First Quality Solutions

Size: px

Start display at page:

Download "First Quality Solutions"

Brett Banks
5 years ago
Views:

1 First Quality Solutions Turbine Inspection Reports

2 VISUAL EXAMINATION REPORT Customer: Sample Turbine Outage PO: Report No: S1 Component: Turbine Components WO: Code: N/A Material: Varied See below Preparation: Blasted Temperature: 70 F Weld Types: N/A Acceptance Standards: Cust. FQS Procedure: 002-Rev. 5 Visual Aids: Flashlight, mirror, ruler Technique: Direct Visual Component Acc. Rej. Remarks/Indications A LP Rotor X See below B LP Rotor X See below Diaphragm Assemblies X See below Shells & Casings* X See below Main Steam Stop Valve Assemblies X See below Windage Covers X See below Bolting & Studs X See below Generator Fan Blades X See below Summary of Inspection Performed: The components listed above were visually inspected for wear and general condition. In addition to the preliminary visual inspection each component received additional NDE inspections as indicated below, as directed by plant engineering. Technique sheets for each inspection performed can be found within. A LP Rotor WFMT Inspection, PT Inspection, UT Inspection B LP Rotor WFMT Inspection, PT Inspection, UT Inspection Diaphragm Assemblies WFMT Inspection Shells & Casings* WFMT Inspection on selected items Windage Covers Visible dye PT Inspection Bolting & Studs UT Inspection Generator Fan Blades Visible dye PT Inspection * The shells and casing inspected are as follows: A lower & upper shell B lower & upper shell LPA upper casing LPB upper casing Packing heads Packing Extension Cones Examiner: Gordon Austin Level: II Date: 12/20/2010 Examiner: Michael Schantz Level: II Date: 12/20/2010

3 A LP Rotor Visual Inspection The A LP Rotor was removed, blasted, and inspected at selected locations for damage and general condition. Technique sheets can be found within for the magnetic particle, liquid penetrant, and ultrasonic inspections. Listed below are the findings of the visual inspection. Wheels/Bolt holes Acceptable, no findings to report Dove Tails & Pins Acceptable, no findings to report Buckets o Generator End L-0 Minor impact damage noted at outer 18 on buckets 16, 18, 27, 49, 53, 54, 55, 56, 88, 89, 104, 105, & 106. L-1 Light erosion on the trailing edge of buckets & 56 88; minor mechanical gouging noted on buckets 38 & 77. L-2 Minor mechanical gouges noted on buckets 11, 16, 47, & 62. L-3 Acceptable, no findings to report. L-4 Acceptable, no findings to report. L-5 Minor mechanical gouging on the outside 2 typical of all buckets. o Turbine End L-0 Minor impact damage noted at out 18 on buckets 3, 4, 7, 8, 9, 26, 44, 49, 68, 69, 70, 106, 107, 108, 109, & 110; Damage noted on bucket 66, 6 from outside of bucket (sliver solder chipped and erosion shield pulling away from bucket). L-1 Light erosion on the trailing edge typical of each bucket. L-2 Light erosion on the trailing edge typical of each bucket. L-3 Minor mechanical gouging noted at buckets 10, 14, 22, & 35. L-4 Acceptable, no findings to report. L-5 Minor to moderate mechanical gouging on the outside 2 typical of all buckets. Tie Wires o Generator End L-0 Acceptable, no findings to report o Turbine End L-0 Silver solder damaged at buckets 19, 33 & 47. Stellite Erosion Shields o Generator End L-0 Minor porosity noted in silver solder on buckets 15 & 34. o Turbine End L-0 Silver solder chipped and erosion shield pulling away from bucket 66. B LP Rotor Visual Inspection The A LP Rotor was removed, blasted, and inspected at selected locations for damage and general condition. Technique sheets can be found within for the magnetic particle, liquid penetrant, and ultrasonic inspections. Listed below are the findings of the visual inspection. Wheels/Bolt holes Acceptable, no findings to report. Dove Tails & Pins Acceptable, no findings to report. Buckets o Generator End L-0 Minor impact damage noted at outer 12 on buckets 44, 47, 56, 57, 58, 59, 69, 70, 71, & 72. L-1 Acceptable, no findings to report.

L-2 Acceptable, no findings to report. L-3 Acceptable, no findings to report. L-4 Acceptable, no findings to report. L-5 Acceptable, no findings to report.

4 L-2 Acceptable, no findings to report. L-3 Acceptable, no findings to report. L-4 Acceptable, no findings to report. L-5 Acceptable, no findings to report. o Turbine End L-0 Minor impact damage noted at outer 18 on buckets 4, 7, 8, 9, 22, 27, 38, 49, 56, 60, 70, 71, 72, 94, 97, 104, 107, & 108. L-1 Acceptable, no findings to report. L-2 Acceptable, no findings to report. L-3 Acceptable, no findings to report. L-4 Acceptable, no findings to report. L-5 Acceptable, no findings to report. Tie Wires o Generator End L-0 Acceptable, no findings to report. o Turbine End L-0 Acceptable, no findings to report. Stellite Erosion Shields o Generator End L-0 Acceptable, no findings to report. o Turbine End L-0 Acceptable, no findings to report. Diaphragm Assemblies The diaphragm assemblies 22 through 25 stages in both the A&B low-pressure sections were removed, cleaned, visually inspected, and inspected utilizing the wet fluorescent magnetic particle method. All deficiencies noted on the diaphragm assemblies were marked and recorded. The list below will provide the identifications of each diaphragm inspected. Please refer to the technique sheets for the results of the visual inspection and magnetic particle inspection. General view of diaphragm staging area

Shells & Casings A Shell Lower o Minor multiple cracking was noted on the horizontal joint between the14 th and 16 th stage areas on both the left and right sides.

5 Shells & Casings A Shell Lower o Minor multiple cracking was noted on the horizontal joint between the14 th and 16 th stage areas on both the left and right sides. o Separation was noted, at the bolted connection of the hood extension and casing shell on turbine end left side. o Cracking was noted in the spacer blocks welds at the 18 th stage turbine end left side. o Erosion noted on the N3 packing case on the turbine end. General view of A Shell - Lower A Shell Upper o #3 door on the left side has 360º cracking on the interior weld. o #3 door on the right side has 360º cracking on the interior weld and (3) 1 cracks in the exterior weld. The door insert also has a 1 crack on the exterior. General view of A Shell - Upper

6 B Shell Lower o Minor multiple cracking noted at the horizontal joint between the14 th and 16 th stage areas on both the left and right sides. o LP Condenser piping cracked on the generator end, right side. General view of B Shell - Lower B Shell Upper o #3 door on the left side has 360º cracking on the interior weld. o #3 door on the right side has 360º cracking on the interior weld and 3 crack in the exterior weld. o #2 door on the left side has a 1 void in the exterior weld. General view of B Shell - Upper

Acceptable, no findings to report o N6 Acceptable, no findings to report o N7 Acceptable, no findings to report Packing Cone Extensions o The N4, N5, N6, & N7

7 LPA Upper Casing o 1 indication noted on the generator end, left side. LPB Upper Casing o Acceptable, no findings to report General view of LPA & LPB Upper Casings Packing Heads o N4 Acceptable, no findings to report o N5 Acceptable, no findings to report o N6 Acceptable, no findings to report o N7 Acceptable, no findings to report Packing Cone Extensions o The N4, N5, N6, & N7 packing cone extensions were inspected at the bolting end utilizing the magnetic particle method and were found to acceptable, however the bolting ends were damaged during disassembly and have extremely rough and sharp edges, a recommendation for repair was made.

8 Windage Covers A, B, & C Windage covers were inspected utilizing dye penetrant and visual inspection techniques, with no findings to report Windage covers A & B Windage covers C

Bolting & Studs The following bolting and studs were inspected visually and utilizing ultrasonic inspection techniques: A & B Coupling studs Acceptable, no findings to

findings to note Steam chest studs Acceptable, no findings to note Stop valve bonnet studs Acceptable, no findings to note Upper control valve studs Acceptable, no

9 Bolting & Studs The following bolting and studs were inspected visually and utilizing ultrasonic inspection techniques: A & B Coupling studs Acceptable, no findings to note Crossover vertical joint studs Acceptable, no findings to note HP turbine end crossover studs Acceptable, no findings to note Inner shell outside bolts Acceptable, no findings to note Steam chest studs Acceptable, no findings to note Stop valve bonnet studs Acceptable, no findings to note Upper control valve studs Acceptable, no findings to note Generator Fan Blades Fan blades (24) for the collector and turbine ends were examined utilizing dye penetrant and visual inspection techniques. Generator fan blades

12 LIQUID PENETRANT EXAMINATION REPORT Customer: Sample Turbine Outage PO: Report No: S1 Component: A LP Rotor WO: Code: N/A Material: Silver Solder Preparation: Blasted Temperature: 65 F Visible: Yes Fluorescent: N/A Black Light Int: N/A Solvent Removable: Yes Cleaner Type: SKC-S Batch No: 06K02K Water Washable: N/A Penetrant Type: SKL-SP1 Batch No: 05L01K FQS Procedure: 003 Developer Type: SKD-S2 Batch No: 04G11K Component Acc. Rej. Remarks/Indications Generator End L-0 Tie Wires X No indications noted Turbine End L-0 Tie Wires X 3 indications (Buckets 19, 33, & 47) G.E. - Selected Stellite Erosion Shields X 5 indications (B. 14, 15, 22, 34, 56) T.E. Selected Stellite Erosion Shields X 2 indications (Buckets 49 & 66) Summary of Inspection Performed: Visible red dye liquid penetrant inspection was performed on the outer tie wires and the stellite erosion shields of the L-0 buckets at both the generator and turbine ends of the A LP Rotor. Results of each inspection can be found below. View of typical tie wire Examiner: Mike Schantz Level: II Date: 12/20/2010 Examiner: Josh Porter Level: II Date: 12/20/2010

13 ULTRASONIC EXAMINATION REPORT PAGE 1 Customer: Sample Turbine Outage PO No: Report No: S1 Component: A LP Rotor Dove Tail Pins WO No: Drawing: N/A Material: C/S Prep: Blasted Test: 73 Procedure: 005 Code: N/A Instrument: Manufacturer: Model: Serial Number: Material Velocity: Panametrics Epoch III N/A Range: Gain: Reject: Scan Sensitivity: Sweep Delay: Varied 48 db N/A + 2 db N/A Transducer: Manufacturer: Frequency: Wave Mode: Size & Shape: Angle: KBA 2.25 Long. 1/4 Round Normal Couplant: Type: Ultragel Batch Number: Calibration: Cal Block No.: Part Thickness: CRT Cal Inches: Major Scrn. Div.: N/A Varied Varied Varied Cal. Times: Initial: 07:30 Final: 13:00 Scanning: 100% Weld: 100% Base Mat.: Parallel to Weld: Trans. To Weld: N/A N/A N/A N/A Summary of Inspection Performed: A UT inspection was performed on the dove tail pins on the generator and turbine ends of the double flow rotor. Three (3) rows of 114 pins were examined on both sides of the rotor; all pins were found acceptable, with no cracking noted.

14 ULTRASONIC EXAMINATION REPORT PAGE 2 Item/Weld No. A R Remarks/Indications Dove tail pins (Generator End) X Three (3) rows of 114 pins examined (Acceptable - No cracking noted) Dove tail pins (Turbine End) X Three (3) rows of 114 pins examined (Acceptable - No cracking noted) Sketch/Comments: Examiner: Gordon Austin Level: II Date: 12/22/2010 Examiner: Level: Date:

MAGNETIC PARTICLE EXAMINATION REPORT Customer: Sample Turbine Outage PO: 104568912 Report No: S1 Component: B LP Rotor WO: 100591641 Code: N/A Material: C/S Preparation: Blasted Temperature: 65 F

15 MAGNETIC PARTICLE EXAMINATION REPORT Customer: Sample Turbine Outage PO: Report No: S1 Component: B LP Rotor WO: Code: N/A Material: C/S Preparation: Blasted Temperature: 65 F Visible: N/A Fluorescent: Yes Magnetism: Long. Particles: Wet 20B Black Light Int: >1000uw/cm2 Batch No: 05A013 Equipment: Magnaflux Model No: M-500/Y-6 Serial No: FQS-001/FQS-009 Current: A/C Ampere Turns: 800 Prod Spacing: N/A Component Acc. Rej. Remarks/Indications Generator End L-0 X See below L-1 X No indications noted L-2 X No indications noted L-3 X No indications noted L-4 X No indications noted L-5 X No indications noted Turbine End L-0 X See below L-1 X No indications noted L-2 X No indications noted L-3 X No indications noted L-4 X No indications noted L-5 X No indications noted Summary of Inspection Performed: The unit 5 B LP Rotor was removed, blasted, and magnetic particle inspected for cracking. The B LP Rotor was replaced during the 2006 maintenance outage, and remains in good general condition, however, several indications were noted on the turbine and generator end L-0 buckets. Multiple coil setups and Y-6 magnetism were utilized to complete the inspection. The results of the MT inspection can be seen below. B LP Rotor Examiner: Gordon Austin Level: II Date: 12/28/2010 Examiner: Michael Schantz Level: II Date: 12/28/2010

LIQUID PENETRANT EXAMINATION REPORT Customer: Sample Turbine Outage PO: 104568912 Report No: S1 Component: B LP Rotor WO: 100591641 Code: N/A Material: Silver Solder Preparation: Blasted Temperature:

16 LIQUID PENETRANT EXAMINATION REPORT Customer: Sample Turbine Outage PO: Report No: S1 Component: B LP Rotor WO: Code: N/A Material: Silver Solder Preparation: Blasted Temperature: 65 F Visible: Yes Fluorescent: N/A Black Light Int: N/A Solvent Removable: Yes Cleaner Type: SKC-S Batch No: 06K02K Water Washable: N/A Penetrant Type: SKL-SP1 Batch No: 05L01K FQS Procedure: 003 Developer Type: SKD-S2 Batch No: 04G11K Component Acc. Rej. Remarks/Indications Generator End L-0 Tie Wires X No indications noted Turbine End L-0 Tie Wires X No indications noted G.E. - Selected Stellite Erosion Shields X 2 indications (Buckets 27 & 40) T.E. Selected Stellite Erosion Shields X No indications noted Generator End L-0 Weld Repairs Bucket 69 X No indications noted Bucket 72 X No indications noted Summary of Inspection Performed: Visible red dye liquid penetrant inspection was performed on the outer tie wires and the stellite erosion shields of the L-0 buckets at both the generator and turbine ends of the B LP Rotor, as well as two (2) weld repairs requested by plant engineering. Any findings from each inspection can be found below. View of typical tie wire Examiner: Mike Schantz Level: II Date: 12/22/2010 Examiner: Josh Porter Level: II Date: 12/22/2010

ULTRASONIC EXAMINATION REPORT PAGE 1 Customer: Sample Turbine Outage PO No: 104568912 Report No: S1 Component: B LP Rotor Dove Tail Pins WO No: 100591641 Drawing: N/A Material: C/S Prep: Blasted Temp

17 ULTRASONIC EXAMINATION REPORT PAGE 1 Customer: Sample Turbine Outage PO No: Report No: S1 Component: B LP Rotor Dove Tail Pins WO No: Drawing: N/A Material: C/S Prep: Blasted Test: 73 Procedure: 005 Code: N/A Instrument: Manufacturer: Model: Serial Number: Material Velocity: Panametrics Epoch III N/A Range: Gain: Reject: Scan Sensitivity: Sweep Delay: Varied 48 db N/A + 2 db N/A Transducer: Manufacturer: Frequency: Wave Mode: Size & Shape: Angle: KBA 2.25 Long. 1/4 Round Normal Couplant: Type: Ultragel Batch Number: Calibration: Cal Block No.: Part Thickness: CRT Cal Inches: Major Scrn. Div.: N/A Varied Varied Varied Cal. Times: Initial: 07:30 Final: 13:00 Scanning: 100% Weld: 100% Base Mat.: Parallel to Weld: Trans. To Weld: N/A N/A N/A N/A Summary of Inspection Performed: A UT inspection was performed on the dove tail pins on the generator and turbine ends of the double flow rotor. Three (3) rows of 114 pins were examined on both sides of the rotor; all pins were found acceptable, with no cracking noted.

18 ULTRASONIC EXAMINATION REPORT PAGE 2 Item/Weld No. A R Remarks/Indications Dove tail pins (Generator End) X Three (3) rows of 114 pins examined (Acceptable - No cracking noted) Dove tail pins (Turbine End) X Three (3) rows of 114 pins examined (Acceptable - No cracking noted) Sketch/Comments: Examiner: Gordon Austin Level: II Date: 12/22/2010 Examiner: Level: Date:

19 MAGNETIC PARTICLE EXAMINATION REPORT Customer: Sample Turbine Outage PO: Report No: N/A Component: GE LPA 22 Upper WO: Code: N/A Material: C/S Preparation: Blasted Temperature: 65 Visible: No Fluorescent: Yes Magnetism: Long. Particles: Wet 20B Black Light Int: >1000 um/cm 2 Batch No: 09G12K Equipment: Magnaflux Model No: P-90 Serial No: FQS-1 Current: A/C Ampere Turns: 800 Prod Spacing: N/A Position of Inspection Findings: Typical view of diaphragm blades counted left to right while Blade # 1 facing discharge side Blade # 39 Left Joint Right Joint Summary of Inspection Results: Discharge Side F.O.D. (Foreign Object Damage) noted on blades 1 39 Intake Side No findings to report Horizontal Joints 1/32 crack noted at the left horizontal joint Examiner: Gordon Austin Level: II Date: 12/26/2010 Examiner: Josh Porter Level: II Date: 12/26/2010

20 Example of typical F.O.D. noted on blades /32 crack noted in left horizontal joint

21 MAGNETIC PARTICLE EXAMINATION REPORT Customer: Sample Turbine Outage PO: Report No: N/A Component: GE LPA 22 Lower WO: Code: N/A Material: C/S Preparation: Blasted Temperature: 65 Visible: No Fluorescent: Yes Magnetism: Long. Particles: Wet 14AM Black Light Int: >1000 um/cm 2 Batch No: 09G12K Equipment: Magnaflux Model No: P-90 Serial No: FQS-1 Current: A/C Ampere Turns: 800 Prod Spacing: N/A Position of Inspection Findings: Typical view of diaphragm blades counted left to right while Blade # 1 facing discharge side Blade # 39 Left Joint Right Joint Summary of Inspection Results: Discharge Side Moderate erosion damage noted at entire side (marked with yellow hash marks) Steam seal damaged at blades edge rolled over Steam cuts/erosion noted throughout the outer ring 3/8 crack noted at wire tie post weld Intake Side Moderate erosion damage noted at entire side (marked with yellow hash marks) Horizontal Joints Steam cuts/erosion noted at the right horizontal joint corner Steam cuts/erosion noted at the left horizontal joint corner Steam cuts/erosion noted at inner ring 1/8 crack noted on left horizontal joint Examiner: Jared Spada Level: II Date: 12/26/2010 Examiner: Brandon Mayne Level: II Date: 12/26/2010

22 Example of minor erosion noted at the entire discharge side and outer ring Example of steam seal damage noted from blades 1 31

23 3/8 crack noted at wire tie post weld Example of minor erosion noted at the entire intake side

24 Minor erosion noted at left horizontal joint Minor erosion noted at right horizontal joint

25 Minor erosion noted at inner ring 1/8 crack noted at left horizontal joint

26 MAGNETIC PARTICLE EXAMINATION REPORT Customer: Sample Turbine Outage PO: Report No: N/A Component: TE LPA 22 Upper WO: Code: N/A Material: C/S Preparation: Blasted Temperature: 65 Visible: No Fluorescent: Yes Magnetism: Long. Particles: Wet 14AM Black Light Int: >1000 um/cm 2 Batch No: 09G12K Equipment: Magnaflux Model No: Y-6 Serial No: FQS-9 Current: A/C Ampere Turns: N/A Prod Spacing: 4 Position of Inspection Findings: Typical view of diaphragm blades counted left to right while Blade # 1 facing discharge side Blade # 44 Left Joint Right Joint Summary of Inspection Results: Discharge Side Minor F.O.D. noted on all blades Steam seal damage noted from blades edges rolled over Blades bent/damaged from blades 3-7, 10-16, & Intake Side No findings to report Horizontal Joints Minor gouging noted at the left horizontal joint Minor gouging noted at the right horizontal joint Examiner: Jared Spada Level: II Date: 12/26/2010 Examiner: Brandon Mayne Level: II Date: 12/26/2010

27 Example of minor F.O.D. as noted on all blades Example of steam seal damage as seen from blades 1 32

28 Example of blade damage as seen on blades 3-7, 10-16, and General view of intake side of upper stage 22 diaphragm no findings to report

29 Minor gouging on the left horizontal joint corner Minor gouging on the right horizontal joint corner

30 MAGNETIC PARTICLE EXAMINATION REPORT Customer: Sample Outage Report PO: Report No: N/A Component: GE LPA 23 Upper WO: Code: N/A Material: C/S Preparation: Blasted Temperature: 65 Visible: No Fluorescent: Yes Magnetism: Long. Particles: Wet 14AM Black Light Int: >1000 um/cm 2 Batch No: 09G12K Equipment: Magnaflux Model No: Y-6 Serial No: FQS-9 Current: A/C Ampere Turns: N/A Prod Spacing: 4 Position of Inspection Findings: Typical view of diaphragm blades counted left to right while Blade # 1 facing discharge side Blade # 39 Left Joint Right Joint Summary of Inspection Results: Discharge Side Minor F.O.D. noted on all blades Steam seal damage noted from blades edges rolled over Intake Side No findings to report Horizontal Joints Minor gouging noted at the left horizontal joint Minor gouging noted at the right horizontal joint Examiner: Jared Spada Level: II Date: 12/26/2010 Examiner: Brandon Mayne Level: II Date: 12/26/2010

31 Example of minor F.O.D. as noted on all blades Example of steam seal damage as seen from blades 1 27

32 General view of intake side of upper stage 23 diaphragm no findings to report Minor gouging on the left horizontal joint corner

33 Minor gouging on the right horizontal joint corner

34 MAGNETIC PARTICLE EXAMINATION REPORT Customer: Sample Turbine Outage PO: Report No: N/A Component: A Shell lower WO: Code: N/A Material: C/S Preparation: Blasted Temperature: 60º Visible: No Fluorescent: Yes Magnetism: Longitudinal Particles: Wet Suspension: Oil Batch No: 09F06K Equipment: Magnaflux Model No: Y-6 Serial No: FQS - 13 Current: A.C. Ampere Turns: N/A Prod Spacing: 4 Component Acc. Rej. Remarks/Indications A Shell lower X See below Comments: Minor multiple cracking was noted on the horizontal joint between the14 th and 16 th stage areas on both the left and right sides. Separation was noted, at the bolted connection of the hood extension and casing shell on turbine end left side. Cracking was noted in the spacer blocks welds at the 18 th stage turbine end left side. Erosion noted on the N3 packing case on the turbine end. Note: All noted cracks were excavated and verified for removal. All weld repairs were verified via magnetic particle inspection for quality, no further action is required. Examiner: Mike Schantz Level: II Date: 12/24/10 Examiner: Gordon Austin Level: II Date: 12/24/10

35 MAGNETIC PARTICLE EXAMINATION REPORT Customer: Sample Turbine Outage PO: Report No: N/A Component: A Shell upper WO: Code: N/A Material: C/S Preparation: Blasted Temperature: 60º Visible: No Fluorescent: Yes Magnetism: Longitudinal Particles: Wet Suspension: Oil Batch No: 09F06K Equipment: Magnaflux Model No: Y-6 Serial No: FQS - 13 Current: A.C. Ampere Turns: N/A Prod Spacing: 4 Component Acc. Rej. Remarks/Indications A Shell upper X See below Comments: #3 door on the left side has 360º cracking on the interior weld. #3 door on the right side has 360º cracking on the interior weld and (3) 1 cracks in the exterior weld. The door insert also has a 1 crack on the exterior. Note: All noted cracks were excavated and verified for removal. All weld repairs were verified via magnetic particle inspection for quality, no further action is required. Examiner: Mike Schantz Level: II Date: 12/24/10 Examiner: Gordon Austin Level: II Date: 12/24/10

36 MAGNETIC PARTICLE EXAMINATION REPORT Customer: Sample Turbine Outage PO: Report No: N/A Component: B Shell lower WO: Code: N/A Material: C/S Preparation: Blasted Temperature: 60º Visible: No Fluorescent: Yes Magnetism: Longitudinal Particles: Wet Suspension: Oil Batch No: 09F06K Equipment: Magnaflux Model No: Y-6 Serial No: FQS - 13 Current: A.C. Ampere Turns: N/A Prod Spacing: 4 Component Acc. Rej. Remarks/Indications B Shell lower X See below Comments: Minor multiple cracking noted at the horizontal joint between the14 th and 16 th stage areas on both the left and right sides. LP Condenser piping cracked on the generator end, right side. Note: All noted cracks were excavated and verified for removal. All weld repairs were verified via magnetic particle inspection for quality, no further action is required. Examiner: Mike Schantz Level: II Date: 12/24/10 Examiner: Gordon Austin Level: II Date: 12/24/10

37 MAGNETIC PARTICLE EXAMINATION REPORT Customer: Sample Turbine Outage PO: Report No: N/A Component: B Shell upper WO: Code: N/A Material: C/S Preparation: Blasted Temperature: 60º Visible: No Fluorescent: Yes Magnetism: Longitudinal Particles: Wet Suspension: Oil Batch No: 09F06K Equipment: Magnaflux Model No: Y-6 Serial No: FQS - 13 Current: A.C. Ampere Turns: N/A Prod Spacing: 4 Component Acc. Rej. Remarks/Indications B Shell upper X See below Comments: #3 door on the left side has 360º cracking on the interior weld. #3 door on the right side has 360º cracking on the interior weld and 3 crack in the exterior weld. #2 door on the left side has a 1 void in the exterior weld. Note: All noted cracks were excavated and verified for removal. All weld repairs were verified via magnetic particle inspection for quality, no further action is required. Examiner: Mike Schantz Level: II Date: 12/24/10 Examiner: Gordon Austin Level: II Date: 12/24/10

38 MAGNETIC PARTICLE EXAMINATION REPORT Customer: Sample Turbine Outage PO: Report No: N/A Component: LPA & LPB upper casing WO: Code: N/A Material: C/S Preparation: Blasted Temperature: 60º Visible: No Fluorescent: Yes Magnetism: Longitudinal Particles: Wet Suspension: Oil Batch No: 09F06K Equipment: Magnaflux Model No: Y-6 Serial No: FQS - 13 Current: A.C. Ampere Turns: N/A Prod Spacing: 4 Component Acc. Rej. Remarks/Indications LPA upper casing X 1 ind. On left side GE LPB upper casing X No indications noted Comments: Note: 1 indication on LPA excavated to 1/16 depth, and verified for indication removal. No weld repair is required and no further action is needed. Examiner: Mike Schantz Level: II Date: 12/24/10 Examiner: Gordon Austin Level: II Date: 12/24/10

39 MAGNETIC PARTICLE EXAMINATION REPORT Customer: Sample Turbine Outage PO: Report No: N/A Component: Upper Packing Heads WO: Code: N/A Material: C/S Preparation: Blasted Temperature: 60º Visible: No Fluorescent: Yes Magnetism: Longitudinal Particles: Wet Suspension: Oil Batch No: 09F06K Equipment: Magnaflux Model No: Y-6 Serial No: FQS - 13 Current: A.C. Ampere Turns: N/A Prod Spacing: 4 Component Acc. Rej. Remarks/Indications N4 Packing casing - upper X No indications noted N5 Packing casing - upper X No indications noted N6 Packing casing - upper X No indications noted N7 Packing casing - upper X No indications noted Comments: Examiner: Jared Spada Level: II Date: Examiner: Level: Date:

MAGNETIC PARTICLE EXAMINATION REPORT Customer: Sample Turbine Outage PO: 104568912 Report No: N/A Component: Packing Cone Extensions WO: 100591641 Code: N/A Material: C/S Preparation: Blasted

40 MAGNETIC PARTICLE EXAMINATION REPORT Customer: Sample Turbine Outage PO: Report No: N/A Component: Packing Cone Extensions WO: Code: N/A Material: C/S Preparation: Blasted Temperature: 60º Visible: No Fluorescent: Yes Magnetism: Longitudinal Particles: Wet Suspension: Oil Batch No: 09F06K Equipment: Magnaflux Model No: Y-6 Serial No: FQS - 13 Current: A.C. Ampere Turns: N/A Prod Spacing: 4 Component Acc. Rej. Remarks/Indications Packing Cone Extensions X See below Comments: Bolting ends were damaged during disassembly and have extremely rough and sharp edges. Note: The identified sharp edges resulting from the disassembly of the packing cone extensions have been repaired and cleared, no further action is required. Examiner: Mike Schantz Level: II Date: 12/24/09 Examiner: Gordon Austin Level: II Date: 12/24/09

LIQUID PENETRANT EXAMINATION REPORT Customer: Sample Turbine Outage PO: 104568912 Report No: S1 Component: Windage Covers WO: 100591641 Code: N/A Material: Aluminum Preparation: As found Temperature:

Developer Type: SKD-S2 Batch No: 04G11K Component Acc. Rej.

41 LIQUID PENETRANT EXAMINATION REPORT Customer: Sample Turbine Outage PO: Report No: S1 Component: Windage Covers WO: Code: N/A Material: Aluminum Preparation: As found Temperature: 72 F Visible: Yes Fluorescent: N/A Black Light Int: N/A Solvent Removable: Yes Cleaner Type: SKC-S Batch No: 06K02K Water Washable: N/A Penetrant Type: SKL-SP1 Batch No: 05L01K FQS Procedure: 003 Developer Type: SKD-S2 Batch No: 04G11K Component Acc. Rej. Remarks/Indications A Windage Covers (1-4) X No indications noted B Windage Covers (1-4) X No indications noted C Windage Covers (1-4) X No indications noted Summary of Inspection Performed: Visible red dye liquid penetrant inspection was performed on the A, B, & C Windage Covers. All covers were found acceptable, with no indications noted. A & B Windage Covers C Windage Covers Examiner: Mike Schantz Level: II Date: 12/22/2010 Examiner: Josh Porter Level: II Date: 12/22/2010

ULTRASONIC EXAMINATION REPORT PAGE 1 Customer: Sample Turbine Outage PO No: 104568912 Report No: N/A Component: Bolting & Studs WO No: 100591641 Drawing: N/A Material: C/S Prep: Blasted Temp @ Test:

2332 Range: Gain: Reject: Scan Sensitivity: Sweep Delay: Varied 54 db N/A + 2 db N/A Transducer: Manufacturer: Frequency: Wave Mode: Size & Shape: Angle: KBA 2.25 Long.

42 ULTRASONIC EXAMINATION REPORT PAGE 1 Customer: Sample Turbine Outage PO No: Report No: N/A Component: Bolting & Studs WO No: Drawing: N/A Material: C/S Prep: Blasted Test: 65 Procedure: 005 Code: N/A Instrument: Manufacturer: Model: Serial Number: Material Velocity: Panametrics Epoch III N/A Range: Gain: Reject: Scan Sensitivity: Sweep Delay: Varied 54 db N/A + 2 db N/A Transducer: Manufacturer: Frequency: Wave Mode: Size & Shape: Angle: KBA 2.25 Long. 1/2 Round Normal Couplant: Type: Ultragel Batch Number: Calibration: Cal Block No.: Part Thickness: CRT Cal Inches: Major Scrn. Div.: N/A Varied Varied Varied Cal. Times: Initial: 07:30 Final: 18:00 Scanning: 100% Weld: 100% Base Mat.: Parallel to Weld: Trans. To Weld: N/A N/A N/A N/A Summary of Inspection Performed: A UT inspection was performed on selected bolting and studs from the turbine assembly, a complete list of studs/bolts inspected, as well as the results of the inspection can be seen below. General view of bolting & stud inspection area

43 ULTRASONIC EXAMINATION REPORT PAGE 2 Item/Weld No. A R Remarks/Indications A Coupling Studs (12) X No loss of backwall reflection B Coupling Studs (12) X No loss of backwall reflection Crossover Vertical Joint Studs (39) X No loss of backwall reflection HP Turbine End Crossover Vertical Joint Studs (48) X No loss of backwall reflection Inner Shell Outside Bolts (Left Side) LP (A) Left Side (8) X No loss of backwall reflection LP (B) Left Side (8) X No loss of backwall reflection Inner Shell Outside Bolts (Right Side) LP (A) Right Side (8) X No loss of backwall reflection LP (B) Right Side (8) X No loss of backwall reflection Upper Steam Chest Studs (41) X No loss of backwall reflection Lower Steam Chest Studs (24) X No loss of backwall reflection #1 Stop Valve Bonnet Studs (15) X No loss of backwall reflection #2 Stop Valve Bonnet Studs (15) X No loss of backwall reflection #3 Stop Valve Bonnet Studs (14*) X No loss of backwall reflection 1 stud broken during disassembly No UT performed #4 Stop Valve Bonnet Studs (15) X No loss of backwall reflection #1 Upper Control Valve Studs (10) X No loss of backwall reflection #2 Upper Control Valve Studs (9*) X No loss of backwall reflection 1 stud broken during disassembly No UT performed #3 Upper Control Valve Studs (10) X No loss of backwall reflection #4 Upper Control Valve Studs (9*) 1 stud broken during disassembly No UT performed Sketch/Comments: General view of bolting & stud inspection area Examiner: Brian Spada Level: II Date: 12/28/2010 Examiner: Level: Date:

44 LIQUID PENETRANT EXAMINATION REPORT Customer: Sample Turbine Outage PO: Report No: N/A Component: Fan Blades WO: Code: N/A Material: Aluminum Preparation: Brushed Temperature: 68 F Visible: Yes Fluorescent: N/A Black Light Int: N/A Solvent Removable: Yes Cleaner Type: SKC-S Batch No: 06K02K Water Washable: N/A Penetrant Type: SKL-SP1 Batch No: 05L01K FQS Procedure: 003 Developer Type: SKD-S2 Batch No: 04G11K Component Acc. Rej. Remarks/Indications Turbine End Generator Fan Blades (24) X No indications noted Collector End Generator Fan Blades (24) X No indications noted Summary of Inspection Performed: Visible red dye liquid penetrant inspection was performed on the turbine end and collector end generation fan blades (48 total). All fan blades were found acceptable, with no indications noted. Generator Fan Blades Examiner: Mike Schantz Level: II Date: 12/21/2010 Examiner: Josh Porter Level: II Date: 12/21/2010

Unit s 1 & New Berlin Road No.109 Jacksonville, Florida Global Power Generation Services, All Rights Reserved.

Unit s 1 & New Berlin Road No.109 Jacksonville, Florida Global Power Generation Services, All Rights Reserved. Unit s 1 & 2 Turbine Generator Inspections Summary Unit s 1 & 2 are of the same design; Single Flow Condensing Steam Turbine with Hydrogen Cooled Generators, both sets are installed on an outdoor pedestal