ML063620130: Difference between revisions

From kanterella
Jump to navigation Jump to search
(Created page by program invented by StriderTol)
(Created page by program invented by StriderTol)
 
Line 18: Line 18:


=Text=
=Text=
{{#Wiki_filter:'EqJonathan Rowley -Seipt.-2-5call summary 15ýqTe i From: To: Date:  
{{#Wiki_filter:'EqJonathan Rowley - Seipt.-2-5call summary                                               15ýqTe i From:               Jonathan Rowley To:                 mhamer@entergy.com Date:               10/18/2006 3:28:47 PM


==Subject:==
==Subject:==
Jonathan Rowley mhamer@entergy.com 10/18/2006 3:28:47 PM Sept. 25 call summary Mike Please review and provide comments on the attached conference call summary.Jonathan Rowley, Project Manager License Renewal Branch B Division of License Renewal Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission (301) 415-4053 00008.TMP Pa6qe 1 ]t~D\GW~O~TMP ane ill I Mail Envelope Properties (4536806F.C9F:
Sept. 25 call summary Mike Please review and provide comments on the attached conference call summary.
12: 35182)
Jonathan Rowley, Project Manager License Renewal Branch B Division of License Renewal Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission (301) 415-4053
 
00008.TMP                                                                                   Pa6qe 1]
t~D\GW~O~TMP                                                                                       ane ill I Mail Envelope Properties     (4536806F.C9F: 12: 35182)


==Subject:==
==Subject:==
Creation Date From: Created By: Sept. 25 call summary 10/18/2006 3:28:47 PM Jonathan Rowley JGR @nrc.gov Recipients entergy.com PM mhamer (mhamer@enftergy.com)
Sept. 25 call summary Creation Date          10/18/2006 3:28:47 PM From:                  Jonathan Rowley Created By:            JGR @nrc.gov Recipients                                       Action                Date & Time entergy.com                                       Transferred           10/18/2006 3:29:22 PM mhamer (mhamer@enftergy.com)
Action Transferred Date & Time 10/18/2006 3:29:22 Post Office Delivered Route entergy.com Files Size Date & Time MESSAGE 829 10/18/2006 3:28:47 PM Summary of Telephone Conference  
Post Office                                       Delivered           Route entergy.com Files                           Size               Date & Time MESSAGE                         829               10/18/2006 3:28:47 PM Summary of Telephone Conference - September 25, 2006 (VY).wpd         27994 10/18/2006 3:27:14 PM Options Auto Delete:                   No Expiration Date:               None Notify Recipients:             Yes Priority:                       Standard ReplyRequested:                 No Return Notification:
-September 25, 2006 (VY).wpd 27994 10/18/2006 3:27:14 PM Options Auto Delete: No Expiration Date: None Notify Recipients:
Yes Priority:
Standard ReplyRequested:
No Return Notification:
Send Notification when Opened Concealed  
Send Notification when Opened Concealed  


==Subject:==
==Subject:==
No Security:
No Security:                       Standard To Be Delivered:               Immediate Status Tracking:               Delivered & Opened
Standard To Be Delivered:
 
Status Tracking: Immediate Delivered  
[Foathan Rowley - Summary of Telephone Conference - September 25, 2006 (VY).wpdPa                                     ýaýqeý I LICENSEE:       Entergy Nuclear Operations, Inc.
& Opened
FACILITY:       Vermont Yankee Nuclear Power Station
[Foathan Rowley -Summary of Telephone Conference  
-September 25, 2006 (VY).wpdPa
ýa ýqeý I LICENSEE:
Entergy Nuclear Operations, Inc.FACILITY: Vermont Yankee Nuclear Power Station  


==SUBJECT:==
==SUBJECT:==


==SUMMARY==
==SUMMARY==
OF A TELEPHONE CONFERENCE CALL HELD ON SEPTEMBER 25, 2006, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND ENTERGY NUCLEAR OPERATIONS, INC., CONCERNING INFORMATION PERTAINING TO THE VERMONT YANKEE NUCLEAR POWER STATION LICENSE RENEWAL APPLICATION The U.S. Nuclear Regulatory Commission staff (the staff) and representatives of Entergy Nuclear Operations, Inc., (ENO) held a telephone conference call on September 25, 2006, to discuss and clarify the staff's requests for additional information (RAIs) concerning the Vermont.Yankee Nuclear Station (VYNPS) license renewal application (LRA). The conference call was..xw.: useful in clarifying the staff's questions.
OF A TELEPHONE CONFERENCE CALL HELD ON SEPTEMBER 25, 2006, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND ENTERGY NUCLEAR OPERATIONS, INC., CONCERNING INFORMATION PERTAINING TO THE VERMONT YANKEE NUCLEAR POWER STATION LICENSE RENEWAL APPLICATION The U.S. Nuclear Regulatory Commission staff (the staff) and representatives of Entergy Nuclear Operations, Inc., (ENO) held a telephone conference call on September 25, 2006, to discuss and clarify the staff's requests for additional information (RAIs) concerning the Vermont.
Enclosure 1 provides a listing of the conference call participants.
Yankee Nuclear Station (VYNPS) license renewal application (LRA). The conference call was..xw.:
Enclosure 2 contains a listings.of the. issues discussed with the applicant, including a brief discussion of the items' status. .,I: The applicant had an opportunity to comment on this summary.Jonathan Rowley, Project Manager License Renewal Branch B Division of License Renewal Office of Nuclear Reactor Regulation Docket No. 50-271  
useful in clarifying the staff's questions.
Enclosure 1 provides a listing of the conference call participants. Enclosure 2 contains a listings.
of the. issues discussed with the applicant, including a brief discussion of the items' status. .,I:
The applicant had an opportunity to comment on this summary.
Jonathan Rowley, Project Manager License Renewal Branch B Division of License Renewal Office of Nuclear Reactor Regulation Docket No. 50-271


==Enclosures:==
==Enclosures:==


As stated cc w/encls: See next page
As stated cc w/encls: See next page
_Rowle -- Sum m a--ry-o-f-Tele.phon--e Co-nference---S-eptemb--e-r-2-5--,-
 
20-0-6---(-V--Y---)-.w--
_Rowle --Sum m a--ry-o-f- Tele.phon--e Co-nference---S-eptemb--e-r-2-5--,- 20-0-6---(-V--Y---)-.w-- Page 2 ji Pa~2~~
Page 2 ji VJo~at~n Rowley -Summary of Telephone Conference  
VJo~at~n Rowley Summary of Telephone Conference
-SeptembeK25, 2OO~ ('J'Yjwpd Pa~2~~LIST OF PARTICIPANTS FOR TELEPHONE CONFERENCE CALL TO DISCUSS THE VERMONT YANKEE NUCLEAR POWER STATION LICENSE RENEWAL APPLICATION September 25, 2006 Participants Jonathan Rowley Lambros Lois Ganesh Cheruvenki Naeem Iqbal Andy Taylor[ori Potts Dave King Ron Finnin Larry Luckins Affiliations U.S. Nuclear Regulatory Commission (NRC)NRC NRC NRC Entergy Nuclear Operations, Inc. (ENO)ENO ENO ENO ENO SJonathan Rowley TelephoneConference  
              -                                              - SeptembeK25, 2OO~ ('J'Yjwpd LIST OF PARTICIPANTS FOR TELEPHONE CONFERENCE CALL TO DISCUSS THE VERMONT YANKEE NUCLEAR POWER STATION LICENSE RENEWAL APPLICATION September 25, 2006 Participants                                 Affiliations Jonathan Rowley                               U.S. Nuclear Regulatory Commission (NRC)
-September 25, 2006 (VY).wpd gj VERMONT YANKEE NUCLEAR POWER STATION LICENSE RENEWAL APPLICATION September 25, 2006 The U.S. Nuclear Regulatory Commission staff (the staff) and representatives of Entergy Nuclear Operations, Inc., held a telephone conference call on September 25, 2006, to discuss and clarify the staff's requests for additional information (RAIs) and other issues concerning the Vermont Yankee Nuclear Power Station (VYNPS) license renewal application (LRA). The following issues were discussed during the telephone conference call: RAI 2.3.3.8-1 License renewal application (LRA) drawing LRA-G-1 91163-SH-01  
Lambros Lois                                 NRC Ganesh Cheruvenki                             NRC Naeem Iqbal                                   NRC Andy Taylor                                   Entergy Nuclear Operations, Inc. (ENO)
-0, "Fire Protection System Inner Loop," shows the yard fire hydrants as out of scope (i.e., not colored in purple). Verify whether the yard fire hydrants are in scope of license renewal in accordance with Title 10 Code of Federal Regulations Part 54.4(a) (10 CFR 54.4(a)) and subject to an aging management review (AMR) in accordance with 10 CFR 54.21(a)(1).
[ori Potts                                   ENO Dave King                                     ENO Ron Finnin                                   ENO Larry Luckins                                 ENO
If they are excluded from the scope of license renewal and not subject to an AMR, please provide justification for the exclusion.
 
Discussion:
SJonathan Rowley                TelephoneConference - September 25, 2006 (VY).wpd                                     gj VERMONT YANKEE NUCLEAR POWER STATION LICENSE RENEWAL APPLICATION September 25, 2006 The U.S. Nuclear Regulatory Commission staff (the staff) and representatives of Entergy Nuclear Operations, Inc., held a telephone conference call on September 25, 2006, to discuss and clarify the staff's requests for additional information (RAIs) and other issues concerning the Vermont Yankee Nuclear Power Station (VYNPS) license renewal application (LRA). The following issues were discussed during the telephone conference call:
The staff did not find the applicant's response in their September 20, 2006 letter (License Renewal Application, Amendment
RAI 2.3.3.8-1 License renewal application (LRA) drawing LRA-G-1 91163-SH-01 -0, "Fire Protection System Inner Loop," shows the yard fire hydrants as out of scope (i.e., not colored in purple). Verify whether the yard fire hydrants are in scope of license renewal in accordance with Title 10 Code of FederalRegulations Part 54.4(a) (10 CFR 54.4(a)) and subject to an aging management review (AMR) in accordance with 10 CFR 54.21(a)(1). If they are excluded from the scope of license renewal and not subject to an AMR, please provide justification for the exclusion.
: 14) to this RAI acceptable.
Discussion: The staff did not find the applicant's response in their September 20, 2006 letter (License Renewal Application, Amendment 14) to this RAI acceptable. The staff reiterated its position. The applicant will attempt to provide an adequate supplemental response to this concern in a future letter to the NRC.
The staff reiterated its position.
RAI B.1.2-1 The applicant states that the Control Rod Drive (CRD) return line nozzle has been capped at VYNPS. The staff requests that the applicant provide the following information regarding the cap and the weld.
The applicant will attempt to provide an adequate supplemental response to this concern in a future letter to the NRC.RAI B.1.2-1 The applicant states that the Control Rod Drive (CRD) return line nozzle has been capped at VYNPS. The staff requests that the applicant provide the following information regarding the cap and the weld.(1) Describe the configuration, location and material of construction of the capped nozzle.This should include the existing base material for the nozzle, piping (if piping remnants exist) and cap material, and any welds.(2) Describe how the aging effects for this weld and the cap are managed in accordance with the guidelines of BWRVIP-75, "BWR Vessel and Internals Project (BWRVIP), Technical Basis for Revisions to Generic Letter 88-01 Inspection Schedule." (3) Discuss whether the event at Pilgrim (leaking weld at capped nozzle, September 30, 2003)is applicable to VYNPS. The staff issued Information Notice 2004-08, "Reactor Coolant Pressure Boundary Leakage Attributable to Propagation of Cracking in Reactor Vessel Nozzle Welds," dated April 22, 2004, which states that the cracking occurred in an Alloy 182 weld that was previously repaired extensively.
(1)     Describe the configuration, location and material of construction of the capped nozzle.
Discuss experience with previous leakage at the VYNPS capped nozzle, if any.Include in your discussion the past inspection techniques applied, the results obtained, and mitigative strategies imposed. Provide information as to how the plant-specific experience related to this aging effect impacts the attributes specified in AMP B.1.2, "BWR CRD Return line Nozzles." Enclosure 2
This should include the existing base material for the nozzle, piping (if piping remnants exist) and cap material, and any welds.
nRowley -Sumiiimary of Telephone Conference  
(2)     Describe how the aging effects for this weld and the cap are managed in accordance with the guidelines of BWRVIP-75, "BWR Vessel and Internals Project (BWRVIP),
-September 25, 2006 (VY).wpd Discussion:
Technical Basis for Revisions to Generic Letter 88-01 Inspection Schedule."
The staff did not find the applicant's response in their September 20, 2006 letter (License Renewal Application, Amendment
(3)     Discuss whether the event at Pilgrim (leaking weld at capped nozzle, September 30, 2003) is applicable to VYNPS. The staff issued Information Notice 2004-08, "Reactor Coolant Pressure Boundary Leakage Attributable to Propagation of Cracking in Reactor Vessel Nozzle Welds," dated April 22, 2004, which states that the cracking occurred in an Alloy 182 weld that was previously repaired extensively.
: 14) to this RAI acceptable.
Discuss experience with previous leakage at the VYNPS capped nozzle, if any.
The staff reiterated its position that yard fire hydrants casing require an AMR. The applicant believes that the hydrants are not required for compliance with 10 CFR 50.48 and thus no AMR is reuired. The applicant will attempt to provide an adequate supplemental response to this concern in a future letter to the NRC.RAI B.1.2-2 Section 4 of the Generic Aging Lessens Learned Report (GALL) AMP XI.M6, "BWR Control Rod Drive (CRD) Return Line Nozzle," recommends that the aging degradation in the CRD return line nozzles should be monitored per the inspection recommendations specified in NUREG-0619, "BWR Feedwater Nozzle and Control Rod Drive Return Line Nozzle Cracking." Section 8.2(2) of NUREG-0619 recommends that ultrasonic testing (UT) should be performed on the welded connection joining the rerouted CRD return line to the system which then returns the flow to the reactor vessel during each refueling outage.In a letter dated January 15, 1982, the applicant made'a commitment to the staff indicating that-it will perform UT examination of the CRD to the reactor water cleanup (RWCU) weld joint as discussed in NUREG-0619 for three consecutive refuel outages. The applicant further stated that upon the completion of these inspections, the inspection frquency will be reassessed based-on the inspection results. In AMP B.1 .2, "BWR CRD,.ReturnLine Nozzle," the applicant stated.that it inspected the CRD return line to the RWCU weld joint using UT methods for three consecutiye refuel outages and found no indications.
Include in your discussion the past inspection techniques applied, the results obtained, and mitigative strategies imposed. Provide information as to how the plant-specific experience related to this aging effect impacts the attributes specified in AMP B.1.2, "BWR CRD Return line Nozzles."
Since no indications were found, the applicant intends to take exception to GALL AMP XI.M6; in which the applicant proposes not to.inspect the aforementioned weld joint during the extended period of operation.
Enclosure 2
The staff : :., determined that the following information regarding the subject weld is required to complete its:-.review.(1) The applicant should provide technical justification for not performing the UT examination of the subject weld as recommended by the GALL AMP XI.M6 and NUREG-0619 during the extended period of operation.
 
(2) The applicant should confirm that the CRD return lines that are connected to RWCU piping system that fall under the jurisdiction of the ASME Code, Section XI boundary will be inspected per the ASME Section XI Code.Discussion:
nRowley -Sumiiimary of Telephone Conference     - September 25, 2006 (VY).wpd Discussion: The staff did not find the applicant's response in their September 20, 2006 letter (License Renewal Application, Amendment 14) to this RAI acceptable. The staff reiterated its position that yard fire hydrants casing require an AMR. The applicant believes that the hydrants are not required for compliance with 10 CFR 50.48 and thus no AMR is reuired. The applicant will attempt to provide an adequate supplemental response to this concern in a future letter to the NRC.
The staff did not find the applicant's response in their September 20, 2006 letter (License Renewal Application, Amendment
RAI B.1.2-2 Section 4 of the Generic Aging Lessens Learned Report (GALL) AMP XI.M6, "BWR Control Rod Drive (CRD) Return Line Nozzle," recommends that the aging degradation in the CRD return line nozzles should be monitored per the inspection recommendations specified in NUREG-0619, "BWR Feedwater Nozzle and Control Rod Drive Return Line Nozzle Cracking."
: 14) to this RAI acceptable.
Section 8.2(2) of NUREG-0619 recommends that ultrasonic testing (UT) should be performed on the welded connection joining the rerouted CRD return line to the system which then returns the flow to the reactor vessel during each refueling outage.
The staff reiterated its position.
In a letter dated January 15, 1982, the applicant made'a commitment to the staff indicating that
The applicant will attempt to provide an adequate supplemental response to this concern in a future letter to the NRC.RAI 4.2-1 In Section 4.2.1 of the VYNPS LRA it is stated that "...the reactor fluence .... has been projected to the end of the period of extended operation." In Sections 4.2.1 and 4.2.2 of the LRA there is no discussion of how this extrapolation was performed.
      -itwill perform UT examination of the CRD to the reactor water cleanup (RWCU) weld joint as discussed in NUREG-0619 for three consecutive refuel outages. The applicant further stated that upon the completion of these inspections, the inspection frquency will be reassessed based
Vermont Yankee has been approved for operation at an extended power uprate. In general, power uprates are based on revised axial power profiles with higher axial peaks at a lower axial location.
      -on the inspection results. In AMP B.1 .2, "BWR CRD,.ReturnLine Nozzle," the applicant stated.
Therefore, extrapolation of the existing axial profile may not provide an accurate projection.
that it inspected the CRD return line to the RWCU weld joint using UT methods for three consecutiye refuel outages and found no indications. Since no indications were found, the applicant intends to take exception to GALL AMP XI.M6; in which the applicant proposes not to.
4 IJonathanRowley  
inspect the aforementioned weld joint during the extended period of operation. The staff : :.,
-Summary of Telephone Conference  
determined that the following information regarding the subject weld is required to complete its:-.
-September 25, 2006 (VY).wpda2
review.
---Dý4 1 In view of the above, please respond to the following:
(1)     The applicant should provide technical justification for not performing the UT examination of the subject weld as recommended by the GALL AMP XI.M6 and NUREG-0619 during the extended period of operation.
(1) Compare the axial power profiles (at the peak power azimuthal location) and confirm that the extrapolation remains valid.(2) Confirm that the projected operating plan will support the assumed axial power profile to the end of the period of extended operation.
(2)     The applicant should confirm that the CRD return lines that are connected to RWCU piping system that fall under the jurisdiction of the ASME Code, Section XI boundary will be inspected per the ASME Section XI Code.
Discussion:
Discussion: The staff did not find the applicant's response in their September 20, 2006 letter (License Renewal Application, Amendment 14) to this RAI acceptable. The staff reiterated its position. The applicant will attempt to provide an adequate supplemental response to this concern in a future letter to the NRC.
The staff did not find the applicant's response in their September 20, 2006 letter (License Renewal Application, Amendment
RAI 4.2-1 In Section 4.2.1 of the VYNPS LRA it is stated that "...the reactor fluence .... has been projected to the end of the period of extended operation." In Sections 4.2.1 and 4.2.2 of the LRA there is no discussion of how this extrapolation was performed. Vermont Yankee has been approved for operation at an extended power uprate. In general, power uprates are based on revised axial power profiles with higher axial peaks at a lower axial location. Therefore, extrapolation of the existing axial profile may not provide an accurate projection.
: 14) to this RAI acceptable.
4
The staff was unsure if the applicant had accounted for the shift in axial power profile due to the power uprate when performing the extrapolation.
 
The applicant will provide the staff the report mentioned in the response for verification of the values given in the response.
IJonathanRowley - Summary of Telephone Conference - September 25, 2006 (VY).wpda2                                 --- Dý4 1 In view of the above, please respond to the following:
The staff will consider the item resolved if the values are verified.5}}
(1)     Compare the axial power profiles (at the peak power azimuthal location) and confirm that the extrapolation remains valid.
(2)     Confirm that the projected operating plan will support the assumed axial power profile to the end of the period of extended operation.
Discussion: The staff did not find the applicant's response in their September 20, 2006 letter (License Renewal Application, Amendment 14) to this RAI acceptable. The staff was unsure if the applicant had accounted for the shift in axial power profile due to the power uprate when performing the extrapolation. The applicant will provide the staff the report mentioned in the response for verification of the values given in the response. The staff will consider the item resolved if the values are verified.
5}}

Latest revision as of 11:58, 23 November 2019

E-Mail: (PA) Sept. 25 Call Summary (VY)
ML063620130
Person / Time
Site: Vermont Yankee Entergy icon.png
Issue date: 10/18/2006
From: Rowley J
NRC/NRR/ADRO/DLR/RLRB
To: Hamer M
Entergy Nuclear Vermont Yankee
References
TAC MD2297
Download: ML063620130 (7)


Text

'EqJonathan Rowley - Seipt.-2-5call summary 15ýqTe i From: Jonathan Rowley To: mhamer@entergy.com Date: 10/18/2006 3:28:47 PM

Subject:

Sept. 25 call summary Mike Please review and provide comments on the attached conference call summary.

Jonathan Rowley, Project Manager License Renewal Branch B Division of License Renewal Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission (301) 415-4053

00008.TMP Pa6qe 1]

t~D\GW~O~TMP ane ill I Mail Envelope Properties (4536806F.C9F: 12: 35182)

Subject:

Sept. 25 call summary Creation Date 10/18/2006 3:28:47 PM From: Jonathan Rowley Created By: JGR @nrc.gov Recipients Action Date & Time entergy.com Transferred 10/18/2006 3:29:22 PM mhamer (mhamer@enftergy.com)

Post Office Delivered Route entergy.com Files Size Date & Time MESSAGE 829 10/18/2006 3:28:47 PM Summary of Telephone Conference - September 25, 2006 (VY).wpd 27994 10/18/2006 3:27:14 PM Options Auto Delete: No Expiration Date: None Notify Recipients: Yes Priority: Standard ReplyRequested: No Return Notification:

Send Notification when Opened Concealed

Subject:

No Security: Standard To Be Delivered: Immediate Status Tracking: Delivered & Opened

[Foathan Rowley - Summary of Telephone Conference - September 25, 2006 (VY).wpdPa ýaýqeý I LICENSEE: Entergy Nuclear Operations, Inc.

FACILITY: Vermont Yankee Nuclear Power Station

SUBJECT:

SUMMARY

OF A TELEPHONE CONFERENCE CALL HELD ON SEPTEMBER 25, 2006, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND ENTERGY NUCLEAR OPERATIONS, INC., CONCERNING INFORMATION PERTAINING TO THE VERMONT YANKEE NUCLEAR POWER STATION LICENSE RENEWAL APPLICATION The U.S. Nuclear Regulatory Commission staff (the staff) and representatives of Entergy Nuclear Operations, Inc., (ENO) held a telephone conference call on September 25, 2006, to discuss and clarify the staff's requests for additional information (RAIs) concerning the Vermont.

Yankee Nuclear Station (VYNPS) license renewal application (LRA). The conference call was..xw.:

useful in clarifying the staff's questions.

Enclosure 1 provides a listing of the conference call participants. Enclosure 2 contains a listings.

of the. issues discussed with the applicant, including a brief discussion of the items' status. .,I:

The applicant had an opportunity to comment on this summary.

Jonathan Rowley, Project Manager License Renewal Branch B Division of License Renewal Office of Nuclear Reactor Regulation Docket No. 50-271

Enclosures:

As stated cc w/encls: See next page

_Rowle --Sum m a--ry-o-f- Tele.phon--e Co-nference---S-eptemb--e-r-2-5--,- 20-0-6---(-V--Y---)-.w-- Page 2 ji Pa~2~~

VJo~at~n Rowley Summary of Telephone Conference

- - SeptembeK25, 2OO~ ('J'Yjwpd LIST OF PARTICIPANTS FOR TELEPHONE CONFERENCE CALL TO DISCUSS THE VERMONT YANKEE NUCLEAR POWER STATION LICENSE RENEWAL APPLICATION September 25, 2006 Participants Affiliations Jonathan Rowley U.S. Nuclear Regulatory Commission (NRC)

Lambros Lois NRC Ganesh Cheruvenki NRC Naeem Iqbal NRC Andy Taylor Entergy Nuclear Operations, Inc. (ENO)

[ori Potts ENO Dave King ENO Ron Finnin ENO Larry Luckins ENO

SJonathan Rowley TelephoneConference - September 25, 2006 (VY).wpd gj VERMONT YANKEE NUCLEAR POWER STATION LICENSE RENEWAL APPLICATION September 25, 2006 The U.S. Nuclear Regulatory Commission staff (the staff) and representatives of Entergy Nuclear Operations, Inc., held a telephone conference call on September 25, 2006, to discuss and clarify the staff's requests for additional information (RAIs) and other issues concerning the Vermont Yankee Nuclear Power Station (VYNPS) license renewal application (LRA). The following issues were discussed during the telephone conference call:

RAI 2.3.3.8-1 License renewal application (LRA) drawing LRA-G-1 91163-SH-01 -0, "Fire Protection System Inner Loop," shows the yard fire hydrants as out of scope (i.e., not colored in purple). Verify whether the yard fire hydrants are in scope of license renewal in accordance with Title 10 Code of FederalRegulations Part 54.4(a) (10 CFR 54.4(a)) and subject to an aging management review (AMR) in accordance with 10 CFR 54.21(a)(1). If they are excluded from the scope of license renewal and not subject to an AMR, please provide justification for the exclusion.

Discussion: The staff did not find the applicant's response in their September 20, 2006 letter (License Renewal Application, Amendment 14) to this RAI acceptable. The staff reiterated its position. The applicant will attempt to provide an adequate supplemental response to this concern in a future letter to the NRC.

RAI B.1.2-1 The applicant states that the Control Rod Drive (CRD) return line nozzle has been capped at VYNPS. The staff requests that the applicant provide the following information regarding the cap and the weld.

(1) Describe the configuration, location and material of construction of the capped nozzle.

This should include the existing base material for the nozzle, piping (if piping remnants exist) and cap material, and any welds.

(2) Describe how the aging effects for this weld and the cap are managed in accordance with the guidelines of BWRVIP-75, "BWR Vessel and Internals Project (BWRVIP),

Technical Basis for Revisions to Generic Letter 88-01 Inspection Schedule."

(3) Discuss whether the event at Pilgrim (leaking weld at capped nozzle, September 30, 2003) is applicable to VYNPS. The staff issued Information Notice 2004-08, "Reactor Coolant Pressure Boundary Leakage Attributable to Propagation of Cracking in Reactor Vessel Nozzle Welds," dated April 22, 2004, which states that the cracking occurred in an Alloy 182 weld that was previously repaired extensively.

Discuss experience with previous leakage at the VYNPS capped nozzle, if any.

Include in your discussion the past inspection techniques applied, the results obtained, and mitigative strategies imposed. Provide information as to how the plant-specific experience related to this aging effect impacts the attributes specified in AMP B.1.2, "BWR CRD Return line Nozzles."

Enclosure 2

nRowley -Sumiiimary of Telephone Conference - September 25, 2006 (VY).wpd Discussion: The staff did not find the applicant's response in their September 20, 2006 letter (License Renewal Application, Amendment 14) to this RAI acceptable. The staff reiterated its position that yard fire hydrants casing require an AMR. The applicant believes that the hydrants are not required for compliance with 10 CFR 50.48 and thus no AMR is reuired. The applicant will attempt to provide an adequate supplemental response to this concern in a future letter to the NRC.

RAI B.1.2-2 Section 4 of the Generic Aging Lessens Learned Report (GALL) AMP XI.M6, "BWR Control Rod Drive (CRD) Return Line Nozzle," recommends that the aging degradation in the CRD return line nozzles should be monitored per the inspection recommendations specified in NUREG-0619, "BWR Feedwater Nozzle and Control Rod Drive Return Line Nozzle Cracking."

Section 8.2(2) of NUREG-0619 recommends that ultrasonic testing (UT) should be performed on the welded connection joining the rerouted CRD return line to the system which then returns the flow to the reactor vessel during each refueling outage.

In a letter dated January 15, 1982, the applicant made'a commitment to the staff indicating that

-itwill perform UT examination of the CRD to the reactor water cleanup (RWCU) weld joint as discussed in NUREG-0619 for three consecutive refuel outages. The applicant further stated that upon the completion of these inspections, the inspection frquency will be reassessed based

-on the inspection results. In AMP B.1 .2, "BWR CRD,.ReturnLine Nozzle," the applicant stated.

that it inspected the CRD return line to the RWCU weld joint using UT methods for three consecutiye refuel outages and found no indications. Since no indications were found, the applicant intends to take exception to GALL AMP XI.M6; in which the applicant proposes not to.

inspect the aforementioned weld joint during the extended period of operation. The staff : :.,

determined that the following information regarding the subject weld is required to complete its:-.

review.

(1) The applicant should provide technical justification for not performing the UT examination of the subject weld as recommended by the GALL AMP XI.M6 and NUREG-0619 during the extended period of operation.

(2) The applicant should confirm that the CRD return lines that are connected to RWCU piping system that fall under the jurisdiction of the ASME Code,Section XI boundary will be inspected per the ASME Section XI Code.

Discussion: The staff did not find the applicant's response in their September 20, 2006 letter (License Renewal Application, Amendment 14) to this RAI acceptable. The staff reiterated its position. The applicant will attempt to provide an adequate supplemental response to this concern in a future letter to the NRC.

RAI 4.2-1 In Section 4.2.1 of the VYNPS LRA it is stated that "...the reactor fluence .... has been projected to the end of the period of extended operation." In Sections 4.2.1 and 4.2.2 of the LRA there is no discussion of how this extrapolation was performed. Vermont Yankee has been approved for operation at an extended power uprate. In general, power uprates are based on revised axial power profiles with higher axial peaks at a lower axial location. Therefore, extrapolation of the existing axial profile may not provide an accurate projection.

4

IJonathanRowley - Summary of Telephone Conference - September 25, 2006 (VY).wpda2 --- Dý4 1 In view of the above, please respond to the following:

(1) Compare the axial power profiles (at the peak power azimuthal location) and confirm that the extrapolation remains valid.

(2) Confirm that the projected operating plan will support the assumed axial power profile to the end of the period of extended operation.

Discussion: The staff did not find the applicant's response in their September 20, 2006 letter (License Renewal Application, Amendment 14) to this RAI acceptable. The staff was unsure if the applicant had accounted for the shift in axial power profile due to the power uprate when performing the extrapolation. The applicant will provide the staff the report mentioned in the response for verification of the values given in the response. The staff will consider the item resolved if the values are verified.

5