RS-21-016, Supplement to Application to Revise Technical Specifications to Adopt TSTF-566, Revise Actions for Inoperable RHR Shutdown Cooling Systems

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Supplement to Application to Revise Technical Specifications to Adopt TSTF-566, Revise Actions for Inoperable RHR Shutdown Cooling Systems
ML21029A306
Person / Time
Site: Dresden, Peach Bottom  Constellation icon.png
Issue date: 01/29/2021
From: Simpson P
Exelon Generation Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
RS-21-016
Download: ML21029A306 (16)
v • d • e


Text

4300 Winfield Road Warrenville, IL 60555 Exelon Generation 630 65 7 2000 Office RS-21-016 January 29, 2021 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Dresden Nuclear Power Station, Units 2 and 3 Renewed Facility Operating License Nos. DPR-19 and DPR-25 NRC Docket Nos. 50-237 and 50-249 Peach Bottom Atomic Power Station, Units 2 and 3 Renewed Facility Operating License Nos. DPR-44 and DPR-56 NRC Docket Nos.50-277. and 50-278 10 CFR 50.90

Subject:

Supplement to Application to Revise Technical Specifications to Adopt TSTF-566, "Revise Actions for Inoperable RHR Shutdown Cooling Systems"

Reference:

Letter from P.R. Simpson (Exelon) to U.S. NRC, "Application to Revise Technical Specifications to Adopt TSTF-566, 'Revise Actions for Inoperable RHR Shutdown Cooling Systems'," dated April 13, 2020 (ML20104C104)

In accordance with 10 CFR 50.90, "Application for amendment of license, construction permit, or early site permit," Exelon Generation Company, LLC (EGC), proposed a change to the Technical Specifications (TS),

Appendix A of Facility Operating License (FOL) No. NPF-62 for Clinton Power Station, Unit 1, Renewed FOL Nos. DPR-19 and DPR-25 for Dresden Nuclear Power Station, Units 2 and 3, Renewed FOL No. DPR-59 for James A. FitzPatrick Nuclear Power Plant, Renewed FOL Nos. NPF-11 and NPF-18 for LaSalle County Station, Units 1 and 2, Renewed FOL No. NPF-69 for Nine Mile Point Nuclear Station, Unit 2, Renewed FOL Nos. DPR-44 and DPR-56 for Peach Bottom Atomic Power Station, Units 2 and 3, and Renewed FOL Nos. DPR-29 and DPR-30 for Quad Cities Nuclear Power Station, Units 1 and 2. The proposed changes are consistent with previously NRC-approved Industry/Technical Specifications Task Force Traveler 566 (TSTF-566), Revision 0, "Revise Actions for Inoperable RHR Shutdown Cooling Systems."

During preparation and review of clean TS pages to be submitted to the NRC, it was identified that the addition of the word "required" for the proposed new Required Action B.1 would result in improved consistency of wording within the TS for Dresden Nuclear Power Station and Peach Bottom Atomic Power Station. The updated marked-up TS pages for these two plants are included in Attachments 1 and 2, respectively. These pages supersede those included in the Reference for these two plants in their entirety.

EGC has reviewed the information supporting a finding of no significant hazards consideration, and the environmental consideration, that were previously provided to the NRC in Reference 1. EGC has concluded

January 29, 2021 U.S. Nuclear Regulatory Commission Page 2 that the information provided in this response does not affect the bases for concluding that the proposed license amendment does not involve a significant hazards consideration under the standards set forth in 10 CFR 50.92. In addition, EGC has concluded that the information in this supplemental letter does not affect the bases for concluding that neither an environmental impact statement nor an environmental assessment needs to be prepared in connection with the proposed amendment.

In accordance with 10 CFR 50.91, "Notice for public comment; State consultation," paragraph (b), EGC is notifying the State of Illinois and the State of Pennsylvania of this supplement to the proposed TS pages by transmitting a copy of this letter and its attachments to the designated State Officials.

There are no regulatory commitments contained in this letter. Should you have any questions concerning this letter, please contact Ms. Rebecca L. Steinman at (630) 657-2831.

I declare under penalty of perjury that the foregoing is true and correct. Executed on the 291h day of January 2021.

Respectfully, Patrick R. Simpson Sr. Manager Licensing Exelon Generation Corporation, LLC Attachments:

1. Markup of Proposed Technical Specifications Pages for Dresden Nuclear Power Station
2. Markup of Proposed Technical Specifications Pages for Point Beach Atomic Power Station cc:

NRC Regional Administrator, Region I NRC Regional Administrator, Region Ill NRC Senior Resident Inspector - Dresden Nuclear Power Station NRC Senior Resident Inspector - Peach Bottom Atomic Power Station Illinois Emergency Management Agency - Division of Nuclear Safety R. R. Janati, Pennsylvania Bureau of Radiation Protection

ATTACHMENT 1 Markup of Proposed Technical Specifications Pages For Dresden Nuclear Power Station Dresden Nuclear Power Station, Units 2 and 3 Renewed Facility Operating License Nos. DPR-19 and DPR-25 REVISED TECHNICAL SPECIFICATIONS PAGES 3.4. 7-1 3.4. 7-2 3.4.8-1 3.4.8-2

SOC System-Hot Shutdown 3.4.7 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.7 Shutdown Cooling (SOC) System-Hot Shutdown LCO

3.4.7 APPLICABILITY

ACTIONS Two SOC subsystems shall be OPERABLE, and, with no recirculation pump in operation, at lea st one SOC subsystem sha ll be in operation.

- - - - - - - - - - - - - - - - - - - - - - - - - - - -NOTES- - - - - - - - - - - - - - - - - - - - - - - - - - -

1.

Both required SOC subsystems and recirculation pumps may be not in operation for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> per 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> period.

2.

One required SOC subsystem may be inoperab l e for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> for the performance of Surveillances.

MODE 3, with reactor vesse l coolant temperature less than the SOC cut -in permissive temperature.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - N 0 TE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Ir Separate Cond iti on entry is allowed for each SOC subsystem.

/'f CONDITION A.

One or two required SOC subsystems inoperable.

Dresden 2 and 3 REQUIRED ACTION IAitiate actioA to FestsFe Fe~l:liFed SOC s1:Jbsysteffl( s) to OPERABLE stat1:Js.

COMPLETION TIME Iff!ff!edi ately (continued) 3.4.7-1 Amendment No. 212/204

ACTIONS CONDITION A.

(continued) :-

No required SOC B. Required Action and associated Completion Time of Condition A not met.

subsystem in operation.

AND No recirculation in operation.

B.1 Initiate action to restore required SOC subsystem(s) to OPERABLE status.

Dresden 2 and 3 SOC System-Hot Shutdown 3.4.7 REQUIRED ACTION Verify an alternate method of decay heat removal is available for each inoperable required SOC subsystem.

Be iA MODE q _

Initiate action to restore one required SOC subsystem or one recirculation pump to operation.

Verify reactor coolant circulation by an alternate method.

Monitor reactor coolant temperature and pressure.

COMPLETION TIME 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> Once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> thereafter zq AOl:ff S

!i mmediately I Immediately 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> from discovery of no reactor coolant circulation Once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter Once per hour 3.4.7-2 Amendment No. 185/1 80

SOC System-Cold Shutdown 3.4.8 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.8 Shutdown Cooling (SOC) System-Cold Shutdown LCO

3.4.8 APPLICABILITY

ACTIONS Two SOC subsystems shal l be OPERABLE, and, with no recirculation pump in operation, at least one SOC subsystem sha ll be in operation.

- - - - - - - - - - - - - - - - - - - - - - - - - - - -NOTES- - - - - - - - - - - - - - - - - - - - - - - - - - -

1.

Both required SOC subsystems may be not in operation during hydrostatic testing.

2.

Both required SOC subsystems and recirculation pumps may be not in operat i on for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> per 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> period.

3.

One required SOC subsystem may be inoperabl e for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> for the performance of Surveil lan ces.

MODE 4.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -NOTE- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Separate Condition entry is allowed for each shutdown coo ling subsystem.

CONDITION REQUIRED ACTION COMPLETION TIME A.

One or two required A.1 Verify an alternate 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> soc subsystems method of decay heat inoperable.

removal is available AND for each inoperable required SOC Once per subsystem.

24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> thereafter 1r--.

~

(continued)

I B. Required Action B. 1 Initiate action to and associated restore required SOC I Immediately I

Completion Time of subsystem(s) to Condition A not met.

OPERABLE status.

Dresden 2 and 3 3.4.8-1 Amendment No. 185/1 80

SOC System-Cold Shutdown 3.4.8 ACTIONS d

CONDITION No required SOC subsystem in operation.

No recirculation pump in operation.

t IC.2 I REQUIRED ACTION Verify reactor coolant circulating by an alternate method.

Monitor reactor coolant temperature and pressure.

SURVEILLANCE REQUIREMENTS SR 3.4.8.1 SR 3.4.8.2 SURVEILLANCE Verify one SOC subsystem or recirculation pump is operating.

Verify SOC subsystem locations susceptible to gas accumulation are sufficiently filled with water.

COMPLETION TIME 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> from discovery of no reactor coolant circulation Once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter Once per hour FREQUENCY In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program Dresden 2 and 3 3.4.8-2 Amendment No. 2qq ; 237

ATTACHMENT 2 Markup of Proposed Technical Specifications Pages For Peach Bottom Atomic Power Station Peach Bottom Atomic Power Station, Units 2 and 3 Renewed Facility Operating License Nos. DPR-44 and DPR-56 REVISED TECHNICAL SPECIFICATIONS PAGES Peach Bottom Atomic Power Station. Unit 2 3.4-16 3.4-17 3.4-19 3.4-20 Peach Bottom Atomic Power Station. Unit 3 3.4-16 3.4-17 3.4-19 3.4-20

RHR Shutdown Cooling System-Hot Shutdown 3.4.7 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.7 Residual Heat Removal (RHR) Shutdown Cooling System-Hot Shutdown LCO

3.4.7 APPLICABILITY

ACTIONS Two RHR shutdown cooling subsystems shall be OPERABLE, and, with no recirculation pump in operation, at least one RHR shutdown cooling subsystem shall be in operation.

- - - - - - - - - - - - - - - - - - - - - - - - - - - -NOTES- - - - - - - - - - - - - - - - - - - - - - - - - - -

1.

Both required RHR shutdown cooling subsystems and recirculation pumps may be removed from operation for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> per 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> period.

2.

One required RHR shutdown cooling subsystem may be inoperable for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> for performance of Survei 11 ances.

MODE 3, with reactor steam dome pressure less than the RHR shutdown cooling isolation pressure.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --NOTE- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Separate Condition entry is allowed for each RHR shutdown coo l ing subsystem.

CONDITION A.

One or two required A-:-+/-

RHR shutdown cooling subsystems inoperable.

PBAPS UNIT 2 REQUIRED ACTION IAitiate actieA te l"CStGl"C l"CEjl:Ji l"CS Rll R SAl:JtSG'1/A ceel i A§l Sl:JBS)'StCFA( 5) te OPERABLE stahts.

3.4-16 COMPLETION TIME lFAFACSi a tel)'

(continued)

Amendment No. ~

ACT IONS CONDITION A.

(continued)

£-..;-

No RHR shutdown cooling subsystem

~

operation.

B. Required Action and associated Completion Time of Condition A not met.

AND No in B.1 Initiate action to restore required RHR shutdown cooling subsystem(s) to OPERABLE status.

operation.

PBAPS UNIT 2 in RHR Shutdown Cooling System-Hot Shutdown 3.4.7 REQUIRED ACTION Verify an alternate method of decay heat removal is available for each required inoperable RHR shutdown cooling subsystem.

Be i A MODE~

Initiate action to restore one RHR shutdown cooling subsystem or one recircu l ation pump to operation.

Verify reacto r coolant circulation by an alternate method.

Monitor reactor coolant tempe rature and pressure.

3.4-17 COMPLETION TIME 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> AND Once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> thereafter 2 ~

AOl:ffS

~~lm~

m-ed-i-at-e-

ly~~~

Immediately 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> from discovery of no reactor coolant circulation Once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter Once per hour Amendment No. ~

RHR Shutdown Cooling System-Cold Shutdown 3.4.8 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.8 Residual Heat Removal (RHR) Shutdown Cooling System-Cold Shutdown LCO

3.4.8 APPLICABILITY

ACT IONS Two RHR shutdown cooling subsystems shall be OPERABLE, and, with no recirculation pump in operation, at least one RHR shutdown cooling subsystem shall be in operation.

- - - - - - - - - - - - - - - - - - - - - - - - - - - -NOTES- - - - - - - - - - - - - - - - - - - - - - - - - - -

1.

Both required RHR shutdown cooling subsystems and recirculation pumps may be removed from operation for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> per 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> period.

2.

One required RHR shutdown cooling subsystem may be inoperable for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> for performance of Survei 11 ances.

MODE 4.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --NOTE- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Separate Condition entry is allowed for each RHR shutdown coo l ing subsystem.

CONDITION REQUIRED ACTION A.

One or two required RHR shutdown cooling subsystems inoperable.

A.1 Verify an alternate method of decay heat removal is available for each inoperable required RHR shutdown cooling subsystem.

(

B. Required Action and associated Completion Time of Condition A not met.

PBAPS UNIT 2 B. 1 Initiate action to restore required RHR shutdown cooling subsystem(s) to OPERABLE status.

3.4-19 I Immediately COMPLETION TIME 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> Once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> t hereafter (continued)

I Amendment No. ~

RHR Shu tdown Cooli ng System-Cold Shutdown 3.4.8 ACTIONS (continued)

COND IT ION REQUIR ED ACTI ON

~ No RHR shutdown

-&-:-+

Ver i fy reactor

~ coo li ng subsys t em i n coolant ci rcu l ati ng operat i on.

~

by an al ternate met hod.

AND No rec i rcu l at i on pump i n operat i on.

AND B-; Mon itor reactor

~

coo l ant temperature and pressure.

SURVEI LLANC E REQU IREMENTS SR 3.4.8. 1 SR 3.4.8.2 PBAPS UN IT 2 SURV EILLANC E Ver i fy one required RHR shutdown cooling subsyst em or rec i rculat i on pump i s operating.

- -- -- -- -- --- -- -- -- -NOTE -- -- -- --- -- - - --- - - --

HP SW system rel ated components are exc l uded.

Ver i fy requ i red RHR shutdown cooli ng subsyst em l ocat i ons suscept i ble to gas accumu l at ion are suffic i ently f il led wi t h water.

3.4-20 COMP LETI ON TIM E 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> from di scovery of no reactor cool ant ci rcu l at i on AN D Once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> therea f ter Once per hour FREQUE NCY In accordance wit h the Surveill ance Frequency Control Program.

In accordance wi t h the Survei 11 ance Frequency Contro l Program.

Amendment No. ~

RHR Shutdown Cooling System-Hot Shutdown 3.4.7 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.7 Residual Heat Removal (RHR) Shutdown Cooling System-Hot Shutdown LCO

3.4.7 APPLICABILITY

ACTIONS Two RHR shutdown cooling subsystems shal l be OPERABLE, and, with no recirculation pump in operation, at least one RHR shutdown cooling subsystem shall be in operation.

- - - - - - - - - - - - - - - - - - - -- - - - - - - -NOTES- - - - - - - - - - - - - - - - - - - - - - - - - - -

1.

Both required RHR shutdown cooling subsystems and recirculation pumps may be removed from operation for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> per 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> period.

2.

One required RHR shutdown cooling subsystem may be inopera ble for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> for performance of Survei 11 ances.

MODE 3, with reactor steam dome pressure less than the RHR shutdown cooling isolation pressure.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - NOTE- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Separate Condition entry is allowed for each RHR shutdown cooling subsystem.

CONDITION A.

One or two required A-:4-RHR shutdown cooling subsystems inoperable.

PBAPS UN IT 3 REQUIRED ACTION I Aitiate actieA te pestel"e l"CEjl:Ji l"CS Rll R s~1:JtE1ewA cee l iA§ Sl:JBS)'Stelfl( 5) te OPERABLE stat1:Js.

3.4-16 COMPLETION TIME l lfllfleE1i ate l,y (continued)

Amendment No. ~

ACTIONS CONDITION A.

(continued)

~ No RHR shutdown

~

cooling subsystem in operation.

AND No recirculation ump in operation.

B. Required Action and associated Completion Time of Condition A not met.

8.1 Initiate action to restore required RHR shutdown cooling subsystem(s) to OPERABLE status.

PBAPS UN IT 3

£--;-}

~

AND : ~

AND RHR Shutdown Cooling System-Hot Shutdown 3.4.7 REQUIRED ACT ION Verify an alternate method of decay heat removal is available for each required inoperable RHR shutdown cooling subsystem.

Be iA MODE 4.

Initiate action to restore one RHR shutdown cooling subsystem or one recirculation pump to operation.

Verify reactor coolant circulation by an alternate method.

Monitor reactor coolant temperature and pressure.

3.4-17 COMPLETION TIME 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />

~ AND Once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> thereafter 2 4 AOl:.11"5

~~lm~m-e-d-ia-t-el-y~~~~

Immediately 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> from discovery of no reactor coolant circulation AND Once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter Once per hour Amendment No. +4

RHR Shutdown Cooling System-Cold Shutdown 3.4.8 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.8 Residual Heat Removal (RHR) Shutdown Cooling System-Cold Shutdown LCO

3.4.8 APPLICABILITY

ACTIONS Two RHR shutdown cooling subsystems shall be OPERABLE, and, with no recirculation pump in operation, at least one RHR shutdown cooling subsystem shall be in operation.

- - - - - - - - - - - - - - - - - - - -- - - - - - - -NOTES- - - - - - - - - - - - - - - - - - - - - - - - - - -

1.

Both required RHR shutdown cooling subsystems and recirculation pumps may be removed from operation for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> per 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> period.

2.

One required RHR shutdown cooling subsystem may be inopera ble for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> for performance of Survei 11 ances.

MODE 4.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -NOTE- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Separate Condition entry is allowed for each RHR shutdown cooling subsystem.

CONDITION A.

One or two required A.1 RHR shutdown cooling subsystems inoperable.

11\\

REQUIRED ACTION Verify an alternate method of decay heat removal is ava i lable for each inoperable required RHR shutdown cooling subsystem.

COMPLETION TIME 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> Once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> thereafter I\\

(continued)

8. Required Action and associated Completion Time of Condition A not met.
8. 1 Initiate action to restore required RHR shutdown cooling subsystem(s) to OPERABLE status.

I Immediately I

PBAPS UN IT 3 3.4-19 Amendment No. ~

RHR Shutdown Cooli ng System-Col d Shutdown 3.4.8 ACT IONS (cont i nued)

COND IT ION REQUIR ED ACTI ON No RHR shutdown

-&-:+

Verify reactor b

cool i ng subsystem i n

~

coo l an t ci rculat i ng operat i on.

by an alternate method.

AN D No rec i rcu l at i on pump i n operat i on.

AN D

~

Mon i tor react or I~

coo l ant t emperature and pressure.

rc21 SURV EILLANC E REQ UI REMENTS SR 3.4.8.1 SR 3.4.8.2 PBAPS UN IT 3 SURV EI LLANC E Ver i fy one requ i red RHR shutdown cooli ng subsystem or rec i rcu l at ion pump i s operati ng.

- - - - - - - - - - - - - - - - - - - NOTE - - - - - - - - - - - - - - - - - - - -

HPSW system re l ated components are exc luded.

Verify requ i red RHR shutdown cool i ng subsystem locati ons suscept i bl e to gas accumulatio n are suffi ci ent ly f i l l ed with water.

3.4-20 COMP LETI ON TI ME 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> from di scovery of no reactor coo l ant ci rcu l at i on AND Once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter Once per hour FREQU ENCY In accordance wit h t he Surveill ance Frequency Contro l Program.

In accordance wit h t he Surveill ance Frequency Contro l Program.

Amendment No. B-B

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