ML13003A026

Report No. MPR-3812, Rev. 3, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic, Page C-372 Through End

ML13003A026
Person / Time
Site:	Peach Bottom
Issue date:	11/16/2012
From:	Schlaseman C S MPR Associates
To:	Office of Nuclear Reactor Regulation, Exelon Generation Co
References
RS-12-173 MPR-3812, Rev 3
Download: ML13003A026 (157)

Text

Sheet 1 of 2 Status:& N U Seismic Walkdown Checklist (SWC)Equipment ID No. ODGO12 Equip. Class'2 (17) Engine Generators Equipment Description E4 Standby Diesel Generator Location:

Bldg. Diesel Generator Floor El. 127 Room, Area D/G-9 Building Manufacturer, Model, Etc. (optional but recommended)

CA I Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?I Y* NEI 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?YEY NEI YD NEI U- N/AD Uri N/AD UD N/AEJ 5. Is the anchorage configuration consistent with plant documentation?(Note: This question only applies if the item is one of the 50% for YE No UD N/AD bA4"23 6.which qn anchorage configuratio vqrification is required.)

ancag freeu of N UW Based on the above anchorage evaluations, is the ancho age free of )X ND U-1 potentially adverse seismic conditions?

oCi~OOr ~1?0LT EIZE 't>'fCfjCpA)A4 poettL,-WM

• ~)~~~~0 ~co3 ~' qi 12 Enter the equipment class name from Appendix B: Classes of Equipment.

<C-3 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Nn

• R5-19-171 C-372 Sheet 2 of 2 Equipment ID No. ODG012 Equip. Class 1 2 (17) Engine Generators Equipment Description E4 Standby Diesel Generator Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

YEVNEI UD N/AL]jVr OW' SMJ&7,tIYO I)IK C3OOIJLM Iv.,r OdiLL-D) &,t'MOr 4"PlACtir.

L-IKAT, -q'vt 1401tl5M'00 6V1,W) CNtACR. AJu.- ior 4Pg,,-a- F4,7 MACA 8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Y[efNL] UE N/AL]and masonry block walls not likely to collapse onto the equipment?

I-JOr 9. Do attached lines have adequate flexibility to avoid damage? Yf'NEI UL] N/AU 10. Based on the above seismic interaction evaluations, is equipment free Y[n/Nl- UL]of potentially adverse seismic interaction effects?Other Adverse Conditions

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

Comments (Additional pages may be added as necessary.)

-4)u owLv wtqI-)o9 rd~ sto~Ror QrR,40&f~t, Evaluated by: tf;/q;41 Date: Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 C-373.nrrPqnnndrinr..

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• RR-1l-17.1 C-376

=r;D -0* 0 0 CD C)0 0-A 0-V~ 0 M z 0* 0 S .W m-a C V CD 5 0 C)0 N)

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Sheet 1 of 2 Status: 0 N U Seismic Walkdown Checklist (SWC)Equipment ID No. ODP Equif. Class1 2 (05) Horizontal Pumps Thnilinment ThPientinn E4 DIG Lidye Oil Transfer Pumn Location:

Bldg. Diesel Generator Floor El. ]2/'.-14,-

Room, Area D/G-9 B u ild ing ."4 Z 4 -Manufacturer, Model, Etc. (optional but recommended)

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hqrdware?3. Is the anchorage free of corrosion that is more than mild surface oxidation?

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

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

YEI NX YE3"NE] UI- N/All Y[9"NE] UE N/AO Y~1'NE1 UD N/A[YEI NEI UIJ N/A NEI U[Q"Enter the equipment class name from Appendix B: Classes of Equipment.

<C-3 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 flnrrPnnnrli~nr'.

Mn *R-19-17.C-380 Sheet 2 of 2 Equipment ID No. 0DPI'R 60 Equip. Class" (05) Horizontal Pumps Equipment Description E4 DIG )! Oil Transfer Pump Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?WT'r TA 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?YIt/ND UD N/AD YIEJ'4E UD N/AD YEI'ND UEI N/AD Y[3ND UD Other Adverse Conditions

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

Comments (Additional pages may be added as necessary)

At/A Evaluated by:'Date: _ _ _ _ _ _qjl'71ýAIZ

< C-4 A>Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 flnrrP-nnndPnr.P Nn

• R-19-17q C-381

--0;p~z o m-o CD I 2 CD-5 0 Sheet 1 of 2 Status: ON U Seismic Walkdown Checklist (SWC)Equipment ID No. ODT40 Equip. Class 1 2 (21) Tanks or Heat Exchangers (Vertical)

Equipment Description E4 Diesel Generator Fuel Oil Day Tank Location:

Bldg. Diesel Generator Floor El. 127 Room, Area D/G-9 Building Manufacturer, Model, Etc. (optional but recommended)

-Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?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.)

COA]RUIc"AV ' DWTc OwO 1q9057t3, tv.7 6. Based on the above anchorage evaluations, isthe anchorage free of potentially adverse seismic conditions?

YR'ND YEýNE- U0 N/AD YEI'N[I UI1 N/AD YE(NEI UD N/Al YE3'NE UDl N/AD YWfN-I UD.12 Enter the equipment class name from Appendix B: Classes of Equipment.

<C-3 )Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 (.nrr.nnnd1.nr'.p Nn

• RR-19-17.C-383 Sheet 2 of 2 Equipment ID No. ODT40 Equip. Class 1 2 (21) Tanks or Heat Exchangers (Vertical)

Equipment Description E4 Diesel Generator Fuel Oil Day Tank Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

Y["NEI UO] N/AOl.8. Are overhead equipment, distribution systems, ceiling tiles and lighting, YMNI"N U-I N/AO 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?YF/NI" UEI N/AO YOI/NI-I u-1 Other Adverse Conditions

11. Have you looked for and found no other seismic conditions that could Y0'/NEI- U-1 adversely affect the safety functions of the equipment?

Comments (Additional pages may, be added as necessary)

NAl Evaluated by: L.&:=v Date: I 812?/26[2< C-4 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rnrrP-nnnr1Pnr.P Nn* RR-19-17.1 C-384

,-U 0-.0 (D z 0 0 Lcn 0:3 I I m CD Sheet 1 of 2 Status: N U Seismic Walkdown Checklist (SWC)Equipment ID No. AD*9t- Equip. Class 1 2 (09) Fans Equipment Description DIG Building Vent Supply Fan Location:

Bldg. Diesel Generator Floor El. 151 Room, Area D/G-20 Building'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 NEI of the 50% of SWEL items requiring such verification)?

V u/erl40 d' 0 k V 2. Is the anchorage free of bent, broken, missing or loose hardware?1; LNI UE] N/AE UD N/AE 3. Is the anchorage free of corrosion that is more than mild surface Y¶ DNE]oxidation?

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

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

Y;NE UO N/AE P NEI UL N/All)NEI ULD 12 Enter the equipment class name from Appendix B: Classes of Equipment.

<C-3 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 flnrrPnnndPnr.P Nn C-386 Sheet 2 of 2 obVOOV' 4c Equipment ID No. ODVV9- Equip. Class" (09) Fans Equipment Description DIG Building Vent Supply Fan Interaction Effects 7. Are soft taets free from impact b e met or structures?

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and ma onry 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?Y/O NE] U[] N/A[Uý9NEII UL- N/AUI ULI N/AI-4NIJ UE1 Other Adverse Conditions

11. Have you looked for and found no other seismic conditions that could ';t "[-1 U[I]adversely affect the safety functions of the equipment?

Comments (Additional pages may be added as necessary)

Date: A(3/< C-4 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 r.nrrAqnnnnrJ Nvn" RR-19-17R C-387 (D 3.s >*pi Er~O= 3 m 30 CD C)0)0ý

-.0 z o!.0-~CD-1 .m.0 C.CD 0 uCD z T. o:3 0 0 T* 0 ci, m 30 C)CD.-06 Sheet 1 of 2 Status:&M N U Seismic Walkdown Checklist (SWC)Equipment ID No. 0HT95 Equip. Class1 2 (21) Tanks or Heat Exchangers (Vertical)

Equipment Description E4 Diesel Generator Starting Air Reservoir Location:

Bldg. Diesel Generator Floor El. 127 Room, Area D/G-9 Building Manufacturer, Model, Etc. (optional but recommended)

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the: SWEL. The space below each of the following questions may be used to record the results ofjudgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)?

YgNEJ I 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?

L.L (Note: This question only applies if the item is one of the 50% for K hc a anchorage configuration verifi to §required.)A~

ZW -J t-'A V."ocr6H;

-5(Jý-O r 46. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

u ACCUPT'A1BLC 1- c 1I1/5-Z EKNEI UEI N/ADZ Y"NEI UD NIAE1 YIg'NEI UE1 N/Afl YEI NX UEJ N/A[l 4~r~La '~ ncio- 6A4~YNNEIUE 12 Enter the equipment class name from Appendix B: Classes of Equipment.

< C-3 >" Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 r.nrrPnnnd1nr-.p Nn

• R.R-I-1-71 C-391 Sheet 2 of 2 Equipment ID No. 0HT95 Equip. Class" 2 (21) Tanks or Heat Exchangers (Vertical)

Equipment Description E4 Diesel Generator Starting Air Reservoir Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

W4 .V9j IFAF4M(?T5

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

Y["ND UO N/AD Y[2NND UD N/A*VL~jL1/2eer-UV~3 '~'r~OW LT ~A'es4uLWAIwP XvQ'CI 0 W 1 zMTLC Ck >iiIi 13:A NOT .KA~j 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?YMIND UD N/AD-YMVND UD1 Other Adverse Conditions

11. Have you looked for and found no other seismic conditions that could Y["ND UD* ...adversely affect the safety functions of the equipment?

Comments (Additional pages may be added as necessary.)

~ee 0+{~b 4 J volvc~'rv Evaluated by: Date: M OD"i/ 1-71 V-L riz-, -Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rlnrrA-nnndPnr.P Nn -RS-19-171 C-392 i I~i~Q L~Mj~. Li~L<"1* ~T ill*1~-~.*') 1.....LU 1*I I I. I.11 I I I --~ fuji..1~Ip I I.~

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0.06496 0.006.72 0.00745 0.01196 0.0145 0.l02061 0. 026.9 ,"0.0454, 0.0678 0.0933 0.12 57 0.162.0.202 0.302 0.419 0.551 0.693 0689.0.0037 0,00487.l0 .00604 0.;00796 0.00909 0.014 0..0175.0.024.2 0.0318. 0..0775 0. 1063 0.01419 0.182..0.226 0.334.0.462.0.60 6 0.763.0.969 1/8 11/4 1.125 1.25 1-http://www.efunda.com/designstandards/screws/screwunc.cfm[9/13/2012 4:15:32 PMJ Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rnrrp.nnnrlpnrp.

Nn " RR-19-171 C-394 Coarse Thread UNC Series 3/8.13/2.-2% -.2 1/2 23/4" 3..31/31/2 3%1.375.1.5 1.75.2 2.25 2.5 2.7S 3.25: 3.5 3.75.6 1.2667.1.1766.'6. 1.3917' 1.3016-5 1.6201. 1,5119 4.5:. 1.8557 1.7353, 4..5 2.-. 2.1057 .1.9853..4 2.3376 2.2023."4. .2.5876 2.4523 4 .2.8376 2.7023 4 3.0876 2.9523'4 3.3376 3.2023.4 3.5876 3.4523 4 .3.8376 3.7023 1.1.946..1.3.196'1.5335." '1.7594 2.0094 2.2204-2.4794.2 7294..2.97-94: 3;2294 3.4794.3.7294*1.054' .1294 1.74": 2.3 3.02: 3.72: 4.62 5.62-67.92 9.21 1.1I55.1.405: 1.9:2;5 3.25 4:.4.93 5.9.7.7.1 8.33: 9.66 4. .14 10.161 11.08 Ads by Google MIT Engineering MS + MBA Dual Graduate degrees in 24 months 6ýmth Internship.

Fellowships Avail -LGO.MIT.edu N3 Stainless Steel Screw Distributor of Stainless Steel Screws. Order Online Today! -www.FordFasteners.com Bolts, Nuts, and Tools You Want It, We Got It! #1 In Customer Service -B01tsNutsandTools.com Iap sanLd Me 100,000 In stock specials, metric, hard to find -WWwihoIesawsuniimlteci.om Hare Memhershl About Us privacy icmer Adverse Copyright Q 2012 eFunda, Inc.http://www.efp 4:15:32 PM]MPR-3812, Revision 3 r.nrrPmnnndPnr.P.

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• RR-1-17.C-395 CD 0 a C. 0 m 30 CD-C.C2 co m K- 0 0 0 -u-C/)CA C)2 C)-Io Ul Sheet 1 of 2 Status: C N U Seismic Walkdown Checklist (SWC)Equipment ID No. AO-33-0241D Equip. Class 1 2 (07) Fluid (Air/Hyd)

Valves Equipment Description ESW Outlet Block Valve from Diesel Generator E4 Coolers Location:

Bldg. Diesel Generator Floor El. 127 Room, Area D/G-9 Location:

Bldg. Diesel Generator Floor El. 127 Room, Area D/G-9 Building Manufacturer, Model, Etc. (optional but recommended)

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.

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

2. Is the anchorage free of bent, broken, missing or loose hardware?3. Is the anchorage free of corrosion that is more than mild surface oxidation?

YEI ýY/NO UEJ N/A:.Y0/ND UO N/ADl 4. Is the anchorage free of visible cracks in the concrete near the anchors? YI NO UE" N/AE.4~IJC16Z~b~T S LLIML .~L~l 'J'LC~ i- ~AII4g TO CRe~Ioi- EIel?CoNlowrr;5. Is the anchorage configuration consistent with plant documentation?(Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?-Soo, O+t 3 oIeJ (Wvol oo 'E or ac 4 a YE NOI UO N/AX/Yý(N U-]er, A en+Onc"Om~e'Br- 0'1(- QLr 1 2 Enter the equipment class name from Appendix B: Classes of Equipment.,C-3 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 , rrp.nnnripnmrf Nn ' R.R-19-173 C-398 Sheet 2 of 2 Equipment ID No. AO-33-0241D Equip. Class" 2 (07) Fluid (Air/Hyd)

Valves Equipment Description ESW Outlet Block Valve from Diesel Generator E4 Coolers Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?UD N/AD 8. Are overhead equipment, distribution systems, ceiling tiles and lighting, YE'NU UL- N/AU 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?YdND UD N/AU-YC9'NQ U[1 Other Adverse Conditions

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

Comments (Additional pages may be added as necessary)

A-!A Evaluated by: Evauatdlb:

oDte q)2 q 1 2M< C-4 )Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 flnrrP..nnndPnr'i Nn

• RR-19-17.A C-399 AO-3'3- 01~,qIP Purpose The lateral stiffnesses of the vertical support (two structural angles) attached to the operator of Air-Operated Valve AO-0-33-0241 D and the pipe support (square structural tubing) attached downstream of the valve at the pipe elbow are calculated.

The lateral stiffnesses of the supports are compared to help judge whether the valve being supported at two different locations (the diesel room wall and the top of the diesel engine base frame) could potentially cause damage to the valve during a seismic event.Data hangle 7ft Langl: 3in tangle 0.25in Lbox. I 6in Lbox.2 4in tbox := 0.25in hbox.l 3.5ft hbox.2 2ft angle: 1.23in4 Ibox.1 30.3in Ibox.2 8.22in4 Est =29 x 106psi Height of angle support above base frame top surface (from walkdown)Length of angle leg (from walkdown)Thickness of angle (from walkdown)Approximate width of horizontal section of pipe support (square cross-section) (from walkdown)Approximate width of vertical section of pipe support (square cross-section) (from walkdown)Thickness of pipe supports (square cross-section).

This is a conservative estimate.Length of horizontal section of pipe suppol (from walkdown)Length of vertical section of pipe support (from walkdown)3 x 3 x 1/4 Angle area moment of inertia;AISC Shapes Database v14.0 6 x 6 x 1/4 Square tubing area moment of inertia; AISC Shapes Database v14.0 Historic 4 x 4 x 1/4 Square tubing area moment of inertia; AISC Shapes Database v14.0 Historic Elastic modulus of carbon steel, typical value.Stiffness Calculations 3

• Est, Iangle kange- 3 hangle lbf kangie = 180.545 inf in Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3.nrrqnnndPnr,-

Mn

• R.-19-171 C-400 3 Est" 'box.I kboxl .hbox. 1 3 Est" Ibox.2 kbox.2 3 hbox.23 kbox.1

• kbox.2 kbox.l + kbox.2 kbox= 58 2 kangle Conclusions kbox.1 = 3.558 x 10 4Ib-.f in kbox.2 = 5.173 x 1 4bf in= 4 lbf kboX= 2.108x 10 in Note that angle stiffness is multiplied by two since there are two supports.The lateral stiffness of the pipe support is an order of magnitude stiffer than the support at the valve operator.

Thus, if there is any differential motion between the wall of the diesel room and the diesel engine base frame during a seismic event, the support at the valve operator will easily displace without imparting significant load to the valve operator.

Additionally, a structural joint was not observed between the floor of the diesel room and the wall of the diesel room so any differential displacement between these two locations will be very small. The diesel engine baseframe is securely attached to the floor, and the base frame is very stiff, so the top of the base frame (where the operator support is anchored) should displace with the floor.Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 C-401 rlnrrP.nnndrnr.e Nn" RS-19-17.1

~'(D z UK E;Lco m I.0 6 C:O W 6 C?)CL a)EU 0 C2 Cl 0'E -C, 0'Cq~C

/Sheet 1 of 2 Status:0 N U Seismic Walkdown Checklist (SWC)Equipment ID No. N a "'- " Equip. Class 1" (08a) Motor Operated Valves Equipment Description ESW Return to Discharge Pond Location:

Bldg. Diesel Generator Floor El. .1/2-P- t" 11/2- Room, Area D/G-2 Buildinge 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 L1 Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)?

2, Is the anchorage free of bent, broken, missing or loose hardware?YO NN YP NO U NlAM0 N/A(-4 HIO 3, Is the anchorage free of corrosion that is more than mild surface oxidation?

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

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

YX NO UE]M0o NAl/e 121Q Yg NEI UEJ YO] NEI UE] N/At@Y&NE] UO 12Enter the equipment class name from Appendix B: Classes of Equipment.

SC-3 )>.Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rnrrmnnnd1nr.P Nn

• RR-19-171 C-404 Sheet 2 of 2 Equipment ID No. MO-33-0498 Equip. Class1 2 (08a) Motor Operated Valves Equipment Description ESW Return to Discharge Pond Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

nlo R-f 2 4-c, rýe, /15 YjK NE UD N/AD 8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Y[! NE UL N/AHl and masonry block walls not likely to collapse onto the equipment?-Tere. c-g ne t n f(i~d4 Atu tuvrl ts. vkA. -jo &'a.-() A;fs orcw bir k(-9. Do attached lines have adequate flexibility to avoid damage? Y[9 NHi UD N/A[2 10. Based on the above seismic interaction evaluations, is equipment free YRI NE UH of potentially adverse seismic interaction effects?Other Adverse Conditions

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

Comments (Additional pages may be added as necessary)

--A0 -Ao oxqli4c , ~ V' v iS Pf-efrvtf Atbverki 'ad ý OoJe-.Evaluated by: /c5-74bc6__

V Date: _/2__ _ _ _-< C-4 A>Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 (nrrP..qnnndrPnr.-.

Nn

• PR-19-171 C-405

-~0 0 Cl, 0 m 30 CD 0 6 C!O A,, 00

u1=r~3 z 03 3 0 0 c m-3 CD 0 C.0 D0.00 Sheet 1 of 2 Status

(, N U Seismic Walkdown Checklist (SWC)Equipment ID No. MO-48-0501A Equip. Class" 2 (08a) Motor Operated Valves Equipment Description ESWA Inlet to ECT Reservoir Location:

Bldg. Emergenc Floor El. 114 Room, Area ECT-1 Cooling Towers Manufacturer, Model, Etc. (optional but recommended)

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?3. Is the anchorage free of corrosion that is more than mild surface oxidation?

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

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

YO N~r Y[CI NEI U[ N/AU YY NEI UE! N/AD Yo NEI UO N/AO YE! NE! UO N/Aj Yba NEI UU 12 Enter the equipment class name from Appendix B: Classes of Equipment.

<C-3 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3'.nrrmmnnnr1lnr.P Nn RR-12-173 C-408 Sheet 2 of 2 Equipment ID No. MO-48-0501A Equip. Class'2 (08a) Motor Operated Valves Equipment Description ESWA Inlet to ECT Reservoir Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

YP N] UI] N/A[J AJo 5o 1-8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Y)jR NLJ UEI N/AI.and masonry block walls not lik collapse onto the equipment?

C-0 1 r ra-4blea fit f ~~ti1 -W 5--~f~ 4 cars 9. Do attached lines have adequate flexibility to avoid damage? Y[ NEI UO N/AI.10. Based on the above seismic interaction evaluations, is equipment free YýQ NO UO of potentially adverse seismic interaction effects?Other Adverse Conditions

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

Comments (Additional pages may be added as necessary)

Evaluated by: V Date: g./21/L-C-;2~' /.1.<C-4>Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 r.nrrP.nnndPnr..

Nn* RR-19-17.C-409 V. 0~CD z -: 0 m 30 CD 0 00 0 0n C) j3! 0 3~g~>(A 3 'm 30 CD 0 00 cxn Sheet 1 of 2 Status:O N U Seismic Walkdown Checklist (SWC)Equipment ID No..-______OZT -L Equip. Class" 2 (10) Air Handlers"~jl iL~~f n ,n , .,OV,-i-,it , ,- R91.M.l, " ,VaIf K. " 1A"ma tia I l&4 div. a Location:

Bldg. Diesel Generator Floor El. 151 Room, Area DIG-19 Building Manufacturer, Model, Etc. (optional but recommended)

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?3. Is the anchorage free of corrosion that is more than mild surface oxidation?

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

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

I JNJ'4 YdNEI UD N/AD Y['NII UE-' N/A~l YE'NEI UE N/AE[YEI NEI UE' N/Ak Y)ýNEI ULI'2 Enter the equipment class name from Appendix B: Classes of Equipment.

<C-3 )0 Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 CrnrrP..nnndPnr.P Nn " RR -17.1 C-412 Sheet 2 of 2 Equipment ID.No.entP No I Equip. Class'2 (10) Air Handlers Equipment Description Master for EI'EDG Building Vent Supply Fan Outside Air Damper Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

YN UEn N/AEI 8. Are overhead equipment, distribution systems, ceiling tiles and lighting, YEINQJ U-] N/A[]and masonry block walls not likely to collapse onto the equipment?

W~O OazP~7o C&LuPA4wr 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?Y['NI-I ULI N/AU YO"N UO Other Adverse Conditions

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

Comments (Additional pages may be added as necessary)

NI!Evaluated by: OW Is4i~k Date: AzX qj'? 12-01-L-- " --1 Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Nn

• RR-19-171 C-413

.- 0* 0 0 3n 0) -0 , m 3 CD 0 0-n 0 0 6 C)

C-0 0;03 z m-o CD.5.0 6 0 NJ 4 K!6 Sheet 1 of 2 Status: f9)N U Seismic Walkdown Checklist (SWC)p o-0-qoF-00Z

':2z- oz tl Equipment ID No. --QQ 2-y Equip. Class" 2 (10) Air Handlers Thninmrne'nt fl -rmntinn M'n.vtpr fnr RP'Rl)GRuildincr V~nt ,nnlv )%n RMturn Air lnnnp...L Location:

Bldg. Diesel Generator Floor El. 151 Room, Area D/G-19 Building Manufacturer, Model, Etc. (optional but recommended)

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

Additional space is provided att the end of this checklist for documenting other comments.Anchorage 1. Is the anchorage configuration verification required (i.e., is the item one of the 50% of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?3. Is the anchorage free of corrosion that is more than mild surface oxidation?

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

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

YO YIE'NO UO N/AO Y[(N- UL N/A]YI?(NE UD N/AO YEI NEI UD N/Ag YX NO UO 12 Enter the equipment class name from Appendix B: Classes of Equipment.

"(C-3 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 r.nrrP--nnndP~nrP. RR-19-17R C-416 Sheet 2 of 2 po-oO-qF-OM77-0-o 001-0 ~~2,3yiC/21 2-.Equipment ID No. P-jQ&QZV2=

Equip. Class 1 2 (10) Air Handlers Equipment Description Master for E."EDG Building Vent Supply Fan Return Air Damper Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

t d SFr r4V4ar -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?YEI'NE] urn N/AO.YIE1'NO UD N/AD Y["NE] UD N/AD YOfl] UOr Other Adverse Conditions

11. Have you looked for and found no other seismic conditions that could Y[YNU1 Ul-adversely affect the safety functions of the equipment?

Comments (Additional pages may be added as necessary)

N/A Evaluated by: 6~4 Date: k ?i&91li 1zoiz ,- j,<CA4>Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Nn -R,- 9-117.C-417 0 3 C.T, 0* C: mn r-i°2 0 0'11 0 0 0 Sheet 1 of 2 Status:.)

N U Seismic Walkdown Checklist (SWC)Equipment ID No. TCV 52E 7239 A Equip. Class 1 2 (07) Fluid (Air/Hyd)

Valves Equipment Description DIG Jacket Coolant 3-Way Thermostatic Control Valve Location:

Bldg. Diesel Generator Floor El. 127 Room, Area DIG-3 Building 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 YO Nt of the 50% of SWEL items requiring such verification)?

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? " 'YMJ NEI UD N/AE Y95 NE] UD N/AOl 4. Is the anchorage free of visible cracks in the concrete near the anchors? YE NEI UO N/A[Avi4ioraed I-P0 OA6-374P Cl 0/6- n cd- a (ooo/,q.'e ole- -5. Is the anchorage configuration consistent with plant documentation?(Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

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

YE NEI U- N/An.YR NO UD 12 Enter the equipment class name from Appendix B: Classes of Equipment.

<C-3 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rnrrPýnnnHAnr.nr Nn ' RR-1 -17.C-419 Sheet 2 of 2-1 C- o- P-E -7Z39' A Equipment ID No. TV 52E 7239A Equip. Class 1 2 (07) Fluid (Air/Hyd)

Valves Equipment Description DIG Jacket Coolant 3-Way Thermostatic Control Valve Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

Y% NO" U'- N/AD 8. Are overhead equipment, distribution systems, ceiling tiles and lighting, Yo NO U-. N/AO.and masonry block walls not likely to collapse onto the equipment?

9., Do attached lines have adequate flexibility to avoid damage? Yo NOt UI' N/Al]10. Based on the above seismic interaction evaluations, is equipment free YX NE) U .-of potentially adverse seismic interaction effects?Other Adverse Conditions

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

Comments (Additional pages may be added as necessary)

Evaluated by: axle Date: 145 ,'12-C-4 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rCnrrmnnndPnr.P Nn

• RR-1 9-171 C-420

-. 0 23 to m a C 2 (D 5-I C)0 CT'r~3 rn-I r,~3 Co She 1 of 2 Status() N U Seismic Walkdown Checklist (SWC)Equipment ID 0(oO 7D Equip. ClasSl2C i9) re&,ot.,Akl, !re-f~,p-c Equipment Description E'-/ / -"e.' , ei 5 Location:

Bldg. Jf bLy- FloorEl. Room, Area Manufacturer, Model, Etc. (optional but recommenaea)

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 verifigation)?

2. Is the anchorage free of bent, broken, missing or loose hardware?3. Is the anchorage free of corrosion that is more than mild surface oxidation?

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

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

YE] NJ YqNEI UEJ N/AO YtN1NEI UO N/AEI NEI UE] N/AE]YFI NEI U-I N/AV YX NEI UI-12 Enter the equipment class name from Appendix B: Classes of Equipment.

<C-3 >'Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Nn " RR-19-17." C-422 Sheet 2 of 2 Equipment ID No. '- 5--,O 7 Equip. Class'1 2 & "%' -A Equipment Description

/"i c/6.r-- k'"?- Le,- -,',z/" e -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?YM NE UL N/AD YM NEI UI' N/AD YTS NE UM N/ADI YEE ND UE Other Adverse Conditions

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

Comments (Additional pages may be added as necessary)

Evaluated by: d~ 2~2-Date: / !/// ?-A'< C-4 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rnrrP.qnnndPnr.P Nn

• RR-19-171 C-423

-.0 3* 0~,-0 0 m 30 CD co 0 0 D Area Walk-By Checklists (AWCs)Below are the names and signatures of the personnel who performed the area walk-bys.Ben Frazier Kevin Gantz Mojtaba Oghbaei Craig Swanner James Wiggin)c~ ~,i. qhba~Caroline Schlaseman The order of the Area Walk-By Checklists (AWC) for Unit 3 is shown in Table D-1 below and the order of the AWCs for Unit 0 (common) is shown in Table D-2.Note: Photos for the AWCs are included in the base component SWC in Appendix C.Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.: RS-12-173 D-1 Table D-1. Unit 3 Area Walk-By Checklists (AWCs)AWC- Building Elevation Location Component Ux-YY ID U3-1 Turbine 135 T3-172 3DD03 U3-2 Turbine 135 T3-74 30D37 U3-3 Pump Structure 112 P/H-9 P030223-4 U3-4 Reactor 88 R3-15 30C87 U3-5 Turbine 135 T3-171 30X133 U3-6 Reactor 91 R3-11 LS3-23-91A U3-7 Reactor 165 R3-40 3AC65 U3-8 Reactor 88 R3-13 30P033, 30P038 U3-9 Turbine 135 T3-170 3CD03 U3-10 Turbine 135 T3-169 3DD01 U3-11 Reactor 88 R3-9 3AP037 30P036 &U3-12 Reactor 88 R3-14 30P036 30S038 U3-13 Reactor 135 R3-22 A03-03-33 U3-14 Reactor 135 R3-29 30Y35 U3-15 Turbine 135 Recirc mg 30B324 set room U3-16 Reactor 91 R3-5 3AP035 U3-17 Reactor 116 R3-5 3AE058 U3-18 Reactor 91 R3-7 M03-10-013C U3-19 Reactor 116 R3-17 3CE24 U3-20 Reactor 116 R3-21 PT-5805 U3-21 Turbine 135 T3-70 3CD001 U3-22 Turbine 150 T3-81 30Y050 U3-23 Reactor 165 R3-1116 30X030 U3-24 Reactor 165 R3-41 30X033 MO3-30-U3-25 Screen House 116 S/H-4 3233A 3233A Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.: RS-12-173 D-2 m,9 d- a5--/Sheet 1 of 2 U Area Walk-By Checklist (AWC)Location:

Bldg.. A -Flor ' Eli .I Room, Area 1 3 T3 -Instructions for Completing Checklist This clhecklist 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)?

.... .-*....NO UO N/AO..2.Does anchorage of equipment in the area appear to be free of significant Yb$ NO, UO N/A .degradedc6nditions?

." 2, 3.Based on a visual inspection from the floor, do the cable/conduit-raceways -and HVAC ducting appearto be~free of potentially-adverse seismicn o6nditio6ns (e.g.; condition ofsupports is adequate and fill conditions of ca! le 'trays applI earto be inside acceptable limits)?YX NEI UO N/AE.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)?-OPM eno~ oi Ve '6i "1V0 1 C YO NX UO N/AOA, ImA 'ý 4P CXO5~V 1 3 If the room in which the SWEL item is locateddis 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.SC-5 >" Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 D-3 (rnrrP.nnnrlPnr.p Nn -RR-1 9-171 Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. .-UneL'... Fioor El. V3 S Room,' Aea 1 3--5. Does it appear that the area is free of potentially adverse seismic Yg NO UD N/AD interactions that could cause flooding or spray in the area?.*Iueel. -': 51 " " ( : ' ) --6. Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?Y' NO UO N/AD 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)?

4e ~'X NO UD N/AD'8. Have you looked for and found.noother seismic.cpnditions that could Yb NE adversely affect the safety functions of the equipment-in the area?S9o,4 " w No.5 40 -O)-1) 171 -19' a,-e. ,, y 'AA 5 ec-+w4ýn No. iM -1. Rev I JUo P 6 5 Comments.(Additional pages may be addedv asn6cessarýy).Oetl -hook cJ;4n *ore~,i If~#oIL~~B~5 Evaluated by: (9ZJA"4-tq.~Date: L, f,20/Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 (.nrrP'nnndPnr.P Nn -RA9-1-7T D-4 Sheet 1 of 2 Status:K)

N U Area Walk-By Checklist (AWC).Location:

Bldg. TuchAnk..

FloorEl. _ _5 _ Room, Area" T),- 94 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 ofjudgmnents 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 )X NO UO N/A. ., potentially adverse seismic conditions (if visible without necessarily opening

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

.,,.: Y)J NO Ui N/A ....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 cdnditions (e.g., condition of support, §is adequitedand-fill"'conditions of cable trays appear tobe inside acceptable.limits)?:

Sc~I a4kx4ce- CowJ 6 4'rays) W~ oil ry 4. Does it appear that the area is free of potentially adverse seisniic spatia interactions with other equipment in he area (e.g., ceiling tiles and lighting)?

YNO UD N/AD-1 Y NEIUO N/AOl oT;.1 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.<C-5 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 D-5 rnrrPmnnndP.nr.'.

Inn

• RS-19-171 AWC-U3 -7.Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. _,4 'Thc FloorEl. 135 Room, Area 1 3 7-5. Does it appear that the area is free of potentially adverse seismic YrI NA UEI N/AD interactions that could cause flooding or spray in the area?z~w -W ' I. P. V dobt-r 404lck-er-a 4 S/j r' (q f4~1 O XG. P.' j eev0t.6. Does it appear that the area is free of potentially adverse seismic NDI UE1 N/A"I!interactions that could cause a fire in the area?'A-7. Does it appear that the area is free of potentially adverse seismic Y; ND UD interactions associated with housekeeping practices, storage of portable equipment,-

and temporary.

installations (e.g., scaffolding, lead shielding)?

N/ArD1,1 :..i 8. Have you looked for and found no'other seismic.ce qonditions that could YX NEI UE .',, , adversely affect the safety functions of the equipment in the-area?

.Comments (Additional pages may be added as necessarY)

• g~k Pipfe clamp ",rIJA , n~ e .,M60 Evaluated by:, i2~Date: O /.2 v,-z91 20, I_'Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 (.nrrPqnnndimnrp.

Nn R D-6

//1/ 1j G-- L45 _>".Sheet 1 of 2 U Area Walk-By Checklist (AWC)Location:

Bldg.? vloor El. .. Room, Area 1 3 " iI -', 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)?

Y) NE UD N/AJ 2. Does anchorage of equipment in the area appear to be free of significant NO UO N/AO degraded conditions?

I r_) O tj4$V cts61a 64c " p or, ~'fU1f A 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)?UO N/AEI Ylq NO UD N/AD 13 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.<C-5 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 D-7 rnrrp..nnnHPnrP Nn

• R5 -1T-17A ShWee -2 fj Sheet 2 of 2 Area Walk-By Checklist (AWC)Location: A 0e&Fltor 1 E1. JD .Room, Area'3 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)?

YX ND UD N/AD Y) NO UD N/AlNO UD N/Al 8. Have you looked for and found no" other seismic conditions that could YX NEI U" adversely affect the safety functions of the equipment in the area?Comments (Additional pages may be added as necessary)

N//A Evaluated by: (,6w Date: __________

,?[Zq1Vj7_

Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 flnrrP.nnndP.nr.P Nn

• RR-19-173 D-8 A'Je- 60S-K Sheet 1 of 2 Status/ N U Area Walk-By Checklist (AWC)Location:-

Bldg. Floor El. > Room, Area" j? " 5 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 ofjudgments 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 YX NO UOI N/AO potentially adverse seismic conditions (if visible without necessarily

-openingCabinets)?, .. -2. Does anchorage of equipment in the area appear to be free of significant degraded onditions?

3. Based on a visual. inspection from the floor, do the cable/conduit raceways and HVACducting-appear to-be-free of potentially adverse--.seismic cinditions'(e.g., condition 6f~suppbrts is adequate and fill conditions of cable~trays appear to be inside acceptable limits)?YNINO UQ N/AO'N% NO UD N/AO 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)?

Yk(NE Un1 N/AO .1 3 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.< C-5 )Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 r-nrrP.nnndP.nr-.p Nn

• RR-19-171 D-9 AVIC-U 3 -4 Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. & 6..: Floor El. 4M Room, Aread 3 " 5. Does it appear that the area is free of potentially adverse seismic ND UD N/AQ interactions that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic YJ NO UO N/AC interactions that could cause a fire in the area?7. Does it appear that the area is free of potentially adverse seismic YX NO UO N/AD , interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shieldilag)?

8. Have you looked for and found no otheriseismic conditions that could adversely affect the safety finctions ofthe, equipment in the'area?)KNEI UO Comments (Additional pages may. lie added as necessary)

NIA Evaluated by: -Date:~bO(mi -~-Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 r.nrrP..qnnndrnnpJ Nn RRA-19-171 D-10 RtoaC -(A 3--5 Sheet I of 2 Status: N U Area Walk-By Checklist (AWC)Location:

Bldg. "or6-X Floor El. I1 ' Room, Area" T3 I l I 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)?

NO UQ N/AO 2. Does anchorage of equipment in the area appear to be free of significant YV' NO degraded conditions?

-UO N/A " ! .., . .' ,. J'3. Based on a visual inspection from the floor, do the cable/conduit raceways andHVAC ductimg appear to be free of-potentially adverse seismic coiditions (e.g.,cbndition of supports is adequate and fill-c biditions:of Cable trays appear to be inside acceptable limits)?'Y NO UO N/AO 4. Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

YN-NO UQ N/AO 13 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.<C-5 >, Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 D-11.nrrpqnnnd1Pnr.P Nn

• R5-19-17.1 Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. T Floor El. 1. -i. Room, Area'" : L .5. Does it appear that the area is free of potentially adverse seismic interaction$

that could cause flooding or spray in the area?1 --No...-v...10

• NE UO N/AQ I (T.Oe 4 Aof Y4w`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 temporaxy installations (e.g., scaffolding, lead shielding)?

j Noc 4ept" or e~oW~~t t' mo YXNO UQ N/AO: YX'NO UO N/AI: 8. Have you looked for and found no othe~r seismic conditions that could adversely affect the safety functions of the equipment in tele are4?, ,1. 1i-401) Rev.I VI e2t bI. W 4 4 we-~t 4-a amv~ 556,s 4~YX NEI 'JO per fPISAPS~f~eeA~ ~rV~box :1)L4I3 :c I Comments (Additional pages may be~added as'n~cessary)

NAl/Evaluated by: 9aens LIK&y441 Date: m 4ZL i14IA~L~Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3.nrrP..nnndP*nr.P Nn

• RR-19-173 D-12

,¢wlc -1A -V/, Sheet 1 of 2 Status: C N U Area Walk-By Checklist (AWC)Location:

Bldg. fc'ir FloorEl. q3L Room, Area 1 3-1 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 ofjudgments 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" bpening cabinets)?

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

3. Based on a visual inspection from the floor, do the cable/conduit raceways and HVAC ducting appear to be free of potentially adverse seismiiic

`onditions (e.g., condition of supports is adequate and fill co. .inditions-of cable trays appear to be inside acceptable limits)?YVNEI UD" N/ADT, YeNF- UEI N/A,;-.24NEI U- N/AD .4. Does it appear that the area is free of potentially.

adverse seismic spatial .F ND UD N/ADI interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

13 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.Cý5 >" Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 D-13 CnrrP.qnnndPnr-.p Nn

• RR-19-17.1 AWC --V? -6 Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. -- Floor El. IL Room, Area'3-11 :11 5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?YXd ND UD N/AD 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 isfree of potentially adverse seismic interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

Y.0 NO UO Y)KNO UO N/A-N/AO 2.. ..-.: 8. Have you looked for and found no.other seismic conditions that could adversely affect the safety functions of the equipment in the area?YVNEIUO Comments (Additional pages may beadded as necessiry)

AJ/-/A::,.

". ...41~6~m Evaluated by: Date:~/W Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Cnrrmnnndrnr.P Nn -RR-19-171 D-14.

/ýw C -Wi- 'r Sheet 1 of 2 Status: 6 N U Area Walk-By Checklist (AWC)Location:

Bldg. FloorEl. 1 RoomArea"3 L." -Instructionsfor Completing Checklist Thischecklist 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 Yf NO UD N/A -potentially adverse seismic conditions (if visible without necessarily UC N/AC fopening cabinets)?

""-.Looee Lover ran'l -I '°"a aorw 0 C ...SOW oneW A4W 614 (-)qWf) w"I 1 oiwv~ 6a~ pcwl m~kc'n-SMA46 ADRcS5 b 1V TR-a N29-73-7, 1( 011/J-z 2. Does anchorage of equipment in the% area appear to be free of significant degrAded.1onditions?

...YX NO UC N/A,..3. Based on a visual inspection from the floor, do the cable/conduit

........". raceways and;HVAC ducting -appear- to be free of potentially adverse.seismiic (e.g.,. condition, of supports is adequate and fill-'-conditions of cable trays appear to be inside acceptable limits)?YK NO O N/AO 4. Does it appear that the area is free of potentially adverse seismic spatial Y& NC UC interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

LHO 4 5A1O.-JO 5AJ N/AC per pBgp~S --z4-%vn N16. /14-401~l)

Peov,.V,4 -1v oreo Temre'oy st .Jo 6i\,TC, L)80 4& 01 4-0 6r000 I eovy. ý 0,C 13 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.<C-5 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 D-15 rnrr.nnndine.

Nn

• R5-19-17.1 WP -I Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. A wc' c 'Floor<El.

iiL..Room, xea13 ? -0 5. Does it appear that the area is free of potentially adverse seismic ta' NE UD N/AD interactions that could cause flooding or spray in the area? .VNc,~o VV~ c~be w ~f ~uIn5 ol IP 44ja1*er 6. Does it appear that-the area is free ofpotentially adverse seismic interactions that could cause a fire in the area?4('NO1UO N/AO.7.Does it appear that the. area is free of potentially adverse seismic YI'NO Ur N/AD interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?.Tfo AA and 6 M&Ao wt 4 0W.sv'IekJw~

8. Have you looked for and found no .oth~er seismic conditions that could adversely affect the safety functions of the equipment in the area?, NO U-A.Commeehts (Additional.

pages may be added, as neiessarý)

Iv/A Evaluated by:&w<wlr 6'Date: __________

1atut20 Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rnrrPnnnrdInr.P ln

• RRA-171 D-16 Sheet 1 of 2 Status: & N U Area Walk-By Checklist (AWC)Location:

Bldg. `.FloorEl.

'goo Room, Area 1 3 R-* Instructions for Completing.Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWELitems.

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 YX NO U- N/AD..potentially adverse seismic conditions (if visible without necessarily to 1t0o_2o *, ,.opening cabinets)?

' "".6 A-9141) .eq r pp alo*m , 6t oshuJ4" Ceti 1 "or,~V W",tv010f' ow, AAl1e o 05 0 n O aV. o J 4d OCe406W. CO~~~i~ 4flOnav 2. 4OCr)4tkft 1SrrktC Al Dt e rJ 1 Z r 1 V b' *t1j,fg* I( a/Doe anhorge f euipentin, the area appear tbefr-ee of significant.

Y) NO UO N/AC-degraded conditions?

3. Based' on avisual inspection from the floor, do the cable/conduit raceways, and HVAC ducting appear to be freeof potentially adverse seismi6 conditions (e.g., condition of supports is adequate and fill-conditi;nis of cable trays appear to be inside acceptable limits)?.Y)4 NO UlO N/AC 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)?

YV NEI UQ N/AC .1 3 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.<C-5 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 D-17 C'nrrPnnndrnrP.

Nn

• RR-19-17.T Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. V Floor El. _9 _9 Room, Area'3 R -13 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 h fire in the area?.Y)Qi"ND UD N/AQ Y* NO UD N/AO 7. Does it appear that the area is free ofpotentially adverse seismic interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shield* 4. ....d 4 0. p, YXNO UD N/A .., 8. Have you looked for and foud no' other seismic conditions that could X ND U" adversely affect the safety functions of the equipment in the area?... ', Comments (Additionýl pages may be'added as necessa), ... ." " , N~JIA Evaluated by:~r4qi~Date: Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3.nrrsAmnnnrIPnr.P.

Nn

• RR-1 9-17.D-18

/"JC- d5 -9 Sheet 1 of 2 Status:&ý9 N U Area Walk-By Checklist (AWC)Location:

Bldg. _______ Floor El. A Room, Area 1 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 .YK ND UD N/AC- .potentially adverse seismic conditions (if visible without necessarily

• ..:. z .:opening cabinets)?'

.2. Does anchorage of equipment in the area appear to be free of significant NO UD N/An ,: de~graded-conditioins?

.'- ... ....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 supports is adequate and fill conditions 6f 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)?

N UNOU N/A-Y( NE UO N/A.13 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.< C-5 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 D-19.orrPqnondnrn.

Nn

• RR-19-17.

Awc q Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg.TjrVy4' FloorEl. 13 5 Room, _AeaM T3 -10 5. Does it appear that the area is free: of potentially adverse seismic Yo ND UD N/AD interactions that could cause flooding or spra inthe area?:" 'T, A lb .r,. o4" (dr er OC.No. : SS) ~vI 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)?

Yy NO UD N/AD1 YVND Ur N/AD 8. Have you looked for and found no0other seismic conditions, that.,could YX NO UDI adversely affect the safety functions of the equipment inthe area?, PD'AF5 Spml : Mo M- 70l1 Rev.P .Comments(Additional pages may be added as neces'saty)" IA Evaluated by: a n(e Date:ý20_ -gVi26/26zn Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rnrrPqnnndInrý.

Nn

• RR-19-17.1 D-20 A4tkc- W:5-/6 Sheet 1 of 2 Status: N U Area Walk-By Checklist (AWC)Location:

Bldg. TiiU4[$i 'Floor El. S Room, Area 1 3 T 3- I W Instructionsfor 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 ofjudgments 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 .A NO UI! N/AI:1_J.potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant Y[' NO Ul- N/A!]degraded conditions?

.3. Based on a visual inspection from the floor, do the cable/conduit YX. NO- U!- N/A!]raceways and HAC ducting appearto be. free of potentially adverse seisnic conditiong'(e.g., condition of supports is adequate and fll ". -conditions of cable trays appear to be inside acce table limits)?a '\ c d olo low, " " .ue 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)?

YA N!] UI- N/A[]13 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.< C-5 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 D-21 rlnrrPqnnndPnr.A Mn R-19_173 AWe-eu 2 o Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg.. Turbnc' FloOr El. f Room, Area 1 3.T3 -10 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)?

NO 4wA"b orfpjy e'pmeANO UO N/AD YbeNI UD N/A.Yg NO U] N/AD o 8. Have.you looked forland fouidno.onther seismicoconditionsthat could YX UEO ..,.rslY -t the safety functions of the-e'quipment in thearea?POAP5 A/c f Il-r'J ) I*ev, Comments (Additional pages may be added as nec-ssary)

.AeeA Ic Date: DJ2L Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 r.nrrp'-nnndinr.P Nn

• RR-19-173 D-22 Status: g N U Area Walk-By Checklist (AWC)Location:

Bldg. Floor El. I Room, Area" 13 : -CJ linstructions for Completing Checklist.

'This checklistimay 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 ofjudgments.and, findings.

-,.Additional space is provided at the end of this checklist for documenting other comments.I. Does anchorage of equipment in the area appear. to be free of YX NOi UC N/AC.. ..potentially adverse seismic conditions (if visible without necessarily.

opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant YpNO U[3 N/AC dgrAd ,onditions?

3. Based on a visual inspection from the floor, do the cable/conduit

-.raceways-and HVAC ducting appear tobe freeof potentially adverse'eismic**co6nnditinsdition of supports is adequate and fill Scon'ditions of ýableltrays 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)?, e .t &.J -* N .4 i)NO UC N/AC -r'ND UO N/AC Iq11<O. non- sw kl;ekanw.e. W11 Qvi ro I&IVJ n 0 Coverel AL c4-TI~D -a>VO V rk-1 3 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.< C-5 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 D-23 (TnrrPnnndPnr-.P Nn "

AWC-u3- it Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. &tM " Floor El. L ,Ro:om, Area1 3 ft " 5.Does it appear that the-area is.free of potentially adverse seismic interactions.that could cause flooding or spray in the area?Yg NO UO N/AO 6. Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?Y'X NO UO N/A , 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)?

-NV 4 f~y oreOebt eQ1m7 Yý(NO UO N/AO I .8. Have you looked.for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?,-Yý(NO UO Comments (Addiiional.pages'may be added as necessiry)

.:. , : .... '. " " : ".. :., NV/A Evaluated by:-a Date: q~/folJAl Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rnrrPqnnnrIinr,.P Nn

• MR-19-17R D-24 Area WlkB Chckist,(W)

Location:.

Bidg"_____

F.,rE Room; "Area" R-'I Thischecklist iiay be used to docu7ntthe reslt oWtý&re Walk-By' ner`eoJ oe WLies h spacebeo-,19w .each of the -followin~g ,qusinm be sdt record esis o jiigr e Is an d fnig.Adiftioa~pc isrovid a tendof this-checkitfrdcmnig te oiet.:-d~oextl1

&ýd:es~iii fni n (if viPl Nihu'eesrl El, Aviil6 it6 lhc , e 19 sap bq- .Dosanchorage of.'equip entin tjhe area appeartob fr6fsgiin 3.Based'on.

a visual ispedtion from the floor,'d the cablecodut-raceways and-HVAC ductIng appear-tobeý,.

fre-e ofpqteptiallyq averse~ onhiios f ~bleK tiysapar tob nieace-ptable limii )X~NO UON/A-.4:'Y%-NO 15!-, NAl]`NA......Y~NQUQ~N/

1.012-4. Does, it apertatteris feeb of pot Ientially 4adverse seisiic spatia intracion itoher equipmentin h area (egcelnliIsac 60ighing)AJQ.~'ilO1 ev. I-If~heroom w~hjch the SWEsIvtemee',sl ocat earea elcted shouldb c-d~cribed.'T6i selected area shoiildbe baue4, on judgmient ec.,o the oder, of about 351effoth1WL en Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision-3'" D-25 r.nrrPmnnnidnrn.

No.- RR-19AA7.

Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. ba'k Floor El. -fit Room, Areae3 5. Does it appear that the area is free ofpotentially adverse seismic interactions that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?7.. Does it appear that the area is free of potentially adverse seismic interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

YX NO UD N/ADND UD N/AD-Y NEI UQ N/A.8. Have you. looked for and found no other seismic conditions that could YJX ND U]adversely affect the safety functions-of the equipment in the area?Comments (Additional pages may be added asnece=ssary)

N/VA Evaluated by: 24m~Date: q Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 r.nrrA~nnndInr.AP Nn -.R-19-173 D-26 Sheet 1 of 2 Status: N U Area Walk-By Checklist (AWC)Location:, Bldg. ...... Floor El.. 1.- Room, Area 1 3./kus 5C-4e. ; ,-J.ah Instiuctions for Completing Checklist.hig 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 resufs of judgments and findings....

Additional space is provided at the end otftbis checklist for documenting other comments.1. Does- anchorage of equipment in the area appear to be free of., Y, NO UI- N/Al ..potentially adverse seismic cOnditions (if visible without necessarily

.-,.opening cabinets)?

.- "° v 2. Does anchorage of equipment in the area appear to be free of significant Y N"I UI- N/Al],degraded conditions? , -3; Based on a visual inspection from the floor,.do the cable/konduit

.-raceways and H-VAC ducting appear to be free-of p0enitially "adverse" " ' eismiconditions (e.g,,condition of supports is adequate andfil conditions of cable trays appear to be inside acceptable li.mits)?.

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 aind lighting)?

.# I o'"Ul] N/Al]Y)6NO. U- N/Al]13 If the roomin which the SWEL item is located is very large (e.g., Turbine Hall), the area selected should.be deskribed.

This selected area should be based on judgmezit, e.g.,on the order of about. 35 feet from the SWEL item.Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 D-27 (hnrrPaqnnnrIPnrP Nn

• RR-19-17t, AWC.--3 -G Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. ' FloorEl. 3._

3 I1/4/' A( i V, ?k;'/ , ,, 5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding .spray injthe area?:: 7/No 'o-e; ; .it 'S' 6., Does it appear that the area is free of potentially adverse seismic interactions that could cause a ffire in the area?Yp!NDl UO N/AO YJ!(NO UON/AO 7. Does it appear that the area is free of potentially adverse seismic yUNO JU interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

f dc.,,t fV' ItLti 4r'%Cý' Al'W,-;apy 05* C 0V& T N/A .8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?Ct;VIJC ,,.eW4+e,..b

.- fa YAND UE -J,"C 4 "ok,-.r2 / 1 V**- b74i f ~Comments (Additiohalpages may be added as necessary)" Evaluated.by:

<C-6 >Date: ../,5" ---.Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 r.nrrqnnndPnr.P Nn

• RR-19-17.D-28

/tVJu -LA:' `/I'Sheet 1 of 2 Status:"L N U Area Walk-By Checklist (AWC)Location:

Bldg. .. Floor El. 1.., Room, iArea,3 vkhlf 3 0 57: Instructidns 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 ofj udgments anýd 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)?

.-. ;,, +0,)" 3 .- YA~NO' UD N/AUI--,.ýrcoq f g3q~4 C /.I.z4e- f , .M /- V ', U 0" 2. Does anchorage of equi ment in the area appear to be free of significant degraded conditions?

juI vler "

T c..P4ý d '0-tO 1P 4A 'A S- , .r" 3. Based on a visual inspection from the floor, do the cable/conduit

.. raceways.

and HVAC ducting appear to-be free-ofpotentially adverse ii.- ,::9eismico6diiditio6s (e.g- ,condition of supp6rts is adequate and fill.. cciiiditioiiiýof cable trays':appear to be inside acceptable limits)?YzI0s UD N/A[O YJNE -U'N/AF.* .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)?

%__* Cl~~'i Y)O NO UD-E N/AQ].1 3 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.<C-5 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 flnrrP_,nnnd~nrPe Nn

• RR-19-17.1 D-29 A-S.--e -ofI" Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:.

Bldg. M, Floor El. ,3" .. Room,- Area'3/' -, 5. Does it appear that the area is free of potentially adverse seismic 'At-NO UD N/AD -interactions that could cause flooding or spray in the area?6. Does it appear thar the area is.free of potentially adyerse seismic , O N JO N/A,.interactions that c6uld cause a fire in the'a'ea?7. Doesjit appear that the area is free of potentially adv ebseismi .i fnteractions associated with housekeeping practices, storage of portable"'quipmenit, and temporary installations*(e.g.

'scaffolding, lead shielding)?

."", YO NND UD N/AD "..r.8. Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?,,.YgNEI UD Comments (Aditi6riaf pages may be added as neeissary)" 1'Evaluated by: Date: )S .Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 flnrrP.nnndrInri.

Nn

• RR-19-17.1 D-30 Sheet 1 of 2 Status:C)

N U Area Walk-By Checklist (AWC)A I Location:

BldZ .135 Room,'Area" 1 1____"___

_/_,___ _ý4__*~r , ;a //h- am " '..Instructions for Completing Checklist This checklist may be used to document the results of the.Are.a Walk-By *near one or more SWEL items. The space below each of the following qu'estions 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)?, '-, Y42-4N UD N/AD 2. Does anchorage of equipment in the area appear to be free of significant YJNEI- Ur N/AI"degraded conditoi~s 411 .3. Based on a visual inspection from the floor, do th4cable/conduAt Y 0N- Ut] N/AI racewaysand HVAC ducting appear to be ee of potentially adverse *, -. -.-,seisic condiiionsz(e.g.,, :condition of suppo is ade6q4te.and fill.conditions of cable trays appear to be inside cceptable-limits)?

-.hicve. ID 4. Does it appear that the area is free of potentially adverse seismic, spatial 'YeNEI- Ut- N/AD interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

Ah, v:/a-C$.V~&,c/1V4*ofý'~

Iak 13 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 b'e based on judgment, e.g., on the order of about 35 feet from the SWEL item.< C-5 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rnrrqnnndnP.nn Nn

• RR-19-173 D-31 r"TV %_ -LI 0 ' -" Sheet 2 of 2 Area Walk-By Checklist (AWC) a Location:

BldAg..,-

Floor El. 1..25,. Room, e ( ' .5. Does it appear that the area is. free of potentially adverse seismic inteyc ionsat could cause flolding or ray 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?NO UD N/AD YV- UO N/AD/7. Does it appear that, the area'is free, of potentially adverse seismic N UD N/AED 'interactions'associated with housekeeping practices,.

storage of portable.equipment, andltemporary installations g sca.folding, ead;, ding) ..... .. .. -..... ..... ..... ...8. Have you looked for and found no other seismic.conditions that could adversely affect the safety functions of the equipment in the area?Y.R NO U.Comnimhts (Additional pages may be added as necessar/

' ., .S ' .; ji Evaluated I)Y: Date: --Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 r.nrrmnnndr.nrn_

Nn -R.A-9-171 D-32 us-U C_ t(3-16 Sheet 1 of 2 Statui. U Area Walk-By Checklist (AWC)..Location: .Bldg.. 6b 'Fldor El. L Ro , Ardea 3. 46 e4 Instructions for Completing Checklist Thisechecldist maybe used to document the results of the Area Walk-By near one or more SWEL items. The-" space below each of the following que.stioiis 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)?

...YANO UD N/AD -2. Does anchorage of equipment in the area appear to be free of significant V l-I UI] N/A[-I d degraded conditions?

3. Based on a visual inspection from the floor, do the cable/conduit

.--raceways and HVAGducting appear-to be freeof potentially adverse-seismicchconditiohis (e.g., condition of supports is adequate and fill"cbiditions-of-cabletrays appear to be inside acceptable limits)?YPFlV WI N/ADE.4., Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipmerPt in the area (e.,, ceilin tiles.and VkNo uoNJA9 -13 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.< c-5 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 (.nrrPnnnndinr..

Nn

• RR7-1717 D-33 AMC- (J3-lb Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

BEdg: Flfoor El. Room, Area 1 3 5. Does it appear that the area is free of potentially adverse seis interactions that could causerflooting or spray in the a'a N P A" 1v na r e a*~~~~v f

• j $A4~-~7 All J lu oew____mnc 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)?

YvM NO UO N/AO YbNO U- Y, NEI UO N/A'IQi .,I " 8. Have you looked for and found.no otiler seismic conditions that could YJM NI]adversely affectthe safety functions of lie equipmen.tinthoare

?t*t ( *UEn r el-e_4~t (40" t.ýComments (Additional pages may be added as necessary)

Date: il/? #7-7~Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rnrrm.qnnndPnr.P Nn

• RR-12-17.D-34 itpod-/ M5-/7 Sheet 1 of 2 Status.: N U Area Walk-By Checklist (AWC)Ic/-Location:. -BdI ~4 Mr,( hf o~r El. 0-6b Rom ra 1 3.C , Instructions for Completing Checklist This checklist may be used to document the results of the AreaWalk-By near one or more SWEL items. The: space below each of the following question's nlay. be used to record the resultsofjudgmeits 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)?

". 5Lv.. 4 , " YON" UQ N/A.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-ductingappearto be free of potentially advte , .. eismniiconditions (eg.g condition of supports'is adequate and fill-con ditions of cable trays appear to be inside'acceptable limits)?Yk NCi U- N/AO Y,."2KN UEIN/A[ , N/AO 4.Does it appear that the area is free of potentially adverse seismic spatial Y4 NO UD"I interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

No °I /

• 1 1 3 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.< C-5 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rnrrP~nnndP.nrp.

Nn " RR-19-173 D-35 AWe - Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:.

Bldg.________

Floor'El.

I :'omkea" Rl,*./2 .," 5. Does it appear that the area is free of potentially adverse seismic Y-Nl] U[J N/AD interactions that could cause flooding or spray in the area?, NO" 6. .Does.it appear that the, hrea is free, of pQtentially adverse seismic interactions that could cause a fire in the area?XNEI UO N/AO 7. Does it appear that the area isfree ,fpoteýtially adverse seismic , YJ NE UD N/A :" interactions associated with .housekeeping pracfices, stda6ge of portble .-equipment, and temporary installations (e.g., scaffoldig, lead shielding)?

t. .Il/ OL 4 "~t L4'~A ~ ~ b44- ~ .-pekf4% e,-**v ~ipr.8. Have you looked for and found no other seismic conditions that could adversely affect the safety fInctions of the equipment in the area?,ý"] U13. -I Comments (Additiofial pages may b',"addedas necesaiy " Date: .( a Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rCnrrPqnnndrnr.P.

Nn

• RR-19-17.1 D-36 StatusiA N U 6A44'Area Walk-By Checklist (AWC)'Lcation: .Bldg. ! FloorEl. F o r Room,Area' 3 C i,"' -Instructions for Completing Checklist This checklist may be used to document the results of the Area Wal1W-By near one or more SWEL items.: The space below each of the following questions may be used to record the results ofjudgments and findings..

Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily openingcabibnets)?

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/conduitseismic 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)?

YND UEJ N/AD -ND UD N/AO,, YPNN- UEJ N/AO YdNO UEJ N/ADO 1 3 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.*<C-5>Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rnrrAmnnndPnrn.

Nn

• R.R-19-173 D-37 AWC-U3-'Y Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg."j "I& FloorEl. q .[ Room, Area".40 -V-0.3C 5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or splay in the area', ,vi lilt~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.adversee.seisipiic

, interactions associated with housekeepingipractices, storage ofportable equipment, and temoar nstallations (e.g., scaffolding, lead shielding)?

t fO(:.S.NI U[ N/ADI EN" U[I N/AD.'Iqo U[J N/AI, 8. Have you looked for and found no other seismic consditins that could adversely affect the safety functions of the equipment in the:area?-

Yi<NO UO Comments (Additional pages may be added as necessary)

" 1* "--1 ' ." : , .*-' " ": i'Evaluated by: Date:< C-6 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 r.nrrmnondnnrP.

Nn RR-1.9-171 D-38 Sheet 1 of 2 Statu-s: N U Area Walk-By Checklist (AWC)Location:

Bldg. M Floor El: lLQ. Room,Area"3 R'i- c/A -C , r Instructions for ComiipletingiChecklist 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 i.ecord.the resultsof.judgrients and findings.Additional space is provided at the end of this checklist for documentingother cdmmenti.1. Does anchorage of equipment in the area appear to be free of UI N/Ar'D, potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant YNII U-1 N/Ar,-degraded conditionsT'

3. Based on a visual inspection from the floor, do the cable/conduit YO' NEI UE N/AE.S .,raceways and HVAC ducting appear to be free of potentially adverse, seismic condi:tions (eg., condition of supports is:adequate and.fill,. , -conditions of cable trays appear to be inside acceptible limits)?-.ý..

.- " 4. Does it appear that the area is- free of potentially adverse seismic spatial Yk NOI UD N/A..interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

L.kt-, d* q,( , UIf the room in which the S-WEL 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.< C-5 )>Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 D-39 r.nrmq.nnnriAnr.P Nn

• R.R-19-17.1 AWc- -113-11 Sheet 2 of 2 Area Walk-By Checklist (AWC)'"catindg U ~.fz F166t l. I (e Room,;Area'1-C-/4 A--' ,w'-443_1_

-9<: 5. Does it appear that the area is free of potentially adverse seismic interactionsthat could cause flooding or spray in the area?* , 4 /4e %V .- 44 6. Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?Y19Nr' UEr N/AI-YN'NO UEJ N/AD 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)?, XýNO UD N/AD.,"Y '. , .-: )8. Have you looked for and found no other seismic condtions that could adversely affect the safety. functions.of the equipment.'in the area?, Y AND U .:.Comments (Additioinl pages may be added as ne-cessary)

N.Evali dated by: Date:.'T Tv< C-6 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rlnrrmnnndnP.1nr Nn -RS.-1 "-17.T D-40 4,4kdC- a3 -go Sheet 1 of 2 Status.6 N U Area Walk-By Checklist (AWC).Location; Bldg.: ._.___ Floor El. M& Room,, a /f Ii t4i PTL5tc"~.r II ....U ---Instructions for Completing Checklist'ThisAchecklist 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 ofjudgments knd findings.Additional space is provided at the endof this checldist 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 cabiniets)?

.-" Y NEI UEl N/A-2. Does anchorage of equipment in the area appear to be free of significant YX NlI UI" N/A[].4eaddcnditions? "A..~. -'egr.ded.co

3. Based on a visual inspection from the floor, do the cable/conduit

.,raceways!

andHVAC- ductin.g appear -to be free of potentially adverse seismictcon cition of supports is adequate and-fill conditionrs6f

'cable trays appear to be inside acceptable limits)?-', YANI- UI N/A-.4. Does it appear that the area is free.of potentially adverse seismic spatial Yk'Nl UI] N/AD , interactions with other eqjipment in the area (e.g., ceiling tiles and lighting)?

Alt Vd I04 Jt /Z 1 3 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.<C-5 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 D-41.nrrP.qnnr1nrý-

Nn

• RR-1T-17; AWC--U3- Z Sheet 2 of 2 Area Walk-By Checklist (AWC)Locatiton:

Floor El. J(&- Room,'seea" P. 4-. 9" 5. Does, it appear that the area. is free of potentially adverse seismic Y45ND UED N/At]interactions that could cause flooding or spray in the area? .4. .p C" ' ". I '4 -'d.6. Does it appear that the area is free of potentially adverse seismic YV ND Ut] N/AU : interactions that couldcause a fire in the area?.7. Does it appear that the area is free of potentially adverse seismic YO NO Ut] N/ACT interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

8. Have you looked for and foimd no other seismic conditions, that could adversely affect the safety ,functions of the equipment in the area?Y)ANt Ut]Commenits (Additional pages may added as necessary)

.........................

'/7 A7 Evaluatedby Date: 7_4"A/_Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rnrrP.qnnndp Nn

• PR-19-17., D-42 Sheet I of 2 Status: N U Area Walk-By Checklist (AWC)Location:

Bldg. 7hIVR Floor El. Room, Area1 3k-A --.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

.opehing cabinets)?

YX ND UD N/AD-, 2. Does anchorage of equipment in the area appear to be free of.significant Y)NI-! UD] N/AD degraded conditions?

/ .-D0'-ý~ 6frZ C4 3. Based on a visual inspection from the floor, do the cable/conduit raceways-and HVAC ductingappear to be-free of-potentially.

adverse seismic conditions (e.g.,& ondition of sulpports ist adequaite k.d fill conditions of cable trays appear to'be inside ac~eptablelimits)?

YX NEI U" NI/AD 4. Does it appear that the area is free of potentially adverse seismic spatial Y NDI U] N/AD interactions with other equipment in the'area (e.g., ceiling tiles and lighting)?

~) p~ S-066R5 oL76'667-5'3If 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.<-C-5 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 D-43 Nn RR-1 9-171 SeWL -2U -o-f Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. M24w. Floor El. 73-" Room, Area'3 A- 7?. W 5. Does it appear that the area is free of potentially adverse seismic YX NO UD N/AD interactions that could cause flooding or spray in the area?/6.-Does it appea thffit-ffie-area is optenlly YT D 1 N /AU :.. .W-- .interactions that could cause a fire in the area?7. Does it appear that the area is free of potentially adverse seismic Yua NO UD N/AD '.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 adversely affect the safety functions.of the equipment in the area?.NE UO-Commenlts,(Additional pages may be added aidnecessary) " " Evaluated by: Date: ___/__a,-~fiJ.#../6h Zc1'/i< C-6 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 n

• RR-19-171 D-44 Sheet I of 2 Status:0 N U Area Walk-By Checklist (AWC)Location:

Bldg. Floor El. I Room'Area" 13 I 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 ofjudginents and findings.Additional space is provided at the end of this checklist for documenting other comments.I. Does anchorageof equipment in the area appear to befree of Yj NI] U-1 N/AQI.-..potentially adverse seismic conditions (if visible without necessarily opening cabipets)?

2. Does anchorage of equipment in the area appear to be free of significant O NO Ul N/AO., d"egraded conditions?

.' ...... ....-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 supp6rts is adequate and fill conditions of cable trays appea r to be inside iic-e l 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)?

J5I.,t S itv(d k.9 t41jj14fdt-4/YOiýfl UO NIAO Y-9Nfl UOE N/AO;.13 If the room in which the SWEL item is located is very large (e.g., Turbine Hall), the area S :. -.",selected should be described.

This selected area should be based onjudgmen4 e.g., on the order of about 35 feet from the SWEL item.<C-5 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 D-45 flnrrPqnnnrdtnrP.

NKin R5R-19-17.

Sheet 2 of 2 Area Walk-By Checklist (AWC)V3 Location:

Bldgj..- .-,Floor El. 6- Room, Area3 C 4 tie IpIe4,,4 4 hý5. Does it appear that the area is free of potentially adverse seismic interaction hat 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?Ccat di f V I_ /YONO UO N/AOI*NE UD N/AO.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)?

YPID UQ N/AD 8. Have you looked for and found no other seismic conditions that could )fL NO UD "O adversely affect the safety functions of the equipment in the area?Comments (Additional pages may be added as necessary)

...Evaluated by: Date: 54 /";L-Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Nn RRA-17-17T D-46 Sheet 1 of 2 N U Area Walk-By Checklist (AWC)Location:

Bldg. Floor El. JCL5" Room, Area 1 3.r- " 61. i I~r Instructions for Completing Checklist This checklist may be used to document the results of the Area. Walk-By near one or more SWELitems.

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)?-

YEPNqI UO M/AU I:.2. Does anchorage of equipment in the area appear to be free of significant YJPFN[ UO N/AO].. .:,degraded conditions?

..........-, :. -,.. .;3...Based.on.a-visual inspection from the floor,.do the cable/conduit YfXNO Ut] N/AD , raceways and HVAC ducting appear to be free of potentially adverse seismic conditions:(e.g., condition of suppOrts is adeqtite and:fill.-conditions of cable trays appear to be inside accepiable limits)? .4. Does it appear that the area is free of potentially adverse seismic spatial YJ2asND UI- N/AD interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

• C". .t ,/ 7/4 *,,9 -.,.f- ,, ec r 1 3 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.<C-5 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 D-47 (.nrrPqnnndHnrP.

Nn -RR-I19-171 Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg.'___

Floor El. JI. Room,.AreaM1 ,g ( ['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 (eig.,.scaffolding, lead, shielding)?

10'4t t -+ C -Y) R NO UQ N/AOD Yk NO UO N/AQUD N/AO: 8. Have you looked for and found no other.seismic conditions that. could adversely affect the safety, functions of the equipment in the area?)%,.NEI U0 Comments (Additional paes may be added as necessary)

Evaluated by: A(Date: I 01a2--1/3/12,-Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rnrrs.qnnndInrP.

Nn

• MR-19-17.1 D-48

/9wc- a3 -29 Sheet I of 2 Status:(EN U Area Walk-By Checklist (AWC)Location:

Bldg. Floor El. 1 0,5 Room, Area,'3 k 6, 3"o-/C Instructions for Completing Checklist This checklist may be used to document the resultsof the Area Walk-By near one or more SWEL items. The space below each of the following questions mayý be used to record the results ofjudgments 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 Y4 rl& url N/AEI potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

2. Does anchorage of equipment in the area appear to be free of significant YINEI UO N/AO-degraded conditions?

'X 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 aud fill-conditions of cable trays appear to be inside acceptable limits)?YA NEI UO N/AO 4. Does it appear that the area is free of potentially adverse seismic spatial YO- NI] Uil N/Al.interactions with other equipment in the area (e.g., ceiling tiles and"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.< C-5 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 (,nrrmnnnH'ntfP Nn " R5R-1-17.1 D-49 V -h.e. o:.Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. Floor El. 1-&5 Room, Area'3 V%.6 .' 3'3 5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?)Iv, 4. + 1 44 r t fU0 N/AD 6. Does it appear that the area is free of potentially adverse seismic Y)13 ND'lUI) N/ADU interactions that could cause a fire in the area?7. Does it appear that the area is free of potentially adverse seismic Y4 NO UO N/AO, interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

o;,t 44'd., *' ,,,1 8. Have you looked for and found noohther seismic conditions that could Yg NOI U0 adversely affect the safety functions of the equipment in the area?Comments (Additional pages may be'added as necessary).

Evaluated Date: 14/k/(2/0 Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rnrrm~nnndPn(e..

Nn ' RRA 73 D-50 Sheet 1 of 2 Status:,p N U Area Walk-By Checklist (AWC)Location:

Bldg. SCMtPf JI. Room, Area13.L/Z-L

• 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 ofjudgments and findings.Additional space is provided at the end of this checklist for documenting other comments.I. Does anchorage of equipment in the area appear to be free of YX NO U] N/A[D potentially adverse seismic conditions (if visible without necessarily opening cabinets)?Feu I olton m on 4w- -,' 4 .._.2. Does anchorage of equipment in the area appear to be free of significant Yt NO3 UQ N/AE ,de graded conditions?

..4 u4 .... / -- _ 4: "J..o" 4 v 4f tw-, , 3. Based on a visual inspection from the floor, do the cable/conduit raceways -and HVAC ducting appear to be free of,potentially adversecondifionrs (e.g.; condition of supportsis adequate and fill conditions ofCible 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)?

• UO-N/AO YJ NO UD N/AO]k(~, U14d~td 4w1.ot'Q+ ra 1 3 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.<C-5 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 D-51..nrrm~nnnr1P.nrP.

Nn " RR 19-171 Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

i, " Floor El..ALL...

Room, Area'3 9/l " LI.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?FNO UD N/AO YX NO UO N/AO 7. Does it appear that the area is free of potentially adverse seismic Y'NdNO U- N/AQl interactions associated with housekeeping practices, storage. of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

-o 4.-UnalAelJIOA 404'4 om StAe., 8. Have you looked for and found noother seismic conditions that could YXNO U .adversely affect the safetyuýncons of the equipment in the area?comments (dio apa i b ca ver5 A "Floor red'.Comments (Additional pages m'ay be added as nece .ssary)WUJANMlOReD LA06CZ 4001Z ý RI 0+ 110621'"Z Evaluated by: NJ Date: Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 r.nrrPgnnndi.nrP Nn

• R-19-171 D-52 Table D-2. Unit 0 Area Walk-By Checklists (AWCs)Peach Bottom Atomic Power Station Unit 3 D-53 MPR-3812, Revision 3 Correspondence No.: RS-12-173 Sheet 1 of 2 Status:Ty N U Area Walk-By Checklist (AWC)Location:

Bldg. 3?,'asI it..Floor El. 1 12 i4'Z Room, Area'3 b--LL b&/ , El,- K&1111 Instructions for Completing Checklist This checklist may be usedto 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)T Y09 NiO UD N/AO.2. Does anchorage of equipment in the area appear to be free of significant YRQ NEI Ur N/AL]degraded conditions?

3. Based on a visual inspection from the floor, do the cable/conduit

..raceways and HVAC ducting appearuto 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)?

YM NI UD N/AL/9 NO U] N/All]One- c,,Pe, hv'k 41-1 -,-1 11ot ve 1)H o -.C.&'w ,,/' 'N t1ol/AS.7_\..

5.l e--,W!., .-,- , ..=.,,,f+/-Yi3..

,7 A -- ,ý'44'f ~ fy / ~,./le-/ d ~ e/oo y 1 3 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.C-5 >Bottom Atomic Power Station Unit 3 D-54 Peach E MPR-3812, Revision 3 CnrrP..qnnndFnrn Nn

• RR-19-171 A C-2 fI Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. C"" FloorEl. Room, Area'3 J'/-t g5 Dct p t the a&oot i ll 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?YZI NEI UL N/Al Aki 3; reA190 YIN! NEI. UL N/AL 7. Does it appear that the area is free of potentially adverse seismic YN NO UI' N/A'!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 YP9 NO UOI adversely affect the safety functions of the equipment in the area?Comments (Additional pages may be added as necessary)

Evaluated by:.L/Date: #V~< C-6 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 r.nrrqnnndr.nrP.

Nn

• RR-19-17.1 D-55

,40e- Uz -Z Sheet 1 of 2 Status: ) N U Area Walk-By Checklist (AWC)Location:

Bldg.. t P &(e- .Floor El. 121- I Room, Area 1 3 -Instructions for Completing.Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. The space below each of the following questions may be used to record the results of judgments and findings.Additional space is provided at the end of this checklist for documenting other comments.1. Does anchorage of equipment in the area appear to be free of potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

YN NEI UO N/AO 2. Does anchorage of equipment in the area appear to be free of significant Y6 NO] UEI N/AO degraded conditions?

3. Based on a visual inspection from the floor, do the cable/conduit Y0 ND UD N/AO 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 NEI U' N/AO interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

k cj'(t.oI-," 1 3 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.Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rnrrPnnndPnr.p Nn

• RR-A9-17.1 D-56 AVWC_-U -z Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. bI-5c( Floor El. I-i-t27 Room, Area '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?YK NEI U- N/AO YO NE UD N/AEI 7. Does it appear that the area is free of potentially adverse seismic Y391 NE UD N/AD interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?

fro ide~ A4- t'<.eeyF-ýL

, 8. Have you looked for and found no other seismic conditions that could YJM NE UDJ adversely affect the safety functions of the equipment in the area?Comments (Additional pages may be added as necessary)

Evaluated by:.1-f- 0 At "'ýDate: S/_2__ __ _ 2_3' ,~-< C-6 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3.nrr.nnndPnn-_

Nn RR-19-171 D-57

Sheet 1 of 2Status: ON U Area Walk-By Checklist (AWC)Location:

Bldg. EC T' Floor El. t1 Room, AreaU( o,.,,, roo 2 ( .-g 0)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 ofjudgments 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)?

YF NDI UE0 N/AD .LA 2. Does anchorage of equipment in the area appear to be free of significant YI NDi U!] N/AD degraded conditions?, ,7.' -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 icceptable limits)?, Y19 NEI U0] N/AD *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)?

Y&,ND0 U!] N/AD 1 3 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.<C-5 >'Peach Bottom Atomic Power Station Unit 3 D-58 MPR-3812, Revision 3 rnrrP;nnr1~nr.np Nn RR-1 9-1 73 Ave 2 -3 Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. 45-e I- Floor-El.

/1-s" Room, Area"3 E -T-g)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?.YO NEI UUO N/AUI YK. ND UO N/AD 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,K NOI UD N/AEl 8. Have you looked for and found no.other seismic, conditions-that .could adversely affect the safety functions of the equipment in-the area?YR NE UO'-.SComments (Additional pages maybe added'as iecesry)Cdmet as -c" ; .Evaluated by: A"_L/Date: .________V/ ia// i 9 --Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 r.nrrqnnndrnrP.

Nn -RR-19-17T D-59 Sheet 1 of 2 Status:(Z)N U Area Walk-By Checklist (AWC)Location:

Bldg. Floor El. .J z.Room, Area 1 3.d ' -Instiuctions for Coimpleting 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)?-

Yg NO UE N/A.2. Does anchorage of equipment in the area appear to be free of significant YMk NEI UO N/AO:.degiýaded cohditions?J" ' -'-.".' ,O UD N/A<',... ............

3. Based on a visual inspection from the floor, do the cable/conduit

-raceways and HVAGducting-appear.to be free. of potentiallyadverse"seismic-conditions; (e6.g:, conditionii f supports 'isi adequate and fill-conditions-f 6able traysapper to be inside acceptable limits)?Y[F NO UC1 N/A -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)?

AJo ~ A'Y/MI NOI Ul' N/A *- *W,' I7 -AeOVI%1 3 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.<C-5>Peach Bottom Atomic Power Station Unit 3 D-60 MPR-3812, Revision 3 CrnrrA.qennndHAnP.

Nn

• PS-12-171 AWc-uO-q Sheet 2'of 2 Area Walk-By Checklist (AWC)Location:

Bldg., &:C Floor El. 1 Ii! Room, Area" 3 C~ I 5.Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?Y)XN-I UQ- N/A[I YO ND UO N/AO, 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)?

Yg NO UO N/A '.A 8. Hav~e you looked for and foundmno other'seis'mic' condition~s that could YI& N[I U[-3 adversely affect the safety functions of the. equipment in the area?_Comments (Additional pages may be Add as necessairy

)Evaluated by:.Date: Z.20 -% ?/?-/Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3"nrrP..qnnrInnr..

Nn

• RR-19-173 D-61 bntucin forst.4ýf thepeti Checklistr Tliischeck~istmay, be used to documnt the eutsoh Area Wal-By near n rmr SWIEies.space beow&ahf the-following quesbtioýn's may be..used to recodkdthe; results .of judgment an d findings Additio~had"-l space iprvi athenof-.this che&cklist.

for.. docmitn tercnins I.Dos ncorg of equipnient in- he-area4`'

apetO-,be fre fN] QNA potetialy averse. seismic ýcondion(f iblwthinesary opnncabines?

2.iDoeslanch'-o-r.age of equipm~nenit-in

~theaeia ap~pe-a-rt be fe ofsign"&Aifan Y, N DNA Regde condItion's?

3~ Bse n -vsalinpetonfrmthe lor d tecable/conduitý ElN:U NIAO seiglsnl9 .coditions'(e~g, condit'io'iY~f sip'p~ort's is'. adquate land f.'ll condctiki ofcbe f ~ppe to be inside cetbelmt)li-httng)?o

-~b eF'em (, 'A '~'i y1 ~ , V JSNtEl'3 if the room in;hkh the. WEL. item Is doae is* v 'le(Og.,;

Trbine HA),te ea SSdekcCudd&h b edds'ib TK6. selectedare

'Oiia~ldb b'di""I" jidmn;4nde th "w"f abt3f er~r -srb 6Il~a'co u.Vg ýeg n re..6660 _,k ther SWitem< -:>Peach Bottom Atomic Power Station.Unit 3 MPR-3812, Revision 3 rnrrr Nn K -RsV=173 D-62 Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. EC- -Fl6orEl. /I1 Room, A-rea, 3 e6 T--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)?

YY NO UD N/AQ YNI UO N/A0 YI NO UD N/AO 8. Have you looked for and tiound no other seismic conditions that could YIZ N[D UD]adversely affect the safety functions of the equipment in the area?Comments (Additional pages may be added as necessary)

Evaluated by: Date: 7, Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 f.nrrPqnnndPnrn-Nn " RR-917A D-63 "Sheet- lof 2 Staus:~ Ni :U Area Wlk-ByCheckht(A

'Thi !hcls ~ybe udO~cumentftheresults of.te` re Wl-Bynear one or morelSWEL items. Thev sjpace beloweach, of the, follwing questionsýý may b 9e usd to r'ecbr'd-the results ,of judgments

ý,and finidins openar e.cainets?

of 2 Dosaficho~ra of

"~theare .a.ap..t *be free of significant

.,.Basedona.vsualnspectionfrom, the, floor, doý'the cable/c.onduit

~~~~9 mrceay Rn4V ducting-apparob freo poetal ,adverse., sesmcicoditio coditionof spporspq aeqae' ndfl codiiof of cal insy l',-"l", , ; : , :?":¢: :- ~ ~',+" V k._ it" t N `.* , , .,,'2 ,"-:Z- .. ..-._'.,."," 'S k n c c,..n ~ ~ n ~ .. u o , s p o ,!s a~c ia d u , YJ~ 1~Q 110 PAo Y~ NO UO N/AD C -~ ..., ~.-.C.-.,:.vv* i .C.4. Dost09 partht0h area is 'free o'f potientiafllyadVerse seismic( spatialf interactions, thother.equ pmentur- nthe area. (g,-;ceiigdtiles.and

....ghting)?e-

..10110l N/AO NO; UC; i~b'3 Ifth oo wictheSE cmiloat4s erylre (egTurbineHl),heaa isedec'~ed~shoulcl bdesdrib&I.a:This I:eldd areaa should be bised: donju et e:,o!,oeo:

ioti!ri SW L dbe se j-dtm .........)em Peach Bottom Atomic Power Station',Unit 3 "-64 MPR-3812, Revision 3 D i. , " rn~rr-ýnnndpmri&

Nn. RA-19-173.

Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. 7e/biA Floor El. /4 Room. Area" tJ4" 44/A'$x Ar 6p,&o/ .5. Does it appear that the areais free of potentially adverse seismic.interactions that could cause flooding or spray. in the area?6. Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?YM NO UQ N/AO Y$j NO UO N/AQ: 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)?

YX NEI U N/AO.8. Have you looked for and found no other seismic conditions that could YM[ NOI U -adversely affect the safety.functions of the equipment in.1he area? /comments (Additimnal pages may be added-as necessary.

Evaluated by: d Date: 4LT/? AL_~I t Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Nn

• RR-12-17.1 D-65

)Y6- 610- 7 Sheet I of 2 Status: 0 N U Area Walk-By Checklist (AWC)Location:

Bldg. a,,-,, ifJ'.Floor El. 16S Room, Area1 3 L6,h- od i 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 ofjudgments 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)?

Yq-.ND UE N/AD ...2. Does anchorage of equipment in the area appear to be free of significant N] U[]I N/AD'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)?

~t~cL ~&~ ~ ?-J 4~'Y(~- CL'Y4 NEI U- N/AD.YNl ND U N/AD!...: .cf-I'-&-(0 & /ýýee_ ZA 0 la X&13 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.< C-5 >Peach Bottom Atomic Power Station Unit 3 0-66 MPR-3812, Revision 3 rlnrrmnnndrnrP.

Nn ' RR-19-17.

Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. , IMA, Floor El. -(6 Room, Area'3 L'oWI'o 1 3oot1 5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?YR NE UD N/Af 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)?

Y9 NE UE N/AO YýT NO UM N/AD 8. Have you looked for and found no other seismic conditions that could YJR NE UE adversely affect the safety functions of the equipment in the area?Comments (Additional pages may be added as necessary)

Evaluated by: 6i~>2-~Date: / !/ V/,2-I&'Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 rnrrP.qnnndPnrP Nn

• RR-19-171 D-67

/7wd IF Sheet 1 of 2N U Area Walk-By Checklist (AWC)Location; Bldg. 7bT/h,: Floor El. /t&- Room, Area 1 3 F4 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 YN[] UO] N/Al].-,, potentially adverse seismic conditions (if visible without necessarily opening cabinets)?

.ver've- ,..rM/6 zeIr 2. Does anchorage of equipment in the area appear to be free of significant YM NEI UEI N/ADI..:,degradedconditions?.

,,./'D> /iOe- /y4 1ýelAxee 44'e .d'ere /Z' 4e '4,ak 45-3. Based on a visual inspection from the floor, do the cable/conduit Y[R NEI Ul N/A[]raceways and HVAC ducting appear. to be free of potentially adverse-* ssc conditions (ewg., condition of supports is adequ-teand 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 Yi NEI UD N/AD interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

'3 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.<C-5 >Peach Bottom Atomic Power Station Unit 3 D-68 MPR-3812, Revision 3.nrrnnnrPnntP Mn

• RR-19-171 Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. 7"w Lir.. Floor El. I65" Room, Area'3 13 ' ' w 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)?

YJR NO U- N/AU Y/ NEI UI N/A'.YP NO UI N/A.8. Have you looked for and found no other seismic'*.c'nditions..that could NEI UOI :..-adversely affect-the safety functions.of the equipment iin.the area?Comments (Additional pages may be added as necessary

-.Evaluated by:.Date: /Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 r.nrrP-nnndP.nr.A Mn -MR-1 9-17.T D-69 sliet1 f 2ýStatus;O'N; Uv Area akB hcls AC Room, Area'6 ) l~Istructi44s ort~omp et"n hcls Addiionl spce uspoyced at the endo this chckis ebr doc mgte.comns I1 .. Doe anhrg .fcupini th axes pert efe/fY N L /l.ra.e...s.a

__,-_,q c ingapp ,,ea to bpe free of poenial ad"rs opnditgionsfcbe sry pert eisd cetbelmt)Diq n deat~i with ote r &..., q uip met in the'di arpeaý (eg. celn ies an-~ I.oi 1cft ii FJrt it K'C' oii 35'ti tr~ the AVE ite Peach wy~ad Boto Atmi Powe Stto Uni en 070a MP-1,sRevismione coidNin app gtp 0q.7ýj Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. .e -J. Loor El. 151 Room, Area13 r16 -1)5. Does it appear that the area il free of potentially adverse seismic Yd[NrI UEJ N/AI-interactions that could cause flooding or spray in the area?6. Does it appear that the area is free of potentially adverse seismic Y[(NrI UI- N/AO interactions that could cause a fire in the area?7. Does it appear that the area is free of potentially adverse seismic YBNr'i url N/AL)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 Y[ikNrI ULI adversely affect the safety functions of the equipment in the area?Commments (Additional pages may be added as necessary) wV/A Evaluated by:.Date: 2- -Z7/6(Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Nn RR--19-171 D-71

,4uoQ- Ito -Sheet 1of2 Status& N U Area Walk-By Checklist (AWC)Location:

Bldg.

I S Room,.Area" gIW " ).-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 usedto record the results of judgments andifindings., 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 YM NEI potentially adverse seismic conditions (if visible without necessarily-opening cabinets? .o 44 Lo"Ur " 'r A#An -,esJ4vmk

-nos 2. Does anchorage ofequipment in the area appear to be free of significant Yco o NO.: : ,>. :.'.:>.degraded conditions?

'.iii "

,:i UO N/AO vIa*C UD N/AE]: , ,.,:.. ..3. Based on a visual inspection from the floor, do the cable/conduit.racewaysand HAC- ductingappear tobefree-of potentially-adverse seismic conditions

(&.g., condition of supports'is adequate and fill conditions of cable trays appear to be inside acceptable limits)?T 5$-of-oI coblc' 4 0~Y5 _F1 OtO kc9 i Y' NEI UE N/AE]4. Does it appear that the area is free of potentially adverse seismic spatial Yk'NEI interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

UE] N/AE'1 If the room in which the SWVEL 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.< c-5 >" Peach Bottom Atomic Power Station Unit 3 D-72 MPR-3812, Revision 3 rlnrrm..,nnnr1PnrP.

Nn ' RRA 71 Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. Floor El. !t5 Room, ,Area1O'3/

/c-5. Does it appear that the area is free of potentially adverse seismic Ybd NO! UI N/A-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)?

4# Tool a( $strcb Y4NOI U! N/AD 4X N[I UO N/AU..........................

.

".-;-8. Have you looked for and found.noother.seissmicconditions that could adversely affect the safety functions, of the equipment in the area?YX NO UE1 Comments (Additional pages may. be added as necessad):

NIA\Evaluated by: (ý04 ý V --Date: / / )iO2Otz Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 r.nrrP..nnnldPntCP Nn

• RR-19-17.D-73 Sheet 1 of 2 Status:& N U Area Walk-By Checklist (AWC)pio.I & 10/3111?.LZ Location:

Bldg.. FIcrEl. i2.." Room, Area'3 'iJ(-q bW-i,7 Instructions for Completing Checklit 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)?

Y[Ef NO U- N/AD Auri Izes'Rvo Oecroqs- 14A S Y 2"8 '4/actMor l3LT~S A~ i -benOdt AJVi~lgft T30OLrS' AkC 31{t6OLrb rO 7361L & ~A[~~CI ~~~7)11E I CALL 4kTkf AS x.eCfcfr-AWrC

%_K~ AOZI Pqdiqd. ecC III&IhZ 2. Doe anhraeo equip~ment in the area appear to be tree of significant YLý'NI] UI] N/A[] -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)?YM'NI-I UDI N/AD 4. Does it appear that the area is free of potentially adverse seismic spatial YQ( NI]interactions with other equipment in the area (e.g., ceiling tiles and lighting)?

UE- N/AEJ tk-/4Aadb 1P Lao It tue~sr ~*r (~J~Jcrectee but ntco r~13 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.< C-5 >Peach Bottom Atomic Power Station Unit 3 D-74 MPR-3812, Revision 3..nrrPgnnnH~nr.P Nno R.0-1 9-171 AwC--L)~641 Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. 0', l .Ioor El. )ýIi Room, Area 1 3 bla-4 5. Does it appear that the areas 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)? , ... , .... .. ..YEI"'N1 UEI N/AEI YD"NFJ UEI N/Afl YI~'NE UEl N/A[]ý;-ATVLI;ý CAR-1 _v-M4 ý_Ou(a-v %,j(,4CqýL

8. Have you looked for and found no other seismic conditions that could Y[ET" N[1 U'-adversely affect the safety functions of the equipment in the area?Comments (Additional pages may be added as necessary)

Iv/A Evaluated by: Date: O/) la-)6 --e. ,, ---4 2 P) -201-< C-6 >Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Nn

• RR-1?-171 D-75 Sheet 1 of 2 U Area Walk-By Checklist (AWC)Location:

Bldg. A ra." Floor:EI.

]K L Roopm,'Area 13 nl' rV 4 4-Instructions for Completing Checklist-This checklist may be used to document the results of theArea Walk-By near one or more SWEL items. The space below each of the following questionsmay 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 appearuto be free of potentially adverse seismic conditions (if visible without-necessarily opening cabinets)?

YALNO uo N/AD--2. Does anchorage of equipment inzthe 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 freeof potentiallyadverse seismic conditions (e.g., condition of supports is adequate and fill, conditions of cable trays appear totbe inside acceptable'limits)?,2 NO U- N/AD" i .,-X NDI UQ N/AD :,;-.4. Does it appear that the area is free of potentially adverse seismic spatial I D UO N/AD interactions with other equipment-in the area (e.g., ceiling ti,.1sd d... -.lighting)?

Zn Nr/f c~~c-"~ ~V t 0ý kA a 5 +, kI4ý 9-eV4.~ Af 4 hal 0-r 13 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.<C-5 >Peach Bottom Atomic Power Station Unit 3 D-76 MPR-3812, Revision 3 rnrrPqnnnd,-,nr.

Nn " R-19--17.1 Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. X Floor El. Room,.Areau3 -x4I f OV3-.5. Does it appear that the area is free of potentially adverse seismic interactions that could cause flooding or spray in the area?;:"v oý 4. .* ,: -'. ..i- .le.4 Yff NEI U[I N/A[I 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)?

SND: UQ N,/AEI 4%ZNrJ uo N 8. Have you looked for and found no other seismic conditions that~could adversely affect the safety functions of the equipment in, the area?ZT!CNO uo]Comments (Additionaltiages may. be added as necessaiy)'"-t-,'*. .Evaluated by: Date: , 1, ? -Ax&L Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 CrnrrPnnndlnr.P Nn

• RSWZ92.171 D-77

,410C-0LL-13 Sheet I of 2 Status:9 N U Area Walk-By Checklist (AWC)Location:

Bldg.. F "", Floor El. 112.. Room, Area'3 02. HPSW Pu, (V PH_6 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)?

Y4I.ND UD N/AD .2. Does anchorage of equipment in the area appear to be free of significant YRND Ul] N/Al degraded conditions?

3. Based on a visual inspection from the floor, do the cable/conduit raceways.

and HVAC ducting appear to be free of potentially adverse seismic conditions (e.g., condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?Y0ND Ul' N/Al 4. Does it appear that the area is free of potentially adverse seismic spatial interactions with other equipment in the area (e.g., ceiling tilesAnd lighting)?

Nf tL-oi fOf , , N] UL- N/Al]tjf%MocJ~ &s~c/1 ;~~cd~t C~A s~d 2 e*1 ~Vttc~ ~- Cr~J"('S ~ ~ ~ Mo 6~.4'a/tliz 13 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.<C-5 >Peach Bottom Atomic Power Station Unit 3 D-78 MPR-3812, Revision 3 CnrrP~nnnd~nrp.

Nn

• RR-19-17."

Awet. 2o- 13 Sheet 2 of 2 Area Walk-By Checklist (AWC)Location:

Bldg. .S .Floor El. -' ILt .Room, Area13, 12 HCS'W 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)?

A , -t4 7 , 4 'v., keone Y09ýNO UD N/AE3 YNO UEJ N/AO.Y2NO UO N/AD e~'4 v~v~,qAr 5e~c~ h~.8. Have you looked for and found no'oiher seismic conditions that could UE.adversely affect the safety fumctiQns ,of the.equipment-in the.area?, Comments (Additional pages may be add'd a'sneces'siary)

.... ...EValuated by: Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 ,nrrPmnnnrIP.nr.P.

Nn

• RR-19-173.'

Date: ' 2<C-6>D-79 E Plan for Walkdown of Inaccessible Equipment and Assessment of Electrical Cabinet Internal Inspections E.1. PLAN FOR WALKDOWN OF INACCESSIBLE EQUIPMENT As shown in the SWEL for PBAPS Unit 3 in Appendix B (Table B-3), 13 items have been deferred until the next refueling outage (RFO) or a future electrical bus outage. Table E-1 summarizes the reasons each item is inaccessible during normal plant operation and indicates the estimated milestone completion and tracking number.Table E-1. Summary of Inaccessible Equipment Reason for Milestone Tracking Component ID Description Inaccessibility Completion Number 00B094 480V Bus E13A4 Requires 4KV Bus 6/2013 IR Outage 01426027 30B037 480V Reactor Area MCC Requires 4KV Bus 10/2013 A1533874 E234-R-B Outage 30A015 Emergency 4kV Aux Requires 4KV Bus 10/2013 A1535569 Switchgear E23 Outage 30B01 1 480V Load Center E234 Requires 4KV Bus' 10/2013 A1535775 Outage A03-01-080A Inboard Main Steam Located in drywell 10/2013 Al 863615 Isolation Valve A A03-01-080C Inboard Main Steam Located in drywell Isolation Valve A RV3-02-071 D Safety Relief Valve D Located in drywell RV3-02-071 F Safety Relief Valve F Located in drywell MO3-06-029A Feedwater Stop Valve Located in drywell MO3-23-015 HPCI Turbine Steam Line Located in drywell Inboard Isolation Valve MO3-23-019 HPCI Discharge to Located in main Feedwater Line Valve steam tunnel/MSIV room 3BT540 Instrument N2 Located in drywell Accumulator 3KT545 Instrument N2 Located in drywell Accumulator Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.: RS-12-173 E-1 E.2. ASSESSMENT OF ELECTRICAL CABINET INTERNAL INSPECTIONS All electrical cabinets on the SWEL require assessment of the need for inspections to address the potential for "other adverse seismic conditions" internal to the cabinet. This assessment is required due to an NRC clarification of their expectations for seismic walkdowns, which was received after the online seismic walkdowns were completed.

Tables E-2 (for Unit 3) and E-3 (for Unit 0) list all electrical items that require assessment.

Accessibility of equipment, basis for accessibility determination, completion date of internal inspections, tracking number (if internal inspection has not yet been performed) and inspection results are provided in these tables.Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.: RS-12-173 E-2 Table E-2. Assessment of Unit 3 Electrical Cabinet Internal Inspections Component ID Description EPRI Equipment Class Accessible (YIN) If Not Accessible, Milestone Tracking Status I Why? Completion Number Inspection (IR Number) Results 30B324 MO-3-23-015 Motor Control Power (01) Motor Control Centers Y N/A 10/2013 A1863615 Scheduled Transfer Switch 30B325 MO-3-13-15 Motor Control Starter Panel (01) Motor Control Centers Y N/A 10/2013 A1863615 Scheduled 30B338 M03-10-16A Auto Transfer Switch (01) Motor Control Centers N Tools required for N/A N/A N/A disassembly 30B37 480V Reactor Area MCC E234-R-B (01) Motor Control Centers N Tools required for N/A N/A N/A disassembly 30B010 Emergency Aux Load Center E134 (02) Low Voltage Switchgears N Tools required for N/A N/A N/A Switchgear disassembly 30B013 Emergency Aux Load Center E434 (02) Low Voltage Switchgears N Tools required for N/A N/A N/A Switchgear disassembly 308011 480V Load Center E234 (02) Low Voltage Switchgears N Tools required for N/A N/A N/A disassembly 30A15 Emergency 4kV Aux Switchgear (03) Medium Voltage Switchgears N Tools required for N/A N/A N/A disassembly 30X030 Load Center E134 Transformer (04) Transformers N Tools required for N/A N/A N/A disassembly 30X033 Load Center E434 Transformer (04) Transformers N Tools required for N/A N/A N/A disassembly 30X133 Panel 30Y33 Transformer (04) Transformers N Tools required for N/A N/A N/A disassembly 30S703 120V Inst. Panel 30Y035 Transfer Switch (14) Distribution Panels Y N/A 7/2014 A0668950 Scheduled 30Y050 120V AC Distribution Panel (14) Distribution Panels N Energized Equipment; N/A N/A N/A never out of service (diesel backed and battery backed)30Y35 3PPD 125V DC Distribution Panel 3C (14) Distribution Panels N Energized Equipment; N/A N/A N/A never out of service (diesel backed, no PM)3BD025 3B 125 VDC Distribution Panel (14) Distribution Panels N Tools required for N/A N/A N/A disassembly 3DC068 RPS SCRAM solenoid fuse panel D (14) Distribution Panels N Tools required for N/A N/A N/A disassembly 30D37 Static Inverter (16) Battery Chargers and Inverters N Energized Equipment; N/A N/A N/A never out of service (diesel backed, no PM)3CD03 Battery Charger 3C (16) Battery Chargers and Inverters Y N/A 3/2013 A1797035 Scheduled 3DD03 Battery Charger 3D (16) Battery Chargers and Inverters Y N/A 4/2013 A1807622 Scheduled 30C003 Reactor and Containment Cooling and (20) Control Panels & Cabinets Y N/A 9/2012 N/A SAT Isolation 30C004C RCIC Vertical Board (20) Control Panels & Cabinets Y N/A 9/2012 N/A SAT 30C005A Reactor Manual Control Board (20) Control Panels & Cabinets Y N/A 9/2012 N/A SAT 30C032 Egr Safeguard Sub-Sys 1 (20) Control Panels & Cabinets Y N/A 9/2012 N/A SAT 30C033 Egr Safeguard Sub-Sys II (20) Control Panels & Cabinets Y N/A 9/2012 N/A SAT Pea..h Son- Atomic Power Station Unit 3 MPR-.312, Reision 3 Co-espondence No.: RS-12.173 E-3 Table E-2. Assessment of Unit 3 Electrical Cabinet Internal Inspections Component ID If Not Accessible, Milestone Tracking Status I Co DDescription EPRI Equipment Class Accessible (YIN) W ?Completion Number Inspection Why? (IR Number) Results 30C034 RCIC Relay Panel (20) Control Panets & Cabinets Y N/A 9/2012 N/A SAT 30C722A Accident Monitoring Instrumentation (20) Control Panels & Cabinets Y N/A 9/2012 N/A IR# 01424662 Panel 30C722B Accident Monitoring Instrumentation (20) Control Panels & Cabinets Y N/A 9/2012 N/A IR# 01424692 Panel 300043 HPCI Aux Lube Oil Pump Starter (20) Control Panels & Cabinets N Tools required for N/A N/A N/A disassembly 3BC270 HPCI Steam Leak Detection Cabinet (20) Control Panels & Cabinets N Tools required for N/A N/A N/A disassembly L13-2-3-113 Reactor Water Level (20) Control Panels & Cabinets Y N/A 9/2012 N/A SAT LI-9027 Torus Water Level (20) Control Panels & Cabinets Y N/A 9/2012 N/A SAT LR/TR-9123B Torus Water Level/Temperature Recorder (20) Control Panels & Cabinets Y N/A 9/2012 N/A SAT P13-6-90A Reactor Wide Range Pressure Indicator (20) Control Panels & Cabinets Y N/A 9/2012 N/A SAT PRrTR3-2-3-404B Reactor Pressure (20) Control Panels & Cabinets Y N/A 9/2012 N/A SAT PR/TR-5805 Containment Pressure (20) Control Panels & Cabinets Y N/A 9/2012 N/A SAT PeacSB eanolT Comk P.-e OtSon SnM 3 snPR-30,2.vw ecoo3 C ---pond.ne N0.: es.1 2-173 E-4 Table E-3. Assessment of Unit 0 Electrical Cabinet Internal Inspections Status I Milestone Tracking Number Sau Component ID Description EPRI Equipment Class Accessible (YIN) If Not Accessible, Why? Completion (IR Number) Inspection Results 00B061 Pump Structure MCC E224-P-A (01) Motor Control Center N Tools required for N/A N/A N/A disassembly 00B094 480V Bus E13A4 (02) Low Voltage Switchgears N Tools required for N/A NIA N/A disassembly 00C29B Emergency Protection Relay Board (20) Control Panels & Cabinets Y N/A 9/2012 N/A SAT 0AC097 Diesel Generator OAG12 Control (20) Control Panels & Cabinets Y N/A 5/2015 A1620164 Scheduled Panel I _IIII Peach Bottom Atomic Power Staticn Unt 3 MPRe-312, Revislon 3 Correspondence No.: RS-1 2.173 E-5 F Peer Review Report This appendix includes the Peer Review Team's report, including the signed Peer Review Checklist for SWEL from Appendix F of the EPRI Seismic Walkdown Guidance (Reference 1).Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.: RS-12-173 F-1 Peer Review Report for Near Term Task Force (NTTF) Recommendation

2.3 Seismic

Walkdown of Peach Bottom Unit 3 Peer Reviewers:

Patrick Butler (Team Leader)Craig Swanner Caroline Schlaseman Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.: RS-12-173 F-2 Contents F.1 Introduction

....................................................................................................

4 F .1.1 O ve rv iew ..................................................................................................

..4 F. 1.2 Peer Reviewers

..........................................................................................

4 F.1.3SW EL Development

...................................................................................

5 F. 1.4 Seismic W alkdown .....................................................................................

5 F.2 Peer Review -Selection of SSCs ....................................................................

6 F .2.1 P u rp ose ...................................................................................................

..6 F.2.2 Peer Review Activity -Selection of SSCs ..................................................

6 F.2.3 Peer Review Findings -Selection of SSCs ...............................................

7 F.2.4 Resolution of Peer Review Comments -Selection of SSCs ......................

7 F.2.5 Conclusion of Peer Review -Selection of SSCs .......................................

8 F.3 Review of Sample Checklist

& Area Walk-Bys ..............................................

9 F.4 Review of Licensing Basis Evaluations

.......................................................

15 F.5 References

..........................................................................................................

16 Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.: RS-12-173 F-3 F.1 Introduction F.1.1 OVERVIEW This report documents the independent peer review for the Near Term Task Force (NTTF) Recommendation

2.3 Seismic

Walkdowns performed by MPR Associates, Inc.for Unit 3 of Peach Bottom Atomic Power Station (PBAPS). The peer review addresses the following activities: " Review of the selection of the structures, systems, and components, (SSCs)that are included in the Seismic Walkdown Equipment List (SWEL),* Review of a sample of the checklists prepared for the Seismic Walkdowns

&Walk-Bys,* Review of any licensing basis evaluations," Review of the decisions for entering the potentially adverse conditions in to the plant's Corrective Action Program (CAP), and* Review of the final submittal report.F.1.2 PEER REVIEWERS The Peer Reviewers are Patrick Butler, Caroline Schlaseman and Craig Swanner.Mr. Butler is the Peer Review Team Leader, per the EPRI Seismic Walkdown Guidance (Reference 1). As Peer Review Team Leader, he was responsible for the entire peer review process, including completion of the final peer review documentation in this report. The Peer Reviewers' qualifications are briefly summarized as follows:* Mr. Butler is a degreed mechanical engineer and has over twenty-five years of nuclear power experience.

Mr. Butler and has been trained as a Seismic Capability Engineer (EPRI SQUG training) and is the primary author of EPRI SQUG Guidelines for the use of the SQUG Generic Implementation Procedure (GIP) for new and replacement components and equipment.

• Ms. Schlaseman is a degreed civil/structural engineer and has over 30 years of nuclear power experience.

Ms. Schlaseman has been trained as a Seismic Capability Engineer and EPRI Seismic Walkdown Engineer (SWE), has performed USI A-46 (SQUG) seismic walkdowns for two stations, and is a principal investigator in (EPRI) document 1025286, "Seismic Walkdown Guidance:

For Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic," which is the guidance document for performing the walkdowns documented in this report.Peach Bottom Atomic Power Station Unit 3 F-4 MPR-3812, Revision 3 Correspondence No.: RS-12-173 Mr. Swanner is a degreed aerospace engineer with 20 years of nuclear plant experience.

Mr. Swanner has been trained as a Seismic Capability Engineer and EPRI Seismic Walkdown Engineer (SWE).Mr. Butler, Ms. Schlaseman and Mr. Swanner are registered professional engineers.

F.1.3 SWEL DEVELOPMENT The SWEL development was performed by Mr. Benjamin Frazier. The initial peer review of the SWEL development was performed by Mr. Butler and Mr. Swanner, and was conducted between August 2, 2012 and August 16, 2012. There were no comments as noted on the SWEL Peer Review Checklist and no findings were cited. The completed SWEL Peer Review Checklist is found in Attachment

1. The discussion for the SWEL development peer review is provided in Section 2. Note that due to equipment accessibility including ALARA and electrical safety concerns, changes to the SWEL were made as the walkdowns were conducted.

The Peer Review Team did review changes made during the walkdown and has reviewed the final SWEL included in Appendix B of the Walkdown Report. As noted in the SWEL Peer Review Checklist, there were no items from EPRI Equipment Classes 11, Chillers; 12, Air Compressors; or 13, Motor Generators.

This was because there is no safety-related Seismic Class I equipment in these classes at PBAPS Unit 3. Also, due to the significant number of modifications performed in the late 1990's as part of the USI A-46 (SQUG) and IPEEE programs, PBAPS Unit 3 has not made significant modifications to Seismic Class I equipment within the last several years.F.1.4 SEISMIC WALKDOWN The on-site peer review of the seismic walkdowns was performed by Mr. Butler and Ms. Schlaseman on August 30, 2012. The on-site and follow-up reviews included approximately 26% of the total SWCs and approximately 50% of the total AWCs applicable to the equipment for Unit 3 and common, including checklists, photos, and drawings where applicable.

Interviews were conducted with both teams of SWEs to assess conduct of the walkdowns and adherence to the EPRI Seismic Walkdown Guidance (Reference 1). The discussion of the review of the sample of Seismic Walkdown Checklists (SWCs) and Area Walk-By Checklists (AWCs) is provided in Section 3.The assessment of Issue Reports (IRs) with respect to current licensing basis is provided in Sections 5 and 6 of the report. These assessments and their outcomes were also discussed with the SWE inspection team in order to completely understand the issues.Peach Bottom Atomic Power Station Unit 3 F-5 MPR-3812, Revision 3 Correspondence No.: RS-12-173 F.2 Peer Review -Selection of SSCs F.2.1 PURPOSE The purpose of this section is to describe the process to perform the peer review of the selected structures, systems, and components, (SSCs) that were included in the Seismic Walkdown Equipment List (SWEL).F.2.2 PEER REVIEW ACTIVITY -SELECTION OF SSCs The guidance in Section 3 of the EPRI Seismic Walkdown Guidance (Reference

1) was used as the basis for this review.This peer review of SWEL 1 was based on reviews of preliminary documents provided by the SWEL preparer, Mr. Benjamin Frazier. Additionally, the Peer Reviewers, Mr. Butler and Mr. Swanner, interviewed Mr. Frazier. Reference 1 Appendix F: "Checklist for Peer Review of SSC Selection," was used by the Peer Reviewers to guide their review.For SWEL 1 development, the following actions were completed in the peer review process:* Verification that the SSCs selected represented a diverse sample of the ,equipment required to perform the following five safety functions:

o Reactor Reactivity Control o Reactor Coolant Pressure Control o Reactor Coolant Inventory Control o Decay Heat Removal o Containment Function This peer review determined that the SSCs selected for the seismic walkdowns represent a diverse sample of equipment required to perform the five safety functions.

• Verification that the SSCs selected include an appropriate representation of items having the following sample selection attributes:

o Various types of systems o Major new and replacement equipment (there are none)o Various types of equipment o Various environments o Equipment enhanced based on the findings of the IPEEE (or USI A-46)o Risk insight consideration Peach Bottom Atomic Power Station Unit 3 F-6 MPR-3812, Revision 3 Correspondence No.: RS-12-173 This peer review determined that the SSCs selected for the seismic walkdowns include an appropriate sample of items that represent each attribute/consideration identified above. The justification for this conclusion is: a) Based on a review of the UFSAR and SWEL 1 list, it was determined that an appropriate variety of equipment and systems are represented (e.g., HPCI, RCIC, Core Spray, RHR, CRD Scram Hydraulic, High Pressure Service Water, Batteries);

b) The SWEL identifies that there are no "New and Replacement" equipment; c) A variety of location environments are included (e.g., Diesel Rooms, Reactor Building, Drywell, Turbine Building, Screen House, Pump Structure);

d)The SWEL identifies several items of equipment that were enhanced as a result of IPEEE; and e) Risk Significant equipment items are identified on the SWEL. Additional details for these conclusions are presented in Attachment 1: Peer Review Checklist for SWEL.There are no SWEL 2 items for PBAPS Unit 3. To confirm the appropriateness of this conclusion, the following actions were completed in the peer review process: Verification that spent fuel pool (SFP) related Seismic Class I SSCs were considered and appropriate justification was documented for why these items were not added to the SWEL 2.This peer review determined that there are no spent fuel pool related items that are Seismic Class I.Verification that the potential for rapid drain down of the SFP was considered in accordance with the Reference 1 guidance, and appropriate justification was documented for no items being added to SWEL 2.This peer review determined that appropriate consideration and justification were provided for there being no items identified that could result in rapid drain down. There are no SFP penetrations that could result in rapid draindown, and Fuel Pool Cooling and Cleanup piping includes holes specifically intended to prevent siphoning and draindown of the spent fuel pool (See Section 4.3 of the Report as well as Attachment 1 to this Appendix).

F.2.3 PEER REVIEW FINDINGS -SELECTION OF SSCs This peer review found that the process for selecting SSCs that were added to the SWEL was consistent with the process outlined in Section 3 of Reference 1.The Peer Review Checklist is attached to this document with additional observations documented as appropriate.

There were no comments or observations on the SWEL.This peer review resulted in no findings.F.2.4 RESOLUTION OF PEER REVIEW COMMENTS -SELECTION OF SSCS All comments requiring resolution were incorporated prior to completion of this peer review.Peach Bottom Atomic Power Station Unit 3 F-7 MPR-3812, Revision 3 Correspondence No.: RS-12-173 F.

2.5 CONCLUSION

OF PEER REVIEW -SELECTION OF SSCs This peer review concludes that the process for selecting SSCs to be included on the seismic walkdown equipment list appropriately followed the process outlined in Reference 1, Section 3: Selection of SSCs. It is further concluded that the SWEL sufficiently represents a broad population of plant Seismic Class I equipment and systems to meet the objectives of the NRC 50.54(f) Letter.-Vxe"-BUAL Peer Reviewer: Date 10/15/2012 Peer Reviewer: Date 10/23/2012 Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.: RS-12-173 F-8 F.3 Review of Sample Checklist

& Area Walk-Bys The on-site and follow-up peer reviews of the seismic walkdowns were performed for PBAPS Unit 3 by Mr. Patrick Butler, Ms. Caroline Schlaseman and Mr. Craig Swanner.The Peer Review Team reviewed Seismic Walkdown Checklists (SWC) and Area Walk-by Checklists (AWC) that were performed for Peach Bottom Unit 3 and Common equipment, and interviewed the walkdown team members regarding details in checklists.

For Unit 3, there were two walkdown teams, which each consisted of two Seismic Walkdown Engineers (SWEs). The first team consisted of Mr. Benjamin Frazier and Mr.Mojtaba Oghbaei. The second team consisted of Mr. James Wiggin and Mr. Kevin Gantz. During the second week of walkdowns, Mr. Craig SwannerI replaced Mr. Oghbaei.Table F.3-1 lists the Peach Bottom Unit 3 and Common SWC and AWC sampling during the on-site and follow-up reviews. The SWCs and AWCs reviewed represent approximately 26% of the SWCs and approximately 50% of the AWCs applicable to this equipment for Unit 3 and Common, which exceeds the EPRI Guidance (Reference 1)requirement of a 10% to 25% sample.Table F.3-1. Table of SWC and AWC Samples from Seismic Walkdown Equipment ID Description Equipment Class Location Observations (Applicable Area Walkby)3AC65 RPS Instrument (18) Instruments Reactor Building, No issues with the (AWC U3-7) Rack on Racks/Not on Room R3-40, El. SWC or AWC Racks 165' applicable to this equipment or its conclusions were identified.

3AE55 RCIC Room (10) Air Handlers Reactor Building, No issues with the (AWC U3-12) Cooling Coil A Room R3-14, El. SWC orAWC 91' applicable to this equipment or its conclusions were identified.

1 Mr. Craig Swanner replaced Mr. Oghbaei on the first team for the second week of walkdowns.

Ms. Caroline Schlaseman (in addition to Mr. Butler) served as the second peer reviewer for these SWCs and AWCs. Six SWCs and one AWC were prepared at the end of the second week by Mr. Ben Frazier and Ms. Schlaseman, who replaced Mr. Swanner for one day. For these six SWCs and one AWC, Mr. Butler and Mr. Swanner served as the peer reviewers.

Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.: RS-12-173 F-9 Table F.3-1. Table of SWC and AWC Samples from Seismic Walkdown Equipment ID Description Equipment Class Location Observations (Applicable Area Walkby)3AP037 Core Spray (06) Vertical Reactor Building, No issues with the (AWC U3-11) Pump A Pumps Room R3-9, El. 88' SWC or AWC applicable to this equipment or its conclusions were identified.

3AV083 HPSW Pump (09) Fans Pump Structure, No issues with the (AWC U3-3) Room Exhaust Room P/H-9, El. SWC or AWC Fan 112' applicable to this equipment or its conclusions were identified.

3BDO1 125 VDC (15) Batteries and Turbine Building, No issues with the (AWC U3-10) Battery 3B Racks Room T3-169, El. SWC or AWC 135' applicable to this equipment or its conclusions were identified.

3BE57 Core Spray (10) Air Handlers Reactor Building, No issues with the (AWC U3-11) Room A Cooling Room R3-9, El. 91' SWC or AWC Coil B applicable to this equipment or its conclusions were identified.

3CD03 Battery Charger (16) Battery Turbine Building, No issues with the (AWC U3-9) 3C Chargers and Room T3-170, El. SWC or AWC Inverters 135' applicable to this equipment or its conclusions were identified 30D043 HPCI Aux Lube (20) Control Reactor Building, No issues with the (AWC U3-8) Oil Pump Starter Panels and Room R3-13, El. SWC or AWC Cabinets 88' applicable to this equipment or its conclusions were identified.

Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.: RS-12-173 F-1 0 Table F.3-1. Table of SWC and AWC Samples from Seismic Walkdown Equipment ID Description Equipment Class Location Observations (Applicable Area Walkby)30X133 Panel 30Y33 (04) Transformers Turbine Building, No issues with the (AWC U3-5) Transformer T3-171, El. 135' SWC orAWC applicable to this equipment or its conclusions were identified.

30C087 HPCI Instrument (18) Instruments Reactor Building, No issues with the (AWC U3-4) Rack on Racks Room R3-15, El. SWC orAWC 88' applicable to this equipment or its conclusions were identified.

M03-30-3233A Unit 3A Sluice (8A) Motor Screenhouse, No issues with the (AWC U3-25) Gate Operated Valves Room S/H-4, El. SWC or AWC 116' applicable to this equipment or its conclusions were identified.

H03-23C-5512 HPCI Turbine (07) Fluid Reactor Building, No issues with the (AWC U3-8) Governor (Air/Hyd)

Valves Room R3-13, El. SWC or AWC Control Valve 88' applicable to this equipment or its conclusions were identified.

RV3-23-034 HPCI Pump (07) Fluid Reactor Building, No issues with the (AWC U3-8) Suction Header (Air/Hyd)

Valves Room R3-13, El. SWC or AWC Relief Valve 88' applicable to this equipment or its conclusions were identified.

30B324 MO-3-23-015 (01) Motor Control Turbine Building, No issues with the (AWC U3-15) Motor Control Centers MG Set Room, El. SWC or AWC Power Transfer 135' applicable to this Switch equipment or its conclusions were identified.

Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.:- RS-12-173 F-11 Table F.3-1. Table of SWC and AWC Samples from Seismic Walkdown Equipment ID Description Equipment Class Location Observations (Applicable Area Walkby)30B013 Emergency Aux (02) Low Voltage Reactor Building, No issues with the (AWC U3-24) Load Center Switchgear Room R3 El. SWC or AWC E434 165' applicable to this equipment or its conclusions were identified.

30P033 & HPCI Booster (05) Horizontal Reactor Building, No issues with the 30P038 Pump and HPCI Pumps Room R3-13, El. SWC orAWC (AWC U3-8) Pump 88' applicable to this equipment or its conclusions were identified.

30Y050 120V AC (14) Distribution Turbine Building, No issues with the (AWC U3-22) Distribution Panels Room T3-81, El. SWC or AWC Panel 150' applicable to this equipment or its conclusions were identified.

0AV036 Battery Room (09) Fans Radwaste Building, No issues with the (AWC UO-10) Exhaust Fan A Room RIW-32, El. SWC or AWC 165' applicable to this equipment or its conclusions were identified.

0AP163 Emergency (05) Horizontal Diesel Generator No issues with the (AWC UO-1) Service Water Pump Building, Room SWC or AWC Booster Pump A D/G-i, El. 121' applicable to this equipment or its conclusions were identified.

MO-0-33-0498 ESW Return to (08a) Motor Diesel Generator No issues with the (AWC U0-1) Discharge Pond Operated Valves Building, Room SWC orAWC D/G-2, El. 121' applicable to this equipment or its conclusions were identified.

Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.: RS-12-173 F-1 2 Table F.3-1. Table of SWC and AWC Samples from Seismic Walkdown Equipment ID Description Equipment Class Location Observations (Applicable Area Walkby)0AG012 El Standby (17) Engine Diesel Generator No issues with the (AWC UO-2) Diesel Generators Building, Room SWC or AWC Generator D/G-3, El. 127' applicable to this equipment or its conclusions were identified.

OAP060 El D/G Fuel Oil (05) Horizontal Diesel Generator No issues with the (AWC UO-2) Transfer Pump Pumps Building, Room SWC or AWC DIG-3, El. 127' applicable to this equipment or its conclusions were identified.

TCV-052E-D/G Jacket (07) Fluid Diesel Generator No issues with the 7239A Water Coolant (Air/Hyd)

Valves Building, Room SWC or AWC (AWC U0-2) 3-Way D/G-3, El. 127' applicable to this Thermostatic equipment or its Control Valves conclusions were identified.

0AC097 Diesel (20) Control Diesel Generator No issues with the (AWC U0-2) Generator Panels & Cabinets Building, Room SWC orAWC OAG12 Control D/G-3, El. 127- applicable to this Panel equipment or its conclusions were identified.

0AT096 El Diesel (21) Horizontal Diesel Generator No issues with the (AWC UO-2) Generator Lube Tanks or Heat Building, Room SWC or AWC Oil Storage Exchangers D/G-3, El. 127' applicable to this Tank equipment or its conclusions were identified.

0BK032 Emergency (09) Fans Emergency Cooling No issues with the (AWC U0-3) Cooling Tower Towers, Room SWC or AWC Fan B ECT-6, El. 195' applicable to this equipment or its conclusions were identified.

Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.: RS-12-173 F-13 Table F.3-1. Table of SWC and AWC Samples from Seismic Walkdown Equipment ID Description Equipment Class Location Observations (Applicable Area Walkby)MO-48-0501A ESW A Inlet to (08a) Motor Emergency Cooling No issues with the (AWC U0-4) ECT Reservoir Operated Valves Towers, Room SWC or AWC ECT-1, El. 114' applicable to this equipment or its conclusions were identified.

SV3-3-33 Instrument Air (8b) Solenoid Reactor Building, No issues with the (AWC U3-13) Solenoid Valve Operated Valves Room R3-22, El. SWC or AWC 135' applicable to this equipment or its conclusions were identified.-VaAt'ý& -DUAL Peer Reviewer: Date 10/15/2012 Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.: RS-12-173 F-14 F.4 Review of Licensing Basis Evaluations There were no instances identified during the walkdowns where evaluated components could not readily be shown to meet the plant seismic licensing basis. Accordingly, no licensing basis evaluations to determine if equipment complied with current seismic licensing basis requirements were required.

However, there were some anomalies or conditions adverse to quality identified during the walkdowns.

Tables 5-2 and 5-3 in the main body of the report provide a list of the anomalies encountered during the Unit 3 seismic walkdown inspections and how they were addressed.

j24~WbuA Peer Reviewer: Date 10/15/2012 Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.: RS-12-173 F-15 F.5 References

1. EPRI Technical Report 1025286, Seismic Walkdown Guidance for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, dated June 2012.Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.: RS-12-173 F-16 Attachment 1: Peer Review Checklist for SWEL Peer Review Checklist for SWEL -Peach Bottom Atomic Power Station Unit 3 Instructions for Completing Checklist This peer review checklist may be used to document the review of the Seismic Walkdown Equipment List (SWEL) in accordance with Section 6: Peer Review. The space below each question in this checklist should be used to describe any findings identified during the peer review process and how the SWEL may have changed to address those findings.

Additional space is provided at the end of this checklist for documenting other comments.1. Were the five safety functions adequately represented in the SWEL 1 selection?

YE NEi All five safety functions were included in the SWEL Selection.

2. Does SWEL 1 include an appropriate representation of items having the following sample selection attributes:

a. Various types of systems? YO NE A wide variety of systems were represented including Residual Heat Removal, Reactor Core Isolation Cooling, Core Spray, High Pressure Coolant Injection, Control Drive Hydraulic, High Pressure Service Water, 125 VDC, 120 VAC, 480 VA C.b. Major new and replacement equipment?

YE N[l Due to the significant number of modifications performed in the late 1990's as part of the USI A-46 (SQUG) and IPEEE programs, PBAPS Unit 3 has not made significant modifications to Seismic Class I equipment within the last several years.Accordingly, SWEL I does not identify any new or replacement components.

c. Various types of equipment?

YE NE]All of the EPRI equipment classes are represented with the exception of Classes#11 Chillers, #12 Air Compressors, and #13 Motor Generators.

No Seismic Class I equipment in these three classes were identified at PBAPS Unit 3.d. Various environments?

YED NR Equipment in various environments including the Reactor Building, Control Structure, Screen House, Pump Structure, Turbine Building, Diesel Generator Building and Drywell are included.e. Equipment enhanced based on the findings of the IPEEE (or equivalent)

YE NEI program?The Unit 3 SWEL includes a sample of equipment items that were enhanced based on findings of the USI A-46 (SQUG) and IPEEE programs (see Sections 4.2 and 7 of the Report).Peach Bottom Atomic Power Station Unit 3 F-1 7 MPR-3812, Revision 3 Correspondence No.: RS-12-173 Peer Review Checklist for SWEL -Peach Bottom Atomic Power Station Unit 3 f. Were risk insights considered in the development of SWEL 1? YE NEI The plant Probabilistic Risk Assessment (PRA) was reviewed and used to guide selection of the components on SWEL 1. Specifically, the relative risk significance of candidate components including the Risk Achievement Worth (RAW) and Fussell-Vesely importance for a Loss of Off-Site Power (LOOP) scenario from the internal plant PRA were used (See Section 4.2 of the report).3. For SWEL 2: a. Were spent fuel pool related items considered, and if applicable included in Y[Z NEI SWEL 2?Both parts of SWEL 2, assessment of Seismic Class I spent fuel pool (SFP) related equipment and equipment that could potentially result in rapid drain-down of the SFP were considered.

There is no equipment in either category.

See documentation of SFP item review in Section 4.3 of the Report.b. Was an appropriate justification documented for spent fuel pool related items YZ NEI not included in SWEL 2?As noted in Section 4.3 of the report, there is no Seismic Class I spent fuel pool related equipment.

Section 4.3 also includes appropriate justification that there are no items of equipment that could cause rapid drain-down due to lack of penetrations within about 10 feet above the top of the fuel racks, and there are adequate anti-syphon features included in piping that terminate within a few feet of the tops of the fuel racks.4. Provide any other comments related to the peer review of the SWELs.The Peer Review team had no comments on the SWEL.5. Have all peer review comments been adequately addressed in the final SWEL?YO NEI Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.: RS-12-173 F-1 8 Peer Review Checklist for SWEL -Peach Bottom Atomic Power Station Unit 3 Peer Reviewer#1: Peer Reviewer#2: Patrick Butler, P.E.2Cf. 4 L Date: 10/15/2012 Craig Swanner, P.E.4,9-Date: 10/23/2012 Peach Bottom Atomic Power Station Unit 3 MPR-3812, Revision 3 Correspondence No.: RS-12-173 F-1 9 U.S. Nuclear Regulatory Commission 180-Day Response to 50.54(f) Letter NTTF Recommendation 2.3: Seismic November 19, 2012 Page 7 Enclosure 3

SUMMARY

OF REGULATORY COMMITMENTS The following table identifies commitments made in this document. (Any other actions discussed in the submittal represent intended or planned actions. They are described to the NRC for the NRC's information and are not regulatory commitments.)

COMMITTED COMMITMENT TYPE COMMITMENT DATE OR ONE-TIME ACTION PROGRAMMATIC

'OUTAGE' (Yes/No) (Yes/No)1. Exelon Generation Company, LLC (EGC) will 3Q2013 Yes No complete the walkdown of the one (1) (September 30, PBAPS Unit 2 item deferred due to 2013)inaccessibility.

2. EGC will complete the supplemental May 31, 2015 Yes No inspections of the three (3) PBAPS Unit 2 electrical items identified in Tables E-2 and E-3. _3. EGC will complete the walkdown of the P3R19 Yes No thirteen (13) PBAPS Unit 3 items deferred Fall 2013 due to inaccessibility.

4. EGC will complete the supplemental May 31, 2015 Yes No inspections of the six (6) PBAPS Unit 3 electrical items identified in Tables E-2 and E-3.