P-14,

exist,

_, Letdown Recovery.

AHQ restoration is

desired, IHEN restore letdown.

3.72 GO TO AP-545, Plant

= Runback, beginning with.

Step 3.1:

_ - O,:

V

-AP-520

_REV 0 PAGE 55 of-91 LOCOP

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3.0 FOLLOW-UP ACT10'lS (CONT'D)

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ACTIONS DETAILS O

STATUS DHR i. service and RCS leak exists.

3.73 E at any time, DHP cavitation is detected JH M stop operating Di.1 and GO TO AP-404, Loss of Decay Heat Removal, beginning with Step 3.1.

3.74 E DH is aligned to e

H aligned to MU purification, purification, JELN close:

JH Q isclate purification l

P' A Train B Train

(>

)

DHV-105 DHV-106 1

s DHV-75 DHV-76 E aligned to SF purification, THEN close:

A Train B Train DHV-8 DHV-7 l

3.75 E purification isolation stopped the leak, THEN EXIT this procedure.

~

j AP-520 REV 0 PAGE 57 of 91 LOCOP

Applicable carry over steps:

3.73 11 DHP cavitation is detected, JHfN stop operating DHP...

s I

O AP-520 REV 0 PAGE 58 of 91 LOCOP

3.0: FOLLOW-UP ACTIONS-(CONT'D) t ACTIONS DETAILS 3.76-Establish makeup source to 1

If MV purification loop is RCS,-

required for RCS makeup, IBEN open the following as required:

DHV-75 (A Train)

DHV-76 (B Train) 2 Determine makeup source to be used:

RCBTs BASTS BWST SF pools 4

3 Align makeup source and maintain-adequate RCS-level for DHR.

O.

See OP-103B, Plant Operating Curves, curve 16

+

4 3

. :n AP-5201

REV 0 PAGE 59 'of 91 LOCOP

.~s.-.

.. -. _ _ _ -.. _ _._ _ _ _. _ _ ~ _. _. _ _ _. _ _ _. _.. _ _ _. _ _. _. _ _ _... _ _. _. _,

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f 3.73--l1E DNP cavitation is detected, ININ:stop operating DHP..-.

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3.0 FOLLOW.UP ACTIONS-(CONT'D) t

(

)

-ACTIONS DETAILS 3.77 Determine leak locatior.-

• AB:

If AB is accessible.

IN_[N notify PP0'to monitor AB~

and DH Pit sump levels (95 ft AB on radwaste panel):

AUX. BLDG. SUMP (WD 29-LI)

~

D.H. PIT SUMP 3-A (WD-32-LI)

D.H. PIT SUMP 3-B (WD-34-LI)

RM-A2 RM-A4 RM-A8 i

System walkdown e RB:

RM-Al RM-A6 RB sump level RB cump pump alarm frequency System walkdown e DC system:

RM-L5 RM L6

__. Operating DC system surge tank level

- e SF pool:

level t

AP-5201 REV 0 PAGE 61-of 91 LOCOP

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Applicable. carry-over steps:

1E DHP cavitation is detected, TkN stop. perating DHP...

(~

3.73

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l 8.J AP-520 REV 0-PAGE 62 of 91=

LOCOP iw-y-

3.0' FOLLOW-UP ACTIONS (CONT'D1 ACTIONS.

-DETAILS 3.78 1[ leak to the SF pool 1 ___ Review valve lineup.

exists, IHIN isolate SF pool from 2

Determine leak flow path.

DHR.

3 Isolate leak flow path.-

3.79 If leak stops, 1818 EXIT this procedure, h

-3.80 GO T0 applicable step based on leak location.

Leak Location Step AB 3.81 RB 3.90 DC system 3.100 k

ym AP-520:-

REV 0 PAGE 63.of 91 LOCOP 4

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i 3.73;J1E DHP cavitation is detected! Itll!f stop operating'DHP...-

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3.0 -FOLLOW UP ACTIONS?ICONT'D)

ACTIONS DETAILS STATUS DHR in service and leak to AB exists.

-3.81 Close All sample line 4

isolation valves.

CAV-429 CAV-430 CAV-1 CAV-3 l-CAV-126 CAV-431 i --

CAV-432 O

l 3.82

.E leak stops, ItiLN EXIT this procedure.

c I

- 3.83.

If leak is isolable, AND isolation does HQI require DHR termination, IHLN isolate the leak and EXIT this procedure.

(

-AP-520-REV. O PAGE 65 of 91 LOCOP g

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.. _.. _ _ _ _ _. _ _ _ _ _ _. _ _ _ _., _. _. ~., _ _ _ _....

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I 3.0 FOLLOW-UP ACTIONS (CONT'DJ

(

ACTIONS DETAILS 3.84 J1 leak is on the DHR drop 1

Stop operating DHR train,

line, MQ RCS level can ET be 2 Close the following valves:

maintained, M stop DHR, isolate DHV-41 drop line, and establish alternate cooling.

DHV-3 DHV-4 3

GO TO AP-404, Loss of Decay Heat Removal, beginninn with Step 3.1 3.85 __ IF alternate DHR train is

• _ _ 11 B Train is running, available, M PERFORM Enclosure 3, M start alternate DHR Starting A Train DHR, in this

train, precedure.

If n Train is running,

(.

M PERFORM Enclosure 4,

(

Starting B Train DHR, in this procedure.

3.86 _ If leak stops, M EXIT this procedure.

AP-520 REV 0 PAGE 67 of 91 LOCOP

- _ _ - _ _ -. -. - - ~. ~ - -. _ _. ~.. - -.

r 1

Applicable carry over;stepsin i

t

_3,73 jf;DNPcavitation :is detected,' 1118 stop; operating _. DHP...--

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-3.0 F0LLOW-UP ACTIONS-(CONT'D) l\\

.\\J ACTIONS.

DETAILS 3.87 If RCS-level is still_

1 Stop affected DHP:

lowering,.

1818 stop DHR, isolate LDHP-1A both trains, and establish alternate cooling.

DHP-1B 2 Close the following valves:

A Train B Train DHV-39 DHV-40 DHV-5 DHV-6 3

CONCURRENTLY PERFORM AP-404, Loss of Decay Heat Removal, beginning with Step 3.1 I'l 3.88 1E leak is HQI isolated, o Request assistance from the

.Ts s' IHEN request additional following:

assistance.

TSC (if activated)

Maintenance Engineering Health Physics Plant Management 2

3.89 EXIT this procedure.

f}

S- /

AP-520 REV 0-PAGE 69 of 91 LOCOP

Applicable carry-over steps:.

rx 3.73 If DHP cavitation is detected, JEFE stop operating DHP...

t 6

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-AP 520 REV 0 PAGE 70 of 91 LOCOP P

l 3.0 F0ll0W-UP ACTIONS (CONT'D)

(~~>)

ACTIONS DETAILS x.

STATUS DHR in service and leak to RB exists.

3.90 E leak is on the DHR drop 1

Stop operating DHR train,

line, M@ RCS level can @l be 2

Close the following valves:

maintained, M stop DHR, isolate DHV-3 drop line, and establish alternate cooling.

DHV-4 DHV-41 3

GO TO AP-404, Loss of Decay Heat Removal, beginning with Step 3.1

()

3.91 E cold leg nozzle dams

• E RB entry can be made,

(./

are installed, E monitor nozzle dam control IREN determine if nozzle panel for alarms and adequate air dam ?eak exists, supply.

3.92 E at any time, cold leg nozzle dam leak exists, M GO TO Step 3.97 in th's procedure.

3.93 E leak is isolable.

A@ isolation does NOT require DHR termination, M isolate the leak ar.j EXIT this procedure.

AV AP-520 REV 0 PAGE 71 of 91 LOCOP

.-.. _ -..._.. - - _. ~.. _. _ _ _. _ _ _ -. _ - -.. _.. _.. _ _. _ _.. _... -.

i Applicable carry over steps:-

3.73 ::/1E DHP. cavitation:is detected. Ilifff stop operating DHP....

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3.0 FOLLOW UP ACTIONS (CONT!D) i ACTIONS DETAILS 3.94 __._ If alternate DHR train is H B Train is running, available, lti[B PERFORM Enclosure 3, IllG start alternate DHR Starting A Train DHR, in this

train, procedure.

__ IF A Train is running, IliW PERFORM Enclosure 4 Starting B Train DHR, in this procedure.

3.95 F 1eak stops, ltifi EXIT this procedure.

3.96 _ E RCS level is still 1 Stop affected DHP:

l owe r.ing,

lilG stop DHR, isolate DHP-!A q

both trains, and establish (g

alternate cooling.

_ DHP-1B 2 Close the following valves:

A Train B Train DHV-39 DHV-40 DHV-5 DHV 6 g

3.__ CONCURRENTLY PERF0kN AP 404, Loss of Decay Heat Removal, beginning with Step 3.1

,C'T X.J AP-520 REV 0 PAGE 73 of 91 1.0 COP 4

iei L

-um umasir aa i-m-is1

Applicable carry over steps:

,r 3.73 U, 3 1[ DitP cavitation is detected, IllW stop operating DHP...

i 7,

i

)

AP-520 REV 0 PAGE 74 of 91 LOCOP

k i

i 3.0 FOLLOW UP ACTIONS (CONT'D) i ACTIONS DETAILS 3.97 11 leak is @l isolated.

• Request assistance from the JBiff request additional following:

i assistance.

TSC (if activated)--

l

__ Maintenance

.__, Engineering Health Physics l

Plant Managerrat I

3.98 Isolate the RB sump, e Select RB samp pumps to

" PULL TO LOCK":

WDP 2A WDP-28 e Close RB sump discharge valves:

- i WDV 3 WDV-4 3.99 EXIT this procedure, r

P i

- 5

-AP 520'

- REV 0f PAGE-75.of 91

-LOCOP-r

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3.0 F0LLOW UP ACTIONS (CONT'D) i 1

(}

ACTIONS DETAILS STATUS DHR in service and leak to DC system exists.

3.100 ___ 11 alternate DHR train is 1

if B Train is running, available, IHEN PERFORM Enclosure 3, IEEE start alternate DHR Starting A Train DHR, in this train and EXIT this procedure, procedure.

2 11 A Train is running, IBIN PERFORM Enclosure 4, Starting B Train DHR, in this procedure.

3 ___ EXIT this procedure.

4 1

O 3.101 11 leak is challenging DC 1 Stop DHP:

surge tank level, ldL8 isolate leaking DHR DHP 1A train.

DHP 1B 2

60 TO AP-404, Loss of Decay Heat Removal, beginning with Step 3.1 3.102 1E leak can be 1

Continue operation of leaking controlled, DHR train.

IREN start preparations for alternate cooling and-2 Restore shutdown DHR train if.

EXIT this procedure, possible.

3 Request assistance.

4 EXIT this procedure.

.U; %.

.AP 520 REV 0 PAGE 77.of 91 LOCOP

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1,0 ENCLO5URE 1 SEAL INJEC'i10N RESTORATION

(}

ACTIONS DETAILS l

(/

1.1 Restore RCP seal 1

Ensure MUV 16 is closed.

injection.

2 Ensure a MVP is running.

3 Ensure MUV-18 is open.

4 Throttle open MOV 16 to establish seal _ injection flow rate of 3 gpm/ pump over a two-minute time period, lime 3 gpm established 5

WHES 10 minutes has elapsed with seal injection of'3 gpm/ pump, 181H increase seal injection flow to 6 gpm/ pump.

Time 6 gpm established 6

WHIN 10 minutes has elapsed with seal injection of 6 gpm/ pump.

O IBIN increase seal injection flow to 10 gpm/ pump.

l l-I j ;(j l u (f

.AP 520 REV_ 0 PAGE 79 of-91 LOCOP

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REV 0 PAGE 80 of 91 LOCOP l'.

5.0 ENCLOSURE 2 SW $YSTEM INVENTORY. CONTROL ACTIONS DETAILS 2.1 Request Chemistry to expedite any pending release permits.

2.2 J.E primary storage is e use at least one of the following

desired, valves:

M maintain SW system inventory using drains.

SWV 437."SW to RC Evap Drain",

with cap removed and sleeved to drain (95 ft AB RC Evap valve alley next to floor drain)

_ _ SWV-450 "SW to SP Cooler Drain",

with drain hose connected (119 ft AB by SFPs) 2.3' 1[ secondary storage is

• Use at least one of the following desired.

valves:

^

M maintain SW system inventory using drains.

SWV 455 "SW Supply Header Drain", with drain hose connected-(95 ft AB outside Triangle Room)

__ SWV-490 "SWP Suction Header Drain", (95 ft AB Seawater Room on suction header) 2.4 Open selected valves to maintain SW system inventory,

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-AP 520 REV 0 PAGE 81 of 91 LOCOP 1

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5.0 ENCLCSURE 3 Startina A Train DHR f ';

ACTIONS DETAILS N.-)

3.1 Position DCV-177-MS to "0".

3.2 Isolate MU purification 1

Close DHV-106 flow.

2 Close DHV-76 3.3 Align DHP-1A for DHR.

• Ensure the following valves are closed:

DHV 34 DHV-42 DH'! 8

.m DHV-105 DHV 75 3.4 Open DHP-1A isolation I

valves.

DHV-39 DHV-5 3.5 Adjust DH control valves for '500 gpm.

DHV-Ill DHV-110

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AP-520 REV 0 PAGE 83 of 91 LOCOP

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O AP 520 REV 0 PAGE 84 of 91 LOCOP

i 5.0 ENCLO5URE 3 Startina A Train DHR (CONT'D) 1 I

ACTIONS DETAILS U

i 3.6 Start A DH train.

1 _ Start DCP-1A 2

. Start RWP-3A 3

Start DHP-1A 3.7 Establish-RCS cooling.

• Adjust DCV-177 MS for desired cooling.

k 1

3.8 Stop DHP-1B 3.9 Isolate B DHR train.

• Close the following valves:

DHV 40 DW 6 3.10

. Control RCS TEMP.

e Adjust DHV-llo setpoint to 3000 gpm.

e Adjust DCV-177-MS for desired cooling.

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AP 520--

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5.0 ENCLOSUR(_3 Jtartino B Train Dl'R

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ACTIONS DETAILS 4.1 Positim DCV-178 MS to "0".

4.2 Isolate MU purification 1

Close DHV 105 flow.

2 Close DHV 75 4.3 Align DHP-1B for DHR.

• Ensure the following valves are closed:

DHV-35

._ DHV-43 DHV-7 f~')

_ DHV-106 v'

DHV 76 4.4 Open DHP-1B isolation valves.

DHV-40 DHV-6 4.5 Adjust DH control valves for 1500 gpm.

DHV-Il0 DHV-Ill l

AP-520 REV 0 PAGE 87 of 91 LOCOP

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5.0 DICLOSURE 4 Startine B Train DNR (CONT'D) l

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ACTIONS-DETAILS 4.6

-Start B DH' train.

1 _ Start DCP-18 2 _

Start RWP-3B 3

_ Start DHP 1B 4.7 Establish RCS cooling.

e Adjust DCV 178 MS for desired

cooling, i

4.8 Stop DHP-1A l

4.9 Isolate A DHR train.

• Close the following valves:

_ _ DHV-39 DHV 5 4.10 _, Control RCS TEMP.

o Adjust DHV-II) setpoint to 3000 gpm.

Adjust DCV-178 MS for desired

cooling, fN}/-

AP-520L

- REY 0-PAGE 89 of_91

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COMPONElR VOLUME l MUT 30.8 gal /in PZR (2155 psig) 12.2 gal /in PZR (2100 psig) 12.4 gal /in PZR (1900 psig) 13.3 gal /in PZR (1700 psig) 14.1 gal /in Table 1: Values PZR (1500 psig) 14.9 gal /in for leak rate estimation OTSG

~45 gal /in OTSG

=135 gal /t RB sump 23.6 gal /in AB sump 43.6 gal /in SWT 1 58.1 gal /in RCOT 32.9 gal /in DCT 1A or B 27.2 gal /in O

O.

U AP.520 REV 0 PAGE 91 of 91 (LAST PAGE)

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