ML100050362

B1R16 Lsi Outage Report - Form NIS-1 Owner'S Report for Inservice Inspections

ML100050362
Person / Time
Site:	Byron
Issue date:	12/17/2009
From:	Exelon Generation Co, Exelon Nuclear
To:	Office of Nuclear Reactor Regulation
Shared Package
ML10050354	List: BYRON 2010-0001, Form NIS-2 Owner'S Report for Repair/Replacement Actitivity as Required by the Provisions of the ASME Code Section XI ML100050362
References
BYRON 2010-0001
Download: ML100050362 (35)

Text

This page left blank intentionally

,,,

12117/2009 1.Owner: 2.Plant: Exelc;np'Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 1 of 34)Exelon Generation Company,(EGC,LLC),4300Winfield Road, Warrenville, Illinois 60555 (Name and Address 01 Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address 01 Plant)3.Plant Unit: 1 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Containment Spray System (CS)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 CS-01-PA/L 1 Ingersoll-Rand 49770 N/A N/A 1 CS-01-PA/l2 Ingersoll-Rand 49770 N/A N/A 1 CS-01-P A/L3 Ingersoll-Rand 49770 N/A N/A Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded atthetop of this form.Computer Generated Form 12117/2009 1.Owner: 2.Plant:

..Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 2 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 1 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Chemical&Volume Control System (CV)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1CVA3AA-2/W-06 Hunter Corp.1-CV-1-N5 NA NA 1CVA3AA-2/W-07 Hunter Corp.1-CV-1-N5 NA NA 1CVA3B-2/W-74 Hunter Corp.1-CV-1-N5 NA NA 1CVA3B-2/W-75 Hunter Corp.1-CV-1-N5 NA NA 1 CVA3B-2/W-76 Hunter Corp.1-CV-1-N5 NA NA 1CVA3B-2/W-77 Hunter Corp.1-CV-1-N5 NA NA 1 CVA3B-2/W-84 Hunter Corp.1-CV-1-N5 NA NA 1CVA3B-2/W-85 Hunter Corp.1-CV-1-N5 NA NA 1 CVA5AA-2/W

-04 Hunter Corp.1-CV-1-N5 NA NA 1 CVA5AA-2/W

-05 Hunter Corp.1-CV-1-N5 NA NA 1CVA6AA-2/W-04 Hunter Corp.1-CV-1-N5 NA NA 1 CVA6AA-2/W

-05 Hunter Corp.1-CV-1-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8112 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded at the top of this form.Computer Generated Form 12117/2009 1.Owner: 2.Plant: Exelc;n..Byron Station Unit 1 B1 R16 151 Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 3 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 1 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Chemical&Volume Control System (CV)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1CVA7AA-2/W-08 Hunter Corp.1-CV-1-N5 NA NA 1 CVA 7 AA-2/W-09 Hunter Corp.1-CV-1-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded at the top of this form.computer Generated Form 12117/2009 1.Owner: 2.Plant: Exelon-Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 4 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.NationalBoard Number for Unit: N/A N-198 7.Components Inspected:

Chemical&Volume Control System (CV)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1CV05CB-Pacific Scientific 24388 NA NA 6/1 CV08013S 1CV05CB-Pacific Scientific 20451 NA NA 6/1 CV08021 S 1CV15AB-Pacific Scientific 33927 NA NA 3/4/1 CV28002S 1CV15AB-Pacific Scientific 12471 NA NA 3/4/1 CV28003S 1CV15AC-Pacific Scientific 1308 NA NA 3/4/1 CV29003S 1 CV45B-2/1 RY06124S Pacific Scientific 8030 NA NA 1 CVA3B-2/1 CV09005S Lisega 03615733/003 NA NA 1CVA7AA-Pacific Scientific 10179 NA NA 2/1 CV25009S 1CVA7AA-Pacific Scientific 8810 NA NA 2/1 CV25016S Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included oneachsheet, and (3)each sheet is numbered and the number of sheets is recorded atthetop of this form.Computer Generated Form 12117/2009 1.Owner: 2.Plant: Exelon...Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 5 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Feedwater System (FW)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 FW 03DC-16/C03 Hunter Corp.1-FW-1-N5 NA NA 1 FW03DC-16/C030 Bechtel Power Corp.1-FW-1-N5 NA NA 1 FW03DC-16/C17 Hunter Corp.1-FW-1-N5 NA NA 1 FW03DC-16/C18 Hunter Corp.1-FW-1-N5 NA NA 1 FW03DD-16/C26.01 Bechtel Power Corp.1-FW-1-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches.or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded at the top of this form.computer Generated Form 12117/2009 1.Owner: 2.Plant:

Byron Station Unit 1 B1R16 FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 6 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 1 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Main Steam System (MS)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 MS01 BB-32.75/C04 Hunter Corp.1-MS-1-N5 NA NA 1 MS01 BB-32.75/C05 Hunter Corp.1-MS-1-N5 NA NA 1 MS07 AB-28/C01 Hunter Corp.1-MS-1-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded at the top of this form.Computer Generated Form 12117/2009 1.Owner: 2.Plant:

Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 7 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 1 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.NationalBoard Number for Unit: N/A N-198 7.Components Inspected:

Main Steam System (MS)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1MS01AB-Pacific Scientific 10508 NA NA 32.75/1 MS06007-S1 1 MS01AB-Pacific Scientific 10496 NA NA 32.75/1 MS06007-S2 Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used.provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded at the top of this form.Computer Generated Form 12117/2009 1.Owner: 2.Plant: Exelon..Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 8 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Reactor Coolant System (RC)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 RC80020/FLG SURF Hunter Corp.1-RC-1-N5 NA NA 1 RC80020/lNT SURF Hunter Corp.1-RC-1-N5 NA NA 1 RC80020/NBW 1-24 Hunter Corp.1-RC-1-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded atthetop of this form.Computer Generated Form 12117/2009 1.Owner: 2.Plant: ExelCJn-Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 9 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 1 4.Owner Certificate Of Authorization (if required):

5.Commercial Service Date: 09/16/85 6.National Board Number for Unit: 7.Components Inspected:

Reactor Coolant System (RC)N/A N-198 Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1-RC-1-1 Hunter Corp.N/A N/A N/A Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included oneachsheet, and (3)each sheet is numbered and the number of sheets is recorded atthetop of this form.Computer Generated Form 12117/2009 1.Owner: 2.Plant: Exelon_Byron Station Unit 1 B1 R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 10 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Reactor Coolant System (RC)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 RC13AA-2/W-01 Hunter Corp.1-RC-1-N5 NA NA 1 RC13AA-2/W-02.01 W.A.Pope Corp.1-RC-1-N5 NA NA 1 RC13AA-2/W-03 Hunter Corp.1-RC-1-N5 NA NA 1 RC13AA-2/W-04 Hunter Corp.1-RC-1-N5 NA NA 1 RC13AA-2/W-05 Hunter Corp.1-RC-1-N5 NA NA 1 RC13AB-2/W-01 Hunter Corp.1-RC-1-N5 NA NA 1 RC13AB-2/W-09 Hunter Corp.1-RC-1-N5 NA NA 1 RC13AC-2/W-01 Hunter Corp.1-RC-1-N5 NA NA 1 RC13AD-2/W-01 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AA-2/W-02 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AA-2/W-03 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AA-2/W-03A Hunter Corp.1-RC-1-N5 NA NA Note (1): Baseline Exam ination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in..(2)information in items 1 through 6 of this report is included oneachsheet, and (3)each sheet is numbered and the number of sheets is recorded at the top of this form.Computer Generated Form 12117/2009 1.Owner: 2.Plant:

Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 11 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Reactor Coolant System (RC)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 RC14AA-2/W-03B Hunter Corp.1-RC-1-N5 NA NA 1 RC14AA-2/W-03C Hunter Corp.1-RC-1-N5 NA NA 1 RC14AA-2/W-04 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AA-2/W-05 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AA-2/W-06 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AA-2/W-07 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AA-2/W-08 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AA-2/W-09 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AA-2/W-10 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AA-2/W-11 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AA-2/W-12 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AA-2/W-13 Hunter Corp.1-RC-1-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists.sketches.or drawings may be used.provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded at the top of this form.computer Generated Form 12117/2009 1.Owner: 2.Plant: Exelon..Byron Station Unit 1 B1 R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 12 of 34)Exelon Generation Company,(EGC,LLC),4300Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Reactor Coolant System (RC)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No./1 RC14AB-2/W-07 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AB-2IW-08 Hunter Corp.1-RC-1-N5 NA NA 1 RC 14AB-2/W-09 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AB-2/W-10 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AB-2IW-11 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AC-2IW

-08 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AD-2/W-08 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AD-2IW-09 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AD-2/W-10 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AD-2/W-11 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AD-2/W-12 Hunter Corp.1-RC-1-N5 NA NA 1 RC14AD-2/W-13 Hunter Corp.1-RC-1-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded at the top of this form.Computer Generated Form 12117/2009 1.Owner: 2.Plant: Exelon..Byron Station Unit 1 B1 R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 13 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.NationalBoard Number for Unit: N/A N-198 7.Components Inspected:

Reactor Coolant System (RC)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 RC16AA-2/W-02 Hunter Corp.1-RC-1-N5 NA NA 1 RC16AA-2IW-03 Hunter Corp.1-RC-1-N5 NA NA 1 RC16AA-2/W-04 Hunter Corp.1-RC-1-NS NA NA 1 RC16AA-2IW-05 Hunter Corp.1-RC-1-N5 NA NA 1 RC16AA-2/W-06 Hunter Corp.1-RC-1-N5 NA NA 1 RC16AA-2IW-07 Hunter Corp.1-RC-1-NS NA NA 1 RC16AA-2/W-08 Hunter Corp.1-RC-1-NS NA NA 1 RC16AB-2/W-02 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-01 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.S/W-02 Hunter Corp.1-RC-1-NS NA NA 1 RC22AA-1.5/W-03 Hunter Corp.1-RC-1-NS NA NA 1 RC22AA-1.S/W-04 Hunter Corp.1-RC-1-NS NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included oneachsheet, and (3)each sheet is numbered and the number of sheets is recorded at the top of this form.computer Generated Form 12117/2009 1.Owner: 2.Plant: xelon..Byron Station Unit 1 B1R16 151 Outage Report FORM NIS-l OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 14 of 34)ExelonGenerationCompany,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Reactor Coolant System (RC)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 RC22AA-1.5/W-05 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-06 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-07 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-08 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W

-09 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W

-10 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-11 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-12 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-13.01 NPSW Venture Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-14.01 NPSW Venture Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-15.01 NPSW Venture Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W

-16.01 NPSW Venture Corp.1-RC-1-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches.or drawings may be used.prOVided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included oneachsheet.

and (3)each sheet is numbered and the number of sheets is recorded at the top of this form.Computer Generated Form 12117/2009 Byron Station Unit 1 B1 R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 15 of 34)1.Owner: 2.Plant: Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 1 4.Owner Certificate Of Authorization (if required):

5.Commercial Service Date: 09/16/85 6.National Board Number for Unit: 7.Components Inspected:

Reactor Coolant System (RC)N/A N-198 Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 RC22AA-1.5/W-17 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-18 Hunter Corp.1-RC-1-N5 NA NA1RC22AA-1.5/W-19 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-20 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-21 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W

-22 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-23 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-24 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W

-25 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-26 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-27 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-28 Hunter Corp.1-RC-1-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded at the top of this form.Computer Generated Form 12117/2009 1.Owner: 2.Plant: Exelon..Byron Station Unit 1 B1R16 151 Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 16 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 1 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Reactor Coolant System (RG)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 RC22AA-1.5/W

-29 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W

-30 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-31 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W-32 Hunter Corp.1-RC-1-N5 NA NA 1 RC22AA-1.5/W

-33 Hunter Corp.1-RC-1-N5 NA NA 1 RC28A-3/J02 Hunter Corp.1-RC-1-N5 NA NA 1 RC28A-3/J03 Hunter Corp.1-RC-1-N5 NA NA 1 RC28A-3/J04 Hunter Corp.1-RC-1-N5 NA NA 1 RC28A-3/J05 Hunter Corp.1-RC-1-N5 NA NA 1 RC30AC-1.5/W

-01.01 Hunter Corp.1-RC-1-N5 NA NA 1 RC30AD-1.5/W-01.01 Hunter Corp.1-RC-1-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included oneachsheet, and (3)each sheet is numbered and the number of sheets is recorded at the top of this form.computer Generated Form 1 12117/2009 1.Owner: 2.Plant: ExelCln..Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 17 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.NationalBoard Number for Unit: N/A N-198 7.Components Inspected:

Reactor Coolant System (RC)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 RC01 BA-1 A/1 RC06S Paul Munroe PO-1423-333 NA NA 1 RC01 BA-1 A/1 RC07S Paul Munroe PO-1423-322 NA NA 1 RC01 BB-1 B/1 RC08S Paul Munroe PO-1423-329 NA NA 1 RC01 BB-1 B/1 RC09S Paul Munroe PO-1423-327 NA NA 1 RC01 BC-1 C/1 RC1 OS Paul Munroe PO-1423-334 NA NA 1 RC01 BC-1 C/1 RC11 S Paul Munroe PO-1423-331 NA NA 1 RC01 BO-1 0/1 RC12S Paul Munroe PO-1423-321 NA NA 1 RC01 BO-1 0/1 RC 13S Paul Munroe PO-1423-318 NA NA 1 RC08AB-Pacific Scientific 2619 NA NA 3/4/1 RC17025S 1 RC08AO-Pacific Scientific 29021 NA NA 3/4/1 RC19023S 1 RC14AB-Pacific Scientific 13091 NA NA 2/1CV15040S 1RC14AC-Pacific Scientific 12037 NA NA 2/1 CV09066S Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded at the top of this form.computer Generated Form 12117/2009 1.Owner: 2.Plant: Exelon_Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 18 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address oi Plant)3.Plant Unit: 1 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Reactor Coolant System (RC)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1RC14AD-Pacific Scientific 1661 NA NA 2/1 CV25034S 1 RC16AA-PacificScientific 9665 NA NA 2/1 CV12006S 1 RC20AA-PacificScientific 10423 NA NA 3/4/1 RC16010S 1 RC20AB-Pacific Scientific 14748 NA NA 3/4/1 RC17012S 1 RC20AD-Pacific Scientific 10404 NA NA 3/4/1 RC 19004S 1RC21AC-Pacific Scientific 4618 NA NA 8/1 RC03006S 1 RC22AA-Pacific Scientific 10191 NA NA 1.5/1 RC16016S 1 RC22AB-Pacific Scientific 7692 NA NA 1.5/1 RC17003S 1 RC24AB-Pacific Scientific 7237 NA NA 4/1 RY06032S Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, proVided (1)size is 81/2 in.x 11 in., (2)information in items 1 through 6 of this report Is included oneachsheet, and (3)each sheet is numbered and the number of sheets is recorded atthetop of this form.computer Generated Form 12117/2009 1.Owner: 2.Plant:

Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 19 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 1 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Residual Heat Removal System (RH)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 RH01 CA-16/C03 Hunter Corp.1-RH-2-N5 NA NA 1 RH02AA-8/C34 Hunter Corp.1-RH-2-N5 NA NA 1 RH-02-AB/RHES-01JosephOat Corp.2267-1 B U122327 837 1 RH02AB-8/C02 Hunter Corp.1-RH-2-N5 NA NA 1 RH03AB-8/C11 Hunter Corp.1-RH-2-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in, x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded atthetop of this form.Computer Generated Form 12117/2009 1.Owner: 2.Plant: Exelcn..Byron Station Unit 1 B1 R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 20 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address 01 Plant)3.Plant Unit: 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Reactor Coolant System (RY)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 RY03BA-6/FLG 1-12 Hunter Corp.1-RY-1-N5 NA NA 1 RY03BB-6/FLG 1-12 Hunter Corp.1-RY-1-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included oneachsheet, and (3)each sheet is numbered and the number of sheets is recorded at the top of this form.computer Generated Form 1 12117/2009 1.Owner: 2.Plant: Exelon.Byron Station Unit 1 B1 R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 21 of 34)Exelon Generation CompanY,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 1 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Reactor Coolant System (RY)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 RY01 B-6/J30 Hunter Corp.1-RY-1-N5 NA NA 1 RY01 B-6/J31 Hunter Corp.1-RY-1-N5 NA NA 1 RY01 C-4/J01 S Westinghouse Corp.1-RY-1-N5 NA NA 1 RY-01-S/PN-01-F1 S Westinghouse Corp.1-RY-1-N5 NA NA 1 RY-01-S/PN-02-F2S Westinghouse Corp.1-RY-1-N5 NA NA 1 RY-01-S/PN-04-F4S Westinghouse Corp.1-RY-1-N5 NA NA 1 RY-01-S/PN F5S Westinghouse Corp.1-RY-1-N5 NA NA 1 RY-01-S/PN-06-F6S Westinghouse Corp.1-RY-1-N5 NA NA 1 RY02A-6/J01 S Westinghouse Corp.1-RY-1-N5 NA NA 1 RY02A-6/J02 Hunter Corp.1-RY-1-N5 NA NA 1 RY02A-6/J04 Hunter Corp.1-RY-1-N5 NA NA 1 RY03AA-6/J01 S Westinghouse Corp.1-RY-1-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded atthetop of this form.Computer Generated Form 12117/2009 1.Owner: 2.Plant: Exelc;n..Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 22 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 1 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Reactor Coolant System (RY)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 RY03AB-6/J01 S Westinghouse Corp.1-RY-1-N5 NA NA 1 RY03AC-6/J01 S Westinghouse Corp.1-RY-1-N5 NA NA 1 RY11A-14/J01AS Westinghouse Corp.1-RY-1-N5 NA NA 1 RY18A-2/W-05A Hunter Corp.1-RC-1-N5 NA NA 1 RY18A-2IW-06 Hunter Corp.1-RC-1-N5 NA NA 1 RY18A-2/W-07 Hunter Corp.1-RC-1-N5 NA NA 1 RY18A-2/W-08 Hunter Corp.1-RC-1-N5 NA NA 1 RY18A-2/W-09 Hunter Corp.1-RC-1-N5 NA NA 1 RY18A-2/W-10 Hunter Corp.1-RC-1-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or draWings may be used, provided (1)size is 81/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded atthetop of this form.computer Generated Form 12117/2009 1.Owner: 2.Plant: Exelcn..Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 23 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Reactor Coolant System (RY)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 RY01AA-Pacific Scientific 20672 NA NA 4/1 RY06059S 1 RY01AA-Pacific Scientific 9256 NA NA 4/1 RY06121S 1 RY06A-3/1 RY09012S Pacific Scientific 9167 NA NA 1 RY18A-211 RY06097S Pacific Scientific 15029 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or draWings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded at the top of this form.computer Generated Form 12117/2009 1.Owner: 2.Plant:

..Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 24 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Steam Generator Blowdown System (SO)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1S001CE-Pacific Scientific 3124 NA NA 2/1 S022015S Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included oneachsheet, and (3)each sheet is numbered and the number of sheets is recorded atthetop of this form.Computer Generated Form 12117/2009 1.Owner: 2.Plant: Exelon..Byron Station Unit 1 B1R16 151 Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 25 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Steam Generator (SG)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 RC-01-BAlSGW

-02 Babcock&Wilcox Industries 7722-02 ILU-242904 165 Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is B 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded atthetop of this form.Computer Generated Form 12117/2009 Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 26 of 34)1.Owner: 2.Plant: Exelon Generation Company,(EGC,LLC),4300Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 1 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Safety Injection System (SI)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 SI8948B/BL T 1-18 Hunter Corp.1-SI-1-N5 NA NA 1 S18948B/INT SURF Hunter Corp.1-SI-1-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in.*(2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded atthetop of this form.computer Generated Form 12117/2009 Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 27 of 34)1.Owner: 2.Plant: Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Safety Injection System (SI)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 SI04A-12/1 SI18027X Hunter Corp.N/A N/A N/A Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded atthetop of this form.Computer Generated Form 12117/2009 1.Owner: 2.Plant: Exelon-Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 28 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 1 4.Owner Certificate Of Authorization (if required):

5.Commercial Service Date: 09/16/85 6.NationalBoard Number for Unit: 7.Components Inspected:

Safety Injection System (SI)N/A N-198 Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 SI02A-8/C11 Hunter Corp.1-SI-2-N5 NA NA 1 SI05AB-8/C14 Hunter Corp.1-SI-2-N5 NA NA 1 SI05AB-8/C15 Hunter Corp.1-SI-2-N5 NA NA 1 SI08B-4/C03 Hunter Corp.1-SI-2-N5 NA NA 1 SI08B-4/C04 Hunter Corp.1-SI-2-N5 NA NA 1 SI08B-4/C05 Hunter Corp.1-SI-2-N5 NA NA 1 SI08B-4/C06 Hunter Corp.1-SI-2-N5 NA NA 1SI08GC-1.5/W-01 Hunter Corp.1-SI-1-N5 NA NA 1SI08GC-1.5/W-02 Hunter Corp.1-SI-1-N5 NA NA 1 SI08GC-1.5/W

-03 Hunter Corp.1-SI-1-N5 NA NA 1 SI08GC-1.5/W-04 Hunter Corp.1-SI-1-N5 NA NA 1SI08GC-1.5/W-05 Hunter Corp.1-SI-1-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included oneachsheet, and (3)each sheet is numbered and the number of sheets is recorded atthetop of this form.Computer Generated Form 12117/2009 1.Owner: 2.Plant: Exelon-Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 29 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 1 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Safety Injection System (SI)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 SI08HA-2/W-01 Hunter Corp.1-SI-1-N5 NA NA 1 SI08HA-2/W

-02 Hunter Corp.1-SI-1-N5 NA NA 1 S108HA-2/W

-03 Hunter Corp.1-SI-1-N5 NA NA 1 SI08HA-2/W-04 Hunter Corp.1-SI-1-N5 NA NA 1 SIOaJA-1.5/W-06 Hunter Corp.1-SI-1-N5 NA NA 1 SIOaJA-1.5/W

-07 Hunter Corp.1-SI-1-N5 NA NA 1 SIOaJA-1.5/W

-08 Hunter Corp.1-SI-1-N5 NA NA 1 SIOaJA-1.5/W

-09 Hunter Corp.1-SI-1-N5 NA NA 1 SIOaJA-1.5/W-10 Hunter Corp.1-SI-1-N5 NA NA 1SIOaJA-1.5/W-11 Hunter Corp.1-SI-1-N5 NA NA 1SIOaJA-1.5/W-12 Hunter Corp.1-SI-1-N5 NA NA 1 SIOaJA-1.5/W-13 Hunter Corp.1-SI-1-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded at the top of this form.Computer Generated Form 12117/2009 1.Owner: 2.Plant: Exelonp<Byron Station Unit 1 B1R16 FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 30 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 1 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Safety Injection System (SI)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1SIOSJA-1.5/W-14 Hunter Corp.1-SI-1-N5 NA NA 1 SIOSJA-1.5/W-15 Hunter Corp.1-SI-1-N5 NA NA 1SI08JC-1.5/W-41.01 ShawS&W 1-SI-1-N5 NA NA 1 S108JC-1.5/W-42.01 Shaw S&W 1-SI-1-N5 NA NA 1 SI08JC-1.5/W-43.01 ShawS&W 1-SI-1-N5 NA NA 1 SI08JD-1.5/W-27.01 Shaw S&W 1-SI-1-N5 NA NA 1 SI08JD-1.5/W

-28.01 Shaw S&W 1-SI-1-N5 NA NA 1 SI08JD-1.5/W-29.01 ShawS&W 1-SI-1-N5 NA NA 1 SI34A-8/C01 Hunter Corp.1-SI-2-N5 NA NA 1 SI34A-8/C04 Hunter Corp.1-SI-2-N5 NA NA 1 SI34A-8/C05 Hunter Corp.1-SI-2-N5 NA NA 1SI82AA-12/C09 Hunter Corp.1-SI-2-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 81/2 in.x 11 in..(2)information in items 1 through 6 of this report is included oneachsheet, and (3)each sheet is numbered and the number of sheetsisrecorded at the top of this form.Computer Generated Form 1 1 1 1 1 1 12117/2009 1.Owner: 2.Plant: Exelon.Byron Station Unit 1 B1 R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 31 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 1 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Safety Injection System (SI)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 SI82AB-121C09 Hunter Corp.1-SI-2-N5 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded atthetop of this form.computer Generated Form 12117/2009 Byron Station Unit 1 B1 R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 32 of 34)1.Owner: 2.Plant: Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 1 5.Commercial Service Date: 4.Owner Certificate Of Authorization (if required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Safety Injection System (SI)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1 SI05DA-6/1 SI01 029S Pacific Scientific 7230 NA NA Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included on each sheet, and (3)each sheet is numbered and the number of sheets is recorded at the top of this form.Computer Generated Form 12117/2009 1.Owner: 2.Plant: Exelcn..Byron Station Unit 1 B1R16 lSI Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules (Page 33 of 34)Exelon Generation Company,(EGC,LLC), 4300 Winfield Road, Warrenville, Illinois 60555 (Name and Address of Owner)Byron Nuclear Power Station, 4450 North German Church Road, Byron, Illinois 61010 (Name and Address of Plant)3.Plant Unit: 1 5.Commercial Service Date: 4.Owner Certificate Of Authorization (If required):

09/16/85 6.National Board Number for Unit: N/A N-198 7.Components Inspected:

Essential Service Water System (SX)Component or Manufacturer Manufacturer State or National or Installer Appurtenance or Installer Serial No.Province No.Board No.1SX06CA-Hunter Corp.N/A N/A N/A 14/1 SX06005X 1SX06CA-Hunter Corp.N/A N/A N/A 14/1 SX06006X 1SX06EA-Hunter Corp.N/A N/A N/A 10/1 SX06015X Note (1): Baseline Examination Note (2): Snubber examined as a Component Support Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1)size is 8 1/2 in.x 11 in., (2)information in items 1 through 6 of this report is included oneachsheet, and (3)each sheet is numbered and the number of sheets is recorded atthetop of this form.computer Generated Form 12117/2009

..Byron Station Unit 1 B1R16 151 Outage Report FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS 8.Examination Dates: As Required by the Provisions of the ASME Code Rules (Page 34 of 34)(BACK)04/14/2008 to 10/08/2009 9.Inspection Period Identification:

10.Inspection Interval Identification:

First Insoection Period Third Insoection Interval 11.Applicable Edition of Section XI:_.....2""-00"'-'-1 Addenda---"2...,,0"'0""3'---

_12.Date I Revision of Inspection Plan: 08/15/2008 I-'..4_13.Abstract of Examinations and Test.Include a list of examinations and tests and a statement concerning status of work required for the Inspection Plan.Refer to the Outage Summary Report and lSI Program Plan 14.Abstract of Results of Examinations and Tests.Refer to the Outage Summary Report 15.Abstract of Corrective Measures.Refer to the Outage Summary Report We certify that a)the statements made in this report are correct, b)the examinations and tests meet the Inspection Plan as required by the ASME Code,Section XI, and c)corrective measures taken conform to the rules of the ASME Code,Section XI.Certificate of Authorization No.(if applicable):

_..:...:N::...:-/A-"--

Expiration Date: N/A Signed for:Exelon Generation Company Date:

By:

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford CT.have inspected the components described in this Owner's Report during the period 04/1412008 to 1010812009 ,and state that to the best of my knowledge and belief, the Owner has performed examinations and tests and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations,tests,and corrective measures described in this Owner's Report.Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

..Commissions:

__I_LL_-_1_2_54

_,20 tl9 National Board, State, Province, and Endorsements Computer Generated Form