NL-13-089, Indian Point, Unit 3, Enclosure to NL-13-089, Seismic Walkdown Report Update, Part 6 of 6

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Indian Point, Unit 3, Enclosure to NL-13-089, Seismic Walkdown Report Update, Part 6 of 6
ML13176A010
Person / Time
Site: Indian Point Entergy icon.png
Issue date: 05/24/2013
From: Lo K
Entergy Nuclear Northeast
To:
Office of Nuclear Reactor Regulation
References
NL-13-089
Download: ML13176A010 (158)
v • d • e


Text

{{#Wiki_filter:ATTACHM E Sheet 1 of 4T 9.6 6 SEISMIC WALKDOWN CHECKLIST FORM IP3 Status: YEE NEI UD- R1 Equip. Class 1 14 Seismic Walkdown Checklist (SWC) SWELl-064 Equipment ID No. 31PP Equipment Description 125VDC POWER PANEL 31 Location: Bldg. CB Floor El. 33-O" Room, Area 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)? YE NDl The anchorage configuration verification is required.2. Is the anchorage free of bent, broken, missing or loose hardware?The panel is mounted to the wall and the anchorage cannot be visually inspected since the anchorage is behind a panel cover. The panel cover is secured with 3 bolts on each side. Panel was removed in 3R1 7 to allow for inspection of the anchorage and interiors. No bent, broken, missing, or loose hardware was observed.3. Is the anchorage free of corrosion that is more than mild surface oxidation? Panel was removed in 3R1 7 to allow for inspection of the anchorage and interiors. The anchorage is free of corrosion that is more than mild surface oxidation.

4. Is the anchorage free of visible cracks in the concrete near the anchors?YN NEI UIu N/A--R1 YIE NEI uID N/AD-YE NEI UDI N/AD--Panel was removed in 3R1 7 to allow for inspection of the anchorage and interiors.

The anchorage is the through bolt type and is free of visible cracks in the masonry block near the anchors.Enter the equipment class name from EPRI 1025286, Appendix B: Classes of Equipment. EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 2 of 6 IP3 Status: YIZ N-- UFI~Seismic Walkdown Checklist (SWC) SWELl-064 Equipment ID No. 31PP Equip. Class 1 14 Equipment Description 125VDC POWER PANEL 31 5. Is the anchorage configuration consistent with plant documentation? YE N[Ii U-I N/A--(Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.) See #2 details.A drawing of the panel anchorage shows 6 bolts. Inspection of the anchorage was performed inside Battery Room 31 and verified to be (6)- Y4" through bolts.Anchorage details provided in SEWS for 125 VDC Power 31 conservatively used (4) -3/8" Wegit bolts even though verified to be through bolts. The allowable capacity for the (4) -3/8" Wegit bolts are much smaller than the actual capacity of the (6) -Y4" through bolts used.6. Based on the above anchorage evaluations, is the anchorage free of YE N[D U[iI potentially adverse seismic conditions? See #2 for details.Interaction Effects R1 R1 7. Are soft targets free from impact by nearby equipment or structures? Yes, soft targets are 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?

The masonry block wall for Battery Room 32 is adjacent to the equipment. This wall was evaluated as part of the IEB 80-11 analysis and found to be seismically qualified (Calculation 6620.210-1-CB-001-L, wall 52B)9. Do attached lines have adequate flexibility to avoid damage?YEA N[:] uDl N/ADl Y[ NDI U'-D N/AD YIZ NEI U-' N/A--Attached lines have adequate flexibility to avoid damage.EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 3 of 6 IP3 Status: YIZ ND 1U[--Seismic Walkdown Checklist (SWC) SWELl-064 Equipment ID No. 31PP Equip. Class 1 14 Equipment Description 125VDC POWER PANEL 31 10. Based on the above seismic interaction evaluations, is equipment free YEZ NE] U[-]of potentially adverse seismic interaction effects?Yes, based on the above seismic interaction evaluations, the equipment is free of potentially adverse seismic interaction effects.Other Adverse Conditions

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

We have looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment. Comments (Additional pages may be added as necessary) The door on the panel cover plate was opened and faces of the breaker/switches were examined.Panel cover was removed in 3R1 7 for proper anchorage and internal examination. The through bolts anchorage was inspected from the inside of Battery Room 31.

References:

SEWS for 125 VDC Power Panel #31 9321-F-30523, Rev. 50, EQUIPMENT ARRANGEMENT CONTROL BUILDING AWC-007 R1 R1 y~J~NU~Evaluated by: Dan Nuta Date: 3/18/2013 Kai Lo /C. -3/18/2013 EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKOOWN CHECKLIST FORM ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 4 of 6 IP3 Status: YE NEIr U-- R1 Equip. Class 1 14 Seismic Walkdown Checklist (SWC) SWELl-064 Equipment ID No. 31PP Equipment Description 125VDC POWER PANEL 31 Photographs R1 Note: 31PP Note: Through bolts from panel side EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM ATTACHMENT 9.6 SEISMIC WALKOOWN CHECKLIST FORM Sheet 5 of 6 IP3 Photographs R1 Note: Through bolts from inside of Battery Room 31 Nowe: Through bolts from inside of Battery Room 31 EN-DC-168 REV 0 -1 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM ATTACHMENT 9.6 SEISMIC WALK DOWN CHECKLIST FORM Sheet 6 of 6 IP3 Photographs R1 Note: Through bolts from inside of Battery Room 31 EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet I of 5 IP3 Status: YZ NEi- U--Seismic Walkdown Checklist (SWC) SWELl-071 Equipment ID No. BATT CHGR 33 Equip. Class 1 16 Equipment Description BATTERY Location: Bldg. CB Floor El. 15'-O" Room, SWITCHGEAR ROOM Area 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.R1 Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)? YS NEI The anchorage configuration verification is required.2. Is the anchorage free of bent, broken, missing or loose hardware?Anchorage is free of bent, broken, missing or loose hardware.3. Is the anchorage free of corrosion that is more than mild surface oxidation? The anchorage is free of corrosion that is more than mild surface oxidation.

4. Is the anchorage free of visible cracks in the concrete near the anchors?YO Nn U'- N/A YEA NEI UE] N/A[L YM NEI UL[- N/A--The anchorage is free of visible cracks in the concrete near the anchors.Enter the equipment class name from EPRI 1025286. Appendix B: Classes of Equipment.

EN-DC-168 REV 0 ATTACHMENT 9.6 Sheet 2 of 5 Seismic Walkdown Checklist (SWC) SWELl -071 Equipment ID No. BAiTTCHGR 33 SEISMIC WALKDOWN CHECKLIST FORM IP3 Status: YZ NF-I UI- R1 Equip. Class 1 16 Equipment Description BATTERY 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.) SQUG analysis shows bolt pattern at 18" x 30.5" and field measurement is 16 Y2" x 29". The load factor from SQUG is equal to 2.18. Based on the as-found bolt dimensions, it is estimated that the variation will not affect the acceptability of the anchorage.

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

YE] NE uIE] N/A[-]YE NEI uEl Yes, based on the above anchorage evaluations, the anchorage is free of potentially adverse seismic conditions. Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures? There is approximately 3" clearance to a telephone acoustic shelter The telephone structure appears to be solidly anchored to the floor and was accepted in the SQUG analysis as being rigid and not subject to interaction effects. Although the anchorage method could not be determined by a visual examination it was confirmed that the assembly is rigid and is not expected to deflect sufficiently during a seismic event to result in interaction with the cabinet.8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment? The fluorescent fixture above the cabinet is well anchored to its supporting structure. However, there is no restraint for the fluorescent bulb in the fixture. In a seismic event it could loosen and fall. CR-IP3-2012-03123 was issued to address the lack of restraint of the bulbs.9. Do attached lines have adequate flexibility to avoid damage?YU NErI U] N/A[]YE] NE UE7 N/AE]YO NE] UE1 N/AL]Attached lines have adequate flexibility to avoid damage.EN-DC-168 REV 0 ATTACHMENT 9.6 Sheet 3 of 5 Seismic Walkdown Checklist (SWC) SWELI-071 Equipment ID No. BATT CHGR 33 SEISMIC WALKDOWN CHECKLIST FORM IP3 Status: YE NEI- U-- R1 Equip. Class 1 16 Equipment Description BATTERY 10. Based on the above seismic interaction evaluations, is equipment free YO NI-- ULI of potentially adverse seismic interaction effects?Yes, based on the above seismic interaction evaluations, the equipment is free of potentially adverse seismic interaction effects.Other Adverse Conditions

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

Yes, we have looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment. Cabinet was able to be opened pre-outage and a review of the integrity of the contents was performed. Internal component connections are good.There is no corrosion except for a slightly rusted nut with no washer on the back cover panel. The panel has 6 screws and structurally is acceptable. Comments (Additional pages may be added as necessary)

References:

9321-F-30523, Rev. 50 SEWS for Battery Charger 33 AWC-002 R1 Evaluated by: Dan Nuta Kai Lo /c6 Date: 2/20/13 Date: 2120/13 EN-DC-168 REV 0 ATTACHMENT 9.6 Sheet 4 of 5 Seismic Walkdown Checklist (SWC) SWELl-071 Equipment ID No. BATT CHGR 33 Equipment Description BATTERY SEISMIC WALKDOWN CHECKLIST FORM IP3 Status: YE NEIr U[--] RI Equip. Class 1 16 Photographs Note: Front Note: Acoustic telephone shelter adjacent to battery charger.EN-DC-168 REV 0 ATTACHMENT 9.6 Sheet 5 of 5 SEISMIC WALKDOWN CHECKLIST FORM IP3 Status: YZ NEI UEL] R1 Equip. Class 1 16 Seismic Walkdown Checklist (SWC) SWELl-071 Equipment ID No. BA7T CHGR 33 Equipment Description BATTERY R1 Note: Base plate of acoustic telephone shelter Note: Cabinet door opened to reveal the interior components and connections.. EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 1 of 4 IP3 Status: YZ ND- UD- R1 Seismic Walkdown Checklist (SWC) SWELl-072 Equipment ID No. BATT CHGR 34 Equip. Class 1 16 Equipment Description BATTERY CHARGER Location: Bldg. CB Floor El. 33-O" Room, Area 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 YN ND of the 50% of SWEL items requiring such verification)? The anchorage configuration verification is required.2. Is the anchorage free of bent, broken, missing or loose hardware? Y] ND: UD-- N/AD The anchorage is free of bent, broken, missing or loose hardware.3. Is the anchorage free of corrosion that is more than mild surface YED NDI UD- N/AD-oxidation? The anchorage is free of corrosion that is more than mild surface oxidation.

4. Is the anchorage free of visible cracks in the concrete near the Y[Z NDI uD:] N/A[-]anchors?The anchorage is free of visible cracks in the concrete near the anchors.Enter the equipment class name from EPRI 1025286, Appendix B: Classes of Equipment.

EN-DC-168 REV 0 ATTACHMENT 9.6 Sheet 2 of 4 Seismic Walkdown Checklist (SWC) SWELl -072 Equipment IDNo. BA7TTCHGR 34 SEISMIC WALKDOWN CHECKLIST FORM IP3 Status: YEZ NEI U-7 R1 Equip. Class 1 16 Equipment Description BATTERY CHARGER 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 for Battery Charger 34.6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions? The anchorage is free of potentially adverse seismic conditions. YIZ ND- UiE] N/A[-YZ NEI UE]Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures? Obeserved a Unistrut frame with two Unistrut columns on both sides of the cabinet with approximately 1" of clearance (see attached photo).LB-03 evaluation was performed for the seismic interaction and the 1" clearance is adequate for the combined seismic displacement of the Battery Charger and the Unistrut frame.8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment? Overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse.9. Do attached lines have adequate flexibility to avoid damage?YE NE-I U- N/AL7 YE NE-] U[L N/AL YE NEI U[- N/A--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?Based on the above seismic interaction evaluations, the equipment is free of potentially adverse seismic interaction effects.Y[E NEI uL EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 3 of 4 IP3 Status: YIZ NOII U- R1 Seismic Walkdown Checklist (SWC) SWELl-072 Equipment ID No. BATT CHGR 34 Equip. Class 1 16 Equipment Description BATTERY CHARGER Other Adverse Conditions

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

Internal connections are good and no corrosion was observed. The back cover panel is missing 1 out of 6 screws. The remaining five R1 screws will have adequate structural capability to hold the panel in place during a design basis seismic event because the panel's weight is light.Yes, we have looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment. Comments (Additional pages may be added as necessary) Cabinet was opened pre-outage to examine internal components. R1

References:

9321-F-30523, Rev. 50 SEWS for Battery Charger 34 Evaluated by: Dan Nuta" Date: 2/20/13 Kai Lo -- 2/20/13 EN-DC-168 REV 0 ATTACHMENT 9.6 Sheet 4 of 4 Seismic Walkdown Checklist (SWC) SWELl-072 Equipment ID No. BATT CHGR 34 Equipment Description BATTERY CHARGER SEISMIC WALKDOWN CHECKLIST FORM IP3 Status: Y[ NEI- UI- R1 Equip. Class 1 16 Photographs R1 Note: Battery charger 34 Note: Cabinet door opened to reveal the interior and connections. EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet I of 5 IP3-Status: YIZ ND-- UL7 Seismic Walkdown Checklist (SWC) SWELl-073 Equipment ID No. 31 INVERTER Equip. Class 1 16 Equipment Description STATIC INVERTER 31 Location: Bldg. CB Floor El. 33-0" Room, Area 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 R1 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)? Y[ ND The anchorage configuration verification is required.2. Is the anchorage free of bent, broken, missing or loose hardware?The anchorage is free of bent, broken, missing or loose hardware.3. Is the anchorage free of corrosion that is more than mild surface oxidation? The anchorage is free of corrosion that is more than mild surface oxidation.

4. Is the anchorage free of visible cracks in the concrete near the anchors?YE NEI UD N/A--YEZ NDI UD N/AD YEE NEI ULD N/AD The anchorage is free of visible cracks in the concrete near the anchors.Enter the equipment class name from EPRI 1025286, Appendix B: Classes of Equipment.

EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 2 of 5 IP3-Status: ND UD--Seismic Walkdown Checklist (SWC) SWELl-073 Equipment ID No. 31 INVERTER Equip. Class 1 16 Equipment Description STATIC INVERTER 31 5. Is the anchorage configuration consistent with plant documentation? YE ND UD N/AD (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 for STATIC INV 31.6. Based on the above anchorage evaluations, is the anchorage free of YZ NDI UE-D potentially adverse seismic conditions? Yes, based on the above anchorage evaluations, the anchorage is free of potentially adverse seismic conditions. Interaction Effects R1 7. Are soft targets free from impact by nearby equipment or structures? Masonry block wall at adjacent Battery Room 34 is remote from the equipment and was evaluated as part of the IEB 80-11 analysis and found to be seismically qualified.

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

Fluorescent bulbs in overhead lighting are not secured to the light fixture. This has been addressed by CR-IP3-2012-03123. Masonry block wall at Battery Room 31 which is near the equipment was evaluated as part of the IEB 80-11 analysis (Calculation 6620.210-1-CB-001-L, wall 52B) and found to be seismically qualified.

9. Do attached lines have adequate flexibility to avoid damage?Y[ NDI U[D- N/AD YDI NE UD N/AD-]YE NDI UD N/AD 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?Yes, based on the above seismic interaction evaluations, the equipment is free of potentially adverse seismic interaction effects.YEZ ND UD EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 3 of 5 IP3-Status: N I UI--Seismic Walkdown Checklist (SWC) SWELl-073 Equipment ID No. 31 INVERTER Equip. Class 1 16 Equipment Description STATIC INVERTER 31 Other Adverse Conditions
11. Have you looked for and found no other seismic conditions that could YO NE] UI-adversely affect the safety functions of the equipment?

Cabinet doors were opened in 3R1 7 to evaluate internal components. There are no other seismic conditions that could adversely affect the safety functions of the equipment. Comments (Additional pages may be added as necessary)

References:

9321-F-65013, Rev. 1 9321-F-30523, Rev. 50 SEWS for 25 KVA Static Inverter #32 AWC-007 R1 R1 Evaluated by: Dan Nuta , Kai Lo Date: 3/15/2013 Date: 3/15/2013 EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 4 of 5 IP3-Status: YZ NE] UI- R1 Equip. Class' 16 Seismic Walkdown Checklist (SWC) SWELl-073 Equipment ID No. 31 INVERTER Equipment Description STATICINVERTER31 Photographs R1 Note: STATIC INVERTER 31 Note: Cabinet door opened to reveal the intedor and connections. EN-DC-168 REV 0 PhoTogACHMETs. SEISMIC WALKIDOWN CHECKLIST FORM Sheet 5 of 5 IP3 Photographs R1 Note: Cabinet door opened to reveal the interior and connections. Note: Cabinet door opened to reveal the interior and connections. EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 1 of 5 IP3 Status: YE NEI Ur-Seismic Walkdown Checklist (SWC) SWELl-074 Equipment ID No. 32 INVERTER Equip. Class 1 16 Equipment Description STATIC INVERTER 32 Location: Bldg. CB Floor El. 33-0" Room, Area 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.R1 Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)? YE N[-]The anchorage configuration verification is required.2. Is the anchorage free of bent, broken, missing or loose hardware?The anchorage is free of bent, broken, missing or loose hardware.3. Is the anchorage free of corrosion that is more than mild surface oxidation? The anchorage is free of corrosion that is more than mild surface oxidation.

4. Is the anchorage free of visible cracks in the concrete near the anchors?YEZ NEI uLIE N/A[:j YEZ NEI U-- N/A-YIE NEI UIE] N/A[-The anchorage is free of visible cracks in the concrete near the anchors.Enter the equipment class name from EPRI 1025286. Appendix B: Classes of Equipment.

EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 2 of 5 IP3 Status: YN NOI UOi- R1 Seismic Walkdown Checklist (SWC) SWELl-074 Equipment ID No. 32 INVERTER Equip. Class 1 16 Equipment Description STATIC INVERTER 32 5. Is the anchorage configuration consistent with plant documentation? YO NEI U[] N/A--(Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.) Anchorage is consistent with SEWS for STATIC INV 32.6. Based on the above anchorage evaluations, is the anchorage free of YO NEI ULI potentially adverse seismic conditions? Yes, based on the above anchorage evaluations, the anchorage is free of potentially adverse seismic conditions. Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures? YE N- UrI- N/A[U Yes, soft targets are free from impact by nearby equipment or structures.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Y'I NO UEi- N/AIZ and masonry block walls not likely to collapse onto the equipment?

Flourescent bulbs in overhead lighting are not secured to the light fixture. This is addressed in CR-IP3-2012-03123. The masonry block wall at Battery Room 32 adjacent to the equipment was evaluated in the IEB 80-11 analysis (Calculation 6620.210-1-CB-001-K, wall 52B) and found to be adequate.9. Do attached lines have adequate flexibility to avoid damage? YO N[-] UI- N/A[]Attached lines have adequate flexibility to avoid damage.10. Based on the above seismic interaction evaluations, is equipment free Y[Z N[D U-II of potentially adverse seismic interaction effects?Yes, based on the above seismic interaction evaluations, the equipment is free of potentially adverse seismic interaction effects.EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 3 of 5 1P3 Status: YE NEI U-i R Seismic Walkdown Checklist (SWC) SWELl-074 Equipment ID No. 32 INVERTER Equip. Class 1 16 Equipment Description STATIC INVERTER 32 Other Adverse Conditions

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

Cabinet doors were opened in 3R1 7 to evaluate internal components. There are no other seismic conditions that could adversely affect the R1 safety functions of the equipment. Comments (Additional pages may be added as necessary)

References:

SEWS for 25 KVA Static Inverter #32 9321-F-50523, Rev. 50 9321-F-65013 AWC-007 Evaluated by: Dan Nuta " " Kai Lo Date: 3/11/2013 Date: 3/11/2013 EN-DC-168 REV 0 ATTACHMENT 9.6 Sheet 4 of 5 Seismic Walkdown Checklist (SWC) SWELl-074 Equipment ID No. 32 INVERTER Equipment Description STATIC INVERTER 32 Photographs SEISMIC WALKDOWN CHECKLIST FORM IP3 Status: Y[ NO Ur-l Equip. Class 1 16 R1 R1 Note: 32 INVERTER Note: Cabinet door opened to reveal the interior and connections. EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 5 of 5 IP3 Photographs R1 Note: 1 Note: Cabinet door opened to reveal the interior and Cabinet door opened to reveal the interior and connections. connections. EN-DC-168 REV 0 ATTACHMEIP Sheet I of iT 9.6 5 SEISMIC WALKDOWN CHECKLIST FORM IP3 Status: Y0 NEI UD-- R1 Seismic Walkdown Checklist (SWC) SWELl-075 Equipment ID No. 33 INVERTER Equip. Class 1 16 Equipment Description STATICINVERTER33 Location: Bldg. CB Floor El. 33-0" Room, Area 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 YZ NII of the 50% of SWEL items requiring such verification)? Yes, the anchorage configuration verification is required.2. Is the anchorage free of bent, broken, missing or loose hardware?Yes, the anchorage is free of bent, broken, missing or loose hardware.3. Is the anchorage free of corrosion that is more than mild surface oxidation? Yes, the anchorage is free of corrosion that is more than mild surface oxidation.

4. Is the anchorage free of visible cracks in the concrete near the anchors?Yes, the anchorage is free of visible cracks in the concrete near the anchor.YE NI U['-] N/AD-Y[ NDl UD-] N/ADl YE N[-] UD- N/AD1 Enter the equipment class name from EPRI 1025286, Appendix B: Classes of Equipment.

EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 2 of 5 IP3 Status: Yr ND I UD-Seismic Walkdown Checklist (SWC) SWELl-075 Equipment ID No. 33 INVERTER Equip. Class 1 16 Equipment Description STATIC INVERTER 33 5. Is the anchorage configuration consistent with plant documentation? YEA ND] U[D] N/A[:](Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.) Yes, the anchorage configuration is consistent with SEWS for STATIC INV 33.6. Based on the above anchorage evaluations, is the anchorage free of Y[E NDI UDl potentially adverse seismic conditions? Yes, based on the above anchorage evaluations, the anchorage is free of potentially adverse seismic conditions. Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures? Yes, soft targets are free from impact by nearby equipment or structures. YE NDI UD- N/AD 8. Are overhead equipment, distribution systems, ceiling tiles and lighting, YZ NDI UD N/ADl and masonry block walls not likely to collapse onto the equipment? Yes, overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls are not likely to collapse onto the equipment.

9. Do attached lines have adequate flexibility to avoid damage? YIZ NDI UD:] N/AD-Yes, attached lines have adequate flexibility to avoid damage.10. Based on the above seismic interaction evaluations, is equipment free YE NDI UD of potentially adverse seismic interaction effects?Yes, based on the above seismic interaction evaluations, the equipment is free of potentially adverse seismic interaction effects.EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 3 of 5 1P3 Status: YZ NEI UD Seismic Walkdown Checklist (SWC) SWELl-075 Equipment ID No. 33 INVERTER Equip. Class 1 16 Equipment Description STATIC INVERTER 33 Other Adverse Conditions
11. Have you looked for and found no other seismic conditions that could YEE ND U[-]adversely affect the safety functions of the equipment?

Cabinet doors were opened in 3R1 7 to evaluate internal components. There are no other seismic conditions that could adversely affect the safety functions of the equipment. Two pieces of tie wrap were found in the bottom shelf of the inverter cabinet. This is a house keeping issue. The supervisor performing the maintenance was notified to remove the tie wraps.Comments (Additional pages may be added as necessary)

References:

SEWS for 25 KVA Static Inverter #33 9321-F-30523, Rev. 50 AWC-007 R1 R1 Evaluated by: Dan Nuta Date: 3/7/2013 KaiLo 1X1.. C. _ 3/7/2013 EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 4 of 5 IP3 Status: YE N] U[I Seismic Walkdown Checklist (SWC) SWELl-075 Equipment ID No. 33 INVERTER Equip. Class 1 16 Equipment Description STATIC INVERTER 33 Photographs R1 R1 Note: STATIC INVERTER 33 Note: STA TIC INVERTER 33 EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 5 of 5 IP3 Photographs R1 Note: STATIC INVERTER 33 Cabinet door opened to reveal the interior and connections. Note: Ttie wraps on bottom shelf EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet I of 7 Status: YIZ ND- UI Seismic Walkdown Checklist (SWC) SWELl-079 Equipment ID No. RACK#19 Equip. Class 1 18 Equipment Description PRESSURIZER LEVEL TRANSMITTER CABINET Location: Bldg. VC Floor El. 68-0" Room, Area 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)? YE NEI YES CHECK THE ANCHORAGE 2. Is the anchorage free of bent, broken, missing or loose hardware?The top of Hilti bolt hex nut is flush with the bolt head. This is acceptable per calculation IP3-CALC-MUL T-0O734. (page 6)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?YE N[D ur- N/A[--YE NDI u[-] N/AD YE ND-] UD- N/AD I Enter the equipment class name from EPRI 1025286. Appendix B: Classes of Equipment.

EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 2 of 7 Status: YE NEI UD-Seismic Walkdown Checklist (SWC) SWELl-079 Equipment ID No. RACK#19 Equip. Class 1 18 Equipment Description PRESSURIZER LEVEL TRANSMITTER CABINET 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 following discrepancies were found between the anchorage configuration shown on Drawing 9321-F-70553 Section A-A and the as built condition:

1. The drawing shows all anchor bolts are Y4" but six of the bolts observed in the three accessible compartments are Y2" diameter.A second walkdown confired that there is a total of six Y 2" bolts in all 4 compartments.
2. The bolts located on the front side of the rack are 1.5" to 2.25" to the concrete edge, less than the normal required edge distance to achieve full capacity per the Hilti Bolt requirements.
3. Section A-A of Dwg. 9321-F-70553 is typical for both Rack 19 and 21. The two racks must have their own individual anchorage plan because the two configurations, including the floor penetrations, are different.

CR-IP3-2013-01440 was generated to resolve the above issues.There is no operability concern because a license basis evaluation (LB-22) for the as-built anchorage configuration was performed and found that the as-built configuration is structurally adequate when analyzed for seismic loads associated with a postulated SSE occurrence. The drawing and calculation need to be revised to show the actual as built configuration.

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

YE]- NM UE- N/A--YE NEIUE Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures? YN NEJ UD N/AE1 EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 3 of 7 Status: Y[ NEI UI-1 Seismic Walkdown Checklist (SWC) SWELl-079 Equipment ID No. RACK#19 Equip. Class 1 18 Equipment Description PRESSURIZER LEVEL TRANSMITTER CABINET S. Are overhead equipment, distribution systems, ceiling tiles and lighting, YE NEI UL- N/A-and masonry block walls not likely to collapse onto the equipment?

9. Do attached lines have adequate flexibility to avoid damage? Y] NEil UE-I N/A[l 10. Based on the above seismic interaction evaluations, is equipment free YN NEI UM-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?

YE NEI UL Comments (Additional pages may be added as necessary)

References:

9321-F- 70273 Containment Building Instrument Arrangement Sheet 1 Instrumentation 9321-F-70513 Transmitter Racks Piping Arrangement -Sheet No. 4 Instrument 9321-F-70553 Transmitter Racks Piping Arrangement -Sheet No. 5 Instrument 20824 7 Modification to Pressurizer Level Transmitter Cabinet Rack No. 19 Instrumentation Calculation 6604-003-CALC-322, Transmitter Rack 19 -Seismic Qualification SEWS for Rack 19 CR-IP3-2013-01440 AWC-51 EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 4 of 7 Status: YE NilI U-I Seismic Walkdown Checklist (SWC) SWELl-079 Equipment ID No. RACK#19 Equip. Class 1 18 Equipment Description PRESSURIZER LEVEL TRANSMITTER CABINET Evaluated by: Dan Nuta Date: 3-9-2013 Kai Lo IC- 3-9-2013 EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 5 of 7 Status: YE NF] UI-Seismic Walkdown Checklist (SWC) SWELl-079 Equipment ID No. RACK#19 Equip. Class 1 18 Equipment Description PRESSURIZER LEVEL TRANSMITTER CABINET Photographs Note: PRESSURIZER LEVEL TRANSMITTER CABINET Rack 19 Note: Side view of the rack EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 6 of 7 Seismic Walkdown Checklist (SWC) SWELl-079 Equipment ID No. RACK#19 Equipment Description PRESSURIZER LEVEL TRANSMITTER CABINET Status: YZ Nil U[I Equip. Class' 18 Nole: When facing the rack, this is the right side, first compartment. Note: First compartment from the right side EN-DC-168 REV 0 ATrACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 7 of 7 Note: Third compartment from the right Note: Second compartment from the right EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet I of 6 Status: Y[I ND-1 U--1 Seismic Walkdown Checklist (SWC) SWELl-080 Equipment ID No. RACK#21 Equip. Class 1 18 Equipment Description STEAM GENERATORS LEVEL TRANSMITTER Location: Bldg. VC Floor El. 68'-0" Room, Area 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)? YES CHECK THE ANCHORAGE Y[ 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? Mild surface corrosion on one hex nut in the first compartment from the left side. (facing the rack)4. Is the anchorage free of visible cracks in the concrete near the anchors?YE NEI LID N/AD-YIE NDI UEI N/A[--YUZ Ni ULID N/A[-D I Enter the equipment class name from EPRI 1025286, Appendix B: Classes of Equipment. EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 2 of 6 Status: YE NEI U-Seismic Walkdown Checklist (SWC) SWELl-080 Equipment ID No. RACK#21 Equip. Class 1 18 Equipment Description STEAM GENERATORS LEVEL TRANSMITTER

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 following discrepancies between the anchorage configuration shown on Drawing 9321-F-70553 Section A-A and the as built condition were found: 1. The drawing shows all anchor bolts are 0. 75 inch but the bolts are all 0. 5" diameter.2. The drawing shows 16 anchor bolts but the as built condition shows 8 of them were not installed. (Note: One compartment cannot be accessed with a sign "Door to Remain Closed at all Times').3. Section A-A of Dwg. 9321-F-70553 is typical for both Rack 19 and 21. The two racks must have their own individual anchorage plan because the two configurations, including proximity to the edge of floor penetrations, are different. CR-IP3-2013-01346 was generated to resolve the above issues. (The CR incorrectly stated that 17 bolts were shown on the drawing)There is no operability concern because the existing SQUG evaluation of the rack bounds the discrepancies noted above. The as built configuration is structurally adequate when analyzed for seismic loads associated with a postulated SSE occurrence. The calculation for this rack needs to be revised.The drawing needs to be revised to show the actual as built configurations for the rack.6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions? YEJl NE ULI NIAE1 YjZNEI U[: Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures? YE N I U0- N/A[D]EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 3 of 6 Status: YE N-- UI-Seismic Walkdown Checklist (SWC) SWELl-080 Equipment ID No. RACK#21 Equip. Class 1 18 Equipment Description STEAM GENERATORS LEVEL TRANSMITTER

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, YE Nil UEII N/AE-]and masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage? YE Ni: Ur--] N/A[l 10. Based on the above seismic interaction evaluations, is equipment free Y[Z NEil Ui 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?

YEI NEIl UFl Comments (Additional pages may be added as necessary) There is a slight, minor surface corrosion on a tubing clip angle support in the first compartment from the left side.

References:

9321-F-70273 Containment Building Instrument Arrangement Sheet I Instrumentation 9321-F-70513 Transmitter Racks Piping Arrangement -Sheet No. 4 Instrument 9321-F-70553 Transmitter Racks Piping Arrangement -Sheet No. 5 Instrument 208247 Modification to Pressurizer Level Transmitter Cabinet Rack No. 19 Instrumentation Calculation C/S DA-83-0090-A, IP3 Containment Building Rack 21 -Structural Analysis SEWS for Rack 19 CR-IP3-2013-01346 AWC-50 EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 4 of 6 Status: Y[Z NI I U[--Seismic Walkdown Checklist (SWC) SWELl-080 Equipment ID No. RACK#21 Equip. Class 1 18 Equipment Description STEAM GENERATORS LEVEL TRANSMITTER Evaluated by: Dan Nuta Date: 3-9-2013 Kai Lo .3-9-2013 EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 5 of 6 Seismic Walkdown Checklist (SWC) SWELl-080 Equipment ID No. RACK#21 Equipment Description STEAM GENERATORS LEVEL TRANSMITTER Photographs Status: YZ NI-- UI-Equip. Class 1 18 Note: STEAM GENERATORS LEVEL TRANSMITTER RACK 21 Note: 1 st compartment from the left side* Mild surface corrosion on Hilti Bolt hex nut* Mild surface corrosion on tubing angle clip support EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 6 of 6 Status: YE NF U[-]Seismic Walkdown Checklist (SWC) SWELl-080 Equipment ID No. RACK#21 Equip. Class' 18 Equipment Description STEAM GENERATORS LEVEL TRANSMITTER Note: 2'n6 compartment from the left side EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 1 of 5 Status: Y[ NI- UD--Seismic Walkdown Checklist (SWC) SWELl-082 Equipment ID No. RACK#4A Equip. Class 1 18 Equipment Description SG #31 & #32 MAIN STM FLOW TRANSMITTER RACK Location: Bldg. VC Floor El. 68-0" Room, Area 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)? YE N[-]YES CHECK THE ANCHORAGE 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?Y[ NE] ul] N/AL]YE NEI UEIE] N/AD YE NEI Ui-] N/AR Enter the equipment class name from EPRI 1025286, Appendix B: Classes of Equipment.

EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 2 of 5 Status: YE NF-- U-il Seismic Walkdown Checklist (SWC) SWELl-082 Equipment ID No. RACK#4A Equip. Class' 18 Equipment Description SG #31 & #32 MAIN STM FLOW TRANSMITTER RACK 5. Is the anchorage configuration consistent with plant documentation? Y[E NEi ULI N/AE[(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 Y[ Nil U--1 potentially adverse seismic conditions?

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?YEE NEI uIl N/AEl YED NEI UI0 N/AEl YE NEI ul-i N/AL]Y[ NEI U-I EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 3 of 5 Status: Y[Z NRj U-Seismic Walkdown Checklist (SWC) SWELI-082 Equipment ID No. RACK#4A Equip. Class 1 18 Equipment Description SG #31 & #32 MAIN STM FLOW TRANSMITTER RACK Other Adverse Conditions
11. Have you looked for and found no other seismic conditions that could Y[E NEI U[-adversely affect the safety functions of the equipment?

The back of Rack 4A is adjacent to the handrail and the side is adjacent to Rack 27A. The handrail is bolted to Rack 27A at two places to increase its rigidity so it cannot move and impact Rack 4A and Rack 27A during a seismic event. Attaching the handrail to Rack 27A is acceptable because a less than 200 pounds potential horizontal live load and light inertial mass for the hadrail are not structurally significant when compared to the compacity of the frame and anchorage. Comments (Additional pages may be added as necessary)

References:

9321-H-72733, Separation of Main Steam Flow Transmitter Racks 4A from 27A & 4B from 27B 9321-F-70015, Main Steam Flow Transmitter Racks Piping Arrangement Instrumentation 9321-F-70283, Containment Building Instrument Arrangement Sheet No. 2 Instrumentation SEWS for Rack 4A AWC-56 Date: 3-4-2013 Evaluated by: Dan Nuta Kai Lo C.- ,' 3-4-2013 EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 4 of 5 Status: YZ NF- ur--Seismic Walkdown Checklist (SWC) SWELl-082 Equipment ID No. RACK#4A Equip. Class 1 18 Equipment Description SG #31 & #32 MAIN STM FLOW TRANSMITTER RACK Photographs Note: SG #31 & #32 MAIN STM FLOW TRANSMITTER RACK No. 4A Note: Rack 4A anchorage EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 5 of 5 Status: YOZ Nl UFi--Seismic Walkdown Checklist (SWC) SWELl-082 Equipment ID No. RACK#4A Equip. Class 1 18 Equipment Description SG #31 & #32 MAIN STM FLOW TRANSMITTER RACK Note: One side of adjacent Rack 27A is bolted to the post of the handrail.Note: The other side of Rack 27A is bolted to the post of the handrail.EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 1 of 4 Status: YE Nr-- UDI Seismic Walkdown Checklist (SWC) SWELl-083 Equipment ID No. RACK#4B Equip. Class' 18 Equipment Description SG #33 & #34 MAIN STM FLOW TRANSMITTER RACK Location: Bldg. VC Floor El. 68'-O" Room, Area 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)? YE NE]YES CHECK THE ANCHORAGE 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.)

YE NEI U-I N/AD-YE NDI UD- N/AD YZ NDI uD- N/AD-1 Y[] ND-I UD- N/AD Enter the equipment class name from EPRI 1025286, Appendix B: Classes of Equipment. EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 2 of 4 Status: YZ NF] UL-Seismic Walkdown Checklist (SWC) SWELl-083 Equipment ID No. RACK#4B Equip. Class 1 18 Equipment Description SG #33 & #34 MAIN STM FLOW TRANSMITTER RACK 6. Based on the above anchorage evaluations, is the anchorage free of YEZ ND U-I potentially adverse seismic conditions? Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures? YEA NDI UD N/AD Y4" (1.05" OD) vertical riser, Station Air pipe is supported at EL. 68' and 93' (near column 5). The vertical span is 25'. License Basis evaluation (LB-21) was generated to evaluate the condition. The stresses and displacements induced during a DBE are acceptable.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Y[ NDI UD- N/AD and masonry block walls not likely to collapse onto the equipment?
9. Do attached lines have adequate flexibility to avoid damage? YE ND UD-- N/AD:]10. Based on the above seismic interaction evaluations, is equipment free Y[ ND UD]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?

YE NEIUD EN-DC-168 REV 0 ATTACHMENT 9.6 Sheet 3 of 4 SEISMIC WALKDOWN CHECKLIST FORM Status: YZ NO U-I Seismic Walkdown Checklist (SWC) SWELl-083 Equipment ID No. RACK#4B Equip. Class 1 18 Equipment Description SG #33 & #34 MAIN STM FLOW TRANSMITTER RACK Comments (Additional pages may be added as necessary)

References:

9321-H-72733, Separation of Main Steam Flow Transmitter Racks 4A from 27A & 4B from 27B 9321-F-70015, Main Steam Flow Transmitter Racks Piping Arrangement Instrumentation 9321-F-70273, Containment Building Instrument Arrangement Sheet No. 1 Instrumentation SEWS for Rack 4B AWC-48 Evaluated by: Dan Nuta Date: 3-5-2013 Kai Lo Zc 3-5-2013 EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 4 of 4 Status: N[-] U-]Seismic Walkdown Checklist (SWC) SWELl-083 Equipment ID No. RACK#4B Equip. Class 1 18 Equipment Description SG #33 & #34 MAIN STM FLOW TRANSMITTER RACK Photographs Note: Rack 4B Note: Y3/4" (1.05" OD) Station Air riser EN-DC-168 REV 0 ATTACHMENT 9.6 Sheet I of 4 SEISMIC WALKDOWN CHECKLIST FORM Status: YM NI-- UI-Seismic Walkdown Checklist (SWC) SWELl-085 Equipment ID No. TE-122 Equip. Class 1 19 Equipment Description EXCESS LETDOWN TEMP ELEMENT Location: Bldg. VC Floor El. 46-0" Room, Area 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)? Y-- NE NOT PART OF ANCHOR CHECKS 2. Is the anchorage free of bent, broken, missing or loose hardware?TE-122 has piping that is well supported inside the VC sump barrier 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?YE NEI- U-- N/AE-YEA N[-] UiE N/A[-Z YI NE]l U[-] N/A--]There is no concrete involved.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.)

YE N[] U[l N/A[-This is not part of the 50% for which an anchorage configuration verification is required.Enter the equipment class name from EPRI 1025286, Appendix B: Classes of Equipment. EN-DC-168 REV 0 STAheet 2 of SEISMIC WALKDOWN CHECKLIST FORM Sheet 2 of 4 Status: YN NF UE-Seismic Walkdown Checklist (SWC) SWELl-085 Equipment ID No. TE-122 Equip. Class 1 19 Equipment Description EXCESS LETDOWN TEMP ELEMENT 6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions? YE NEIU[: 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?YEA NDI U-i N/AD1 YEE NDI UD1 N/A[-D YIE NDI UD- N/ADl YZ ND-] UD--Other Adverse Conditions
11. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment?

YE ND-1UD EN-DC-168 REV 0 ATTACHME Sheet 3 o ENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM If 4 Status: YE NF-] U[-]Seismic Walkdown Checklist (SWC) SWELl-085 Equipment ID No. TE-122 Equip. Class 1 19 Equipment Description EXCESS LETDOWN TEMP ELEMENT Comments (Additional pages may be added as necessary) Mild surface corrosion is found in the following locations:

1. TE-122 fitting.2. The bolts on the nearby valve 215 and a few others.3. The flanges where the bolts in item 2 are attached to.4. See AWC-54

References:

9321-F-70283, Containment Building Instrument Arrangement Sheet No. 2 Instrumentation 9321-F-25813, Containment Building Chemical & Volume Control System Sheet No. I AWC-54 Evaluated by: Dan Nuta Date: 3-13-2013 Kai Lo C. 4-7ý 3-13-2013 EN-DC-168 REV 0 ATTACHMENT 9.6 Sheet 4 of 4 Seismic Walkdown Checklist (SWC) SWELl-085 Equipment ID No. TE-122 Equipment Description EXCESS LETDOWN TEMP ELEMENT SEISMIC WALKDOWN CHECKLIST FORM Status: Nn U--Equip. Class 1 19 Photographs EN-DC-168 REV 0 ATTACHMENT 9.6 Sheet I of 5 SEISMIC WALKDOWN CHECKLIST FORM IP3 Status: YE ND UD1 R1 Equip. Class 1 20 Seismic Walkdown Checklist (SWC) SWELl-087 Equipment ID No. PL6 Equipment Description CHARGING PUMPS SPEED CONTROL PANEL Location: Bldg. PA Floor El. 55'-0" Room, Area 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 Y0 NZ of the 50% of SWEL items requiring such verification)? The anchorage configuration verification is not required.2. Is the anchorage free of bent, broken, missing or loose hardware?Direct anchorage is to a Unistrut frame. This anchorage is inside of the cabinet and the doors were opened pre-outage. The anchorage inside the panel and the anchorage of the support frame to the concrete are free of bent, broken or loose hardware.3. Is the anchorage free of corrosion that is more than mild surface oxidation? Direct anchorage is to a Unistrut frame. and the doors were opened pre- outage. On the side panel, one bolt has a recess of 1/16" below the nut (upper right side bolt) and is acceptable per an existing calculation IP3-CALC-MULTI-00734 .The anchorage of the frame to the concrete is free of corrosion that is more than mild surface oxidation.

4. Is the anchorage free of visible cracks in the concrete near the anchors?YE NEI UD N/AD R1 YO N UD N/AWD YE NDJ UD N/AD The anchorage of the frame to the concrete is free of visible cracks in the concrete near the anchors.Enter the equipment class name from EPRI 1025286, Appendix B: Classes of Equipment.

EN-DC-168 REV 0 ATTACHMEIN Sheet 2 of IT 9.6 5 SEISMIC WALKDOWN CHECKLIST FORM IP3 Status: YZ NEI U R1 Seismic Walkdown Checklist (SWC) SWELl-087 Equipment ID No. PL6 Equip. Class 1 20 Equipment Description CHARGING PUMPS SPEED CONTROL PANEL 5. Is the anchorage configuration consistent with plant documentation? YO ND UD N/AD (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.) Not applicable since component is not part of the anchorage configuration verification.

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

Direct anchorage is to a Unistrut frame. The doors of the panel were opened. The anchorage inside the panel and the anchorage of the frame to the concrete are free of potentially adverse seismic conditions. Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures? YE NDI UD N/AD Fluorescent bulbs above the panel need to be restrained. This is not considered to be an impact condition for this panel.CR-IP3-2012-03481 has been written to address this condition.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, YE NDI UD N/AD and masonry block walls not likely to collapse onto the equipment?

Masonry block wall near the panel needs to be evaluated. Calculation 6604.210-1-CB-001-F, G, H has evaluated the wall and found it to be seismically qualified.

9. Do attached lines have adequate flexibility to avoid damage? Y[ ND UD N/ADl Yes, attached lines have adequate flexibility to avoid damage.10. Based on the above seismic interaction evaluations, is equipment free YE ND uD-of potentially adverse seismic interaction effects?Block wall was evaluated per the IEB 80-11 bulletin as noted in #8 above.R1 EN-DC-168 REV 0 ATTACHMENT 9.6 Si Sheet 3 of 5 Seismic Walkdown Checklist (SWC) SWELl-087 I Equipment ID No. PL6 Equipment Description CHARGING PUMPS SPEED CONTROL PANEL Other Adverse Conditions
11. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment?

Yes, we have looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment. EISMIC WALKDOWN CHECKLIST FORM IP3 Status: YIZ NI U-I R1 Equip. Class 1 20 YZ NO UE1 Comments (Additional pages may be added as necessary) There was a floor coating crack but is not an adverse condition.

References:

9321-F-70403-17 Prmary Auxiliary Building Instrument Arrangement Sh No. 1, Instrumentation and Restraint and Support Design AWC-029 R1 Evaluated by: Dan Nuta ') J Date: 2/19/2013 Kai Lo Date: 2/19/2013 EN-DC-168 REV 0 ATTACHMENT 9.6 Sheet 4 of 5 Seismic Walkdown Checklist (SWC) SWELI -087 Equipment ID No. PL6 Equipment Description CHARGING PUMPS SPEED CONTROL PANEL SEISMIC WALKDOWN CHECKLIST FORM IP3 Status: YEZ NF- U-- R1 Equip. Class 1 20 Photographs Note: Equipment Tag EN-DC-168 REV 0 ATTACHMENT 9.6 Sheet 5 of 5 Seismic Walkdown Checklist (SWC) SWELl-087 Equipment ID No. PL6 Equipment Description CHARGING PUMPS SPEED CONTROL PANEL SEISMIC WALKDOWN CHECKLIST FORM IP3 Status: YZ NEI Ur- R1 Equip. Class 1 20 Note: EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet I of 10 Status: YZ ND U-I Seismic Walkdown Checklist (SWC) SWELI-101 Equipment ID No. ACCUM 31 Equip. Class 1 21 Equipment Description 31 SIS ACCUMULATOR Location: Bldg. VC Floor El. 46'-0" Room, Area 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)? NOT PART OF ANCHOR CHECKS Y[-] NE 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? A few of the anchor bolts for the Accumulator have mild surface corrosion. (See photo)4. Is theanchorage free of visible cracks in the concrete near the anchors?YIO NiD1 ULI N/AD-]YIE NDl U[-- N/AD-YEZ NEI U-I N/AD-Enter the equipment class name from EPRI 1025286, Appendix B: Classes of Equipment. EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 2 of 10 Status: YM NII UI-Seismic Walkdown Checklist (SWC) SWELl-101 Equipment ID No. ACCUM 31 Equip. Class' 21 Equipment Description 31 SIS ACCUMULATOR

5. Is the anchorage configuration consistent with plant documentation?

YE NEI UI- N/Al](Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.) Not one of the 50% for which an anchorage configuration verification is required.6. Based on the above anchorage evaluations, is the anchorage free of YE NEI U[-potentially adverse seismic conditions? 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?

A comer fitting for strut (similiar to Unistrut chanel type) located approximately 12 feet above the floor and adjacent to the Accumulator, has the following of deficiencies: (1) The fitting is a 90 degrees fitting that was cut to accommodate the bending of the strut at the two ends because the struts come together at an angle greater than 90 degrees.(2) The fitting has pronounced surface corrosion on the outside. (Photo shows no observable corrosion on the inside surface of the strut.)(3) The strut also has pronounced surface corrosion on the outside.(4) The strut is in contact with the Accumulator. CR-IP3-2013-01530 was generated for condition I and 2 above.There is no observable structural function for the struts and they were probably abandoned in place. License BasisEevaluation LB-23 was performed for the fitting and found it to be structurally adequate for a design basis seismic event.The strut is very light, the kinetic energy impact from the strut onto the Accumulator's surface will be insignificant to cause any adverse effect.Y[I NE-] U-] N/Al]YE NEI] u[l N/A[]EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 3 of 10 Status: YE ND-- UD--Seismic Walkdown Checklist (SWC) SWELl-101 Equipment ID No. ACCUM31 Equip. Class 1 21 Equipment Description 31 SIS ACCUMULATOR

9. Do attached lines have adequate flexibility to avoid damage? YE NO UrI N/AD-]10. Based on the above seismic interaction evaluations, is equipment free YZ ND U--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?

YEZ NO URi EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 4 of 10 Status: YE NEi Ur-I Seismic Walkdown Checklist (SWC) SWELl-101 Equipment ID No. ACCUM 31 Equip. Class 1 21 Equipment Description 31 SIS ACCUMULATOR Comments (Additional pages may be added as necessary)

1. Mild surface corrosion on adjacent valve's nuts and bolts. (See photo)2. Mild surface corrosion on nearby support's nuts and bolts.. (See photo)3. Mild surface corrosion observed on the angle iron support, valve body, bonnet, nuts and bolts.. (See photo)4. Mild surface corrosion observed on the tube track support.. (See photo)5. Mild surface corrosion observed on the tube track, tubing clamp, and U-bolt.. (See photo)6. Boric acid residue found on valve.. (See photo)

References:

9321-F-20188, Additional Level Transmitter for Accumulator Tank 9321-F-70273, Containment Building Instrument Arrangement Sheet No. 1 Instrumentation CR-IP3-2013-01530 AWC-52 Evaluated by: Dan Nuta Date: 3-11-2013 KaiLo /C. -4 3-11-2013 EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 5 of 10 Status: YZ NF U-Seismic Walkdown Checklist (SWC) SWELl-101 Equipment ID No. ACCUM 31 Equip. Class 1 21 Equipment Description 31 SIS ACCUMULATOR Photographs Note: 31 SIS ACCUMULATOR Note: Mild surface corrosion on the anchor bolts.EN-DC-168 REV 0 ATAHMENT 9.6 1 SEISMIC WALKIDOWN CHECKLIST FORM Sheet 6 of 10 Seismic Walkdown Checklist (SWC) SWELl-101 Equipment ID No. ACCUM 31 Equipment Description 31 SIS ACCUMULATOR Status: YE] N-I UFL Equip. Class 1 21 Note: Mild surface corrosion on the anchor bolt (near outer wall)Note: Mild surface corrosion on the supports' hex nuts and bolts.EN-DC-168 REV 0 ATAHMENT 9.6 1 SEISMIC WALKDOWN CHECKLIST FORM Sheet 7 of 10 Note: Mild surface corrosion on the valve's nuts and bolts.Note: Mild surface corrosion on the valve's nuts and bolts.EN-DC-168 REV 0 ATAHMENT 8 o.1 SEISMIC WALKDOWN CHECKLIST FORM Sheet 8 of 10 Note: Mild surface corrosion observed on the angle iron support, valve body, bonnet, nuts and bolts Note: Mild surface corrosion observed on the tube track support.EN-DC-168 REV 0 ATAHMENT 9.6 1 SEISMIC WALKDOWN CHECKLIST FORM Sheet 9 of 10 Note: Mild surface corrosion observed on the tube track, tubing clamp, and U-bolt.Note: Pronounced corrosion on an abandoned strut and strut comer fitting.EN-DC-168 REV 0 ATTACHMENT 9.6 Sheet 10 of 10 SEISMIC WALKDOWN CHECKLIST FORM Note: Abandoned strut is in contact with Accumulator. Note: EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet I of 5 Status: YN NE-- Ui-1 Seismic Walkdown Checklist (SWC) SWELl-102 Equipment ID No. ACCUM 32 Equip. Class 1 21 Equipment Description 32 SIS ACCUMULATOR Location: Bldg. VC Floor El. 46*-0" Room, Area 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)? YD NEI NOT PART OF ANCHOR CHECKS 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?YE NDI ULD N/AD YZ ND U[-1 N/AD YE; NDI UD N/AD Enter the eqUipment class name 'ronm EPRI 1025280, Appendix B: Classes o" EqUipmenlt.

EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 2 of 5 Status: YE NLI- u--Seismic Walkdown Checklist (SWC) SWELl-102 Equipment ID No. ACCUM 32 Equip. Class 1 21 Equipment Description 32 SIS ACCUMULATOR

5. Is the anchorage configuration consistent with plant documentation?

YO-- NOl Ui- N/AZ (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.) The item is not one of the 50% for which anchorage configuration verification is required.6. Based on the above anchorage evaluations, is the anchorage free of YE- NOl UD-potentially adverse seismic conditions? 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?YE NEI U[- N/AD YEZ ND U-i N/AD YE NDI UD N/AD:-YEZ NDI uD EN-DC-168 REV 0 ATTACHMENT 9.6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 3 of 5 Status: YE NFI UDýSeismic Walkdown Checklist (SWC) SWELl-102 Equipment ID No. ACCUM 32 Equip. Class 1 21 Equipment Description 32 SIS ACCUMULATOR Other Adverse Conditions
11. Have you looked for and found no other seismic conditions that could YE] N[D U-]adversely affect the safety functions of the equipment?

Comments (Additional pages may be added as necessary) See area walk-by AWC-53 for localized corrosion of various tubing and pipe supports.

References:

9321-F-20188, Additional Level Transmitter for Accumulator Tank 9321-F-70273, Containment Building Instrument Arrangement Sheet No. 1 Instrumentation AWC-53:~ ~v* 'A ~Evaluated by: Dan Nuta Date: 3-11-2013 Kai Lo /' < 3-11-2013 EN-DC-168 REV 0 ATTACHMENT 9.6 Sheet 4 of 5 SEISMIC WALKDOWN CHECKLIST FORM Status: Y[ NF-] URI]Equip. Class 1 21 Seismic Walkdown Checklist (SWC) SWELl-102 Equipment ID No. ACCUM 32 Equipment Description 32 SIS ACCUMULATOR Photographs Note: 32 SIS ACCUMULATOR Note: Localized mild surface corrosion, see AWC-53.EN-DC-168 REV 0 ATAHMENT 59of6 SEISMIC WALKDOWN CHECKLIST FORM Sheet 5 of 5 Seismic Walkdown Checklist (SWC) SWELl-102 Equipment ID No. ACCUM 32 Equipment Description 32 S/S ACCUMULATOR Status: YE] NF-] UD-1 Equip. Class 1 21 Note: Mild surface corrosion at two nuts on the base plate.Note: Mild surface corrosion at ceiling building steel.EN-DC-168 REV 0 ATTACHMENT K -AREA WALK-BY CHECKLISTS (AWCs) ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 1 of 6 Status: Y- NEI UD Area Walk-By Checklist (AWC) AWC-044 Location: Bldg. CB Floor El. 15-0 Room, Area 1 SWGR Room SWEL Components: SWELl -014, SWELl-015 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)?

2. Does anchorage of equipment in the area appear to be free of significant 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)?YEZ ND UD N/AD-YE ND UD- N/AD-]YE ND UE] N/AD I 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.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 2 of 6 Status: YZ] NEI ui-Area Walk-By Checklist (AWC) AWC-044 Location: Bldg. CB Floor El. 15-0 Room, Area 1 SWGR Room SWEL Components: SWELl-014, SWELl-015 4. Does it appear that the area is free of potentially adverse seismic Y[ NEIl U[I N/AliI spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)? The unrestrained fluorescent lighting tube was addressed by a previous CR for CB EL. 15' and the condition was generically accepted.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)? YE NDI U[- N/AD-Y[Z NDI UD] N/AD-Y[D NDI UD] N/AD See item 1, 6 and 8 in comments section.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 3 of 6 Status: YE ND I U-Area Walk-By Checklist (AWC) AWC-044 Location: Bldg. CB Floor El. 15'-0 Room, Area 1 SWGR Room SWEL Components: SWELl-014, SWELl-015 8. Have you looked for and found no other seismic conditions that could YE NEil U-1 adversely affect the safety functions of the equipment in the area?Comments (Additional pages may be added as necessary) The following conditions, which are not structurally significant and do not represent an operability concern, were observed: 1. A test instrument support built from steel wire is located right next to the Battery Charger 33. It is only 3 feet away from Switchgear 31 Bus 2A. The test instrument is estimated to weight around 20+ pounds and is less than 1 foot from the floor while the switchgear is much more massive, -2000 ponds. In a seismic event the instrument may slide along the floor and impact the base of the switchgear, but the energy imparted to the base will be insignificant.

2. On Panel XL9, 4 out of the 14 screws are missing on the panel cover. The remaining 10 screws are structurally adequate because the seismic acceleration is low and the panel weight is minimal.Therefore, there is no adverse seismic interaction.

Nevertheless, the missing screws should be re-installed.

3. On Strip Heater Panel 31, 1 out of 4 screws is missing on the side panel. The remaining screws are structurally adequate because the seismic acceleration is low and the panel weight is minimal. As such, there will be no adverse seismic interactions.

Nevertheless, the missing screw should be re-installed.

4. On Panel XV2, the front panel is missing 3 out of 14 screws. The remaining 11 screw are structurally adequate because the seismic acceleration is low and the panel weight is minimal. Therefore, there is no adverse seismic interaction.

Nevertheless, the missing screws should be re-installed.

5. The cabinet adjacent to EBR-16CB & EBR-17CB has I stripped screw and 2 missing screws out of a total of 20 screws. The remaining 17 screw are structurally adequate because the seismic acceleration is low and the panel weight is minimal. Therefore, there is no adverse seismic interaction.

Nevertheless, the missing and stripped screws should be re-installed and replaced.6. Scaffold used the Switchgear's base as a support point. Since both the base of the scaffold and the Switchgear are rigid, there is no adverse seismic interaction. Since the mass of the scaffold is light relative to the mass of the Switchgear, and the seismic acceleration is low, the additional seismic force imposed by the scaffold onto the Switchgear's base anchorage is judged to be acceptable.

7. There is a 20 feet long crack in the coating on the ceiling along the N-S direction (adjacent to the transformer section of Bus 2A). The crack is acceptable since it is at the concrete cover and the slab is reinforced with rebar that can take the tensile stress. There is also another short 4' long crack running E-W, on the ceiling near an opening. This crack is also acceptable based on similar reasoning.

These two cracks will be monitored in the future by the Maintenance Rule Structural Monitoring Program.8. An oil rag was observed on the floor under the 32 IA compressor. This is a housekeeping issue.The above conditions are captured in CR-IP3-2013-00761 and WR-299849. EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 4 of 6 Status: YE NEI U--Area Walk-By Checklist (AWC) AWC-044 Location: Bldg. CB Floor El. 15-0 Room, Area 1 SWGR Room SWEL Components: SWELl-014, SWELl-015 Evaluated by: Dan Nuta 2/21/13 Kai Lo 2/21/13 EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 5 of 6 Status: YE NF1 ULI Area Walk-By Checklist (AWC) AWC-044 Location: Bldg. CB Floor El. 15-0 Room, Area 1 SWGR Room SWEL Components: Photographs SWELl-014. SWELl-015 EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 6 of 6 Status: YE NOi- UF--Area Walk-By Checklist (AWC) AWC-044 Location: Bldg. CB Floor El. 15-0 Room, Area 1 SWGR Room SWEL Components: SWELl-014. SWELl-015 Nore: EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 1 of 5 Status: YE NDI UI Area Walk-By Checklist (AWC) AWC-045 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl-049 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)?

2. Does anchorage of equipment in the area appear to be free of significant 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)?YE] ND UD N/ADl YE ND UD1 N/ADl YE] NDI uD N/AD--One conduit located above has two C clamp supports.

The clamp has a saddle at the bottom of the conduit and a bolt that tightens the saddle against the conduit. This is an acceptable conduit support.If the room in which the SWEL item is located is v'erY 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.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 2 of 5 Status: YO- NEI UIJ-Area Walk-By Checklist (AWC) AWC-045 Location: Bldg. VC Floor El. 68'-0 Room, Area' N/A SWEL Components: SWELl-049 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)?

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)?

Parts and tools were lying around the area because of the outage maintenance work around the area. The condition is temporary because there is a containment cleanliness walkdown for GSI 191 (sump clogging). YEZ NEI- U-I N/A--YE NDI UD' N/AD1 Y[Z NDI UD- N/AD YE] ND-] UD1 N/AD EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 3 of 5 Status: YE1 NEI UD]Area Walk-By Checklist (AWC) AWC-045 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl-049 8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?YED NDj ULI Comments (Additional pages may be added as necessary) Two lights were out with no bulb.NC Evaluated by: Dan Nuta (. Date: 3/4/2013 Kai Lo /Q* (. 3/4/2013 EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-By CHECKLIST Sheet 4 of 5 Status: YM N-- ULI Area Walk-By Checklist (AWC) AWC-045 Location Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl -049 Photographs Note: 1. Mild surface corrosion on the 12" circular duct surface and duct flange joint.2. Mild surface corrosion on the rectangular duct flange joint.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-By CHECKLIST ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 5 of 5 Area Walk-By Checklist (AWC) AWC-045 Status, YE ND UFI Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELI -049 Note: Mild surface corrosion on the 60" circular duct flange Note: EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet I of 5 Status: YE] NDI UI Area Walk-By Checklist (AWC) AWC-046 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl-051 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)?

2. Does anchorage of equipment in the area appear to be free of significant 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)?YE NDI UiD N/ADl YE ND] U-- N/ADNDI Uil N/AD1' If the room in which the SWEL item is located is ver, 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.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 2 of 5 Status: Y-Z NEI U--Area Walk-By Checklist (AWC) AWC-046 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl -051 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)?

5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?1. The C. S. nuts on the 3" SW pipe flange have pronounced surface corrosion.

CR-IP3-2013-02092 was written by a NPO from OPS to identify this issue. (See photo)2. Fire protection tank's sheet metal enclosure base has mild surface corrosion and slight bucking. (See photo)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)? Scaffold planks are found in the space between the crane wall and the metal enclosure. These planks will be chain link tied before Outage 3R1 7 reaches Mode 4.Y[I NEI UD- N/AD1 YEz NDI UD- N/AD-YEZ NDI UD- N/AD-YOZ NDI UD] N/AD-EN-DC-168 REV 0 ATTACHMENT 9.7 Sheet 3 of 5 Area Walk-By Checklist (AWC) AWC-046 Location: Bldg. VC Floor El. 68'-0 Room, Area' N/A SWEL Components: SWELl-051 8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?AREA WALK-BY CHECKLIST Status: YE NEI U-]YZl NEFl uFZ Comments (Additional pages may be added as necessary) Round circular duct flange joint has mild surface corrosion. (See photo)Evaluated by: Dan Nuta Y Date: 3/12/2013 KaiLo I. j. 3/12/2013 EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST ATTACHMENT 9.7 AREA WALK-By CHECKLIST Sheet 4 of 5 Area Walk-By Checklist (AWC) AWC-046 Location' Bldg VC Floor El. 68'-0 Room, Area' N/A SWEL Components: SWELl-051 Photographs Status YEI NEI- UE NuLe;CS Nuts on 3" SW pipe flange have pronounced surface corrosion. r4o0e: Fire protection tank sheet metal enclosure's base has mild surface corrosion and slight bucking.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-By CHECKLIST ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 5 of 5 Area Walk-By Checklist (AWC) AWC-046 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A Status: Y[ NE[1 UE]SWEL Components: SWELl -051 Note: EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 1 of 4 Status: YE NEI ULII Area Walk-By Checklist (AWC) AWC-047 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl -052 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)?

2. Does anchorage of equipment in the area appear to be free of significant 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)?YE] ND [i-- N/ALj YE NDI UL N/ALJ Y[Z ND UEl N/ADJ'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 on1 judgment, e.g., on the order of about 35 feet from the SWEL item.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 2 of 4 Status: Y[Z NFI U--Area Walk-By Checklist (AWC) AWC-047 Location: Bldg. VC Floor El. 68'-0 Room, Area' N/A SWEL Components: SWELl-052 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)?

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)?

YO NEI UD N/AD1 YZ NDI UDl N/AD YE] NDI UD1 N/AD-I Y- ND] ul- N/AD1 EN-DC-168 REV 0 ATTACHMENT 9.7 Sheet 3 of 4 Area Walk-By Checklist (AWC) AWC-047 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl-052 8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?AREA WALK-BY CHECKLIST Status: YE NEI U[-]YEz NEI uF_Comments (Additional pages may be added as necessary) Except for the door to the Hepa filter, the door of the other FCU compartments cannot be opened with the keys provided.1. Boric acid deposit on the floor between fan inlet enclosure and motor frame. (See photo)2. Circular duct flange joint has mild surface corrosion.

3. Cracked coating on concrete floor near column 8.4. Peeled coating area of approximately 2x4' on the concrete wall.Evaluated by: Dan Nuta Date: 3/12/2012 Kai Lo /C- ( " 3/12/2012 EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-By CHECKLIST ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 4 of 4 Status: YE NEIl U-il Area Walk-By Checklist (AWC) AWC-047 Location:

Bldg. VC Floor El. 68'-0 Room, Area' N/A SWEL Components: SWELl-052 Photographs Note: Note: Boric acid deposit on the floor between fan inlet enclosure and motor frame..Coating (estimated to be 2'x4') on concrete wall.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 1 of 4 Status: YE NEI Ui--Area Walk-By Checklist (AWC) AWC-048 Location: Bldg. VC Floor El. 68-0 Room, Area 1 N/A SWEL Components: SWELl -083, SWELl-053 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)?

2. Does anchorage of equipment in the area appear to be free of significant degraded conditions?" Mild surface corrosion was found on the rectangular duct flange joint. (See photo)* Mild surface corrosion was found on the circular duct flange joint. (See photo)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)?YE NDI ULi N/AD:]YI- NDI uD- N/AD-YO NDI uD-- N/AD I 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.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 2 of 4 Status: YN NEI Ur-Area Walk-By Checklist (AWC) AWC-048 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl-083, SWELl-053 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)? Y4" 91.05" OD) vertical riser, Station Air pipe is supported at EL. 68'and 93' (near column 5). The vertical span is 25'. License Basis evaluation (LB-21) was generated to evaluate the condition. The stress and displacement induced during a DBE are acceptable.

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)?
1. Scaffold poles and planks were found in the space between the crane wall and enclosure.

These scaffold materials will normally be tied down before going into 3R1 7 Outage Mode 4.Y-Z NEI UE1 N/AD YE NDI UD- N/AD YEI NDI UD1 N/AD-YE NDI U[-] N/ADl EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 3 of 4 Status: YE NEI Ur-Area Walk-By Checklist (AWC) AWC-048 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl-083, SWELl-053 8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?YEz NEI UD Comments (Additional pages may be added as necessary) Evaluated by: Dan Nuta Date: 3-9-20_13 Kai Lo /C. 3-9-2013 EN-DC-168 REV 0 ATTACHM ENT 9.7 AREA WALK-By CHECKLIST Sheet 4 of 4 Status: YE Ni-- UFi--Area Walk-By Checklist (AWC) AWC-048 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl-083, SWELl-053 Photographs Mild surface corrosion at the rectangular duct flange joint.Minor surface corrosion was found at the duct flange joint at the following locations:

  • 30" circular duct above the FCU* 60" circular duct above the FCU EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 1 of 4 Status: YE] N-- UL Area Walk-By Checklist (AWC) AWC-049 Location:

Bldg. VC Floor El. 68'-0 Room, Area' N/A SWEL Components: SWELl -053 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)?

2. Does anchorage of equipment in the area appear to be free of significant 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)?YLZ NEI U-l N/AD-Y- NEI UDl N/A[D YE-- ND] UD- N/AD1 , 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.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 2 of 4 Status: YEZ NDI UI Area Walk-By Checklist (AWC) AWC-049 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl -053 4. Does it appear that the area is free of potentially adverse seismic YE] N[il ULI N/AD spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)? 3/4" (1.05" OD) riser, Station Air piping has support at EL. 68' and 93'.A vertical pipe span of 25' was evaluated for seismic structural adequacy, see License Basis Evaluation LB-21. The existing condition is acceptable. Note: The mass of the piping is very small while the motor and FCU enclosure is very rigid.5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?The Y4" pipe has air inside. There is no water spraying concern.YE NDI UD- N/A--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)? Parts and tools were lying around the area because of the outage maintenance work around the area. The condition is temporary because there is a containment cleanliness walk down for GSI-191 (sump clogging) that will address the condition. YE NDI UD1 N/AD-YE NDI UD-1 N/AD-EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 3 of 4 Status: YOZ NEIl UI-Area Walk-By Checklist (AWC) AWC-049 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl-053 8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?YE NEI uF1 Comments (Additional pages may be added as necessary) Evaluated by: Dan Nuta Date: 3/5/2013 Kai LO _ _ _ _ _ _.__"_3/5/2013 EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 4 of 4 Status: Y[1 NEI- U]Area Walk-By Checklist (AWC) AWC-049 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: Photographs SWELl-053 Note: 3/4" (1.05" OD) riser, Station Air piping has support at EL. 68'and 93'.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 1 of 4 Status: YE] NEI uD-Area Walk-By Checklist (AWC) AWC-050 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl-080 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)?

2. Does anchorage of equipment in the area appear to be free of significant 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)?YE] ND] UD] N/AD-Y[E ND] UL-- N/AD I YE NDI UD- N/A--I If the room in which the S\¥EL 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.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 2 of 4 Status: YE NO Uli Area Walk-By Checklist (AWC) AWC-050 Location: Bldg. VC Floor El. 68'-0 Roorn, Area' N/A SWEL Components: SWELl-080 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)?

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)?

YE N- UL' N/AD Y[J NDI UD N/AD YE NDI uDI N/AD YE NDI U- N/AD EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 3 of 4 Status: YE ND-1 U--Area Walk-By Checklist (AWC) AWC-050 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl-080 8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?YE]J N[:] uFI Comments (Additional pages may be added as necessary) Evaluated by: Dan Nuta ' Date: 3-9-2013 KaiLo .3-9-2013 EN-DC-168 REV 0 ATTAC HM ENT 9.7 AREA WALK-By CHECKLIST ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 4 of 4 Status: YE NEI- U[-i Area Walk-By Checklist (AWC) AWC-050 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl-080 Photographs INote: Rack 21 EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 1 of 4 Status: YE] ND I UD Area Walk-By Checklist (AWC) AWC-051 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl-79, SWELl-10 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)?

2. Does anchorage of equipment in the area appear to be free of significant 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)?YE] ND uOi N/AD I YE NDI UD N/A[:]YE NO UDI N/AD-I If the room in which the S\VEL item is located is ver, 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.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 2 of 4 Status: YN NEI UEZ Area Walk-By Checklist (AWC) AWC-051 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl -79, SWELl -10 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)? Observed a vertical unistrut projecting above MCC 38 that is touching a horizontal 2 1/2" diameter stainless steel pipe carrying demineralized water to the Fire Hose station located east of Rack 19. CR-IP3-2013-01635 was generated. There is a 4" gap between the top of the MCC and the concrete wall.Licensing Basis evaluation LB-24 was generated to evaluate the Y4" gap and found it to be adequate.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)? Y,] NEI U-- N/A--YZ NDI uD- N/AD-YE NDI UD1 N/AD-YE NDI UD1 N/AD-EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 3 of 4 Status: YOZ NFI UF-Area Walk-By Checklist (AWC) AWC-051 Location: Bldg. VC Floor El. 68'-0 Room, Area' N/A SWEL Components: SWELl-79, SWELl-10 8. Have you looked for and found no other seismic conditions that could Y[ NEI U[I adversely affect the safety functions of the equipment in the area?Comments (Additional pages may be added as necessary) The side panel of Rack 16 located near the outer containment wall has duct tape on one side of the panel because 5 out of the 10 screws are missing. CR-IP3-2013-01634 was generated. The door locks for the control valves on Rack 16 were not locked. FSS was informed about this observation.

Reference:

CR-IP3-2013-01634 CR-IP3-2013-01635 Evaluated by: Dan Nuta Date: 3/15/2013 Kai Lo iC ." 3/15/2013 EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 4 of 4 Status: YE N-I UDI Area Walk-By Checklist (AWC) AWC-051 Location: Bldg. VC Floor El. 68'-0 Room, Area' N/A SWEL Components: SWEL1-79. SWELl-10 Photographs Note: Rack 19 EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 1 of 5 Status: YEZ NDI uD-Area Walk-By Checklist (AWC) AWC-052 Location: Bldg. VC Floor El. 46'-0 Room, Area' N/A SWEL Components: SWELl-101 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 YE NDJ U-- N/A[: potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

1. Mild surface corrosion observed on the angle iron support, valve body, bonnet, nuts and bolts.. (See photo)2. Mild surface corrosion observed on the tube track support..(See photo)2. Does anchorage of equipment in the area appear to be free of significant 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)?YEI ND] UDJ N/ADl Y[E ND] UD-- N/AD I Pronounced corrosion on an abandoned strut and strut comer fitting.CR-IP3-2013-01530 was generated.

If the room in which the S\VEL 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.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 2 of 5 Status: Y[ NEI U--Area Walk-By Checklist (AWC) AWC-052 Location: Bldg. VC Floor El. 46-0 Room, Area 1 N/A SWEL Components: SWELl-101 4. Does it appear that the area is free of potentially adverse seismic YE- NEI- U-I N/AEI spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)? The strut identified in question 3 is in contact with the Accumulator. The strut is very light, the kinetic energy impact from the strut onto the Accumulator's surface will be insignificant to cause any adverse effect.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)? YE NEIl U[- N/AD-YNl NDi UD1 N/AD-]YZ NDI UiD N/AD1 EN-DC-168 REV 0 ATTAC HM ENT 9.7 Sheet 3 of 5 Area Walk-By Checklist (AWC) AWC-052 Location: Bldg. VC Floor El. 46'-0 Room, Area 1 N/A SWEL Components: SWELl-101 8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?AREA WALK-BY CHECKLIST Status: Y[ NEI UL-YE N-il u--Comments (Additional pages may be added as necessary)

1. Mild surface corrosion on an adjacent valve's nuts and bolt.2. Mild surface corrosion on a nearby support's nuts and bolts.3. Mild surface corrosion observed on the tube track, tubing clamp, and U-bolt.Evaluated by: Dan Nuta (.t.Date:

3-11-2013 Kai Lo 3-11-2013 EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 4 of 5 Status: YZ NEI Ui--Area Walk-By Checklist (AWC) AWC-052 Location: Bldg. VC Floor El. 46'-0 Room, Area' N/A SWEL Components: Photographs SWELI-101 Note: Mild surface corrosion observed on the angle iron support, valve body, bonnet, nuts and bolts EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 5 of 5 Status: YZ NEI U--Area Walk-By Checklist (AWC) AWC-052 Location: Bldg. VC Floor El. 46-0 Room, Area 1 N/A SWEL Components: SWELl -101 Note: Mild surface corrosion observed on the tube track support.Note: Pronounced corrosion on an abandoned strut and strut corner fitting.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 1 of 7 Status: ND 1 UD-Area Walk-By Checklist (AWC) AWC-053 Location: Bldg. VC Floor El. 46-0 Room, Area' N/A SWEL Components: SWELl -102 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)? Mild surface corrosion wad found at the following locations: " On the weld and the base plate of a pipe support." On the two anchor bolts of a pipe support, including the bolts, nuts and the base plate area surrounding the bolts." On a pipe support and the embedded plate.2. Does anchorage of equipment in the area appear to be free of significant 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)?Mild surface corrosion was found at the following locations:
  • On a pipe and its angle steel sup[port.* On a tube track support.* On a tube track." On the tube track bracket support and its weld." On a second tube track." On the bottom flange of the structural steel on EL. 68'.YEI NDI UD] N/A[-YrZ- NDI UD- N/AD-Y[ NDI uD- N/AD-I 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.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 2 of 7 Status: YE NiD U[]Area Walk-By Checklist (AWC) AWC-053 Location: Bldg. VC Floor El. 46'-0 Room, Area 1 N/A SWEL Components: SWELl-102 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)?

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)?

Y[Z NEI UI- N/AD-YO NDI uD1 N/AD-YE NDI UD1 N/AD-Y[E NDI UD- N/AD1 EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 3 of 7 Status: YE] NEI UL-]Area Walk-By Checklist (AWC) AWC-053 Location: Bldg. VC Floor El. 46?-0 Room, Area' N/A SWEL Components: SWELl-102 8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?YO NEIUD_Comments (Additional pages may be added as necessary) Mild surface corrosion was observed on the valve's bonnet.Rust stain was observed on the concrete wall.Evaluated ~ ~ ~ ~ 1ýI jy Da ua ,.k .:, Evaluated by: Dan Nuta _Date: 3-11-2013 Kai Lo '- 3-11-2013 EN-DC-168 REV 0 ATTAC HM ENT 9.7 AREA WALK-By CHECKLIST ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 4 of 7 Status YWI ND UEI Area Walk-By Checklist (AWC) AWC-053 Location: Bldg. VC Floor El. 46'-0 Room, Area 1 N/A SWEL Components: SWELl -102 Photographs V Note: Mild surface corrosion on the weld and the base plate of a pipe support.Note: 1.Mild surface corrosion on two anchor bolts.nuts and the area surrounding those 2 bolts.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-By CHECKLIST ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 5 of 7 Area Walk-By Checklist (AWC) AWC-053 Location: Bldg. VC Floor El. 46'-0 Room, Area 1 N/A SWEL Components: SWELl-102 Status: YWI NFD UD Note: Note: Mild surface corrosion was found on the following Mild surface corrosion on pipe support and the locations. embedded plate.

  • On a pipe and its angle steel sup[port.* On a tube track support.* On a tube track.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST ATTAC HM ENT 9.7 AREA WALK-By CHECKLIST Sheet 6 of 7 Note: Mild surface corrosion was found on the following locations: " On the tube track bracket support and its weld.* On the tube track.Note: On the bottom flange of the structural steel on EL 68'.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST ATTACHMENT 9.7 AREA WALK-By CHECKLIST Sheet 7 of 7 Note: Mild surface corrosion on the valve's bonnet.Note: Rust stain on the concrete wall.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 1 of 5 Status: YN ND UD-Area Walk-By Checklist (AWC) AWC-054 Location:

Bldg. VC Floor El. 46'-0 Room, Area 1 N/A SWEL Components: SWELl-085 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)?

2. Does anchorage of equipment in the area appear to be free of significant 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)?1. Tube track support angle steel has mild surface corrosion. (See photo)YEZ ND UD N/AD Y-I NEI UD N/AD YE NEI UL N/AD 2. Duct louvers above have mild surface corrosion. (See photo)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., oil the order of about 35 feet from the SWEL item.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 2 of 5 Status: Y[ NFD UD--Area Walk-By Checklist (AWC) AWC-054 Location: Bldg. VC Floor El. 46'-0 Room, Area 1 N/A SWEL Components: SWELl-085 4. Does it appear that the area is free of potentially adverse seismic YEZ Nji UEL- N/AD1 spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)? The VC sump barrier was built around the TE-122 piping with < 1/8" gap between the pipe and expanded sheet metal sump barrier. The sheet metal is welded to the sump barrier frame. There is no interaction between the sheet metal and pipe.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)? YOI NDI UD N/AD-YE- ND UD N/AD-Y[J ND] uDl N/AD 8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?YE NEIUD'EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 3 of 5 Status: YEI NEI U--Area Walk-By Checklist (AWC) AWC-054 Location: Bldg. VC Floor El. 46'-0 Room, Area' N/A SWEL Components: SWELl-085 Comments (Additional pages may be added as necessary)

1. Mild surface corrosion is found on the hex nuts, studs and flanges at valve 215.2. Coating peeling from the concrete surface is covered by the Maintenance Rule Report.3. A boric acid film exists on most nearby surfaces.

The film is dry and no active leak can be observed.Evaluated by: Dan Nuta Date: 3-13-2013 Kai Lo iC t 3-13-2013 EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-By CHECKLIST ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 4 of 5 Area Walk-By Checklist (AWC) AWC-054 Status: YWI N[-- ULJ Location: Bldg. VC Floor El. 46'-0 SWEL Components: SWELl -085 Room, Area' N/A Photographs Note: Minor surface corrosion on a angle steel support Note: Duct louvers above have mild surface corrosion.(See photo)EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 5 of 5 Status: Y[ ND -IM Area Walk-By Checklist (AWC) AWC-054 Location, Bldg, VC Floor El. 46'-0 Room, Area 1 N/A SWEL Components: SWELl -085 Note: Gap between pipe and expanded sheet metal barrier EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 1 of 4 Status: YE NO UD-Area Walk-By Checklist (AWC) AWC-055 Location: Bldg. VC Floor El. 46'-0 Room, Area 1 N/A SWEL Components: SWELl -033 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)?

2. Does anchorage of equipment in the area appear to be free of significant 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)?YE] NDI UD N/AD YFI ND IUD- N/AD Y[E NO UE-] N/AR I 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.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 2 of 4 Status: Y[ NEI U-i Area Walk-By Checklist (AWC) AWC-055 Location: Bldg. VC Floor El. 46'-0 Room, Area 1 N/A SWEL Components: SWELl-033 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)? 1" spacing between a valve flywheel and the cable tray. The clearance is judged to be sufficient.. (See photo)YZ NEI U-- N/A-I 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)? Y[ NEI U-- N/AD1 Y[Z NEI U[- N/AD-YO NEI U[- N/A--EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 3 of 4 Status: YE] NEI U-I Area Walk-By Checklist (AWC) AWC-055 Location: Bldg. VC Floor El. 46'-0 Room, Area' N/A SWEL Components: SWELl -033 8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?YE]NINDUD_ Comments (Additional pages may be added as necessary) Minor surface corrosion was observed on the Uni-Strut anchorage Evaluated by: Dan Nuta , ' Date: 3/13/2013 Kai Lo " 3/13/2013 EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 4 of 4 Status: YW NEI UI--Area Walk-By Checklist (AWC) AWC-055 Location: Bldg. VC Floor El. 46'-0 Room, Area 1 N/A SWEL Components: SWELl-033 Photographs Note: 1" spacing between the valve's flywheel and cable tray.Note: Minor surface corrosion was observed on the Uni-Strut anchorage. EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 1 of 4 Status: YE NDI UD]Area Walk-By Checklist (AWC) AWC-056 Location: Bldg. VC Floor El. 68'-0 Room, Area' N/A SWEL Components: SWELl-082 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)?

2. Does anchorage of equipment in the area appear to be free of significant 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)?

YE] ND UELJ N/ADJ YEJ ND- UD- N/ADl YZ ND I UL-D N/AD I YIO NDI UDl N/AD-I 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.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 2 of 4 Status: YE NEI U-I Area Walk-By Checklist (AWC) AWC-056 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl-082 5. Does it appear that the area is free of potentially adverse seismic YE NEI U0 N/ALI interactions that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic YZ NEI U-- N/AD-interactions that could cause a fire in the area?7. Does it appear that the area is free of potentially adverse seismic YE- NEI UD- N/ALI interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

8. Have you looked for and found no other seismic conditions that could YE NEI UD-adversely affect the safety functions of the equipment in the area?Comments (Additional pages may be added as necessary)
1. Two light bulbs above the FCU are missing.2. Concrete floor spalling was identified in the Maintenance Rule Structural Monitoring Report 3. The cover for the knuckles container between conduit and Containment wall will be removed before entering 3R17 Outage Mode 4.4. Lanyards and tools on the floor are temporary during 3R1 7 and will be removed before entering Mode 4.EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 3 of 4 Status: Y[ NEI U-Area Walk-By Checklist (AWC) AWC-056 Location:

Bldg. VC Floor El. 68'-0 Room, Area' N/A SWEL Components: SWELl-082 Evaluated by: Dan Nuta Q Date: 3-4-2013 Kai Lo IC. .3-4-2013 EN-DC-168 REV 0 ATTACHMENT 9.7 AREA WALK-BY CHECKLIST Sheet 4 of 4 Status: YZI NFI Ui Area Walk-By Checklist (AWC) AWC-056 Location: Bldg. VC Floor El. 68'-0 Room, Area 1 N/A SWEL Components: SWELl-082 Photographs 114o0e.Rack 4A EN-DC-168 REV 0 Engineering Report No. IP-RPT-.12-00039 Rev,. 1 ATTACHMENT L -DEFERRED WALKDOWNS POTENTIALLY ADVERSE SEISMIC CONDITIONS Page L-I of II Enufnemeeri Reporit No IP-RPT-12-o0039 Re, I ATTACHMENT L -DEFERRED WALKDOWNS POTENTIALLY ADVERSE SEISMIC CONDITIONS Paue L-2 of I I SWCIAWC LICENSING BASIS LB # IDENTIFIED CONDITION EVALUATION RESOLUTION STATUS CONCLUSION

1. A few of the screws near the edge of the east and west Initial Action: CR GENERATED

-SEE STATUS COLUMN exterior panels are missing. The few missing screws will not SWEL1-008 affect the structural integrity of the frame, and there is no CR Operability Review: N/A (31MCC) adverse seismic interaction. Condition entered MCC-31 is not in Tech Specs or TRM, nor does it support any Tech Spec/TRM equipment CR-IP3-2013-00618

2. The two bottom interior panels have no screws attached to directly into CAP operability/functionality.

It is part of the CLE and thus must be functional. The missing screws do CLOSED the frame. There is no adverse seismic interaction because not impact the MCC's ability to power loads. The MCC is currently in service with all conditions the panel can only be dislodged and move toward the exterior normal and thus is functional. This is not reportable per LI-108.panel. CR Action: WR# 00298807 1. Inside the fuse panel on row 32 (above the spare EC 16500), there is a spare fuse block lying on the shelf of the cubicle. The horizontal seismic acceleration is low and the weight of the fuse block is minimal. Assuming the fuse block will move under inertial effects, there will be very low energy and no adverse seismic interaction is expected. Nevertheless, the fuse block should be removed.2. Inside cubide 52/LT IN, there is a loose nut on the concrete floor below the breaker rack. This is a housekeeping issue only. Initial Action: CR GENERATED -SEE STATUS COLUMN 3. On row 33, the cubicle (above cubicle MCC33), a spare fuse block (with no fuse) is lying on the shelf of the cubicle.The horizontal seismic accelerationi is low and the weight of CR Operability Review: the fuse block is minimal. Assuming the fuse block will move The conditions described in the CR involve spare fuse blocks inside a cubide, a missing screw on a N/A SWELl-014 under inertial effects, there will be very low energy and no Condition entered wire connector, and two missing screws on cover plates. As described in the body of the CR all CR-IP3-2013-00675 (SWGR 31) adverse seismic interaction is expected. Nevertheless, the directly into CAP these issue are minor and have no adverse affect on the operation 480V bus 2A and switchgear

31. CLOSED fuse block should be removed. The bus and all equipment powered from it remain operable.

This is not reportable per IP-SMM-LI-

4. On row 34. inside the first cubide from top (above 52-2A 108.cubicle), one of the two connectors providing support for a wireway is missing. Since the wireway with the wires inside is CR Action: WR# 299488 fairly light and the horizontal seismic acceleration is low, the seismic and normal forces acting on the connector will be minimal. One connector is judged to be adequate from a seismic perspective.

Nevertheless, the missing connector should be replaced.5. In the back of the Switchgear 31, there is an upper and lower panel on row 31. Both panels are missing one out of six screws. Since the horizontal seismic acceleration is low, the five existing screws will be structurally adequate.Nevertheless, the missing screw should be re-installed. Enwincering Report No [l'-RPT-12-O00(39 Re, I ATTACHMENT L -DEFERRED WALKDOWNS POTENTIALLY ADVERSE SEISMIC CONDITIONS Pa.e L-3 of 1I SWCIAWC LICENSING BASIS LB # W IDENTIFIED CONDITION EVALUATION RESOLUTION STATUS#_ CONCLUSION N/A AWC-044 1. A test instrument support built from steel wire is located right next to the Battery Charger 33. It is only 3 feet away from Switchgear 31 Bus 2A. The test instrument should be tied down to some fixed object such as the telephone booth to prevent any adverse seismic interaction.

2. On Panel XL9, 4 out of the 14 screws are missing on the panel cover. The remaining 10 screws are structurally adequate because the seismic acceleration is low and the panel weight is minimal. Therefore, there is no adverse seismic interaction.

Nevertheless. the missing screws should be re-installed.

3. On Strip Heater Panel 31, 1 out of 4 screws is missing on the side panel. The remaining screws are structurally adequate because the seismic acceleration is low and the panel weight is minimal. As such. there will be no adverse seismic interactions.

Nevertheless, the missing screw should be re-installed.

4. On Panel XV2, the front panel is missing 3 out of 14 screws. The remaining 11 screw are structurally adequate because the seismic acceleration is low and the panel weight is minimal. Therefore, there is no adverse seismic interaction.

Nevertheless, the missing screws should be re-installed.

5. The cabinet adjacent to EBR-16CB & EBR-17CB has 1 stripped screw and 2 missing screws out of a total of 20 screws. The remaining 17 screw are structurally adequate because the seismic acceleration is low and the panel weight is minimal. Therefore, there is no adverse seismic interaction.

Nevertheless, the missing and stripped screws should be re-installed and replaced.Condition entered directly into CAP Initial Action: CR GENERATED -SEE STATUS COLUMN CR Operability Review: This condition does not meet the reporting criteria of SMM-LI-108. The 480v switch gear is required to be operable per TS section 3.8.9. As discussed in the report no seismic concern exists theretore the AC sources remain operable.CR Action: WR# 00299849 CR-1P3-2013-00761 CLOSED Engineering Repoli No I P-RPT- 12-00030 Rev' I ATTACHMENT L -DEFERRED WALKDOWNS POTENTIALLY ADVERSE SEISMIC CONDITIONS Pace L-4 oilI SWCIAWC LICENSING BASIS LB # IDENTIFIED CONDITION EVALUATION RESOLUTION STATUS_ _CONCLUSION

6. Scaffold used the Switchgear's base as a support point. Since both the base of both the scaffold and the Switchgear are rigid, there is no adverse seismic interaction.

Since the mass of the scaffold is light relative to the mass of the Switchgear, and the seismic acceleration is low, the additional seismic force imposed by the scaffold onto the Switchgears base anchorage is judged to be acceptable.

7. There is a 20 feet long crack in the coating on the ceiling along the N-S direction (adjacent to the transformer section of Bus 2A). The crack is acceptable since it is at the concrete cover and the slab is reinforced with rebar that can take the tensile stress. There is also another short 4' long crack running E-W, on the ceiling near the opening. This crack is also acceptable based on similar reasoning.

These two cracks will be added to the Maintenance Rule Structural Monitoring Program for the Control Building at EL. 15'.8. An oil rag was observed on the floor under the 32 IA compressor. This is a housekeeping issue. Engineering Report No IP-RPT-Il2-0003 0 Re, I ATTACHMENT L -DEFERRED WALKDOWNS POTENTIALLY ADVERSE SEISMIC CONDITIONS Page L-5 _f I I SWCIAWC LICENSING BASIS LB # W CIDENTIFIED CONDITION EVALUATION RESOLUTION STATUS#_ CONCLUSION N/A SWELl-015 (SWGR 32)For Bus 3A side: Inside the fuse panel on row 7 (above 3AT6A), a control fuse block for tie breaker Bus 6A to 3A was pulled out and found lying on the shelf of the cubicle. The operator said that the IP3 SOP requires the fuse block be placed on the shelf in contradiction with the IP2 procedure which requires rotating the fuse block 180 degrees and re-inserted into the slot to show the fuse in "off" position.The horizontal seismic acceleration is low and the weight of the fuse block is minimal. Assuming the fuse block will move under inertial effects, there will be very low energy and no adverse seismic interaction is expected.Nevertheless, the practice of leaving the fuse block on the shelf can be avoided.For Bus 6A side: Inside the fuse panel on row 10, the fuse block for SWP33 was pulled out and found lying on the shelf of the cubicle. This is similar to the issue found on Bus 3A side.The horizontal seismic acceleration is low and the weight of the fuse block is minimal. Assuming the fuse block will move under inertial effects, there will be very low energy and no adverse seismic interaction is expected.Nevertheless, the practice of leaving the fuse block on the shelf can be avoided.Condition entered directly into CAP Initial Action: CR GENERATED -SEE STATUS COLUMN CR Operability Review: This condition does not meet the reporting criteria of SMM-LI-108. The 480v switchgear is required to be operable per TS section 3.8.9. As discussed in the report no seismic concern exists, therefore the AC sources remain operable.CR Action: CA will incorporate feedback IP3-11563 to change 3-SOP-EL-004 to reflect putting fuses for breakers on the 480V switchgear to OFF vice removed. Change procedure to reflect the methodology of 2-SOP-27.1.5. CR-IP3-2013-00765 Engieering Report No IP-RPT-I1 -10003 Rev I ATTACHMENT L -DEFERRED WALKDOWNS POTENTIALLY ADVERSE SEISMIC CONDITIONS PaNe L-6 of II SWC/AWC LICENSING BASIS LB # IDENTIFIED CONDITION EVALUATION RESOLUTION STATUS#_ CONCLUSION SWELl-015 (SWGR 32)N/A 1. On row 8, inside cubicle for 6A relays, the plastic clip for the wire was detached from the wall of the metal compartment because the glue was dried out.A few instances were observed. The horizontal seismic acceleration is low and the weight of the wire is minimal. Assuming the wire will move under inertial effects, there will be very low energy, insignificant displacement and no adverse seismic interaction is expected. Nevertheless, new adhesive should be applied to the plastic dip.2. There is a loose rivet at the door hinge for the 35FCU cubicle. WR# 00147781 was found on the door.3. On row 14, inside the upper most cubicle, one of the two connectors providing support for a wireway is missing. Since the wireway with the wires inside is fairly light and the horizontal seismic acceleration is low, the seismic and normal forces acting on the connector will be minimal. One connector is judged to be adequate from a seismic perspective. Nevertheless, the missing connector should be replaced.4. 3 cover panels for the Station Transformer

  1. 6 have missing screws: The front panel is missing 2 out of 10 screws. Two back panels are missing 1 out of 10 screws. Since the horizontal seismic acceleration is low, the remaining eight screws will be structurally adequate.

Nevertheless, the missing screws should be re-installed.

5. 3 cover panels for the Station Transformer
  1. 3 have missing screws: The two front panels are missing 1 out of 10 screws.The back panel is missing 2out of 10 screws. Since the horizontal seismic acceleration is low, the remaining eight screws will be structurally adequate.

Nevertheless, the missing screws should be re-installed. The Work Request (299868) below was created in order to: (1) Re-attach the plastic clip to the compartment's wall (2) Re-install the missing wireway connector, and (3) re-install the screws for the cover panels.Condition entered directly into CAP Initial Action: CR GENERATED -SEE STATUS COLUMN CR Operability Review: This condition does not meet the reporting criteria of SMM-LI-108. The 480v switchgear is required to be operable per TS section 3.8.9. As described in the report no seismic concerns exist and therefore the 480v AC sources remain operable.CR Action: WR#: 299868 CR-IP3-2013-00767 CLOSED Engineering Report No I P-RPT- 12-J0093 Rev I ATTACHMENT L -DEFERRED WALKDOWNS POTENTIALLY ADVERSE SEISMIC CflNDITIOTNS IPote L-'1 of I SWCIAWC LICENSING BASIS LB # IDENTIFIED CONDITION EVALUATION RESOLUTION STATUS CONCLUSION The walkdown has found the following discrepancies Initial Action: CR GENERATED -SEE STATUS COLUMN between the anchorage configuration shown on Drawing 9321-F-70553 Section A-A and the as built condition: CR Operability Review: 1. The drawing shows all anchor bolts are 0.75 inch but as built bolts are all 0.5" diameter. Rack 21 contains Wide and Narrow Range Steam Generator level transmitters. This CR describes a 2. The drawing shows 17 anchor bolts but the as built condition where field conditions do not match the drawing. As stated in the body of the CR the condition shows 8 of them were not installed. (Note: One existing SOUG evaluation of the rack bounds the discrepancies noted above. The condition does not compartment cannot be accessed with a sign "Door to impact the operability of the Wide and Narrow Range Steam Generator level transmitters. N/A SWELl-080 Remain Closed at all Times". Condition entered CR-1P3-2013-01346 (RACK#21)

3. Section A-A of Dwg. 9321-F-70553 is typical for both directly into CAP Rack 19 and 21. The two racks must have their own CR Action: individual anchorage because the two configurations, (1f EC 43612 was initiated to revise the affected drawings to show the as-built anchor bolt numbers including the floor penetrations, are different.

and sizes for Instrument Rack # 21.The drawing needs to be updated to show the actual as (2) Calculation C/S DA-83-0090-A has been revised per the as built condition found by the built configurations for the two racks. Fukushima Seismic Walkdown. By considering the configuration of (8) -1/2" Hilti Kwik Bolt with It should be noted that there is no operability concern 2.25" minimum embedment, the existing anchorage is structurally adequate to withstand all the because the existing SQUG evaluation of the rack postulated loads bounds the discrepancies noted above.The walkdown has found the following discrepancies between Initial Action: CR GENERATED -SEE STATUS COLUMN the anchorage configuration shown on Drawing 9321-F-70553 Section A-A and the as built condition 1. The drawing shows all anchor bolts are %" but six of the CR Operability Review: bolts observed in the three accessible compartments are 1/2" This condition does not meet the reporting criteria of SMM-LI-108. Based on input from Engineering; diameter. An evaluation for the as-built anchorage configuration was performed and found that the as-built close to the concrete edge, less than the normal required configuration is structurally adequate when analyzed for seismic loads associated with a postulated edge distance to achieve full capacity per the Hilti Bolt SSE occurrence. Therefore no operability concern exists.requirements. N/A SWELl-079

3. Section A-A of Dwg. 9321-F-70553 is typical for both Rack Condition entered CR Action: CR-iP3-2012-01440 (RACK#19) 19 and 21. The two racks must have their own individual directly into CAP anchorage because the two configurations, including the floor (1) EC 43612 was initiated to revise the affected drawings to show the as-built anchor bolt penetrations, are different.

numbers and sizes for Instrument Rack # 19.(2) Calculation 6604.003-C-CT-RA-001 has been revised per the above as built condition found The drawing needs to be updated to show the actual as built by the Fukushima Seismic Walkdown.configuration and a revised calculation is needed. (3) By conservatively considering all the existing 16 bolts as 1/4" Hilti Kwik Bolt (actual is ten There is no operability concern because an evaluation for the 3/4" and six 1/2") with 2.5" embedment, the minimum edge distance for 100% strength is as-built anchorage configuration was performed and found 1.25". This satisfies the minimum edge distance to assure full capacity for 1/4" Hilti Kwik Bolt that the as-built configuration is structurally adequate when with 2.5" embedment. Using the bilinear interaction equation with the tension and shear from analyzed for seismic loads associated with a postulated SSE the existing calculation above, the anchorage is adequate to withstand the postulated loads.occurrence. Enuumeermg Report No IP-RPT-12-0003) Rev I ATTACHMENT L -DEFERRED WALKDOWNS POTENTIALLY ADVERSE SEISMIC CONDITIONS Pavue L-8 of i I# SWCIAWC LICENSING BASIS LB # IDENTIFIED CONDITION EVALUATION RESOLUTION STATUS# CONCLUSION Initial Action: CR GENERATED -SEE STATUS COLUMN A corner fitting for strut (similar to Unistrut channel type)located approximately 12 feet above the floor and adjacent to CR Operability Review: the Accumulator, has the following of deficiendies: This does not meet the reportability requirements of IP-SMM-LI-108. The struts were evaluated by SWELl-101 (1) The fitting is a go degrees fitting that was cut to Condition entered engineeri.ng and determined to be structurally adequate for a design basis seismic event therefore CR]IP3-2013-01530 N/A SW -11 accommodate the bending of the strut at the two ends ditlyninteredP there is no sump dogging or missile hazard concern. No specific component or system is impacted CLOSED N/ )ACCUM 31) I ea usm m dae the stus boend n t oge ther a t ran angl g eth e r t han end directly into CAP because the struts come together at an angle greater than 90 as noted in CR. Operability review not required. An evaluation was performed for the fitting and degrees. found it to be structurally adequate for a design basis seismic event.(2) The fitting has a pronounced surface corrosion on the outside. (Photo shows no observable corrosion on the inside surface of the strut.) CR Action: None Initial Action: CR GENERATED -SEE STATUS COLUMN CR Operability Review: During the walkdown. the following items were observed: This does not meet the reportability requirements of IP-SMM-LI-108. These items were discussed with engineering. The components on WCCPP Rack 16 are manual (1) On rack 16, all the doors (with the isolation valves inside) valves which are rugged and insensitive to any motion of the doors. The 5 existing screws are were not locked. The side panel has duct tape on one edge to adequate to secure the panel.replace the five missing screws. (5 out of 10 screws for the SWELl-010 panel are missing) The duct tape is a sump clot issue. The components on WCCPP Rack 17 are manual valves which are rugged and insensitive to any CR-IP3-2013-01634 N/A (2) On rack 17 located near 32CRF, most of the doors (with Condition entered motion of the doors. The 4 existing screws are adequate to secure the panel.the isolation valves inside) were not locked. The side panel is The components on WCCPP Rack 18 are manual valves which are rugged and insensitive to any missing 6 of the 10 screws. motion of the doors. The panel is believed to remove for outage work.(3) On rack 18 located near 33CRF, most of the doors (with the isolation valves inside) were not locked. The side panel is CA-1 issue to ensure tape is removed from rack 16 and that panel on rack 18 is installed. missing 9 of the 10 screws. The panel cover can swing The conditions described do not impact the operability WCCPP.sideway during a seismic event because it only has 1 screw.CR Action: Tape was removed and screws added to rack 18. The other 2 racks will be addressed by work order 345530 that is a priority 3G.Initial Action: CR GENERATED -SEE STATUS COLUMN A vertical Unistrut projecting above MCC 38 that is touching a horizontal 2 1/2" diameter stainless steel pipe carrying CR Operability Review: SWELI-0l0 demineralized water to the Fire Hose station located east of Rack 19. The Unistrut supports no instrumentation over the This does not meet the reportability requirements of IP-SMM-LI-108. This condition was discussed CR-IP3-2013-01635 N/A (38MCC) last 6 inches of the projection above the MCC and this portion Condition entered with engineering. There is no impact to any to any safety related equipment. No operability review CLOSED directly into CAP required AWC-015 may be considered excess material that may be removed. required.The projecting Unistrut should be shortened by 4" to 6", or a sufficient portion, in order to eliminate the possible interaction between the 2 1/2" diameter pipe and MCC 38. CR Action: WO# 345157 initiated and completed the removal of the upper Unistrut to dear the pipe. Enginecerin Repolr No I P-RI'T- I 2-00)03Q Rev I ATTACHMENT L -DEFERRED WALKDOWNS POTENTIALLY ADVERSE SEISMIC CONDITIONS Pace L-Q of I I SWCIAWC LICENSING BASIS LB # W C IDENTIFIED CONDITION EVALUATION RESOLUTION STATUS#__CONCLUSION SWELl-009 (36AMCC)AWC-028 N/A The following conditions are observed: (1) Two carts near the HP desk by the entrance should have their wheels blocked/choked to prevent movement during a seismic event. These carts are not near safety related equipment currently but should have their wheels choked in accordance with IP-SMM-DC-910. (2) The two exterior side panels of the MCC have missing screws. One top screw of a side panel is missing 1 out of 16 screws. For the other side panel, one bottom screw is missing out of 16. Even though there is one screw missing on each panel, the panel is judged to be supported adequately by the remaining 15 bolts during a seismic event because the weight of the panet is small when compared to the combined capacity of the 15 screws.(3) The hinged vertical wire way exterior panel (on the south side of MCC) adjacent to cubicle t0FJ and 10FM is missing one of the two screws. The one remaining screw on the panel and the hinge are structurally capable to hold the panel in place during a seismic event because the panel is light.(4) The hinged vertical wire way exterior panel (on the south side of MCC) adjacent to cubide 10FC has one screw with a broken pin and can fall off. The hinge and the other remaining screw on the panel are structurally capable to hold the panel in place during a seismic event because the panel is light.(5) Inside the compartment above cubicle 9RC, an inside partition panel (approximately 6" wide by 10" high) is missing two screws on the right side. This panel is held in place by one screw and one inserted tab on the left side. The inserted tab and the remaining screw on the panel are structurally capable to hold the panel in place during a seismic event because the panel is light. Though the partition panel is opened up with an observable gap, it cannot interact with anything nearby.(6) In the bottom of the MCC, with the bottom panels removed, there are pieces of tie wraps, two fuses and tape Iving inside. This is just a house keepinq issue.Condition entered directly into CAP Initial Action: CR GENERATED -SEE STATUS COLUMN CR Operability Review: This does not meet the reportability requirements of IP-SMM-LI-108. The conditions described in items 1 and 6 are housekeeping issues and do not impact the operability of any equipment. As slated in the CR the fasteners described in items 2, 3, 4 and 5 are capable of supporting their associated panels on MCC-36A. MCC-36A is operable.CR Action: Item 1: The carts have been damped.Item 2 to 6: WR# 00302050 has been initiated to resolve these issues.CR-IP3-2013-01644 CLOSED Initial Action: CR GENERATED -SEE STATUS COLUMN The walkdown team noticed a housekeeping type potential CR Operability Review: defidency at the floor drain located in front of the Waste This does not meet the reportability requirements of IP-SMM-Ll-108. The condition described is a N/A AWC-028 Disposal Panel. The floor drain appears to have an Condition entered housekeeping issue. No operability review required CR-IP3-2013-01645 accumulation of debris that may affect the drain directly into CAP CLOSED collection/flow capability. The drain should checked and CR Action: cleaned if and as necessary. WR 00302006 has been initiated. Engineering Report No I P-RPT-12-00039 Re,. I ATTACHMENT L -DEFERRED WALKDOWNS POTENTIALLY ADVERSE SEISMIC CONDfITION S Pm¢I -lII ,,ff I I SWC/AWC LICENSING BASIS LB # IDENTIFIED CONDITION EVALUATION RESOLUTION STATUS CONCLUSION The following cover panels were found to have missing screws. There is no operability concern because the weight of each panel is fairly light and the remaining screws have sufficient capacity to support the panel during a design basis Initial Action: CR GENERATED -SEE STATUS COLUMN earthquake. The conditions are as follow: CR Operability Review: N/A SWEL1012 (2) On the right side panel, 1 out of 16 screws are missing. Condition entered This does not meet the reportability requirements of IP-SMM-LI-108 As described in the body of the CR-IP3-2013-01788 (39MCC) (3) On the bottom panel, 1 out of 3 screws are missing, directly into CAP CR the panels are adequately supported by the existing fasteners. The missing screws do no impact CLOSED (4) On the cubicle 3G cover panel, 2 out of 4 screws are the operability of MCC-39.missing.(5) On the cover panel of the cubide above cubicle 6K, 2 out CR Action: WR# 302229 of 4 screws are missing.(6) On the cover panel of Box XZ21, above the MCC, 1 out of 8 screws are missing.NRC identified the following conditions:

1. In FSB EL. 41', a bent conduit clamp and a sagging EMT was found on the ceiling above the SFP pumps. There is no adverse seismic interaction concern because the EMT is still connected to the lighting fixture that is 1 foot away. The EMT's is light weight and the lighting fixture has adequate Initial Action: CR GENERATED

-SEE STATUS COLUMN anchorage. The conduit's stress is very low and is well within the allowable stress limit. CR Operability Review: 2. In F5B EL. 55', pipe support SFPC-R-8 (along the south wall) This does not meet the reportability requirements of IP-SMM-LI-108. The condition described is a AWC-041 for 10"Line 329 SFP suction piping has a gap at the upper Condition entered housekeeping issue. No operability review required CR-IP3-2013-01645 N/A AWC-042 two anchor bolts. For the first bolt, there is a <1/16" gap directly into CAP CLOSED between the washer and the plate. The washer has partially CR Action: contact with the plate. For the second bolt, there is no WR 00293874 is generated to replace the bent conduit clamp for the EMT above the 5FP pumps.washer and the 1/16" gap is between the nut and the base plate. The existing calculation shows the stress interaction of WR 002g3g77 is generated to re-install washer (more than 1 may be needed), and retorque the the upper bolts is very low. The partial contact washer can bolt to develop the tensile capacity.develop the tensile capacity of the expansion anchor bolt.Considering the bolt with no washer as ineffective, the remaining upper bolt's tension will be more than doubled and the stress interaction will still be within the acceptable design limit. The existing condition is structurally adequate. Enginecrain Report No I]P-RPT-12 I30( 131 Rev I ATTACHMENT L -DEFERRED WALKDOWNS POTENTIALLY ADVERSE SEISMIC CONDITIONS Rae I -Il of I I SWCIAWC LB # IDENTIFIED CONDITION LICENSING BASIS EVALUATION CONCLUSION RESOLUTION STATUS 21- AWC-046, W" (1.05" OD) station air pipe has support at EL. 68' and The maximum bending stress is less than the allowable N/A Acceptable As-Is SWELl-,050 EL. 93'. The span length is 25 feet. yield stress for A106 Gr. B material and is located at the AWC-048, support. The U-bolt will restrain the pipe from SWELl-083 interacting with FCU and rack 48.22 SWELl-079

1. The drawing shows all anchor bolts are '%" but six of the Consider all the bolts as '" Hilti Kwik Bolt, 2.5" embedment, Drawing needs to be updated. CR-1P3-2013-01440 bolts observed in the three accessible compartments are ,A" and the minimum edge distance for 100% strength is 1.25".diameter.

Using the bilinear interaction equation with the tension and 2. The bolts located on the front side of the rack are 1.5" to shear from an existing calculation, the anchorage is adequate the concrete edge, less than the normal required edge distance to achieve full capacity per the Hilti Bolt to withstand the postulated loads.requirements. 23 SWELl-101 (1) The fitting is a 90 degrees fitting that was cut to By treating the cut fitting as a rectangular section 1" long and N/A CR-IP3-2013-01530 accommodate the bending of the strut at the two ends a corroded thickness of 0.03", the seismic forces acting on because the struts come together at an angle greater than 90 the section will still be less than the shear and tensile (CLOSED)degrees.(2) The fitting has a pronounced surface corrosion on the capacity.outside.(Photo shows no observable corrosion on the inside surface of the strut.)24 SWELl-80 The top of the MCC has a gap of W" to the concrete wall. The seismic displacement at the top of MCC is less than N" N/A Acceptable As-Is Need to determine if there is any seismic interaction, clearance provided and therefore existing field condition is acceptable. R1** The LB sequence number is a continuation of 7t°Prepared by: Reviewed by: Kai Lo Date: 3-20-2013 jai-, t}J:.I, j i Peer Review Team Member Date: 5-24-2013 ATTACHMENT M -DEFERRED WALKDOWNS LICENSING BASIS EVALUATION FORM ATTACHMENT 9.9 LICENSING BASIS EVALUATION FORMS AND INSTRUCTIONS Sheet 1 of 3 Licensing Basis (LB) Evaluation Form LB Evaluation No. LB-21 Originating SWC/AWC AWC-046.048.SWEL1-083 Equipment ID No. RACK#48,CRF2 Equip. Class 18 &10 Equipment Description SG #33 & 34 Main Steam Flow Transmitter Rack. Containment Recir Fan 32 Location: Bldg. VC Floor El. 68'-0" Room, Area Condition The /" (1.05" OD) station air pipe is supported at EL. 68' and EL. 93'. The span between supports is 25 feet. This pipe is located near Rack 4B and also near the FCU.The pipe is not safety related but there is a need to determine whether there is any seismic interaction concern associated with the large span between the supports.Documents Reviewed No design document was found.Licensing Basis In seismic class I buildings such as the Containment Building, all SSC must be seismically designed to preclude seismic interaction with safety related components. Evaluation The maximum bending stress in the station air pipe under SSE loading is less than the yield stress for A106 Gr. B material. The maximum stress occurs at the support. The U-bolt will restrain the pipe from interacting with the FCU and rack 4B.'The evaluation is shown on the next page.Conclusion (8) Condition Meets the L,,censing Basis, "71 es " No Prepared by: Kai Lo .-_. Date 3-5-2013 Licensing Bagis Reviewer D. Nuta ..A i..Peer Reviewer Reviewen by: Date 3-5-2013 AWCNO 48&46 Vertical Station Air pipe having a long span was found adjacent to FCU and Rack 4B.There is a need to determine the seismic interaction effect.Vertical Station Air pipe (1.05" D) has a supported span of (93 -68) ý 25 feet L= 25 ft = 300 For K-I spec, 3/4" sch 80, w 1.474 plf= 0.123 Location: VC EL. 95', use peak G value from 0.5% damping response respectra Gh = 1.932 from 4.5 to 3.84 Hz, MRM = 1.5 Gv = 2Gh/3 = 1.288 Axial stress cause by piping is negligible. D = outside diameter z 1.05 in S = section modulus = 0.0853 in'For fixed end beam uniformly load: inch#?/inch OBE > DBE M =wL 2/12 = 921.3 in-lb For fixed end beam uniformly load: fb = (MRM)Gh(M)/S = 31293 psi < O.Fy = 0.9(350000) This pipe is nonsafety related pipe, designed for seismic interaction II over I only.The maximum stress occurs at the fix end, where the U-bolt is located.U-bolt tensile capacity = (t(0.189)-/4)(1.33".6*35000) = 784 lb Seismic load acting on U-bolt =(MRM)Gh(wL) 107 Ib < U-boli- c..pao Check seismic displacement: g = gravitational constant = 386.4 E-- modulus of elasticity= 2.79E+07 I -moment of inertia = 0.0448 d = seismic displacement =(MRM)GhwL 2/[384E] 6.01 inch., small when compared to the >' 5 feet di5tance to SSC.There is no adverse seismic interaction effect..31500 psi iv. k. ATTACHMENT 9.9 LICENSING E3ASIs EVALUATION FORMS AND INSTRUCTIONS Sheet 1 of 3 Licensing Basis (LB) Evaluation Form LB Evaluation No. LB-22 Originating SWC/AWC SWEL 1-079 Equipment ID No. RACK#19 Equip. Class 18 Equipment Description Pressurizer Level Transmitter Cabinet Location: Bldg. VC Floor El. 68'-0" Room, Area __Condition 1. The drawing shows all anchor bolts are 34" but six of the bolts observed in the three accessible compartments are /' diameter.2.The bolts located on the front side of the rack are 1.5" to the concrete edge, less than the normal required edge distance to achieve full capacity for a 3/4" Hilti Bolt per the Hilti Bolt requirements. Documents Reviewed 1. SQUG calculation for Rack 19 2. Calculation 6604.003-MAG-322

3. Hilti Fastening Technical Catalog 4. EPRI NP-5228SL, Rev. 1, Volume 1,"Seismic Verification of Nuclear Plant Equipment Anchorage" Licensing Basis Safety related SSC must be seismic class 1, i.e. maintain structural integrity and perform their intended function under a postulated SSE occurrence.

Evaluation Drawing 9321-F-70533 section A-A shows (16)-3/4' bolts with no edge distance violation. Inspection showed 6 of the 18 visible bolts are ." while the other 12 bolts are GrigillrI SQUG calculation does not have a reduction factor f-r th, ,dge distance even inough it considered only a six l." bolt configuration. UE & C Calculation 6604-00:3-CALC-CALC-322 used an eighteen bolts configuration, in conjunction with a Stardyne response spectrum finite element analysis. However. the edge distance reduction was not taken into account for the ev'aluation of the 3..1 bolts.On page 26. the calculation enveloped the highest reaction Forces for the three directions from the anchor bolts. For a rectangular bolt pattern, the highest tensile force is at the corner becaluse it is furthest away from the center This evaluation ,..,ill treat all 1. .. s n t For a '4" Hilti Kwik Bolt, 2.5" embedment, the ultimate tensile and shear tensile strength in 3000 psi compressive strength concrete is as follow: Note: Average of 2000psi and 4000 psi to represent the 3000 psi capacities The minimum edge distance for 100% strength is 5(0.25") =1.25" < 1.5" provided.Tu ultimate tensile strength = 0.5(2800+3350) = 3075f Su ultimate shear strength = 0.5(1653+2612) = 2133f#Based on a factor of safety of 4, The allowable strength is as follow: Ta = allowable tensile capacity 3075/4 769#Sa = allowable shear capacity 2133/4 5334 From the calculation 6604-003-CALC-CALC-322 page 26, the tension is 660# and the resultant shear is 173f Using the bilinear formulation: Resultant shear/allowable shear = 175/533 = 0.33 0.7(T/Ta) + (S/Sa) = 0.7(660/769)+ (175/533) = 0.93 < 1.0, o.k.Under conservative assumptions, the rack 19 anchorage is adequate to withstand the postulated loads.Conclusion (8) Condition Meets the Licensing Basis: [] Yes E] No Prepared by: Kai Lo Date 3-12-2013 Licensing Basis Reviewer Reviewed by: Dan Nuta ,- k..- Date 3-12-2013 Peer Reviewer ATTACHMENT 9.9 LICENSING BASIS EVALUATION FORMS AND INSTRUCTIONS Sheet 1 of 3 Licensing Basis (LB) Evaluation Form LB Evaluation No. LB-23 Originating SWELl-101 Equipment ID No. ACCUM31 Equip. Class 21 Equipment Description SIS Accumulator 31 Location: Bldg. VOC Floor El. 46 Room, Area Condition (1) The fitting is a 90 degrees fitting that was cut to accommodate the strut at the two ends because the struts come together at an angle greater than 90 degrees.(2) The fitting has a pronounced surface corrosion on the outside.(Photo shows no observable corrosion on the inside surface of the strut.)Documents Reviewed No design document is found, Licensing Basis In seismic class I building such as Containment Building. all SSC must be seismically designed for seismic II over I interaction. Evaluation Assume the strut fitting was made of carbon steel with 35 ksi yield strength. Since the fitting was cut to accommodate an angle greater than 90 degrees. the fitting is like a hinge transferring only forces.Assume the strut metal thickness has corroded from 14 Ga to 0.03". with a height of 1".shear capacity = (1".)(0.03")(0.4)(35000psi)

420 lb.tension capacity = (1')(0.03")(0.6)(35000psi)

630 lb.For VC EL. 46' ISRS. peak seismic acceleratinn -0.64g Weight per linear foot =-1 .gft/foot Conserv-lively assume 20 feet lengrt of strut.Seismic force = 1.9(20)(1.5x0

64) =37 Ilb A seismic force of 37 1b is rnuch smanler than the aflowable capacity of the corroded fitting, therefore the struts will not collapse during a DBE. Since there is no SSC within 3 inches of the struts, there is no adverse seismic interaction Conclusion
8) C-on~lition m, th- Lir,(Jsing

~is Y .:. Prepared by: Reviewed by: Kai Lo eýa6 Licensing Basis Reviewer D. Nuta Peer Reviewer Date 3-14-2013 Date 3-14-2013 ATTACHMENT 9.9 LICENSING BASIS EVALUATION FORMS AND INSTRUCTIONS Sheet 1 of 2 Licensing Basis (LB) Evaluation Form LB Evaluation No. LB-24 Originating SWC/AWC SWEL-010 Equipment ID No. 38MCC Equip. Class 1 Equipment Description Battery Charger Location: Bldg. VC Floor El. 68'-0 Room, Area Condition There is a q4" clearance between the side of MCC and the concrete wall. Need to determine if the MCC would impact the wall during a SSE.Documents Reviewed No previous seismic calculation for this condition was found.Licensing Basis SSC providing a safety-related function needs to be supported seismically and free from adverse seismic interaction. Evaluation The seismic displacement of the MCC and the concrete wall are determined. The evaluation is performed on the next page.Conclusion (83) Condition Meets the Licensing Basis:... -. Yes [7 No Prepared by Kai Lo , __. D., 3- 6-2013 Iicensing Basis Reviewer Reviewed by: D. Nuta [Date 3-16-2013 Peer Reviewer SWELI-010 Determine if 3/4" clearance between 38MCC and concrete wall is adequare The concrete wall and slab 'vhich MCC 38 is anchored to move together. The relative displacement between the wall and MCC equals the MCC displacement. Determine the seismic displacement for MCC: This MCC has a reinforced angle steel anchorage along the two long sides of the MCC. Furthermore, there are conduits connected to the top of the MCC. Generally, MCC is in the range of 3 to 8 Hz, depending the type of anchorage, whether there is cable coming from the top, and the number of stacks connected together. Based on actual field condition, the upper range will be used here.f = 1st mode frequency = 8.0 Hz based on EPRI TR-102180 g = gravitation constant = 386.4 A = peak spectral acceleratioC based on 2% damping 0.61 at inner VC EL. 69'dl = seismic displacement = Ag/[2f 12 = 0.093 inch < 3/4" provided, o.k.-:9 z.t: /}}

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