NL-12-2269, SNCH082-RPT-02, Ver. 1.0, Edwin I. Hatch, Unit 2 Seismic Walkdown Report for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, Part 8 of 11

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SNCH082-RPT-02, Ver. 1.0, Edwin I. Hatch, Unit 2 Seismic Walkdown Report for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, Part 8 of 11
ML12355A662
Person / Time
Site: Hatch Southern Nuclear icon.png
Issue date: 11/26/2012
From: Stewart W
Southern Nuclear Operating Co
To:
Office of Nuclear Reactor Regulation
References
NL-12-2269 SNCH082-RPT-02, Ver. 1.0
Download: ML12355A662 (71)
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{{#Wiki_filter:ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 1 of 3 Status: YZ NEI U-]Seismic Walkdown Checklist (SWC)Equipment ID No. 2R43-BO02A Equip. Class!Equipment Description DG 2A LUBE OIL HEA TEXCH Location: Bldg. DIESEL Floor El. 130 Room, Area 2A Manufacturer, Model, Etc. (optional but recommended) Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results ofjudgments and findings. Additional space is provided at the endof this checklist for documenting other comments.Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such Verification)? Y-I NO 2. Is the anchorage free of bent, broken, missing or loose hardware?3. Is the anchorage free of corrosion that is more than mild surface oxidation?

4. Is the anchorage free of visible cracks in the concrete near the anchors?5. Is the anchorage configuration consistent with plant documentation?(Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

YZ NC UII N/AC YO NC UC' N/AC YO NC U0 N/AD Y'I NC UC W/AS YZ NE UE'Enter the equipment class name fromAppendix B: Classes of Equipment. Page 334 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 Of 3 Status: YZ NE] U[']Seismic Walkdown Checklist (SWC)Equipment ID No. 2R43-BOO2A Equip. Class' 21 Equipment Description DG 2A LUBE OIL HEAT EXCH Interaction-Effects 7. Are soft targets free from impact by nearby equipment or structures?

8. Are overhead equipment, distribution systems, ceiling tiles;and lighting, and masonry block walls not likely to collapse onto the equipment?

Light bulbs might fall on the equipment, however, the damage is judged to be not significant since the bulb is very light and the equipment is rugged..9. Do attached lines have adequate flexibility to avoid damage?10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?YN NE] UL] N/AE YN NEI Ur-L N/AU YZ NEI U-- N/AUi YER NEI UrU Other Adverse: Conditions: .1. Have you looked for and found no other seismic conditions that could YN NEI UE]adversely affect the safety functions of the equipment? Comments (Additional pages may be added as necessary) The area walk by-was performed with item 2R43-SOOIA. Evaluated by: Kursat Kinali Date; 91712012 2A~i Wesle. Willia s 9/7/2012 Page 335 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 3 Status: YZ NEI U-]Seismic Walkdown Checklist (SWC)Equipment ID No. 2R43-0002A Equip. Class" 21 Equipment Description DG 2A LUBE OIL HEAT EXCH Photographs Page 336 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet i of 8 Status: YN N1 Ut]Seismic Walkdown Checklist (SWC)Equipment ID No. 2E11-BOO1A Equip. Class, Equipment Description RHR Heat ExchangerfA Location: Bldg. REACTOR , Floor El. 108 Room, Area NE Diagonal Manufacturer, Model, Etc. (optional, but recommended) Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results ofjudgments and findings. Additional space is provided at the end of this checklistfor documenting other comments.Anchorage L. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bentf broken, missing or loose hardware?There are eight anchors attached to the steel frame in four mounting chairs. Two of the bolts have full thread engagement but do not have the required minimum of two threads above the nut; an additional two bolts have bolts approximately 1/4" below the nuts and so do not have full thread engagement (CR.516593).

The bolts are welded to the steel frame, providing additional support for the connection. In addition, the heat exchanger is also supported byfour sway struts below the roof above to prevent overturning of the equipment. The shear strength is not impacted, overturning is restrained, and the center of gravity of the equipment is below the bolts and the vertical seismic acceleration at that leel will not exceed 1.0, so the largest tension load the bolts will see is the preload, which is, already applied. Therefore, the bolts are judged to be acceptable and do not create a potentially adverse seismic condition. Also, each of the HX anchoring chairs have two additional holes drilled in. them. These bolt holes appear to be the original holes for the installation of the RHR BY Bolts installed in these holes would not be able to reach the structural steelflanges in the existing building structure. Therefore, new mounting holes have been provided for installing the RHR HX on. the existing building structure. The current bolts used for the anchorage of this component arejudged by the SWE's to be the same size and strength as the original connections for the holes on the bolting chairs for this component.

3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?Equipment is bolted to steel structure, so there is no concrete.Yr- NO YZ N UEI1 N/A-YZ NEI UEI N/AU YO NEI UI N/AO I Enter theequipment class name from Appendix B: Classes of Equipment:

Page 337 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 8 Status: YM NE] U[E]Seismic Walkdown Checklist (SWC)Equipment ID No. 2E1 1-B00IA Equip. Class'Equipment Description RHR? Heat Exchanger A 5. Is the anchorage configuriation consistent with plant documentation? YE-] NEI UE] N/AI (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6. Based on the above anchorage evaluations, is the anchorage free of YN, NEI UE]potentially adverse seismic conditions?

Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures? YI NE U'- N/AL]8. Are overhead equipment, distribution systems, ceiling tiles and lighting, YN NEI UE] N/AE]!and masonry block walls not likely to collapSe onto the equipmetnt?

9. Do attached lines have adequate flexibility to avoid damage? YN NEI UE] N/AE]10.. Based on the above, seismic interaction evaluations, is equipment free YZ NEI UE]I of potentially adverse seismic interaction effects?The cable raceway support impinges on the RHR Heat Exchanger insulation, and the insulation has been cut away from the member. The raceway support only impacts the insulation, but is at least one inch from the body of the heat exchanger, so there will be no impact between the two components.

Therefore, it is judged that there is no potentially adverse seismic condition. Other Adverise Conditions

11. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment?

YER NE] UED Page 338 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS Seismic Walkdown Checklist (SWC)Equipment ID No. 2E 1-BOOIA Equip. Class, Equipment Description RHR Heat Exchanger A Comments (Additional pages may be added as necessary) None NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 8 Status: YN N[i] U-Evaluated by: John arand Jeff Horton Date: 09/1212012 09/12J2012 Page 339 of 394 0 0-I E.0 0 0 0 03 0 0)CO-I t0 ho CL)0,=.CO)0 m z C/)m C(0 z 0 m m Cl)C/)(D 0 0 CA)~17 60 c', r+LI 00 z 0 C/)0 m C,)5 z.0 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet s of 8 Figure 2 -Equipment Elevation (2El 1-BO01A)Page 341 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 6 of 8 Figure 3 -Bolt Threads below Nut (2El 1-BOOIA)Page 342 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 7 of 8 Figure 4 -Bolt Threads Flush with Nuts (2El I-BOO] A)Page 343 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 8 of 8 Figure 5 -Cable Raceway near Heat Exchanger (2E1 I-B001A)Page 344 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 1 of 8 Status: YM N- U[]Seismic Walkdown Checklist (SWC)Equipment ID No. 2EI 1-BO01B Equip. Class, Equipment Description RHR Heat ExChanger B Location: Bldg. REACTOR Floor El. 108 Room, Area SE Diagonal Unit 2 Manufacturer, Model, Etc. (optional but recommended) Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?There are eight anchor connections*

to the steel frame in four mounting chairs. Two of the bolts have full thread engagement but do not have the required minimum of two threads above the nut (CR 516595). The bolts are welded to the steel frame, providing additional support for the connection, Also, each of the AX anchoring chairs have two additional holes drilled in them. These bolt holes appear to be the original holes for the installation of the RHR HX. Bolts installed in these holes would not be able to reach the structural steel flanges in the existing building structure. Therefore, new mounting holes have been provided for installing the RUR tIX on the existing building structure. The current bolts used for the anchorage of this component are judged by the SWE's to be the same size and strength as the original connections for the holes on the bolting chairs for this component. In addition, the heat exchanger is also supported by four sway struts below the roof above to prevent overturning ofthe equipment. The shear strength isnot impacted, overturning is restrained, and the center of gravity of the equipment is below the bolts and the vertical seismic acceleration at that level will not exceed 1. , so the largest tension load the bolts will see is the preload, which is already applied Therefore, the bolts are judged to be acceptable and do not create apotentially adverse seismic condition.

3. Is the anchorage free.of corrosion that is more than mild surface oxidation?

The boltpaint chipped off in several places, resulting in mild surface oxidation. Since oxidation is only on the surface; the anchors are not degraded Therefore; the anchors are judged not be a seismic concern.4. Is the anchorage free of visible cracks.in the concrete neat. the anchors?Equipment is bolted to steel structure, so there is no concrete.'Enter the equipment class name from Appendix B: Classes of Equipment. YD NO YZ NEI UE- N/AU, YZ NEI UE] N/Al]YEI NEI UE1 N/AZ Page 345 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 8 Status: YN N[] U[]Seismic Walkdown Checklist (SWC)Equipment ID No. 2EI1-BOOIB Equip. Classl 21.Equipment Description RHR Heat Exchanger B 5. Is the anchorage configuration consistent with plant documentation? YEI NEI Uil N/AN (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6. Based onthe above anchorage evaluations, is the anchorage free of Y[ NEI UE potentially adverse seismic conditions?

Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures? YN NEI UE] N/AE]8. Are overhead equipment, distribution systems, ceiling tiles and lighting, YZ NE], UE N/AE]and masonry block walls not likely to collapse onto the equipment?

9. Do attached lines have adequate flexibility to avoid damage? YZ NE UE] N/AE]10. Based on the above seismic interaction evaluations, is equipment free Y0 NE UE]of potentially-adverse seismic interaction effects?The cable raceway support impinges on the RHR Heat Exchanger insulation, and the insulation has been cut away from the member. The raceway support only impacts the insulation, but is at least one inch from the body of the heat exchanger, so there will be no impact between the two components.

Therefore, itis judged that there is no potentially adverse seismic condition. Other Adverse Conditions

11. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment?

YZ NO]UE Page 346 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 8 Status: YZ NEI U[]Seismic Walkdown Checklist (SWC)Equipment ID No. 2E11-BOOIB Equip. Class' 21 Equipment Description RHR Heat Exchanger B Comments (Additional pages may beadded as necessary) There is no identification tag or number on the 2EI1-BOOJB RHR Heat Exchanger B, Evaluated by:-John McFarland Jeff Horton Date: 09/12/2012 09/12/2012 Page 347 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 8 Status: YE' N[] u[]Seismic Walkdown Checklist (SWC)Equipment ID No. 2E11-BOOIB Equip. ClassI 21 Equipment Description RHR Heat Exchanger B Photographs There is no identification tag on the equipment, so this picture does not exist.Figure I -Equipment ID No (2E1 1-B001B)Page 348 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 5 of 8 Figure 2 -Equipment Elevation (2E 1-BOO IB)Page 349 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 6 of 8 Figure 3 -Bolt Threads Flush with Nut (2EI 1-B00 B)Page 350 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 7 of 8 Figure 4 -Chipped Bolt Paint (2El 1-B001B)Page 351 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 8 of 8 Figure 5 -Conduit Support near Heat Exchanger (2El I-B001B)Page 352 of 394 .ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 1 of 4 Status: YX N[:] UF]Seismic Walkdown Checklist (SWC)Equipment ID No. 2T48-AO01 Equip. Class 1 21 Equipment Description UNIT 2 LIQUID NITROGEN STORAGE TANK Location: Bldg. YARD Floor El. 130 Room, Area Unit 2 Nitrogen Storage Tank Room Manufacturer, Model, Etc. (optional but recommended) Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.Anchora2e 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)? Y NDi 2. Is the anchorage free of bent, broken, missing or loose hardware?3. Is the anchorage free of corrosion that is more than mild surface oxidation? Mild surface corrosion was observed at the anchorage. This was judged not to be a seismic concern since it is only at the surface.4. Is the anchorage free of visible cracks in the concrete near the, anchors?5. Is the anchorage configuration consistent with plant documentation?(Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.) The anchorage was checked against the SQUG package dated 2115/94 and Drawing H-25193 Rev. 2.6. Based on the above anchorage eViluations, is the anchorage free of potentially adverse seismic conditions? Y2 NEI UD N/AD YN ND U0 N/AD'Y0 ND UD N/AD Y. NDI UD: N/AD YZ NEI UD-Enter the equipment class name from Appendix B: Classes of Equipment. Page 353 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 4 Status: YZ N[[] U--Seismic Walkdown Checklist (SWC)Equipment ID No. 2T48-AO01 Equip. Classi 21 Equipment Description UNIT 2 LIQUID NITROGEN STORAGE TANK.Interaction Effects 7. Are soft targets free from impact .by nearby equipment or structures? YZ NEI UI- N/AlU 8. Are overhead equipment, distribution systems, ceiling tiles and lighting, YNI NC UF- N/AC and masonry block walls not likely to collapse onto the equipment?'

9. Do attached lines have adequate flexibility to avoid damage?10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?SQUG package noted a possible interaction with the then timber roof on the top of the room and suggested modification.

The roof was replaced later and currently it is steel frame supported corrugated metal decking. This steel frame decking system is seismically adequate by inspection. YID NCI U0 N/AU'YN NEI U-Other Adverse Conditions

11. Havewyou looked for and found no other seismic conditions that could YN NC UC-adversely affect the safety functions of the equipment?

Comments (Additional pages may be added as necessary) None.Evaluated by: KURSA T KINALI =WESLEY WILLIAMS Date: 9/26/2012 9/26/2012 Page 354 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS N Seismic Walkdown Checklist (SWC)Equipment ID No. 2T48-AO01 Equip. Class, 21 Equipment Description UNIT 2 LIQUID NITROGEN STORAGE TANK 10. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 4 Status: YZ N[] U[]Photographs Page 355 of 394 , .ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 4 Page 356 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 1 of 3 Status: YZ I NE] U[]Seismic Walkdown Checklist (SWC)Equipment ID No.. 2Y52-A1I0C Equip. Class, 2.1 Equipment Description FUEL DAY TANK IC Location: Bldg. DIESEL Floor El. 130 Room, Area Day Tank Room Manufacturer, Model, Etc. (optional. but recommended) Instructions for Completing Checklist This checklist

may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results ofjudgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the,50% of SWEL items requiring such verification)? YE3 NZ 2. Is the, anchorage free of bent, broken, missing or loose hardware?3. Is the anchorage free of corrosion that is more than mild, surface oxidation?

4. Is the anchorage free of visible cracks in the concrete near the anchors?'5. Isthe anchorage configuration consistent with plant documentation?(Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)
6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

YN NEI ULI N/Ar]YN NEI UD N/AEl Y9 NOj UL N/AU3 YU-! NEi U-] N/A2 YER NEI UE]' Enter the equipment class name from Appendix B: Classes of Equipment. Page 357 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS Seismic Walkdown Checklist (SWC)NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 3 Status: YN N[I U"-Equipment ID No. 2Y52-A101C Equip. Class' 21 Equipment Description FUEL DAY TANK 1C Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures? YZ NEI UL]. N/AU 8. Are overhead equipment, distribution, systems, ceiling tiles and lighting, YZ NIl U-I N/AU1 and masonry block walls not likely to. collapse onto the equipment?

9. Do attached lineshave adequate flexibility to .avoid. damage?10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?YR NEI UE1 N/AL]YN NEI UE Other Adverse Conditions
11. Have you looked for and found no other seismic conditions that could YS NEI U0]adversely affect the safety functions of the equipment?

Comments (Additional pages may be added as necessary) None.Evaluated by: KURSAT KINALI WESLEY WILLIAMS /Date: 9/12/2012 912/2012 Page 358 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 3 Status: YM N-] U[]Seismic Walkdown Checklist (SWC)Equipment ID No. 2Y52-AI01C Equip. Class' 21 Equipment Description FUEL DAY TANK IC Photographs Page 359 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 1 of 3 Status: YN NEI U[Seismic Walkdown Checklist (SWC)Equipment ID No. 2C41-A001 Equip. Class' 21 Equipment Description SBLC BORON SOLUTION TANK Location: Bldg. RB Floor El. 203 Room, Area 2R414 Manufacturer, Model, Etc. (optional but recommended) Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)? YZ NEI 2. Is the anchorage free of bent, broken, missing or loose hardware?3. Is the anchorage free of corrosion that is more than mild surface oxidation?

4. Is the anchorage free of visible cracks in the concrete near the anchors?5. Is the anchorage configuration consistent with plant documentation?(Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Anchorage configuration was checked against Drawing S-25399, Ver.1.0. Number of bolts and presence of stitch welding were confirmed.

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

YZ NEI UEI N/AD YN NEI UE- N/AD-YZ Nil U-- N/AD YO NE] UE- N/AD YZ NEI UE-1 Enter the equipment class name from Appendix B: Classes of Equipment. Page 360 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 3 Status: YZ N[] U[]Seismic Walkdown Checklist (SWC)Equipment ID No. 2C41-AOts Equip. Class Equipment Description S8LC BORON SOLUTION TAN, K interaction Effects 7. Are soft targets free from impact by nearby equipment or structures? YN NO UC- N/AC 8. Are. overhead equipment, distribution systems, ceiling tiles and lighting, YIN NC-1 UrC N/A-and masonry block walls not likely to collapse onto the equipment?

9. Do attached lines have adequate flexibility to avoid damage?10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?Y0 NEI Un- N/AC3 YR NE U-I Other Adverse Conditions
11. Have you looked for and found no, other seismic conditions that could Y0 NO UC adversely affect the safety functions of the equipment?

Comments (Additional pages may be added as necessary) None Evaluated by: Kursat Kinali ýA kA Wesley Williams / Date: 9/6&2012 9/6/2012 Page 361 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS Seismic Walkdown Checklist (SWC)Equipment ID No. 2C41-A001 Equip. Classi 21 Equipment Description SBLC BORON SOLUTION TANK NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 3 Status: YZ NI] U[]Photographs Page 362 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 1of 4 Status: Y1 NEI- U[J]Seismic Walkdown Checklist (SWC)Equipment ID No. 2R43-AO05A Equip. Class, Equipment Description DG 2A STARTING AIR RECEIV ER Location: Bldg. DIESEL Floor El. 130 Room, Area DIESEL GENERATOR ROOM2A Manufacturer, Model, Etc. (optional but, recommended) Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist, for documenting other comments.Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)? YN NEI 2. Is the, anchorage free of bent, broken, missing or loose hardware?3. Is the anchorage free of corrosion that is more than mild surface oxidation?

4. Is the anchorage free of visible cracks in the concrete near the anchors?5. Is the anchorage configuration consistent with plant documentation?(Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is requiredI.)

Anchorage is consistent with that outlined in calculation C- 117.0, Rev.2.6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions? Y0 NEl Ul- N/AU YS NEI U-] N/AU YO ND UEJ N/AU Y[ NI, UE- N/AEl YO NEI UE IEnter the equipment class name from Appendix B: Classes of Equipment.. Page 363 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 4 Status: NE] U[M]Seismic Walkdown Checklist (SWC)Equipment ID No. 2R43-AOO5A Equip. Class' 21 Equipment Description DG 2A STARTING AIR RECEIVER Interaction Effects.7. Are soft targets free from impact by nearby equipment or structures? YN NEI UE N/AO 8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Y[ NEI UE N/AE and masonry block walls not likely to collapse onto the equipment?

9. Do attached lines have adequate flexibility to avoid damage.?Tubing flexibility at the topis adequate as noted in calculation C- 17.0, Rev. 2.10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?YN NEI UE- N/AE-YN NEI UE Other Adverse Conditions
11. Have you looked for and found no other seismic conditions that.could Yo NE] UO adversely affect the safety functions of the equipment?.

Comments (Additional pages may be added as necessary) See 2R43-SOO1A for A WC information. Evaluated by: Juan Vizcaya Date: 09/26/2012 Patrick Kelly 09/26/2012 Page 364 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS Seismic Walkdown Checklist (SWC)Equipment ID No. 2R43-AOO5A Equip. Class, 21 Equipment Description DG 2A STARTING AIR RECEIVER NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 4 Status: YZ NE] U--]Photographs 1: Equipment MPL # (2R43-AO05A) Page 365 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 4 Page 366 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 1 of 7 Status: YV ND UE]Seismic Walkdown Checklist (SWC)Equipment ID No. 2P70-AO02B Equip. Class' 0 Equipment Description EMER N2 BOTTLE Location: Bldg. REACTOR Floor El. 130 Room, Area RIO7A Manufacturer, Model, Etc. (optional but recommended) Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)? YN NEI 2. Is the anchorage free of bent, broken, missing or loose hardware?Loose bolt from other component or connection is stuck in the anchor bolt recessed tube area for the anchor. The SWE's have determined that this loose bolt will not damage the rack anchor during a seismic event nor is it likely that the bolt will exit the recessed tube area during a seismic event and damage other equipment. Therefore, the loose bolt at this location is seismically acceptable.

3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?5. Is the anchorage configuration consistent with plant documentation?(Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Drawing H-51524, Rev. 0 YN NEI UD:] N/AD YZ ND U[D N/AD YE NI UE[J N/AD YZ NEI U-1 N/AD I Enter the equipment class name from Appendix B: Classes of Equipment. Page 367 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 7 Status: YZ N[- U[-]Seismic Walkdown Checklist (SWC)Equipment ID No. 2P70-AO02B Equip. Class: Equipment Description EMER N2 BOTTLE 6. Based on the above anchorage' evaluations, is the anchorage free of potentially adverse seismic conditions? YZ NEI UEr Interaction Effects 7. Are: soft targets free from impact by nearby equipment or structures?' YN NO UEr N/AEI.8. Are overhead equipment, distribution systems, ceiling tiles and lighting, YI NEI U[3 N/A[]and masonry block walls not likely to collapse onto the. equipment?

9. Do attached lines have adequate flexibility to avoid damage?10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?YZ NEI U0 N/Al YZ NEI UEF Other Adverse Conditions
11. Have you looked for and found no other seismic conditions that. could YIMI NEI UEl adversely affect the safety functions of the equipment?

Comments (Additional pages may be added as necessary) The rack itself has no MPL number to indicate this is the correct component (See CR 518755).Also, there is a Squeeze Bottle, Wrench and paper stuffed inside the top structural tubes of the rack (see CR 518755)Page 368 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS Seismic Walkdown Checklist (SWC)Equipment ID No. 2P70-AO02B Equip. Class 1 0 Equipment Description EMER N2 BOTTLE NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 7 Status: YM N[-- U[]Evaluated by:* John McFarland /0.......Jeff Horton Date: 09/17/2012 09/17/2012 Page 369 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS Seismic Walkdown Checklist (SWC)NO. SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 7 Status: YM N[-] UF]Equipment ID No. 2P70-Ao02 -Equip. Class, 0 Equipment Description EMER N2 BOTTLE Photographs Figure 1 Equipment ID (2P70-AO02B) No Equipment ID Tag Page 370 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 5 of 7 Figure 2 Threaded Fastener Located in Anchor Bolt Recess of Rack Page 371 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 6 of 7 Figure 3 Squeeze Bottle in Top Structural Tube of Frame Page 372 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 7 of 7 Figure 4 Wrench inside Top Structural Steel Tube of N2 Rack Page 373 of 394 .ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 1 of 4 Status: Y[ NE] ur]Seismic Walkdown Checklist (SWC)Equipment ID No. 2R42-SO32B Equip. Class]Equipment Description 125V BATTERY CHARGER 2H Location: Bldg. DIESEL Floor El. 130 Room, Area Battery Charger Room Manufacturer, Model, Etc. (optional but recommended) InStructions for Completing Checklist This checklist may be used to document the results of the Seismic: Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to recordthe results ofjudgments and findings. Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)? Y'I NO 2. Is the anchorage free of bent, broken, missing or loose hardware?3. Is the anchorage free of corrosion that is more than mild surface oxidation?

4. Is the anchorage free of visible cracks in the concrete near the anchors?5. Is the anchorage configuration consistent with plant documentation?(Note: This question only applies ifthe item is one of the 50% for which an anchorage configuration verification is required.)
6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

YZ NEI UDI N/ALI YZ Nr, UD N/AD"I YN NEI UE N/AD YI- NDI UD- N/AZ YN ND UD I Enter theequipment class name from Appendix B: Classes of Equipment Page 374 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 4 Status: YZ] No U[]Seismic Walkdown:Checklist (SWC)Equipment ID No. 2R42-S 0392 Equip. C lass' 16 Equipment Description 125V BATTERY CHARGER 2H, Interaction Effects 7 soft targets free from impact by nearby equipment or strctures? Y0 ND UL] NIAC 8. Are overhead equipment, distribution systems, ceiling tiles and lighting, YZ NJ]i UL N/AC]and masonry block walls not likely to collapse onto the equipment? 9, Do attached lines have adequate flexibility to avoid damage?10.. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?YN NCI UC] N/AC]YC9NEC]UC Other Adverse Conditions 11 Have you looked for and found no otherseismic conditions that could NEI tUC ,adversely affect the safety functions of the equipment? GComponents inside. the panelwere inspected visually in accordance with the direction provided in ithe FAQ related to opening panels. The panel was opened tinder WO# SNC436331. No potentially alverse seismic conditions. were found.Comments (Additional pages may be added as necessary) 9/27/212! -2 927_/201,2: ..Page 375 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 4 Status: YZ NF] U'-Seismic Walkdown Checklist (SWC)Equipment ID No. 2R42-SO32B Equip. Class" 16 Equipment Description 125V BATTERY CHARGER 2H Photographs Page 376 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 4 Page 377 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS Seismic Walkdown Checklist (SWC)NO. SNCH082-RPT-02, VERSION 1.0 Sheet 1 of 5 Status: YZ NM] UL-]Equipment ID No. 2H11 -P602 Equip. Class, 20 Equipment Description Reactor/Containment Cooling & Isolation Panel Location: Bldg. CONTROL Floor El. 164 Room, Area Unit 2 Control Room Manufacturer, Model, Etc. (optional but recommended) Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL.The space below each of the following questions may be used to record the results ofjudgments and.findings. Additional space is provided at the end of this checklist for documenting other comments.Anchoralge

1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)?

YZ Nn 2. is&the anchorage free of bent, broken, missing or loose,hardware?

3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage.

free of visible cracks in the concrete near the anchors?5. Is the anchorage configuration consistent with plant documentation?(Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.) Anchorage configuration is consistent with SEWS package (Dated 0211911994). A# anchors were determined to be installed and free of adverse seismic conditions.

6. Based on the above anchorage evaluations; is the anchorage free of potentially adverse, seismic conditions?

YZ NEI US- N/AU YI NEI US N/AU YI NOl U- N/AS YN NE- US N/AS YN NEI UI I Enter the equipment class name fromAppendix B: Classes of Equipment. Page 378 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS Seismic Walkdown Checklist (SWC)NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 5 Status:; Yt: NF-] U[-E EquipmentID No. 2H11-P602 Equip. Class' 20 Equipment Description Reactor/Contaihment Cooling & Isolation Panel Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures? Components installed inside the panel are adequately spaced and supported.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?

Unlatched lighting covers (diffusers) were observed at three locations at the rear of the panels. The latches for the three covers were not properly engaged at one comer. The cover design was common for the overhead lights at the rear of the panels and the square ones in the front. The diffusers are very light weight and are located sufficiently far from the panels to prevent the diffusers from impacting sensitive equipment even if they were to fall. The scenario of the light covers becoming fully disengaged and then entering into the backs of the open panels or hitting the front of the panels were not credible. Therefore, this not a seismic concern.The frames for the ceiling tiles are judged to be adequate to prevent the tiles from falling during a seismic event. The overhead equipment, distribution systems, and lighting were installed with rigid restraints or rod hung with multiple tie wires to limit horizontal movement.9. Do attached lines have adequate flexibility to avoid damage?Rigid conduits attached to the top of the panels were judged to be seismically acceptable. The rigid conduits are attached to metal wire chase which is also rigidly attached to the panels. Therefore, the differential motion between the wire chase and panels is minimized.

10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse, seismic interaction effects?The connection of Panel 2-H 11-602 to Panel 2-HI 1-603 consisted of 7 bolts instead of 8 bolts. One bolt located in the upper front comer was not installed (see picture).

Details of this connection were not specified in the design documents or SEWS package. However, the configuration and capacity of the 7 installed bolts are adequate to connect the: two cabinets such that there is no differential movement between the two cabinets. Per review of the SEWS package, the panel weight is conservatively approximated to be 83001bs/6ft section. The maximum horizontal acceleration

of the panel is 0.65g. The anchorage to the floor was determined to have sufficient capacity to resist 0. 75g.Therefore, the seismic interaction of the two cabinets was judged to be acceptable.

Considering the capacity of the existing bolts (5/8" diameter) the loads associated with differential movement of the cabinets will be adequately restrained, and the other bolt does not need to be installed. YZ N[l U[-- N/AI-YZ NEl UrI N/AE-Y23 NE"I ULII N/A[]YZ NLEI C Page 379 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS Seism.icWalkdown Checklist (SWC)NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 o.f5 Status Y& NO] UE Equipment ID No.,' 2H.1 IP602 Equip.-C lass, 20 Equipment Description Reactor/Containment Cooling & Isolation Panel Other Adverse Conditions .11. Have you looked ior and found no other seismic conditions that could Y0 Nl U00 adVersely affect the safety functions of the equipment? ýComponents inside the panel wer -inspected visually in aecordance with the direction provided in the FAQ related to opening panels.Comments (Additional pages may be added as necessary) The resolutions to IPEEE outliers were verified. The HVAC diffuser in the ceiling was adequately restrained, and there was no nearby furniture which could potentially interact with the equipment. Evaluaeid Date: 09/18/2012". 09/i18/20 Page 380 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NC Seismic Walkdown Checklist (SWC)Equipment ID No. 2H11 -P602 Equip. Class' 20 Equipment Description Reactor/Containment Cooling & Isolation Panel). SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 5 Status: YN N-] u[-]Photographs Page 381 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 5 of 5 Page 382 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet1 of 5 Status: Y[ N-] Ut-]Seismic Walkdown Checklist (SWC)Equipment ID No. 2G41-F054 Equip. Class,:Equipment Description CST Make-Up Supnly iso AOV Location: Bldg, REACTOR Floor El. 203 Room, Area RH-R18 Manufacturer, Model, Etc. (optional bit' recommended) Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?The equipmentis an inline component, so there is no anchorage.
3. Is the anchorage free of corrosion that is more than mild surface oxidation?
4. Is the anchorage free of visible cracks in the concrete near the anchors?5. Is the anchorage configuration consistent with plant documentation?(Note: This question only applies if the item isi one of the 50% for Which an anchorage configuration verification is required.)
6. Based on the above anchorage evaluations,:

is the anchorage free of potentially adverse seismic conditions? YEI NO YEI NEI UE- N/AO YEI NEI UE- N/AI YEI NEI UEi N/AZ YEI NEI UE N/AO YO NO UE I Enter the equipment class name. from Appendix B: Classes of Equipment. Page 383 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 Of 5 Status: YM NE] U-]Seismic Walkdown Checklist (SWC)Equipment ID No. 2G41-F054 Equip. Class, Equipment Description CST Make-Up Supply Iso AOV Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage?10. Based, on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?YN NEI UEi N/ADl YS NEI UE- NIAEl YZ NlEI UI N/AEl YN NEI UD Other Adverse Conditions 1I. Have you looked for and found no other seismic conditions that could YN NEI U-I adversely affect the safety functions of the equipment?

There is mild surface oxidation on the valve bonnet to body flange bolts. Since oxidation. is only on the surface, the flange bolts are not degraded. Therefore, the bolts arejudged not be aseismic concern.Comments (Additional pages may be added as necessary) None EValuated by: John McFarland Jeff Horton Date: 09/12/2012 09/12/2012 Page 384 of 394 ATTACHMENT 3: SEISMIC WALKIDOWN CHECKLISTS Seismic Walkdown Checklist (SWC)Equipment ID No. 2G4 1-.F054 -Equip. Class, Equipment Description CST Make-Up Supply Iso AOV NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 5 Status: YE Nn] U--Photographs Figure 1 -Equipment ID No (2G41-F054) Page 385 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 5 Figure 2 -Equipment Elevation (2G41-F054) Page 386 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 5 of 5 Figure 3 -Mild Surface Oxidation on Flange Bolts (2G41-F054) Page 387 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 1 of 7 Status: YN NE] Ut]Seismic Walkdown Checklist (SWC)Equipment ID No. 2P52-AO01 Equip. Class'Equipment Description ESS AIR ECC Location: Bldg. Reactor Floor El. 130' Room, Area Torus Room, Bay 10 Manufacturer, Model, Etc. (optional but recommended) .Instructions for Completing Checklist This checklist may be used to document-the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings. Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the 5.0% of SWEL items requiring such verification)? YEI NO 2. Is the anchorage free of bent, broken, missing or loose hardware?3. Is the anchorage free of corrosion that is more than mild surface, oxidation?

4. Is the anchorage free of visible cracks in the concrete near the anchors?5. Is the anchorage configuration consistent with plant documentation?(Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required,)

YN NEI UE- N/AE YZ NEI UE' NIAE YZ NEI UE N/A[]YEI NEI UE- N/A0 Enter the equipment class name from Appendix B: Classes of Equipment. Page 388 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 7 Status: Y2 NE-] U[-Seismic Walkdown Checklist (SWC)Equipment ID.No. 2P52-AO01 Equip. Class]Equipment Description, ESS AIR ECC 6. Based on theabove anchorage evaluations, is the anchorage free of YN Nil U0 potentially adverse seismic conditions? The component support base-plate anchors are closely spaced to pipe support. anchors (See Figure 4 for details). The SWE's have determined that the anchorage is still seismically acceptable with these closely spaced anchors. The component support contains four base-plates with four anchors each. The condition only affects one anchor on one: of these plates.Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures? Y .NEI UI-] N/AE]8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Y9 Nl] Ur1 N/All and masonry block walls not likely to collapse onto the equipment?

9. Do attached lines have adequate flexibility to avoid damage? YN Nil UI' N/AE]10. Based on the above seismic interaction evaluations, is equipment free Y0 NEI UFS of potentially adverse seismic interaction effects?Other Adverse Conditions
11. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment?

There is a ladder in close proximity to 2P52-AO01 that is not tied off to prevent movement (See CR,518746). The SWE's have determined that any movement of the ladder during a seismic event would not damage 2P52-AO01 or its attached piping. Due to the light weight of the ladder and the ruggedness of the component and the fact there are no sensitive components in: proximity to the ladder that could be impacted. Therefore,, the ladder will not adversely affect the safety function of thebcomponent. YN NEI U0 Page 389 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet.3 of 7 Status: YZ N[] U[-]Seismic Walkdown Checklist (SWC)Equipment ID No. 2P52-AO01 Equip. Class' 21 Equipment Description ESS AIR ECC Comments (Additional pages may be added as necessary) None Evaluated by: John McFarland Jeff Horton Date: 09/17/2012 09117/2012 Page 390 of 394 ATTACHMENT 3: SEISMIC WALKIDOWN CHECKLISTS Seismic Walkdown Checklist (SWC)Equipment ID No. 2P52-8 001 Equip. Class, Equipment Description ESS AIR ECC NO. SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 7 Status: YZ NE] U[]Photographs Figure 1 Equipment ID (2P52-AOO 1)Page 391 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 5 of 7 7M Figure 2 Actual Component Page 392 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 6 of 7 Figure 3 Untied Ladder in Proximity to the Component Page 393 of 394 ATTACHMENT 3: SEISMIC WALKDOWN CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 7 of 7 1-1 Figure 4 Closely spaced Anchor Bolts Page 394 of 394 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 ATTACHMENT 4 UNIT 2 -AREA WALK-BY CHECKLISTS (AWCs)NO. SNCH082-RPT-02 A total of 45 Area Walk-bys have been completed. The Checklists are provided within this Attachment. Page 1 of 186 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 1 of 3 Status: YN Nil UFj Area Walk-By Checklist (AWC)Location: Bldg. REACTOR Floor El. 130 Room, Area 1 107A Instructions for Completing CheckliSt This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)? YN NEI UI- N/AO 2. Does anchorage of equipment in the area appear to be free of significant YN NEI UVS N/A[U degraded conditions?

3. Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?4. Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

YN NEI UU N/AU Y0 NEI UU- N/AU If the room in which the SWEL item is located is very large (e.g., Turbine Hall), the area selected should be described. This selected area should be based on judgment, e.g., on the order of about 35 feet from the SWEL item.Page 2 of 186 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 3 Status: YZ N-"] Ur-Area Walk-By Checklist (AWC)Location:. Bldg. REACTOR Floor El. 130 Room, Area' 107A 5. Does it appear that the, area is free ofpotentially adverse seismic interactions that could cause flooding or spray in the area?6. Does it appear that the, area is free of potentially adverse seismic interactions that could cause a fire in the area?7. Does it appear that the area is free of potentially adverse seismic interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)? Y NEr UE- N/AE YZ NEI UE] N/AIE-YI NEI UEr N/AE" 8. Have you looked for and found no other seismic conditions that could adversely affect the: safety functions of the equipment in the area?YZ NE UE-Comments (Additional pages, may be added as necessary) None.Evaluated by: Date: 09/07/2012 09/07/2012 Page 3 of 186 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO Area Walk-By Checklist (AWC)Location: Bldg. REACTOR Floor El. 130 Room, Area, 107A Photographs None.SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 3 Status: Y[ N[J U[]Page 4 of 186 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 1 of 2 Status: YN N-'D UFi Area Walk-By Checklist (AWC)* Location: Bldg. DIESEL FloorEl. 130 Room, Area, SWITCHGEAR ROOM2E Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of YZ NEI U[-I N/AL]potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant YZ NEI U-- N/AL]degraded conditions?
3. Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be*inside acceptable limits)?YI3 NE] UL] N/AL]4. Does it appear that the area is free of potentially adverse seismic spatial Y10 NE] UL] N/AL]interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

'If the room in which the SWEL item is located is very large (e.g., Turbine Hall), the area selected should be described. This selected area should be based on judgment, e.g., on the order of about 35 feet from the SWEL item.Page 5 of 186 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 2 Status: YX NE] Ur]Area Walk-By Checklist (AWC)Location: Bldg. DIESEL Floor El. 130. Room, Area' SWITCHGEAR ROOM2E 5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic interactions that could.cause a fire in the area?7. Does it appear that the area is free of potentially adverse seismic interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)? Y23 NEI U-1 N/AEl YN NEI U-1 N/AR YZ NEI U[-] N/AU 8. Have you looked for and found no other seismic conditions. that could Y0I NEI UEr adversely affect the safety functions of the equipment in the area?Comments (Additional pages may be added as necessary) None.Evaluated by: Juan Vizca Date: 09/07/2012 Patrick Kefi .... ...09/07/2012 Page 6 of 186 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet I of 4 Status: Y[ N[] U[]Area Walk-By Checklist (AWC)Location: Bldg. CONTROL Floor El. 130 Room, Areai 2L48-C34 Instructions for Completing, Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided, at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)? YER NEI- UF N/A-2. Does anchorage of equipment in the area appear to be free of significant YZ NEI UF- N/AL degraded, conditions?

3. Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?4. Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

YZ NO UL- N/ALI YN NEl UL- N/Al[' If the room in which the, SWEL item is located is very large (e.g., Turbine Hall), the area selected should be described. This selected area should be based on judgment, e.g., on the order of about 35 feet from the SWEL item.Page 7 of 186 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 2 of 4 Status: Y[ Nn UF-Area Walk-By Checklist (AWC)Location: Bldg. CONTROL Floor El. 130 Room, Area 1 2L48-C34 5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?7. Does it appear that the area is free of potentially adverse seismic interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e~g., scaffolding, lead shielding)? YN NOIl Ur- N/Al]YZ NEI UL- N/Al YZ NEI UF- N/Al 8. Have you looked forand found no other seismic conditions that could YN NEl Ul adversely affect the safety functions of the equipment in the area?There are eight screws missing (six on the top and two on the bottom)on the front panel cover adjacent to Penetration 2Z43-HIOO2D (CR 519565). The remaining screws arejudged sufficient to restrain the panel cover in the case of a seismic event. Therefore, there is no potentially adverse seismic condition.. Comments (Additional pages may be added as necessary) None Evaluated by: John McFarland --7 Date: 09/18/2012 Jeff Horton 09/18/,2012 Page 8 of 186 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 3 of 4 Status: Y[ NF- U-]Area Walk-By Checklist (AWC)Location: Bldg. CONTROL Floor El. 130 Room, Area' 2L48-C34 Photographs Figure 1 -Missing Screws at Top of Panel (2L48-C34) Page 9 of 186 ATTACHMENT 4: AREA WALK-BY CHECKLISTS NO. SNCH082-RPT-02, VERSION 1.0 Sheet 4 of 4 Figure 2 -Missing Screws at Bottom of Panel (2L48-C34) Page 10 of 186}}

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