ML11105A171

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2011/03/16 Watts Bar 2 OL - TVA Letter to NRC_03-15-11_WBN U2 FSAR A103
ML11105A171
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Site: Watts Bar Tennessee Valley Authority icon.png
Issue date: 03/16/2011
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Division of Operating Reactor Licensing
References
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Text

1 WBN2Public Resource From: Boyd, Desiree L [dlboyd@tva.gov]

Sent: Wednesday, March 16, 2011 6:15 AM To: Epperson, Dan; Poole, Justin; Raghavan, Rags; Milano, Patrick; Campbell, Stephen Cc: Crouch, William D; Boyd, Desiree L; Hamill, Carol L; Stockton, Rickey A

Subject:

TVA letter to NRC_03-15-11_WBN U2 FSAR A103 Attachments:

03-15-11_WBN U2 FSAR A103_Final.pdf PleaseseeattachedTVAletterthatwassenttotheNRCtoday.

ThankYou, ~*~*~*~*~*~*~*~*~*~*~*~*~*~*~Désireé L. Boyd WBN2LicensingSupportSunTechnicalServicesdlboyd@tva.gov4233658764~*~*~*~*~*~*~*~*~*~*~*~*~*~*~

Hearing Identifier: Watts_Bar_2_Operating_LA_Public Email Number: 331 Mail Envelope Properties (7AB41F650F76BD44B5BCAB7C0CCABFAF1C935921)

Subject:

TVA letter to NRC_03-15-11_WBN U2 FSAR A103 Sent Date: 3/16/2011 6:14:34 AM Received Date: 3/16/2011 6:15:42 AM From: Boyd, Desiree L Created By: dlboyd@tva.gov Recipients: "Crouch, William D" <wdcrouch@tva.gov> Tracking Status: None "Boyd, Desiree L" <dlboyd@tva.gov>

Tracking Status: None "Hamill, Carol L" <clhamill@tva.gov> Tracking Status: None "Stockton, Rickey A" <rastockton@tva.gov> Tracking Status: None "Epperson, Dan" <Dan.Epperson@nrc.gov> Tracking Status: None "Poole, Justin" <Justin.Poole@nrc.gov> Tracking Status: None "Raghavan, Rags" <Rags.Raghavan@nrc.gov> Tracking Status: None "Milano, Patrick" <Patrick.Milano@nrc.gov>

Tracking Status: None "Campbell, Stephen" <Stephen.Campbell@nrc.gov> Tracking Status: None Post Office: TVANUCXVS2.main.tva.gov

Files Size Date & Time MESSAGE 326 3/16/2011 6:15:42 AM 03-15-11_WBN U2 FSAR A103_Final.pdf 285086 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received: to be withheld from Public Disclosure Under 10 CFR 2.390. When separated from this Enclosure, this letter is decontrolled.

Tennessee Valley Authority, Post Office Box 2000, Spring City, Tennessee 37381-2000 March 15, 2011 10 CFR 50.4(b)(6) 10 CFR 50.34(b) 10 CFR 2.390(d)(1)

U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001

Watts Bar Nuclear Plant, Unit 2 Docket No. 50-391

Subject:

WATTS BAR NUCLEAR PLANT (WBN) - UNIT 2 - FINAL SAFETY ANALYSIS REPORT (FSAR), AMENDMENT 103

References:

1. TVA letter to the NRC dated December 17, 2010, Watts Bar Nuclear Plant (WBN) - Unit 2 - Final Safety Analysis Report Amendment 102
2. TVA letter to NRC dated December 21, 2010, Watts Bar Nuclear Plant (WBN) - Unit 2 - Final Safety Analysis Report (FSAR), Section 9.1, Fuel Storage and Handling
3. TVA letter to NRC dated January 24, 2011, Watts Bar Nuclear Plant (WBN) - Unit 2 - Final Safety Analysis Report (FSAR), Section 2.4, Hydrologic Engineering
4. TVA letter to NRC dated February 25, 2011, Watts Bar Nuclear Plant (WBN) Unit 2 - Final Safety Analysis Report (FSAR) - Response To Chapters 11 And 12 Request For Additional Information This letter transmits WBN Unit 2 FSAR Amendment 103 (A103), which reflects changes made since the issuance of Amendment 102 on December 17, 2010 (Reference 1). This amendment includes changes to Sections 9.1 and 2.4 previously provided via References 2 and 3. In Reference 4, TVA committed to provide Chapter 11 updates in response to

NRCs request for additional information. However, since that time, additional Chapter 11

questions have been received from the staff. Therefore, A103 does not contain any Chapter 11 updates but remains unchanged. Instead, TVA will provide an advance version of Chapter 11 along with answers to the remaining RAI questions in separate correspondence. If found acceptable by the staff, final Chapter 11 updates will be provided

in A104.

U.S. Nuclear Regulatory Commission Page 3 March 15, 2011

cc (Enclosures):

U. S. Nuclear Regulatory Commission Region II Marquis One Tower

245 Peachtree Center Ave., NE Suite 1200 Atlanta, Georgia 30303-1257 NRC Resident Inspector Unit 2 Watts Bar Nuclear Plant

1260 Nuclear Plant Road Spring City, Tennessee 37381

U.S. Nuclear Regulatory Commission Page 4 March 15, 2011

bcc (Enclosures):

Stephen Campbell U.S. Nuclear Regulatory Commission

MS 08H4A One White Flint North

11555 Rockville Pike Rockville, Maryland 20852-2738

Loren R. Plisco, Deputy Regional Administrator for Construction U. S. Nuclear Regulatory Commission

Region II Marquis One Tower 245 Peachtree Center Ave., NE Suite 1200 Atlanta, Georgia 30303-1257

ENCLOSURE 1 WBN Unit 2 FSAR A103 Summary Listing of A103 FSAR Changes" E1-1 Item No. Change Area Change Description Change Package Number 1. Section 9.1.3.1.1 Section 9.1.3.3.3 Table 9.1-1 1. Within FSAR Section 9.1.3.1.1 on page 9.1-5 (A101), replace the 3rd, 4th, and 5th sentences with Insert A below: Insert A - Under design basis Ultimate Heat Sink (UHS) temperatures and heat exchanger foulin g conditions, the heat load in the spent fuel pool is limited to 28.1E+06 BTU/hr during refueling ou tages. Under more favorable conditions, up to 50.2E+06 BTU/hr may be accommodated. Cycle specific calculations may be performed prior to the start of a refueling outage to determine the exact heat removal capability of the SFPCCS using recent heat exchanger performance testing and anticipated UHS temperatures; otherwise, 28.1E+06 BTU/hr may not be exceeded. The rate of fuel transfer from the reactor to the SFP is controlled such that, with one (1) train of SFPCCS in service, the SFP temperature will remain below 151.2 °F.

2. On page 9.1-10 (A101), replace the last sentence of the first paragraph with Insert B below:

Insert B - Following unit shutdown, a decay time of approximately 33 days prior to the completion of core offload is required to maintain the total SFP decay heat below 28.1E+06 BTU/hr design basis limit.

3. On page 9.1-10 (A101), replace the first sentence of the second paragraph with Insert C below:

Insert C - For full core offload following a normal refueling outage (Emergency Offload), it is assumed that a unit is required to shutdown 36 days after a refueling outage on the opposite unit. Following shutdown, it is assumed that core offload will be completed after a 60 day decay time.

Under these conditions, the maximum SFP decay heat will be less than 25.61E+06 BTU/hr, which is less than the normal refueling case.

4. On page 9.1-10 (A101), replace less with better in the second sentence of the second paragraph.
5. Replace Table 9.1-1 with new table.

2-103-01 2. Table 9.1-1 Replace Table 9.1-1 2-103-02

ENCLOSURE 1 WBN Unit 2 FSAR A103 Summary Listing of A103 FSAR Changes" E1-2 Item No. Change Area Change Description Change Package Number 3. Section 2.4 Revise Section 2.4.3, 2.4.10, and 2.4.14 due to new analyses. 2-103-03

4. Section 3.10 Table 3.11-2 Section 7.1.2 Table 7.1-1 Section 7.7 Section 8.1 1. In Section 3.10, add Seismic qualification testing of the safety related radiation monitors is docum ented in References [33] through [37]. to the end of section 3.10.1.

add references 33 through 37 to page 3.10-12 in the references, change Week to Weed

2. In Table 3.11-2, for Regulatory Guides 1.40, 1.63 and 1.73, change the FSAR cross reference to 8.1.5.3
3. For Section 7.1.2 and Table 7.1-1: add revision levels and update cross reference information. delete Item 27, Reg. Guide 1.97 from the listing move the separate entry for IEEE Standard 344-175 to the end of the previous entry. change RG 1.29 from revision 0 to Revision 3 change Reg. Guide 1.80 to 1.68.3 spell out Revision delete chapter 7 references to discussion for compliance to Reg. Guide 1.75 and replace with Note
8. change Revision for RG 1.89 from Revision 0 to Revision 1.
4. For Section 7.7, Delete the last sentence of the first paragraph of Unit Operation with an Inoperable RPIS Indicator:
5. The primary purpose for this option is to prevent unnecessary wear on the incore detectors due to repeated use over an extended period.
6. For Section 8.1, change RG 1.29 from revision 0 to Revision 3 2-103-04 5. Table 6.2.4-1 On FSAR Table 6.2.4-1, revise the sketch for containment penetration X-15 to clearly show the penetration configuration including the addition of a drain valve and pipe cap by EDCR 53421, Work Scope 5. 2-103-05 ENCLOSURE 1 WBN Unit 2 FSAR A103 Summary Listing of A103 FSAR Changes" E1-3 Item No. Change Area Change Description Change Package Number 6. Section 6.2.4 Table 6.2.4-1 1. On FSAR Table 6.2.4-1, Page 60 of 69, revise the sketch for containment penetrations X-108 and X-109 as follows:
a. Revise the sketches for penetrations X-108 and X-109 to show the blind flange is located in the Additional Equipment Building (AEB) and not the Auxiliary Building (AB).
b. Revise the sketches for penetrations X-108 and X-109 to show the blind flange as having a test connection to allow testing of the double O-ring.
c. Revise the possible leak paths column for penetrations X-108 and X-109 to remove Type D (through-line leakage from the Containment to the Auxiliary Building) and add Type E (leak path from the containment that bypasses the annulus and leaks directly past a cleanup system).
2. On FSAR Table 6.2.4-1, Page 66 of 69, add the abbreviation for the Additional Equipment Building (AEB) to the list of abbreviations for Building Structures.
3. In FSAR Section 6.2.4.3.1, add method 5 to Type E Leakage Path to indicate for pen etrations X-108 and X-109, a blind flange with a double O-ring design that is not opened during power operation and that has a zero leakage acceptance criteria is relied upon to prevent bypass leakage. 2-103-06 7. Section 6.2.4.2.3 Section 6.2.4.3.1 1. Revise the discussion in FSAR Section 6.2.4.2.3 under Penetration Type XVII by deleting the third, fourth and fifth sentences and replacing them with the following:

The containment penetration, illustrated in Figure 6.2.4-15, has a blind flange with double O-rings and a leak rate test connector installed inside the annulus. The shield building penetration utilizes a raised face blind flange with a single gasket installed outside the shield building.

2. Revise the discussion in FSAR Section 6.2.4.3.1 under Type C - Leakage Path by deleting the words "double O-ring" under Item 1. 2-103-07 8. Section 14.2.7 Change Revision No. of 14.2.7(2) for RG-1.41, Revision 2 to RG-1.41, Revision 0 2-103-08 ENCLOSURE 1 WBN Unit 2 FSAR A103 Summary Listing of A103 FSAR Changes" E1-4 Item No. Change Area Change Description Change Package Number 9. Table 9.2-2 For Table 9.2-2, make the following changes:
1. Renumber the pages from 1 of 75 through 75 of 75 to 1 of 77 through 77 of 77.
2. For Item 1, in the "Component" column, move ERCW pump A-A to align with the other ERCW pumps.
3. For Item 2, change the status light identified under "Method of Detection" from 1-HS-67-432a to 1-HS-67-431 A. 4. For Item 4, under the "Method of Detection" column, delete the words "and low pressure alarm in MCR" and add the words "Low flow and low pressure alarms in MCR" aligned with the fails to close failure mode.
5. For Item 5, in the "Effect on System" column, remove the hyphen from the word "requirements." 6. For Items 6,7,8, and 9, remove valves 1-FCV-67-68, 2-FCV-67-68, 1-FCV-67-65 and 2-FCV-67-65 from the "Component" column, respectively. Also revise the

Functions, Failure Modes, Method of Detections, Effect on System and Effect on Plant for these items, as shown on the attached FSAR markup, to identify the appropriate functionality and failure modes as a result of changing the normal position of valves 1-FCV-67-66, 2-FCV-67-66, 1-FCV-67-67 and 2-FCV-67-67 from normally locked open with power removed to normally closed with 'power restored.

7. For Item 10, add an asterisk to the Item number and include a remark associated with the asterisk that indicates the ADG is not operable but the item is retained in the

table for historical purposes. Also make the following editorial changes: A) Under "Component," add a "-S" to valve number 1-FCV-67-72 and 2-FCV-67-73; B) Under "Failure Mode", insert the word "fully" in front of the word "open"; and C) Under "Effect on System," insert the word "None" in front of the current statement and change the word "capacity" to "capability." 2-103-09 ENCLOSURE 1 WBN Unit 2 FSAR A103 Summary Listing of A103 FSAR Changes" E1-5 Item No. Change Area Change Description Change Package Number 9. (Cont.) Table 9.2-2 8. For Item 11, revise the "Effect on System" for both failure modes for valve 1-67513A. 9. Also change the formatting and wording of the information included under Item 11, as shown on the attached FSAR markup, to improve readability and make it consistent with the current wording found in calculation EPMIVS011 092.

10. For Item 12, add the evaluation for check valve 2-67-513A (new pages 13 and 14).

Also change the formatting and wording of the information included under Item 12, as shown on the attached FSAR markup, to improve readability and make it consistent with the current wording found in calculation EPMIVS011 092.

11. For Item 13, revise the "Effect on System" for both failure modes for valve 1-675138. Also change the formatting and wording of the information included under Item 13, as shown on the attached FSAR markup, to improve

readability and make it consistent with the current wording found in calculation EPMIVS011 092.

12. For Item 14, revise the "Effect on System" for both failure modes for valve 1-675138. Also change the formatting and wording of the information included under Item 14, as shown on the attached FSAR markup, to improve readability and make it consistent with the current wording found in calculation EPMIVS011 092.
13. For Item 15, under "Effect on System" for the fails to close failure mode, change the listing of valves from "508, 513" to "508 and 513." 14. For Item 17, move the fails to close "Failure Mode" and the associated "Potential Cause" to align with the second "Method of Detection".
15. For Item 27, restore remark to indicate valves 1-FCV~67-223 and 2-FCV-67-223 are administratively locked open with breaker removed. Also, correct the "Method of Detection" from 2-FI-67-222 to high temperature alarm from 0-M-278. Additionally, revise the wording of the "Failure Mode" and "Effect on Plant", as shown on the attached FSAR markup, to make it consistent with the current wording found in calculation EPMIVS011 092.

2-103-09 ENCLOSURE 1 WBN Unit 2 FSAR A103 Summary Listing of A103 FSAR Changes" E1-6 Item No. Change Area Change Description Change Package Number 9. (Cont.) Table 9.2-2 16. For Item 28, correct the "Method of Detection" from 2-FI-67-222 to high temperature alarm from 0-M-278.

Additionally, revise the wording of the "Effect on System" and "Effect on Plant," as shown on the attached FSAR markup, to make it consistent with the current wording found in calculation EPMIVS011 092.

17. For Item 30, remove the remark in the "Remarks" column. Also, revise the function to indicate the valves remain closed, or open to control ERCW flow through the Heat Exchanger.
18. For Item 31, correct the identification of the flow indicator specified under the "Method of Detection." 19. For Item 32, revise the Function for valves 0-FCV-67-152, 0-FCV-67-151 and 0-FCV-67-144, revise the "Failure Mode", "Potential Cause" and "Method of Detection" for valves 0-FCV-67-152 and 0-FCV-67-144 and revise the "Effect on System" for 0-FCV-67-144" as shown on the attached FSAR markup. Also, delete the remark in the "Remarks" column for valve 0-FC V-67-144 and revise the remark for valve 0-FCV-67-151 to indicate the valve is locked closed with the breaker removed. Also make formatting changes, as shown on the attached FSAR markup, to correct formatting errors and to keep Item 32 on one page.
20. For Item 33, correct the "Failure Mode" by inserting the words "(for the affected unit)." Also correct the "Effect on Plant" by inserting the words "(each unit)".
21. For Item 34, correct the "Effect on Plant" by inserting the words "(each unit)." 22. For Item 38, add Unit 2 valves 2-TCV-67-115 and 2-TCV-67-118. 23. For Item 40, add the Function (inadvertently left out) and add the Item # to the "Item" column for the continuation on

the next page.

24. For Item 41, correct the "Failure Mode" by inserting the words "(for the affected unit)." Also, delete the "9" inadvertently included after valve numbe r 2-67-580B. Also, add the Item # to the "Item" column for the continuation on the next page.

2-103-09 ENCLOSURE 1 WBN Unit 2 FSAR A103 Summary Listing of A103 FSAR Changes" E1-7 Item No. Change Area Change Description Change Package Number 9. (Cont.) Table 9.2-2 25. For Items 42, 44, 45, 54 and 56, add the Item # to the "Item" column for the continuation on the next page.

26. For Item 43, under the "Function," remove the hyphens from the words provide and containment. Also, add the Item # to the "Item" column for the continuation on the next page. 27. For Item 46, correct the penetration numbers for the Unit 2 valves to include the "X-". Also, add the Item # to the "Item" column for the continuation on the next page.
28. For Item 59, correct the "Failure Mode" by inserting the words "(for the affected unit)." 29. For Item 67, in the "Component" description, add Pipe Chase Coolers 2A and 2B.
30. For Item 71, revise the "Function" to indicate valve 1-FCV-67-458-A will remain closed, change the "Failure Mode" from fails closed to fails open and the "Effect on System" is that it interrupts flow to both CCS Heat Exchangers A and B. 31. For Item 72, correct to identify the "Effect on System" as a loss of Train A or B.
32. Add Item 73a to address electrical failure of ERCW Train 1B and 2B.
33. For Item 75, correct the abbreviation HVAC under "Effect on System" Also delete duplicated words under remark 1 under "Remarks." 34. For Item 77, correct the "Method of Detection" for failed closed by inserting information that was inadvertently left out. 35. For Item 78, correct the spelling of the word jackets under "Function." 36. For Item 79, correct the spelling of the word due under "Effect on System." 2-103-09 ENCLOSURE 1 WBN Unit 2 FSAR A103 Summary Listing of A103 FSAR Changes" E1-8 Item No. Change Area Change Description Change Package Number 10. Section 9.2.8 1. For Section 9.2.8, insert the following sentence to the end of the paragraph:

A diver protection barrier is installed in the pump bay to facilitate the inspection of the RCW pumps. 2-103-10 11. Section 3.8.5 Table 3.8.4-7 Table 3.8.4-8 1. For Section 3.8.4.1.6 (A102 - page 3.8.4-15), change elevation 737.5 to 738.8, change 2-foot, 6-inch to 5-0, and delete phrase, above elevation 705.0 from the third paragraph from top of page.

2. For Section 3.8.5, replace 1.53 with 1.52 in the last sentence of the second paragraph under the Auxiliary-Control Building.
3. For Table 3.8.4-7 perform the following:
a. Sheet 1 of 7 - revise item VI 6 by changing elevation from 738.6 to 738.8.
b. Sheet 2 of 7 - insert door A78 into Item 6.
c. Sheet 3 of 7 - revise item VI 6 by changing elevation from 738.6 to 738.8.
d. Sheet 4 of 7 - insert door A78 into Item 6.
4. For Table 3.8.4-7a insert door A78 into the list of doors.
5. For Table 3.8.4-8, revise item VII by changing elevation from 740.1 to 742.2 (738.8 PMF + 3.4 ft. wave runup), revise the two values in the adjacent columns from 1.58 to 1.519 and from 4.68 to 4.378. 2-103-11 12. Section 10.4.9 FSAR Section 10.4.9, paragraph 10.4.9.2 entitled "System Description" is revised to add the following:

"The two CSTs are normally isolated from each other, with one CST dedicated to each unit. The AFW safety analyses take no credit for the ability to cross-tie the CSTs. 2-103-12

ENCLOSURE 1 WBN Unit 2 FSAR A103 Summary Listing of A103 FSAR Changes" E1-9 Item No. Change Area Change Description Change Package Number 13. Not Used Not Used 2-103-13 14. Section 15.2 Replace Figures 15.2-8, 15.2-9, 15.2-10, and 15.2-11 previously provided by RAI Response submittal dated 11 2010. 2-103-14 15. Section 8.2 Section 8.3.1.1 1. For Section 8.2.2, replace the first paragraph with the following: Each 161 kV circuit and CSSTs C and D have sufficient capacity and a dequate voltage to supply the essential safety auxiliaries of a unit under loss-of-coolant accident (LOCA) conditions and the other unit in concurrent orderly shutdown with a simultaneous worst-case single transmission system contingency. as previously provided in RAI response letter dated December 6, 2010.

2. For Section 8.3.1.1, revise the Equipment Capacities portion of Section 8.3.1.1 to match the information in Tables 8.3-4 through 8.3-7. 2-103-15 16. Table 11.2-5 In the footnote added to Table 11.2-5 by Amendment 102, the term F/H1D in the formulation of Column 5 and Mobile in the definition of D should be, F/H/D and Mobile, respectively. 2-103-16 17. Section 14.2 Table 14.2-2 1. For Section 14.2.10.1, page 14.2-31, make the following changes:

a) delete the phrase, and at least one temporary channel from the second line in the first paragraph at

the top of page b) Replace strip chart with MCR in the last line of the first paragraph at the top of page.

c) Replace the phrase, at least two channels (one permanent and one temporary, or with in front of each source range detector in the second paragraph of this page.

d) Delete ) from after the word, channels

e) Delete the sentence that reads, The temporary detector will be monitored, as required, to ensure that at least two channels are responding from the second paragraph of this page.

f) Delete the phrase, and that the extrapolated inverse count rate ratio is not decreasing for unexplained reasons from the fourth paragraph of this page.

2-103-17 ENCLOSURE 1 WBN Unit 2 FSAR A103 Summary Listing of A103 FSAR Changes" E1-10 Item No. Change Area Change Description Change Package Number 17 (cont.) Section 14.2 Table 14.2-2

2. For Table 14.2-2 (Sheet 3 of 39), make the following changes. a) Replace the phrase, the stat of fuel loading with the phrase, unlatching the first fuel assembly, in Prerequisite No. 2.

b) Relocate the phrase, using the source fuel assembly as the source prior to being unlatched or by using a portable neutron source, to after the word, checked in the previous sentence.

c) Delete the remaining phrase, The response check may be performed by, resulting from the relocation of the phrase in Item b above.

d) In the test method section, replace the phrase plots of inverse count rate ratio, with the phrase, the installed source range instrumentation.

2-103-17 18 6.2.2 6.3.2 9.2.7 1. Page 6.2.2-4, Under "Net Positive Suction Head (NPSH)" Paragraph, delete the phrase, "or height of water in the containment sump." 2. Page 6.3-22, Section 6.3.2.14, item 1, delete "No credit is taken for water level above the lower containment floor elevation, and," and start sentence with "No."

3. Page 6.3-22, Section 6.3.2.14, item 2, delete "No credit is taken for RWST water level above the floor plate."
4. Page 9.2-36, on top of this page, revise the table as indicated by mark-up for the listed Pumps, Elevation, Minimum RWST Water, and Level Used in NPSH Analysis.

2-103-18 ENCLOSURE 1 WBN Unit 2 FSAR A103 Summary Listing of A103 FSAR Changes" E1-11 Item No. Change Area Change Description Change Package Number 18 (cont.) 6.2.2 6.3.2 9.2.7 5. Page 9.2-36, Fifth Paragraph, revise item (4) to read: "minimum sump water level." 6. Page 9.2-36, revise the Note in the bottom of this page to say "The minimum sump water level is 5.78 ft, which is above the strainers. The total head loss through the strainer (2.218 ft) was used in the NPSH analysis." 7. Page 9.2-37, delete the first paragraph at the top of the page which reads, "due to debris laden strainer is much less than 6 feet. Therefore, retaining the original NPSH calculation is conservative."

8. Page 9.2-118, revise Table 9.2-3 as indicated by mark-up.

2-103-18 19 5.5.3 Insert the following discussion into Section 5.5.3.3.1, Material Corrosion/Erosion Evaluation, just prior to Section 5.5.3.3.2 heading. Pressurizer and reactor vessel nozzle dissimilar metal (i.e., Inconel Alloy 82/182) are susceptible to stress corrosion cracking. Under sustained tensile stresses, dissimilar metal (DM) nozzle buttering and nozzle to safe end butt welds can develop cracks through corrosive action of the primary water. However, stress corrosion cracking does not occur in materials that are in a compressive state of stress. Therefore, TVA has committed to industry guidance document, Nuclear Energy Institute, (NEI) 03-08, Guideline for the Management of Materials Issues, to address these materials issues. NEI 03-08 endorses MRP-139, Revision 1, Material Reliability Program: Primary System Piping Butt Weld Inspection and Evaluation Guideline.

2-103-19 ENCLOSURE 1 WBN Unit 2 FSAR A103 Summary Listing of A103 FSAR Changes" E1-12 Item No. Change Area Change Description Change Package Number 19 (cont.) 5.5.3 Under this program, TVA has used Mechanical Stress Improvement Process (MSIP), a proprietary mechanical

process, which mitigates and prevents the initiation of stress corrosion cracking at dissimilar metal (DM) weld locations in components and piping. The process works by generating beneficial compressive residual stress patterns from the pipe inside surface to about halfway through the wall thickness in both axial and circumferential directions. The resulting compressive residual stresses prevent crack initiation and arrest existing shallow cracks. The process is accomplished by a one-time application of compressive force and mechanically controlled permanent radial contraction to the outside surface of the nozzle safe end and/or piping. A split clamp ring is placed around the nozzle safe end and/or the

attached pipe or elbow at a specified distance from the DM butt weld centerline. The gaps between the clamp ring halves are shimmed and then the clamp ring is contracted by box presses (i.e., framed hydra ulic cylinders) to circumferentially compress/yield the piping within the specified range. The MSIP box presses and clamp ring are then removed from the piping.

MSIP was applied to prevent stress corrosion cracking of the nozzle buttering and nozzle to safe-end butt welds on the six pressurizer nozzles, the four reactor vessel cold leg nozzles and the four reactor vessel hot leg nozzle locations. The Unit 2 pressurizer spray, safety and relief nozzles and the Unit 2 pressurizer surge nozzle had the MSIP clamp ring placed directly on the nozzle safe ends. For the Unit 2 reactor vessel nozzles the MSIP clamp rings were placed on the hot leg pipes and the cold leg elbows.

MSIP was applied as a special process under ASME Section III for Unit 2. QA requirements for Control of Processes are defined in ASME NQA-1, Quality Assurance Requirements for Nuclear Facility Applications

. ASME NQA-1 is invoked by both ASME III and ASME XI. The ASME NQA-1 requirements were met by the Westinghouse and Unit 2 certificate holder PCI Energy Services NPT/NA ASME QA Programs.

Addenda to the pressurizer and reactor vessel component and piping stress reports of record were prepared by Westinghouse and TVA to present results of the re-analyses and reconciliations performed to evaluate the effects of MSIP and to demonstrate that the stress reports of record remain valid. These addenda confirm that the deformed geometries of the component nozzles and piping including elongation do not have any adverse impact on the existing ASME Section III

stress qualifications of record.

2-103-19 ENCLOSURE 1 WBN Unit 2 FSAR A103 Summary Listing of A103 FSAR Changes" E1-13 Item No. Change Area Change Description Change Package Number 20 Section 3.12 Add Section 3.12, Control of Heavy Loads, that is substantially similar to the current Unit 1 program. The new Section 3.12 is materially equivalent to the current Unit 1 UFSAR. Add reference in the Table of Contents. 2-103-20 21 Section 9.4 Figure 7A-3 1. Corrected the misspelling of designed and redundancy on Page 9.4-37.

2. Corrected legibility of three symbols in Figure 7A-3. 2-103-21 ENCLOSURE 2 WBN Unit 2 FSAR A103 Summary of Redacted Pages Chapter Page(S) Section No. Figure No. Basis For Redaction E2-1 1 1.2-15 1.2 1.2-1 Security Related, 10CFR2.390(d)(1) 1 1.2-16 1.2 1.2-2 Security Related, 10CFR2.390(d)(1) 1 1.2-17 1.2 1.2-3 Security Related, 10CFR2.390(d)(1) 1 1.2-18 1.2 1.2-4 Security Related, 10CFR2.390(d)(1) 1 1.2-19 1.2 1.2-5 Security Related, 10CFR2.390(d)(1) 1 1.2-20 1.2 1.2-6 Security Related, 10CFR2.390(d)(1) 1 1.2-21 1.2 1.2-7 Security Related, 10CFR2.390(d)(1) 1 1.2-22 1.2 1.2-8 Security Related, 10CFR2.390(d)(1) 1 1.2-23 1.2 1.2-9 Security Related, 10CFR2.390(d)(1) 1 1.2-24 1.2 1.2-10 Security Related, 10CFR2.390(d)(1) 1 1.2-25 1.2 1.2-11 Security Related, 10CFR2.390(d)(1) 1 1.2-26 1.2 1.2-12 Security Related, 10CFR2.390(d)(1) 1 1.2-27 1.2 1.2-13 Security Related, 10CFR2.390(d)(1) 1 1.2-28 1.2 1.2-14 Security Related, 10CFR2.390(d)(1) 1 1.2-29 1.2 1.2-15 Security Related, 10CFR2.390(d)(1) 2 2.2-7 2.2 2.2-1 Security Related, 10CFR2.390(d)(1) 2 2.2-8 2.2 2.2-2 Security Related, 10CFR2.390(d)(1) 2 2.4-89 2.4 2.4-2 Security Related, 10CFR2.390(d)(1) 2 2.4-159 2.4 2.4-24 Security Related, 10CFR2.390(d)(1) 2 2.4-162 2.4 2.4-27 Security Related, 10CFR2.390(d)(1) 2 2.4-163 2.4 2.4-28 Security Related, 10CFR2.390(d)(1) 2 2.4-168 2.4 2.4-40a Sheet 1 Security Related, 10CFR2.390(d)(1) 2 2.4-171 2.4 2.4-40b Security Related, 10CFR2.390(d)(1) 2 2.4-172 2.4 2.4-40c Security Related, 10CFR2.390(d)(1) 2 2.4-173 2.4 2.4-40d Sheet 1 Security Related, 10CFR2.390(d)(1) 2 2.4-178 2.4 2.4-40f Sheet 1 Security Related, 10CFR2.390(d)(1) 2 2.4-181 2.4 2.4-40g Sheet 1 Security Related, 10CFR2.390(d)(1) 2 2.4-206 2.4 2.4-76 Security Related, 10CFR2.390(d)(1) 2 2.4-209 2.4 2.4-79 Security Related, 10CFR2.390(d)(1) 2 2.4-212 2.4 2.4-82 Security Related, 10CFR2.390(d)(1) 2 2.4-213 2.4 2.4-83 Security Related, 10CFR2.390(d)(1) 2 2.4-218 2.4 2.4-88 Security Related, 10CFR2.390(d)(1) 2 2.4-219 2.4 2.4-89 Security Related, 10CFR2.390(d)(1) 2 2.4-220 2.4 2.4-90 Security Related, 10CFR2.390(d)(1) 2 2.5-471 2.5 2.5-185 Security Related, 10CFR2.390(d)(1) 2 2.5-472 2.5 2.5-185a Security Related, 10CFR2.390(d)(1) 2 2.5-513 2.5 2.5-225 Security Related, 10CFR2.390(d)(1) 2 2.5-514 2.5 2.5-226 Security Related, 10CFR2.390(d)(1) 2 2.5-515 2.5 2.5-226a Security Related, 10CFR2.390(d)(1) 2 2.5-575 2.5 2.5-273 Security Related, 10CFR2.390(d)(1) 2 2.5-690 2.5 2.5-358 Security Related, 10CFR2.390(d)(1) 2 2.5-934 2.5 2.5-592 Security Related, 10CFR2.390(d)(1)

ENCLOSURE 2 WBN Unit 2 FSAR A103 Summary of Redacted Pages Chapter Page(S) Section No. Figure No. Basis For Redaction E2-2 3 3.5-53 3.5 3.5-3 Security Related, 10CFR2.390(d)(1) 3 3.5-54 3.5 3.5-4 Security Related, 10CFR2.390(d)(1) 3 3.6-73 3.6 3.6-21 Security Related, 10CFR2.390(d)(1) 3 3.6-74 3.6 3.6-22 Security Related, 10CFR2.390(d)(1) 3 3.6-75 3.6 3.6-23 Security Related, 10CFR2.390(d)(1) 3 3.6-76 3.6 3.6-24 Security Related, 10CFR2.390(d)(1) 3 3.7-217 3.7 3.7-39 Security Related, 10CFR2.390(d)(1) 3 3.7-218 3.7 3.7-40 Security Related, 10CFR2.390(d)(1) 3 3.7-219 3.7 3.7-41 Security Related, 10CFR2.390(d)(1) 3 3.7-222 3.7 3.7-44 Security Related, 10CFR2.390(d)(1) 3 3.8.3-60 3.8.3 3.8.3-6 Security Related, 10CFR2.390(d)(1) 3 3.8.3-61 3.8.3 3.8.3-7 Security Related, 10CFR2.390(d)(1) 3 3.8.4-94 3.8.4 3.8.4-2 Security Related, 10CFR2.390(d)(1) 3 3.8.4-95 3.8.4 3.8.4-3 Security Related, 10CFR2.390(d)(1) 3 3.8.4-96 3.8.4 3.8.4-4 Security Related, 10CFR2.390(d)(1) 3 3.8.4-97 3.8.4 3.8.4-5 Security Related, 10CFR2.390(d)(1) 3 3.8.4-98 3.8.4 3.8.4-6 Security Related, 10CFR2.390(d)(1) 3 3.8.4-101 3.8.4 3.8.4-9 Security Related, 10CFR2.390(d)(1) 3 3.8.4-109 3.8.4 3.8.4-17 Security Related, 10CFR2.390(d)(1) 3 3.8.4-110 3.8.4 3.8.4-18 Security Related, 10CFR2.390(d)(1) 3 3.8.4-111 3.8.4 3.8.4-19 Security Related, 10CFR2.390(d)(1) 3 3.8.4-112 3.8.4 3.8.4-20 Security Related, 10CFR2.390(d)(1) 3 3.8.4-116 3.8.4 3.8.4-24 Security Related, 10CFR2.390(d)(1) 3 3.8.4-120 3.8.4 3.8.4-28 Security Related, 10CFR2.390(d)(1) 3 3.8.4-127 3.8.4 3.8.4-35 Security Related, 10CFR2.390(d)(1) 3 3.8.4-128 3.8.4 3.8.4-36 Security Related, 10CFR2.390(d)(1) 3 3.8.4-129 3.8.4 3.8.4-36a Security Related, 10CFR2.390(d)(1) 3 3.8.4-132 3.8.4 3.8.4-37 Security Related, 10CFR2.390(d)(1) 3 3.8.4-149 3.8.4 3.8.4-50 Security Related, 10CFR2.390(d)(1) 3 3.8.4-150 3.8.4 3.8.4-51 Security Related, 10CFR2.390(d)(1) 3 3.8.6-19 3.8.6 3.8.6-7 Security Related, 10CFR2.390(d)(1) 6 6.2.2-24 6.2.2 6.2.2-4 Security Related, 10CFR2.390(d)(1) 6 6.2.3-76 6.2.3 6.2.3-4 Security Related, 10CFR2.390(d)(1) 6 6.2.3-77 6.2.3 6.2.3-5 Security Related, 10CFR2.390(d)(1) 6 6.2.3-78 6.2.3 6.2.3-6 Security Related, 10CFR2.390(d)(1) 6 6.2.3-79 6.2.3 6.2.3-7 Security Related, 10CFR2.390(d)(1) 6 6.2.3-80 6.2.3 6.2.3-8 Security Related, 10CFR2.390(d)(1) 6 6.2.3-81 6.2.3 6.2.3-9 Security Related, 10CFR2.390(d)(1) 6 6.2.3-82 6.2.3 6.2.3-10 Security Related, 10CFR2.390(d)(1) 6 6.2.3-92 6.2.3 6.2.3-18 Security Related, 10CFR2.390(d)(1) 6 6.2.3-93 6.2.3 6.2.3-19 Security Related, 10CFR2.390(d)(1) 8 8.1-21 8.1 8.1-1 Security Related, 10CFR2.390(d)(1) 8 8.2-14 8.2 Text only Security Related, 10CFR2.390(d)(1) 8 8.2-15 8.2 Text only Security Related, 10CFR2.390(d)(1) 8 8.2-30 8.2 8.2-3 Security Related, 10CFR2.390(d)(1)

ENCLOSURE 2 WBN Unit 2 FSAR A103 Summary of Redacted Pages Chapter Page(S) Section No. Figure No. Basis For Redaction E2-3 8 8.2-31 8.2 8.2-4 Security Related, 10CFR2.390(d)(1) 8 8.2-44 8.2 8.2-11 Security Related, 10CFR2.390(d)(1) 8 8.3-97 8.3 8.3-1 Security Related, 10CFR2.390(d)(1) 8 8.3-99 8.3 8.3-2 Security Related, 10CFR2.390(d)(1) 8 8.3-100 8.3 8.3-3 Security Related, 10CFR2.390(d)(1) 8 8.3-102 8.3 8.3-4b Security Related, 10CFR2.390(d)(1) 8 8.3-205 8.3 8.3-46 Security Related, 10CFR2.390(d)(1) 8 8.3-218 8.3 8.3-59 Security Related, 10CFR2.390(d)(1) 9 9.2-208 9.2 9.2-40 Security Related, 10CFR2.390(d)(1) 9 9.4-276 9.4 9.4-21 Security Related, 10CFR2.390(d)(1) 9 9.4-280 9.4 9.4-22c Security Related, 10CFR2.390(d)(1) 9 9.4-281 9.4 9.4-23 Security Related, 10CFR2.390(d)(1) 9 9.4-282 9.4 9.4-24 Security Related, 10CFR2.390(d)(1) 12 12.3-39 12.3 12.3-1 Security Related, 10CFR2.390(d)(1) 12 12.3-40 12.3 12.3-2 Security Related, 10CFR2.390(d)(1) 12 12.3-41 12.3 12.3-3 Security Related, 10CFR2.390(d)(1) 12 12.3-42 12.3 12.3-4 Security Related, 10CFR2.390(d)(1) 12 12.3-43 12.3 12.3-5 Security Related, 10CFR2.390(d)(1) 12 12.3-44 12.3 12.3-6 Security Related, 10CFR2.390(d)(1) 12 12.3-45 12.3 12.3-7 Security Related, 10CFR2.390(d)(1) 12 12.3-46 12.3 12.3-8 Security Related, 10CFR2.390(d)(1) 12 12.3-47 12.3 12.3-9 Security Related, 10CFR2.390(d)(1) 12 12.3-48 12.3 12.3-10 Security Related, 10CFR2.390(d)(1) 12 12.3-49 12.3 12.3-11 Security Related, 10CFR2.390(d)(1) 12 12.3-50 12.3 12.3-12 Security Related, 10CFR2.390(d)(1) 12 12.3-51 12.3 12.3-13 Security Related, 10CFR2.390(d)(1) 12 12.3-52 12.3 12.3-14 Security Related, 10CFR2.390(d)(1) 12 12.3-53 12.3 12.3-15 Security Related, 10CFR2.390(d)(1) 12 12.3-54 12.3 12.3-16 Security Related, 10CFR2.390(d)(1) 12 12.3-55 12.3 12.3-17 Security Related, 10CFR2.390(d)(1) 12 12.4-5 12.4 12.4-1 Security Related, 10CFR2.390(d)(1)

ENCLOSURE 3 WBN Unit 2 FSAR A103 List Of Files And File Sizes On The Security-Related OSM (OSM #1)

E3-1 ENCLOSURE 3TVA Watts Bar Nuclear Plant Unit 2FSAR Amendment 103 - List of Files on Security-Related OSMFile NameFile Size - BytesTVA_WBN-2_FSAR_Files001_TVA_WB_FSAR_TOC.pdf374,048002_TVA_WB_FSAR_LRP.pdf96,066003_TVA_WB_FSAR_Section_1.pdf 4,641,501004_TVA_WB_FSAR_Section_2_A.pdf 10,519,430005_TVA_WB_FSAR_Section_2_B_Part_1_of_2.pdf 40,453,797005_TVA_WB_FSAR_Section_2_B_Part_2_of_2.pdf 35,192,574006_TVA_WB_FSAR_Section_2_C.pdf 2,107,384007_TVA_WB_FSAR_Section_2_D.pdf 31,232,851008_TVA_WB_FSAR_Section_2_E.pdf 47,312,434009_TVA_WB_FSAR_Section_3_A.pdf 2,623,270010_TVA_WB_FSAR_Section_3_B.pdf 7,063,096011_TVA_WB_FSAR_Section_3_C.pdf 30,266,986012_TVA_WB_FSAR_Section_3_D.pdf 6,165,866013_TVA_WB_FSAR_Section_4.pdf 12,552,942014_TVA_WB_FSAR_Section_5.pdf 10,083,479015_TVA_WB_FSAR_Section_6_A.pdf 22,847,137016_TVA_WB_FSAR_Section_6_B.pdf 8,311,175017_TVA_WB_FSAR_Section_7.pdf 14,089,947018_TVA_WB_FSAR_Section_8.pdf 29,924,497019_TVA_WB_FSAR_Section_9_A.pdf 24,971,314020_TVA_WB_FSAR_Section_9_B.pdf 16,538,766021_TVA_WB_FSAR_Section_10.pdf 14,217,129022_TVA_WB_FSAR_Section_11.pdf 4,045,573023_TVA_WB_FSAR_Section_12.pdf 5,972,870024_TVA_WB_FSAR_Section_13.pdf 3,238,388025_TVA_WB_FSAR_Section_14.pdf 1,329,547Page 1 of 3 ENCLOSURE 3TVA Watts Bar Nuclear Plant Unit 2FSAR Amendment 103 - List of Files on Security-Related OSMFile NameFile Size - Bytes026_TVA_WB_FSAR_Section_15.pdf 41,624,366027_TVA_WB_FSAR_Section_16.pdf 148,067028_TVA_WB_FSAR_Section_17.pdf 144,976Total 428,089,476TVA_WBN-2_Oversized_FSAR_Figures001_TVA_WB_FSAR_Figure_2.5_3.pdf 1,757,743002_TVA_WB_FSAR_Figure_2.5_11.pdf1,689,538 003_TVA_WB_FSAR_Figure_2.5_71.pdf2,263,087 004_TVA_WB_FSAR_Figure_2.5_222.pdf909,429 005_TVA_WB_FSAR_Figure_2.5_281_1.pdf2,155,627 006_TVA_WB_FSAR_Figure_2.5_281_2.pdf2,117,562 007_TVA_WB_FSAR_Figure_2.5_549_1.pdf3,600,807 008_TVA_WB_FSAR_Figure_2.5_549_2.pdf3,989,180 009_TVA_WB_FSAR_Figure_2.5_549_3.pdf2,863,719 010_TVA_WB_FSAR_Figure_2.5_549_4.pdf2,809,599011_TVA_WB_FSAR_Figure_2.5_550.pdf1,803,985 012_TVA_WB_FSAR_Figure_2.5_551.pdf1,996,869 013_TVA_WB_FSAR_Figure_2.5_554_1.pdf3,081,060 014_TVA_WB_FSAR_Figure_2.5_554_2.pdf1,996,707015_TVA_WB_FSAR_Figure_2.5_555.pdf1,993,312 016_TVA_WB_FSAR_Figure_2.5_556.pdf2,998,087 017_TVA_WB_FSAR_Figure_2.5_571_1.pdf844,484 018_TVA_WB_FSAR_Figure_2.5_571_2.pdf3,128,329019_TVA_WB_FSAR_Figure_2.5_571_3.pdf3,284,555 020_TVA_WB_FSAR_Figure_2.5_571_4.pdf2,142,316 021_TVA_WB_FSAR_Figure_2.5_572.pdf2,196,945Page 2 of 3 ENCLOSURE 3TVA Watts Bar Nuclear Plant Unit 2FSAR Amendment 103 - List of Files on Security-Related OSMFile NameFile Size - Bytes022_TVA_WB_FSAR_Figure_2.5_573.pdf2,013,286023_TVA_WB_FSAR_Figure_2.5_576_1.pdf3,238,525 024_TVA_WB_FSAR_Figure_2.5_576_2.pdf2,151,750 025_TVA_WB_FSAR_Figure_2.5_577.pdf2,207,622 026_TVA_WB_FSAR_Figure_2.5_578.pdf2,080,032 027_TVA_WB_FSAR_Figure_2.5_579.pdf2,308,985 028_TVA_WB_FSAR_Figure_2.5_583.pdf2,487,346 029_TVA_WB_FSAR_Figure_2.5_588.pdf2,528,515 030_TVA_WB_FSAR_Figure_2.5_589.pdf2,480,438 031_TVA_WB_FSAR_Figure_2.5_594.pdf13,054,127 032_TVA_WB_FSAR_Figure_2.5_595.pdf2,323,267 033_TVA_WB_FSAR_Figure_2.5_596.pdf5,732,107 034_TVA_WB_FSAR_Figure_2.5_597.pdf1,287,336 035_TVA_WB_FSAR_Figure_2.5_602.pdf5,549,537 036_TVA_WB_FSAR_Figure_2.5_603.pdf4,830,835 037_TVA_WB_FSAR_Figure_2.5_604.pdf6,392,279038_TVA_WB_FSAR_Figure_2.5_605.pdf20,823,108Total 131,112,035TVA_WBN-2_Oversized_FSAR_Table001_TVA_WB_FSAR_Table_6.2.4-1.pdf 1,215,577Total 1,215,577Page 3 of 3 ENCLOSURE 4 WBN Unit 2 FSAR A103 List Of Files And File Sizes On The Publicly Available OSM (OSM #2)

E4-1 ENCLOSURE 4TVA Watts Bar Nuclear Plant Unit 2FSAR Amendment 103 List of Files on Publicly Available OSMFile NameFile Size - BytesTVA_WBN-2_FSAR_Files001_TVA_WB_FSAR_TOC.pdf374,048002_TVA_WB_FSAR_LRP.pdf96,066003_TVA_WB_FSAR_Section_1.pdf 834,922004_TVA_WB_FSAR_Section_2_A.pdf 10,182,886005_TVA_WB_FSAR_Section_2_B_Part_1_of_2.pdf 31,762,378005_TVA_WB_FSAR_Section_2_B_Part_2_of_2.pdf 30,933,164006_TVA_WB_FSAR_Section_2_C.pdf 2,107,384007_TVA_WB_FSAR_Section_2_D.pdf 31,232,851008_TVA_WB_FSAR_Section_2_E.pdf 45,933,046009_TVA_WB_FSAR_Section_3_A.pdf 2,331,845010_TVA_WB_FSAR_Section_3_B.pdf 5,661,339011_TVA_WB_FSAR_Section_3_C.pdf 25,434,513012_TVA_WB_FSAR_Section_3_D.pdf 5,897,180013_TVA_WB_FSAR_Section_4.pdf 12,552,942014_TVA_WB_FSAR_Section_5.pdf 10,083,479015TVAWBFSARSection6Apdf19966685 015_TVA_WB_FSAR_S ec ti on_6_A.p df 19 , 966 , 685016_TVA_WB_FSAR_Section_6_B.pdf 8,311,175017_TVA_WB_FSAR_Section_7.pdf 14,089,947018_TVA_WB_FSAR_Section_8.pdf 26,964,257019_TVA_WB_FSAR_Section_9_A.pdf 24,710,262020_TVA_WB_FSAR_Section_9_B.pdf 15,324,260021_TVA_WB_FSAR_Section_10.pdf 14,217,129022_TVA_WB_FSAR_Section_11.pdf 4,045,573023_TVA_WB_FSAR_Section_12.pdf 1,704,760024_TVA_WB_FSAR_Section_13.pdf 3,238,388025_TVA_WB_FSAR_Section_14.pdf 1,329,547Note: Byte amounts in italics are redacted files.Page 1 of 3 ENCLOSURE 4TVA Watts Bar Nuclear Plant Unit 2FSAR Amendment 103 List of Files on Publicly Available OSMFile NameFile Size - Bytes026_TVA_WB_FSAR_Section_15.pdf 41,624,366027_TVA_WB_FSAR_Section_16.pdf 148,067028_TVA_WB_FSAR_Section_17.pdf 144,976Total 391,237,435TVA_WBN-2_Oversized_FSAR_Figures001_TVA_WB_FSAR_Figure_2.5_3.pdf 1,757,743002_TVA_WB_FSAR_Figure_2.5_11.pdf1,689,538 003_TVA_WB_FSAR_Figure_2.5_71.pdf2,263,087004_TVA_WB_FSAR_Figure_2.5_222.pdf909,429 005_TVA_WB_FSAR_Figure_2.5_281_1.pdf2,155,627006_TVA_WB_FSAR_Figure_2.5_281_2.pdf2,117,562 007_TVA_WB_FSAR_Figure_2.5_549_1.pdf3,600,807 008_TVA_WB_FSAR_Figure_2.5_549_2.pdf3,989,180 009_TVA_WB_FSAR_Figure_2.5_549_3.pdf2,863,719 010_TVA_WB_FSAR_Figure_2.5_549_4.pdf2,809,599011TVAWBFSARFigure25550pdf1803985 011_TVA_WB_FSAR_Figure_2.5_550.p df 1 , 803 , 985012_TVA_WB_FSAR_Figure_2.5_551.pdf1,996,869 013_TVA_WB_FSAR_Figure_2.5_554_1.pdf3,081,060 014_TVA_WB_FSAR_Figure_2.5_554_2.pdf1,996,707 015_TVA_WB_FSAR_Figure_2.5_555.pdf1,993,312016_TVA_WB_FSAR_Figure_2.5_556.pdf2,998,087 017_TVA_WB_FSAR_Figure_2.5_571_1.pdf844,484 018_TVA_WB_FSAR_Figure_2.5_571_2.pdf3,128,329 019_TVA_WB_FSAR_Figure_2.5_571_3.pdf3,284,555020_TVA_WB_FSAR_Figure_2.5_571_4.pdf2,142,316 021_TVA_WB_FSAR_Figure_2.5_572.pdf2,196,945Note: Byte amounts in italics are redacted files.Page 2 of 3 ENCLOSURE 4TVA Watts Bar Nuclear Plant Unit 2FSAR Amendment 103 List of Files on Publicly Available OSMFile NameFile Size - Bytes022_TVA_WB_FSAR_Figure_2.5_573.pdf2,013,286023_TVA_WB_FSAR_Figure_2.5_576_1.pdf3,238,525 024_TVA_WB_FSAR_Figure_2.5_576_2.pdf2,151,750 025_TVA_WB_FSAR_Figure_2.5_577.pdf2,207,622 026_TVA_WB_FSAR_Figure_2.5_578.pdf2,080,032 027_TVA_WB_FSAR_Figure_2.5_579.pdf2,308,985 028_TVA_WB_FSAR_Figure_2.5_583.pdf2,487,346 029_TVA_WB_FSAR_Figure_2.5_588.pdf2,528,515 030_TVA_WB_FSAR_Figure_2.5_589.pdf2,480,438 031_TVA_WB_FSAR_Figure_2.5_594.pdf13,054,127 032_TVA_WB_FSAR_Figure_2.5_595.pdf2,323,267 033_TVA_WB_FSAR_Figure_2.5_596.pdf5,732,107 034_TVA_WB_FSAR_Figure_2.5_597.pdf1,287,336 035_TVA_WB_FSAR_Figure_2.5_602.pdf5,549,537 036_TVA_WB_FSAR_Figure_2.5_603.pdf4,830,835 037_TVA_WB_FSAR_Figure_2.5_604.pdf6,392,279038TVAWBFSARFigure25605pdf20823108 038_TVA_WB_FSAR_Figure_2.5_605.p df 20 , 823 , 108Total 131,112,035TVA_WBN-2_Oversized_FSAR_Table001_TVA_WB_FSAR_Table_6.2.4-1.pdf 1,215,577Total 1,215,577Note: Byte amounts in italics are redacted files.Page 3 of 3 ENCLOSURE 5 WBN Unit 2 FSAR A103 List of Commitments E5-1 1. TVA will provide an advance version of Chapter 11 along with answers to the remaining RAI questions in separate correspondence. If found acceptable by the staff, final Chapter 11 updates will be provided in A104.

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