ML16029A063

(External_Sender) UHS Slides for Sequoyah?

ML16029A063
Person / Time
Site:	Sequoyah
Issue date:	01/15/2016
From:	Hess T A Tennessee Valley Authority
To:	Andrew Hon Plant Licensing Branch II
References
Download: ML16029A063 (10)

Text

1 NRR-PMDAPEm Resource From: Hess, Thomas A <tahess@tva.gov>

Sent: Friday, January 15, 2016 2:53 PM To: Hon, Andrew

Subject:

[External_Sender] RE: UH S Slides for Sequoyah?

Attachments:

ERCW NRC Presubmittal Call on 1-19-16.pptx; U1 ITS 3 7 8 draft mark-up.pdf From: Hon, Andrew [1]

Sent: Thursday, January 14, 2016 8:54 AM To: Hess, Thomas A

Subject:

UHS Slides for Sequoyah?

TVA External Message. Please use caution when opening.

Hearing Identifier: NRR_PMDA Email Number: 2627 Mail Envelope Properties (AB3647DBA77C034D81332BD4C951CD765636E169)

Subject:

[External_Sender] RE: UHS Slides for Sequoyah? Sent Date: 1/15/2016 2:52:34 PM Received Date: 1/15/2016 2:53:02 PM From: Hess, Thomas A Created By: tahess@tva.gov Recipients: "Hon, Andrew" <Andrew.Hon@nrc.gov> Tracking Status: None

Post Office: TVACHAXCH9.main.tva.gov Files Size Date & Time MESSAGE 225 1/15/2016 2:53:02 PM ERCW NRC Presubmittal Call on 1-19-16.pptx 43334 U1 ITS 3 7 8 draft mark-up.pdf 1104726

Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received:

ERCW LAR Pre-submittal Meeting 1/19/16 LAR Objective

• To allow 7 Day Completion Time to restore One Train of ERCW to Operable Status to facilitate cleaning Shutdown Boards TS Changes*TS LCO 3.7.8 will be revised to add Condition A*Condition A will allow 7 Days to restore One ERCW System train to operable status provided Ultimate Heat Sink Temperature remains below 84 degrees F. *Condition A is only applicable:-during planned maintenance

-when opposite Unit is defueled or in MODE 6 following defueled with refueling water cavity level 23 ft. above top of reactor vessel flange Technical Basis

• During the cleaning of the SQN Shutdown Boards, one ERCW Pump with not be available.

• The remaining pump on the effected train is available

• Current operability criteria requires two operable ERCW pumps per train (with one pump fed from each shutdown board)

• Engineering Analysis has demonstrated that ERCW will continue to perform its design function with one pump functional provided a more restrictive UHS temperature limit imposed.

TS Bases and FSAR Changes

• The TS Bases will be revised to provided additional details regarding the application of condition A.

• FSAR will be revised to include details on the system alignments which have been evaluated to support the conclusion that ERCW will continue to perform its design function with one pump functional provided a more restrictive UHS temperature limit is imposed.

ERCW System3.7.8SEQUOYAH - UNIT 13.7.8-1 Amendment XXX3.7 PLANT SYSTEMS3.7.8Essential Raw Cooling Water (ERCW) SystemLCO 3.7.8TwoERCW Systemtrains shall be OPERABLE.APPLICABILITY:MODES1, 2, 3, and4.ACTIONSCONDITIONREQUIRED ACTIONCOMPLETION TIME-------------NOTES--------------1.Only applicable duringplanned maintenance.2.Only applicable whenUnit 2 is defueledor inMODE 6 followingdefueled with Unit 2 refueling water cavitylevel 23 ft. above top ofreactor vessel flange.---------------------------------------A. OneERCW Systemtrain inoperableA.1--------------NOTES-------------1.Enter applicableConditions and Required Actions ofLCO3.8.1, "ACSources - Operating,"for emergency dieselgenerator made inoperable by ERCWSystem.2.Enter applicableConditions andRequired Actions ofLCO3.4.6, "RCS Loops

- MODE4," for residualheat removal loopsmade inoperable byERCW System.-------------------------------------Restore ERCW Systemtrain to OPERABLE status.7 daysInsertednew conditional ACTIONACompletionTimeof 7daysforplanned maintenancewith oppositeunit defueledor subsequentto

defueled.A DD: A.1 Restore ERCW System train to OPERABLE status.

A ND A.2VerifyUltimateHeatSinkTemperatureis<84degreesF ERCW System3.7.8SEQUOYAH - UNIT 13.7.8-2 Amendment XXXCONDITIONREQUIRED ACTIONCOMPLETION TIMEB. OneERCW Systemtrain inoperable for reasons other than Condition A. B.1--------------NOTES-------------1.Enter applicableConditions andRequired Actions ofLCO3.8.1, "ACSources - Operating,"for emergency dieselgenerator madeinoperable by ERCWSystem.2.Enter applicableConditions andRequired Actions ofLCO3.4.6, "RCS Loops- MODE4," for residualheat removal loopsmade inoperable byERCW System.-------------------------------------Restore ERCW Systemtrain to OPERABLE status.72hoursC. Required Action and associated Completion Time of ConditionA not met.C.1Be in MODE3.

ANDC.2Be in MODE5.6 hour6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />s36 hoursRenumberedfromConditionAtoConditionBRenumberedfromConditionBtoConditionC ERCW System3.7.8SEQUOYAH -UNIT 13.7.8-3Amendment XXXSURVEILLANCE REQUIREMENTSSURVEILLANCE FREQUENCYSR 3.7.8.1-------------------------------NOTE------------------------------Isolation of ERCW Systemflow to individual components does not render the ERCW Systeminoperable.---------------------------------------------------------------------Verify each ERCW Systemmanual, power operated, and automatic valve in the flow path servicing safety related equipment, that is not locked, sealed, or otherwise secured in position, is in the correct position.In accordance with theSurveillance Frequency Control ProgramSR3.7.8.2Verify each ERCW Systemautomatic valve in the flow pathservicing safety related equipmentthat is not locked, sealed, or otherwise secured in position, actuates to the correct position on an actual or simulated actuation signal.In accordance with theSurveillance Frequency Control ProgramSR3.7.8.3Verify each ERCW Systempump starts automatically on an actual or simulated actuation signal.In accordance with theSurveillance Frequency Control Program 1 NRR-PMDAPEm Resource From: Hess, Thomas A <tahess@tva.gov>

Sent: Friday, January 15, 2016 2:53 PM To: Hon, Andrew

Subject:

[External_Sender] RE: UH S Slides for Sequoyah?

Attachments:

ERCW NRC Presubmittal Call on 1-19-16.pptx; U1 ITS 3 7 8 draft mark-up.pdf From: Hon, Andrew [2]

Sent: Thursday, January 14, 2016 8:54 AM To: Hess, Thomas A

Subject:

UHS Slides for Sequoyah?

TVA External Message. Please use caution when opening.

Hearing Identifier: NRR_PMDA Email Number: 2627 Mail Envelope Properties (AB3647DBA77C034D81332BD4C951CD765636E169)

Subject:

[External_Sender] RE: UHS Slides for Sequoyah? Sent Date: 1/15/2016 2:52:34 PM Received Date: 1/15/2016 2:53:02 PM From: Hess, Thomas A Created By: tahess@tva.gov Recipients: "Hon, Andrew" <Andrew.Hon@nrc.gov> Tracking Status: None

Post Office: TVACHAXCH9.main.tva.gov Files Size Date & Time MESSAGE 225 1/15/2016 2:53:02 PM ERCW NRC Presubmittal Call on 1-19-16.pptx 43334 U1 ITS 3 7 8 draft mark-up.pdf 1104726

Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received:

ERCW LAR Pre-submittal Meeting 1/19/16 LAR Objective

• To allow 7 Day Completion Time to restore One Train of ERCW to Operable Status to facilitate cleaning Shutdown Boards TS Changes*TS LCO 3.7.8 will be revised to add Condition A*Condition A will allow 7 Days to restore One ERCW System train to operable status provided Ultimate Heat Sink Temperature remains below 84 degrees F. *Condition A is only applicable:-during planned maintenance

-when opposite Unit is defueled or in MODE 6 following defueled with refueling water cavity level 23 ft. above top of reactor vessel flange Technical Basis

• During the cleaning of the SQN Shutdown Boards, one ERCW Pump with not be available.

• The remaining pump on the effected train is available

• Current operability criteria requires two operable ERCW pumps per train (with one pump fed from each shutdown board)

• Engineering Analysis has demonstrated that ERCW will continue to perform its design function with one pump functional provided a more restrictive UHS temperature limit imposed.

TS Bases and FSAR Changes

• The TS Bases will be revised to provided additional details regarding the application of condition A.

• FSAR will be revised to include details on the system alignments which have been evaluated to support the conclusion that ERCW will continue to perform its design function with one pump functional provided a more restrictive UHS temperature limit is imposed.

ERCW System3.7.8SEQUOYAH - UNIT 13.7.8-1 Amendment XXX3.7 PLANT SYSTEMS3.7.8Essential Raw Cooling Water (ERCW) SystemLCO 3.7.8TwoERCW Systemtrains shall be OPERABLE.APPLICABILITY:MODES1, 2, 3, and4.ACTIONSCONDITIONREQUIRED ACTIONCOMPLETION TIME-------------NOTES--------------1.Only applicable duringplanned maintenance.2.Only applicable whenUnit 2 is defueledor inMODE 6 followingdefueled with Unit 2 refueling water cavitylevel 23 ft. above top ofreactor vessel flange.---------------------------------------A. OneERCW Systemtrain inoperableA.1--------------NOTES-------------1.Enter applicableConditions and Required Actions ofLCO3.8.1, "ACSources - Operating,"for emergency dieselgenerator made inoperable by ERCWSystem.2.Enter applicableConditions andRequired Actions ofLCO3.4.6, "RCS Loops

- MODE4," for residualheat removal loopsmade inoperable byERCW System.-------------------------------------Restore ERCW Systemtrain to OPERABLE status.7 daysInsertednew conditional ACTIONACompletionTimeof 7daysforplanned maintenancewith oppositeunit defueledor subsequentto

defueled.A DD: A.1 Restore ERCW System train to OPERABLE status.

A ND A.2VerifyUltimateHeatSinkTemperatureis<84degreesF ERCW System3.7.8SEQUOYAH - UNIT 13.7.8-2 Amendment XXXCONDITIONREQUIRED ACTIONCOMPLETION TIMEB. OneERCW Systemtrain inoperable for reasons other than Condition A. B.1--------------NOTES-------------1.Enter applicableConditions andRequired Actions ofLCO3.8.1, "ACSources - Operating,"for emergency dieselgenerator madeinoperable by ERCWSystem.2.Enter applicableConditions andRequired Actions ofLCO3.4.6, "RCS Loops- MODE4," for residualheat removal loopsmade inoperable byERCW System.-------------------------------------Restore ERCW Systemtrain to OPERABLE status.72hoursC. Required Action and associated Completion Time of ConditionA not met.C.1Be in MODE3.

ANDC.2Be in MODE5.6 hour6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />s36 hoursRenumberedfromConditionAtoConditionBRenumberedfromConditionBtoConditionC ERCW System3.7.8SEQUOYAH -UNIT 13.7.8-3Amendment XXXSURVEILLANCE REQUIREMENTSSURVEILLANCE FREQUENCYSR 3.7.8.1-------------------------------NOTE------------------------------Isolation of ERCW Systemflow to individual components does not render the ERCW Systeminoperable.---------------------------------------------------------------------Verify each ERCW Systemmanual, power operated, and automatic valve in the flow path servicing safety related equipment, that is not locked, sealed, or otherwise secured in position, is in the correct position.In accordance with theSurveillance Frequency Control ProgramSR3.7.8.2Verify each ERCW Systemautomatic valve in the flow pathservicing safety related equipmentthat is not locked, sealed, or otherwise secured in position, actuates to the correct position on an actual or simulated actuation signal.In accordance with theSurveillance Frequency Control ProgramSR3.7.8.3Verify each ERCW Systempump starts automatically on an actual or simulated actuation signal.In accordance with theSurveillance Frequency Control Program