ML090850344
| ML090850344 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 03/13/2009 |
| From: | Jordan A Dominion Nuclear Connecticut |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML090850344 | List: |
| References | |
| 09-125 | |
| Download: ML090850344 (33) | |
Text
Dominion Nuclear Connecticut, Inc.
Ft iin Millstone Power Station
__.W Rope Ferry Road Waterford, CT 06385 U.S. Nuclear Regulatory Commission MAR 1 3 2009 Serial No.09-125 Attention: Document Control Desk NSS&L/MLC RO One White Flint North Docket No.
50-423 11555 Rockville Pike License No.
NPF-49 Rockville, MD 20852-2738 DOMINION NUCLEAR CONNECTICUT. INC.
MILLSTONE POWER STATION UNIT 3 END OF CYCLE 12 STEAM GENERATOR TUBE INSPECTION REPORT In accordance with the Millstone Power Station Unit 3 Technical Specification (TS) Section 6.9.1.7, Dominion Nuclear Connecticut, Inc. hereby submits the End of Cycle 12 Steam Generator Tube Inspection Report. The report is submitted within 180 days after initial entry into MODE 4 following completion of an inspection performed in accordance with TS 6.8.4.g, Steam Generator (SG) Program.
The report includes the following:
- a. The scope of inspections performed on each SG.
- b. Active degradation mechanisms found.
- c. Nondestructive examination techniques utilized for each degradation mechanism.
- d. Location, orientation (if linear), and measured sizes (if available) of service induced indications.
- e. Number of tubes plugged during the inspection outage for each active degradation mechanism.
- f.
Total number and percentage of tubes plugged to date.
- g. The results of condition monitoring, including the results of tube pulls and in-situ testing.
- h. The effective plugging percentage for all plugging in each SG.
- i.
The number of indications and location, size, orientation, whether initiated on primary or secondary side for each service induced flaw within the thickness of the tubesheet, and the total of the circumferential components and any circumferential overlap below 17 inches from the top of the tubesheet as determined in accordance with TS 6.8.4.g.c.
- j.
The primary-to-secondary LEAKAGE rate observed in each SG (if it is not practical to assign leakage to an individual SG, the entire primary-to-secondary LEAKAGE should be conservatively assumed to be from one SG) during the cycle preceding the inspection which is the subject of the report.
- k. The calculated accident leakage rate from the portion of the tube below 17 inches from the top of the tubesheet for the most limiting accident in the most limiting SG.
/1k9 4oL-,
Serial No.09-125 Docket No. 50-423 Page 2 of 2 If you have any questions or require additional information, please contact Mr. William D. Bartron at (860) 444-4301.
Sincerely, Site ident - Millstone
Enclosures:
(1)
Commitments made in this letter: None.
cc:
U.S. Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia, PA 19406-1415 Ms. C. J. Sanders NRC Project Manager U.S. Nuclear Regulatory Commission One White Flint North, Mail Stop 08-B3 11555 Rockville Pike Rockville, MD 20852-2738 NRC Senior Resident Inspector Millstone Power Station
Serial No.09-125 Docket No. 50-423 ENCLOSURE Millstone Power Station Unit 3 End of Cycle 12 Steam Generator Tube Inspection Report MILLSTONE POWER STATION UNIT 3 DOMINION NUCLEAR CONNECTICUT, INC. (DNC)
Serial No.09-125 Docket No. 50-423 Enclosure Page 1 of 27 End of Cycle 12 Steam Generator Tube Inspection Report Millstone Power Station Unit 3 (MPS3) is a four loop Westinghouse Pressurized Water Reactor (PWR) with Westinghouse Model F Steam Generators (SG). Each SG contains 5626 U-bend thermally treated Inconel 600 tubes. The tubing is nominally 0.688 inches outside diameter with a 0.040-inch nominal wall thickness. During SG fabrication, the tubes were hydraulically expanded over the full depth of the 21.23-inch thick tubesheet. The tubesheet was drilled on a square pitch with 0.98-inch spacing. There are 59 rows and 122 columns in each SG. The radius of the row 1 U-bends is 2.20 inches. U-bends in rows 1 through 10 were stress relieved after being formed.
Secondary side tube support structures include a flow distribution baffle, seven plate supports with broached holes on the vertical section of the tubes, and six anti-vibration bars (AVBs) on the U-bend section of the tubes.
The SGs have accrued 16.6 effective full power years (EFPY) of operation as of the end of cycle (EOC) 12 (October 2008). Up to this time, the 1200 MW Unit 3 operated with a hot leg temperature of 617 degrees Fahrenheit. A 7% power uprate has been implemented for Cycle 13.
The MPS3 SG eddy current testing (ECT) conducted at the EOC 12 was completed on October 31, 2008. The examinations, personnel, and equipment, conformed to the requirements of NEI 97-06, Rev. 2, Steam Generator Program Guidelines; Electric Power Research Institute (EPRI) PWR Steam Generator Examination Guidelines: Rev. 7; and MPS3 Technical Specifications (TSs). One hundred percent of the operational tubes within SG A and SG C, a total of 11,205 tubes (approximately 50 percent of the total population of tubes), were inspected full length. The majority of the tubing length was examined with bobbin probes. The U-bends of row 1 and row 2 tubes were examined by a motorized rotating pancake coil (MRPC) technique in addition to the bobbin probe examination of the straight legs of the tubes. An augmented sample, 35,463 tube locations, was inspected with diagnostic rotating coils. The rotating probe inspections were performed in areas of special interest (SI) including hot leg expansion transitions, tube overexpansion locations within the hot leg tubesheet, low row U-bends, tube ends, and dents, as well as locations where the bobbin probe response was ambiguous. The sample included bounding examinations for possible loose part (PLP) indications and new volumetric (fabrication, foreign object wear or sludge lance sled damage) detections. Outside the tubesheet, the only indications of degradation recorded were attributed to mechanically induced wear or fabrication related damage. One tube was identified with AVB wear, sized at 38 percent throughwall, and was discretionarily removed from service. Two tubes were identified with foreign object wear, sized at 41 and 42 percent throughwall, exceeding the TS plugging limit. The signal responses for these indications had not changed since the previous examination during MPS3's Refueling Outage 10 (3R10), but the application of a new EPRI sizing technique for foreign object wear increased the estimated degradation depth. No new hard metallic foreign objects (e.g., weld wire, flexitallic gasket, or weld slag) were found by ECT or secondary side inspection (SSI) during 3R12. Tube end linear indications were detected in the hot legs of all four SGs (A, B, C and D) and in the cold leg of SG D. Examination expansions were performed as required in the EPRI PWR Steam Generator Examination Guidelines: Rev. 7. A total of 99 axial and 53 circumferential indications were reported in the tube end examination. In accordance with TS Amendment No. 245, Interim Alternate Repair Criteria (IARC), 23 tubes were removed from service for tube end degradation.
Serial No.09-125 Docket No. 50-423 Enclosure Page 2 of 27 In accordance with MPS3 TSs, a SG tube inspection report is required. TS Section 6.9.1.7 states:
A report shall be submitted within 180 days after the initial entry into MODE 4 following completion of an inspection performed in accordance with TS 6.8.4.g, Steam Generator (SG) Program. The report shall include:
- a. The scope of inspections performed on each SG, See Attachment 1, "Acronyms," for explanation of acronyms. See Attachment 2, "Millstone Power Station Unit 3 Steam Generator Arrangement," for illustration of steam generator component locations.
For both SG A and SG C, a 100% full length bobbin coil examination was scheduled to be performed on all tubes from the tube end of the hot leg (TEH) to the tube end of the cold leg (TEC). This was accomplished for the majority of the tubes. The remaining tubes were examined from 08H to TEC, 08C to TEC, or 08H to TEH to complete the full length bobbin inspection.
For both SG A and SG C, the diagnostic rotating coil examinations included a 50%
sample of hot leg tubesheet expansion transitions (TSH +3"/-3") and an approximately 700 tube sample in the cold leg tubesheet periphery expansion transitions (TSC +3"/-3").
The detection of tube end indications led to scope expansions that resulted in the examination of 100% of the hot leg tube ends in all four SGs (A, B, C, and D) and 20% of the cold leg tube ends in SG A, B and C and 100% of the cold leg tube ends in SG D.
In total, 35,463 diagnostic examinations were performed. The locations included 3R10 historical locations which consisted of previously reported dings (DNG), dents (DNT),
non-quantifiable historical indications (NQH), overexpansions above the tubesheet (OVR), overexpansions within the tubesheet (OXP), PLP, percent through wall indications (%TW), volumetric indications (VOL) and wear indications (WAR). These locations also included 3R12 bobbin coil SI locations such as non-quantifiable indications (NQI), PLP, and various hot leg and cold leg PLP bounding locations. The inspection summary is documented in Table 1.
Serial No.09-125 Docket No. 50-423 Enclosure Page 3 of 27 Table 1 MPS3 3R12 ECT Summary SG A SG B SG C SG D Total Number of Tubes Inservice 5,590 5,622 5,615 5,544 22,371 Number of Tubes Inspected F/L w/Bobbin Probe 5,104 N/A 5,130 N/A 10,234 Number of Tubes Inspected w/Bobbin Probe Hot Leg Straights 486 N/A 485 N/A 971*
and Cold Leg Candy Canes Previously Plugged Tubes 36 4
11 82 133 No. of Tubes Incomplete w/Bobbin Probe due to Obstruction 0
N/A 0
N/A 0
Number of Examinations w/MRPC (Total):
8,889 6,749 8,737 11,088 35,463 sHot Leg Tubesheet, Full Depth (TTS+3 to TE) 2,241 N/A 2,241 N/A 4,482
- Hot Leg Transitions (+3 / -3) - Original Scope 784 N/A 643 § N/A 1,427
- Hot Leg Transitions - Scope Expansion 0
N/A 0
N/A 0
9Hot Leg TE to TE + 4 - Scope Expansion 3,349 5,622 3,374 5,544 17,889
'Cold Leg Transitions (+3 / -3) - Original Scope 701 N/A 703 N/A 1404
'Cold Leg Transitions - Scope Expansion 0
N/A 0
N/A 0
- Row 1 and 2 U-Bends - Original Scope 243 N/A 241 N/A 484
- Row 1 and 2 U-Bends - Additional Scope 0
N/A 0
N/A 0
91U-Bends - Additional Scope 0
N/A 0
N/A 0
eHot Leg Misc. Special Interest - Diagnostic Exams and 358 N/A 312 N/A 670 from Previous History sCold Leg Misc. Special Interest - Diagnostic Exams and 22 N/A 13 N/A 35 from Previous History
'U-bend. Special Interest - Diagnostic Exams and from 1
N/A 2
N/A 3
Previous History oPLP / SVI Bounding Special Interest 64 N/A 81 N/A 145 Total Number of Hot Leg OXP Locations Examined 1431 145 312 43 1931 Total Number of Cold Leg OXP Locations Examined 182 17 68 61 328 Tubes w/ Max AVB Wear > 40 %
0 N/A 0
N/A 0
Tubes w/ Max AVB Wear > 37 %
1 N/A 0
N/A 1
Tubes w/ Max AVB Wear >20% but <37%
58 N/A 10 N/A 68 Tubes w/ Max AVB Wear <20%
78 N/A 18 N/A 96 Tubes w/ Max Non-AVB Volum. Deg. > 40 %
1 N/A 1
N/A 2
Tubes w/ Max Non-AVB Volum. Deg. >20% but <40%
10 N/A 10 N/A 20 Tubes w/ Max Non-AVB Volum. Deg. <20%
3 N/A 12 N/A 15 Total Tubes Plugged as a Result of this Inspection:
2 12 11 1
26
'Due to AVB Wear >37% (discretionary) 1 0
0 0
1
'Due to Non-AVB Volumetric Degradation > 40 %
1 0
1 0
2
'Due to an Obstruction 0
0 0
0 0
'Due to TE Cracking Indication(s) Exceeding IARC 0
12 6
1 19
'Due to Circ & Axial TE Cracking Indications in Same 0
0 4
0 4
Tube (discretionary)
- These values include 243 tubes in SG A and 241 tubes in SG C for which the U-bends were examined with MRPC only Values provided in the total and the sub-bullets correspond to the number of examinations performed.
§ This value includes examinations of seven previously reported indications of volumetric degradation (SVI).
Serial No.09-125 Docket No. 50-423 Enclosure Page 4 of 27
- b. Active degradation mechanisms found, The existing degradation mechanisms found during 3R12 included AVB wear, volumetric degradation from fabrication, foreign object wear and sludge lance sled damage, and indications of tube end cracking.
- c. Nondestructive examination techniques utilized for each degradation mechanism, Table 2 identifies the examination techniques utilized for each identified degradation mechanism.
Serial No.09-125 Docket No. 50-423 Enclosure Page 5 of 27 Table 2 - Degradation Mechanisms and Inspection Techniques*
Degradation Location Detection Best Estimate Sizing Technique, Tech. Sizing Tech. Sizing Technique, R12 Inspection Scope Mechanism Technique, ETSS Technique, ETSS Number Correlation (r 2 ) Regression Coef. Personnel Sizing Number Personnel POD (slope, intercept) Std Err Regression
(%TW)
Wear Tube at AVB, Tube at Bobbin, 96004.3 1.0 (>10%TW),
Bobbin, 96004.3 0.98 0.96, 2.92 3.52, 7.04 100%, full length bobbin FDB 0.98 (>40%TW) in SG A & C Bobbin, Site Spec Combined: 0.97 Site Spec NU-MP3-Combined Upper NU-MP3-AVB-1 AVB-1 95/95: 5%TW Confirmatory/Special 1.0 (>21%TW), NA Interest +point/ 0.115"
+Point, 96910.1
+Point, 96910.1 0.92 1.01, 4.3 6.68, NA exams in SG A & C 1.0 (>10%TW), NA 0.115", 96911.1 0.115", 96911.1 0.92 1.22, -0.07 7.49, 3.22 1.0
(>10%TW), NA 6.28, NA
-3,000 +Point/
0.115"
+Point, 21998.1
+Point, 21998.1 0.88 1.02, 5.81 exams each in SG A & C Pitting Tube at Secondary Bobbin, 96005.2 0.98 (>20%TW),
Bobbin, 96005.2 0.17 0.27, 28.42 13.36, 6.58 100%, full length bobbin Side Sludge /
0.88 (>40%TW) in SG B & D Deposits
+Point, 21998.1 1.0
(>10%TW), NA
+Point, 21998.1 0.88 1.02, 5.81 6.28, NA
-3,000 +point/ 0.115" exams in each in SG A & C Thinning Tube at support Bobbin, 96001.1 1.00 (>20%TW),
Bobbin, 96001.1 0.74 0.97, -6.61 13.20, 3.82 100%, full length bobbin structures 0.98 (>40%TW) in SG A & C Impingement Tube Bobbin NA NA NA NA NA 100%, full length bobbin in SG A & C IGA/SCC (OD)
Tube Freespan, Non Bobbin, 96008.1 1.0 (>15%TW)
Bobbin, 96008.1 0.55 0.74, 9.56 20.62, NA 100%, full length bobbin Volumetric/Axial Dented Support 0.89 (>40%TW) in SG A & C Intersections, Sludge Bobbin, 96007.1 0.95 (>40%TW),
Bobbin, 96007.1 0.37 0.63, 18.88 18.59, NA Regions 0.89 (>40%TW)
Dented TSP
+Point, 22401.1 1.0
(>53%TW)
+Point, 22401.1 0.02 0.13, 74.55 14.44
<5.00v Dings (Ax Length) 0.38 0.74, 0.27 0.27 Bobbin, 24013.1 Wear Circ. Groove
+Point, 27901.1 1.0 (>31%TW)
+Point, 27901.0 0.98 1.05, -1.97 2.30 Additional diagnostic wear (foreign object Axial Groove
+Point, 27902.1 1.0 (>8%TW)
+Point, 27902.0 1.0 0.98, 1.89 2.32 techniques for loose part not present)
Tapered football
+Point, 27903.1 1.0 (>21%TW)
+Point, 27903.0 1.0 0.97, 2.80 2.11 sizing (freespan)
Tapered round hole
+Point, 27904.1 1.0 (>32%TW)
+Point, 27904.0 0.98 1.00, 0.48 1.99 Flat wear
+Point, 27905.1 1.0 (>7%TW)
+Point, 27905.0 1.0 1.09, -4.31 2.05 Tapered wear
+Point, 27906.1 1.0 (>11%TW)
+Point, 27906.0 1.0 0.96, 1.67 1.43 45 deg. Tapered wear +Point, 27907.1 1.0
(>13%TW)
+Point, 27907.0 0.98 1.05, -2.10 2.59 SCC (OD)
Tube Freespan,
+Point, 21409.1 1.0(>35%TW), 0.98
+Point, 21409.1 0.15 0.33, 25.61 17.88, NA
-3,000 +point/ 0.115" Circumferential Dented and Non (axial), 0.95 (circ)
(% degraded area) exams in each in SG A & C Dented Support
+Point, 21410.1 1.0 (>42%TW)
+Point, 21410.1 Roll transition Intersections, Sludge 0.7
(<41%TW)
(Depth) 0.02 0.13, 60.1 24.5, NA All dents > 3volts Regions, Expansion (PDA) 0.22 1.02, 21.84 23.58, NA Confirmatory/Special Transition
+point, 22842.1 1.0(>10°or2_44%TW) +point, 22842.1 0.56 0.52, 0.03 0.26 Interest +point / 0.115"
+Point, 22842.3 0.96 (>140°), 0.95
+Point, 22842.3 0.15 0.21, 1.19 0.27, NA exams in SG A & C PWSCC (ID)
Tube Expansion
+Point, 20510.1 1.00(>30%TW)
+Point, 20510.1 0.77 0.82, 2.83 6.98
-3,000 +point / 0.115" Circumferential Transition, Within
(% degraded area) exams in each SG A & C Tubesheet, Dents, 204 +point @ tubesheet Near Seal Weld
+Point, 96701.1 0.67 (21-41%TW) or +Point, 96701.1 0.85 0.84, 10.32 9.56 bulge (A-179, C-25)
("tube end 0.94 (>210 %TW),
The plugs in SG A & C will cracking"), Plugs 1.0 (>42%TW) be visually examined
Serial No.09-125 Docket No. 50-423 Enclosure Page 6 of 27 Table 2 (continued) - Degradation Mechanisms and Inspection Techniques*
Degradation Location Detection Best Estimate Sizing Tech. Sizing Tech. Sizing Technique, R12 Inspection Scope Mechanism Technique, ETSS Technique, Technique, ETSS Correlation (r2)
Regression Coef. Personnel Sizing Number Personnel POD Number (slope, intercept) Std Err Regression
(%TW)
PWSCC (ID)
Tube Expansion
+Point, 20511.1 1.0
(>40%TW)
+Point, 20511.1
-3,000 +point / 0.115" Axial Transition, Within (Depth) 0.41 0.68, 14.45 12.44, NA exams in each SG A & C Tubesheet, Dents, (Ax Length) 0.76 1.1, -0.01 0.13 204 +point @ tubesheet Near Seal Weld Bobbin, 96012.1 bulge (A-179, C-25)
("tube end The plugs in SG A & C cracking"), Plugs
+Point, 96703.1 1.0
(>17%TW)
+Point, 96703.1 0.83(%deg.area) 0.90, 0.77 10.06, NA will be visually examined
<2.00v Dents @ TSP 0.83(axial length 1.0, 0.13 0.28 Ghent 3/4, 20507.1 1.0 (_>36%TW)
Ghent 3/4, 20507.1 0.62(max depth) 0.9, 1.91 13.43 0.62(length) 0.8, 0.34-0.27 0.76(PDA) 0.99,4.64 4.64 Ghent 3/4, 20508.1 1.0
(_>40%TW)
Ghent 3/4, 20508.1 0.64(length) 2.08, -0.29 0.15 0.05(max depth) 0.19, 48.46 14.74 Det, ext sizing, circ.
UT, 98302.1 1.0 (length_>0.327)
UT, 98302.1 0.98 1.0031, -0.0055 0.05 Det, ext sizing, axial UT, 98302.3 1.0 (length_0.362)
UT, 98302.3 1.00 0.9975, -0.0257 0.04 Depth sizing, circ UT, 98303.1 1.0 (length_>0.026)
UT, 98303.1 0.45 0.6667, 0.01212 0.0038 Depth sizing, axial UT, 98303.3 1.0 (length_>0.011)
UT, 98303.3 0.85 0.9290, 0.00251 0.0044 PT PWSCC (ID)
Low Row U-bends
+Point, 96511.3 1.0 (>26%TW), 0.95
+Point, 96511.3 0.22 0.34, 31.96 17.61, NA 50% exams in each SG A Axial and/or (Max Depth %TW)
& C Circumferential
+Point, 96511.2 1.0 (>26%TW), 0.95
+Point, 96511.2 0.44 0.56, 19.06 14.97, NA (Max Depth %TW)
Corrosion Support Structures Bobbin, no specific NA NA NA NA NA 100%, full length bobbin Induced Tube ETSS in SG A & C Denting I_
r I
Plug Installation Plug/Tube Interface Engineering review plug installation parameters and plug video after installation; Engineering visual examination (video) of SG A & C Deficiencies, Plug existing plug(s)
IGA/SCC Cracking Secondary side Visual inspection of upper internals structures and components in accordance with the EPRI Steam Generator Integrity Upper internals inspection structures and Assessment Guidelines, Chapter 10.
of SG B components Flow Assisted Feedring, J-Tube /
Visual and UT inspection of upper internals structures and components in accordance with the EPRI Steam Generator Integrity Upper internals inspection Corrosion Feedring Interface, Assessment Guidelines, Chapter 10.
of SG B Moisture Separators Foreign Objects, Tubes, TTS, FDB, Visual inspection of structures and components, retrieval of foreign objects.
SSI and FOSAR, SG A & C Sludge, Scale Blowdown pipes PWSCC Primary side 1600 Visual inspection of components and structures within and adjacent to the SG bowls in accordance with ER-AA-MAT-10, SG A & C structures and Dominion Reactor Coolant System Materials Degradation Management Program.
components 7
- The inspection is directed toward those damage mechanisms with realistic near-term potential for development..
Serial No.09-125 Docket No. 50-423 Enclosure Page 7 of 27
- d. Location, orientation (if linear), and measured sizes (if applicable) of service induced indications, The following tables (Tables 3 through 13) identify the AVB wear, volumetric and tube end cracking indications reported during 3R12.
Table 3 Steam Generator A - Repeat AVB Wear Indications SG Old Outage New Outage Row Col Elev Old Offset NewOffset Old %TW New%TW Change Growth Rate A
3R10 3R12 22 78 AV5 0
0 16 16 0
0
%TW/EFPY A
3R10 3R12 22 78 AV6 0
-0.02 14 11
-3
-1.067236 %TW/EFPY A
3R10 3R12 26 44 AV2 0.09 0.15 13 17 4
1.422981
%TW/EFPY A
3R10 3R12 26 44 AV5 0.05 0.02 15 21 6
2.134472 %TW/EFPY A
3R10 3R12 26 114 AV5 0
0 11 10
-1
-0.355745 %TW/EFPY A
3R10 3R12 26 115 AV1 0
0 26 27 1
0.355745 %TW/EFPY A
3R10 3R12 27 115 AVl
-0.32
-0.34 15 18 3
1.067236
%TW/EFPY A
3R10 3R12 28 36 AV5
-0.18
-0.07 12 10
-2
-0.711491 %TW/EFPY A
3R10 3R12 28 113 AV5 0.07 0.1 11 12 1
0.355745 %TW/EFPY A
3R10 3R12 28 115 AVl
-0.18 0
29 32 3
1.067236
%TW/EFPY A
3R10 3R12 29 40 AV2 0
0 15 14
-1
-0.355745 %TW/EFPY A
3R10 3R12 29 67 AV2 0.09 0.05 15 20 5
1.778726
%TW/EFPY A
3R10 3R12 29 67 AV5
-0.12 0.07 11 13 2
0.711491
%TW/EFPY A
3R10 3R12 29 79 AV5
-0.04 0.32 10 11 1
0.355745 %TW/EFPY A
3R10 3R12 29 114 AV2 0
0 15 14
-1
-0.355745 %TW/EFPY A
3R10 3R12 29 114 AV5 0
0 13 14 1
0.355745 %TW/EFPY A
3R10 3R12 30 9
AV5 0
0.59 29 31 2
0.711491
%TW/EFPY A
3R10 3R12 30 10 AV5 0.02
-0.02 16 17 1
0.355745 %TW/EFPY A
3R10 3R12 30 11 AV5 0
0 10 11 1
0.355745 %TW/EFPY A
3R10 3R12 30 40 AV2 0
0 12 13 1
0.355745 %TW/EFPY A
3R10 3R12 30 113 AV5 0
0 27 27 0
0
%TW/EFPY A
3R10 3R12 30 114 AV1 0.02 0.02 10 15 5
1.778726
%TW/EFPY A
3R10 3R12 31 109 AV2
-0.07
-0.07 16 14
-2
-0.711491 %TW/EFPY A
3R10 3R12 32 111 AV4
-0.07
-0.15 18 22 4
1.422981
%TW/EFPY A
3R10 3R12 32 111 AV5 0.16 0.12 17 23 6
2.134472 %TW/EFPY A
3R10 3R12 32 112 AV1
-0.02
-0.48 11 11 0
0
%TW/EFPY A
3R10 3R12 34 15 AV6 0
-0.15 11 12 1
0.355745 %TW/EFPY A
3R10 3R12 34 41 AV3
-0.07 0
15 18 3
1.067236
%TW/EFPY A
3R10 3R12 34 41 AV4
-0.02
-0.1 13 12
-1
-0.355745 %TW/EFPY A
3R10 3R12 34 44 AV3 0.18 0.22 8
8 0
0
%TW/EFPY A
3R10 3R12 34 46 AV3 0.14 0
12 16 4
1.422981
%TW/EFPY A
3R10 3R12 34 46 AV4
-0.07
-0.12 11 13 2
0.711491
%TW/EFPY A
3R10 3R12 34 46 AV5 0.05 0
30 31 1
0.355745 %TW/EFPY A
3R10 3R12 34 46 AV6
-0.18
-0.15 32 33 1
0.355745 %TW/EFPY A
3R10 3R12 34 48 AVl
-0.09
-0.12 19 19 0
0
%TW/EFPY A
3R10 3R12 34 48 AV2 0
-0.05 21 21' 0
0
%TW/EFPY A
3R10 3R12 34 48 AV3
-0.07
-0.2 30 31 1
0.355745 %TW/EFPY A
3R10 3R12 34 73 AV4
-0.09 0.34 30 27
-3
-1.067236 %TW/EFPY A
3R10 3R12 34 73 AV5
-0.3
-0.15 35 31
-4
-1.422981
%TW/EFPY A
3R10 3R12 34 85 AV5 0
0 17 17 0
0
%TW/EFPY A
3R10 3R12 34 91 AV2 0.02 0
13 13 0
0
%TW/EFPY A
3R10 3R12 34 91 AV4 0
-0.15 13 11
-2
-0.711491
%TW/EFPY A
3R10 3R12 34 97 AV3 0.09 0.02 10 16 6
2.134472 %TW/EFPY A
3R10 3R12 34 98 AV4 0.07 0.29 18 16
-2
-0.711491
%TW/EFPY A
3R10 3R12 34 107 AV4 0
0 15 13
-2
-0.711491
%TW/EFPY A
3R10 3R12 34 109 AV4 0.05 0
24 27 3
1.067236
%TW/EFPY A
3R10 3R12 35 49 AV5
-0.27
-0.02 15 18 3
1.067236
%TW/EFPY A
3R10 3R12 35 59 AV2 0
0.07 29 30 1
0.355745 %TW/EFPY A
3R10 3R12 35 59 AV3 0
-0.02 13 14 1
0.355745 %TW/EFPY A
3R10 3R12 35 59 AV4 0
-0.1 10 11 1
0.355745 %TW/EFPY
Serial No.09-125 Docket No. 50-423 Enclosure Page 8 of 27 Table 3 (continued)
Steam Generator A - Repeat AVB Wear Indications SG Old Outage New Outage Row Col Elev Old Offset NewOffset Old %TW New%TW Change Growth Rate A
3R10 3R12 35 59 AV6 0
0.12 20 18
-2
-0.711491 %TW/EFPY A
3R10 3R12 35 60 AV4 0
0.25 27 27 0
0
%TW/EFPY A
3R10 3R12 35 60 AV5 0
0.02 19 20 1
0.355745 %TW/EFPY A
3R10 3R12 35 60 AV6 0
-0.07 10 11 1
0.355745 %TW/EFPY A
3R10 3R12 35 61 AV2 0.02
-0.02 11 16 5
1-778726
%TW/EFPY A
3R10 3R12 35 61 AV4 0.02 0.05 11 14 3
1.067236 %TW/EFPY A
3R10 3R12 35 65 AV2 0.14 0.12 12 16 4
1.422981
%TW/EFPY A
3R10 3R12 35 65 AV3 0.16 0.02 12 16 4
1.422981
%TW/EFPY A
3R10 3R12 35 65 AV4
-0.02 0.12 12 18 6
2.134472 %TW/EFPY A
3R10 3R12 35 65 AV5
-0.02 0.32 14 19 5
1.778726 %TW/EFPY A
3R10 3R12 35 71 AV4
-0.05
-0.12 22 25 3
1.067236 %TW/EFPY A
3R10 3R12 35 71 AV5
-0.11
-0.17 13 13 0
0
%TW/EFPY A
3R10 3R12 35 77 AV2
-0.02 0.07 14 12
-2
-0.711491 %TW/EFPY A
3R10 3R12 35 77 AV3
-0.07
-0.15 21 20
-1
-0.355745 %TW/EFPY A
3R10 3R12 35 77 AV4 0.09 0.07 17 16
-1
-0.355745 %TW/EFPY A
3R10 3R12 35 100 AV3
-0.07
-0.07 14 11
-3
-1.067236 %TW/EFPY A
3R10 3R12 35 108 AV2
-0.05 0
10 12 2
0.711491
%TW/EFPY A
3R10 3R12 35 108 AV3 0
-0.07 12 13 1
0.355745 %TW/EFPY A
3R10 3R12 36 110 AV3
-0.14
-0.14 11 11 0
0
%TW/EFPY A
3R10 3R12 37 45 AV2 0
0.02 28 33 5
1.778726 %TW/EFPY A
3R10 3R12 37 45 AV3 0.11 0.1 14 21 7
2.490217 %TW/EFPY A
3R10 3R12 37 45 AV5
-0.14
-0.12 16 17 1
0.355745 %TW/EFPY A
3R10 3R12 37 56 AV3 0
0.05 16 14
-2
-0.711491 %TW/EFPY A
3R10 3R12 37 56 AV4 0.02 0.15 14 18 4
1.422981
%TW/EFPY A
3R10 3R12 37 69 AV5
-0.07 0.22 18 18 0
0
%TW/EFPY A
3R10 3R12 37 69 AV6
-0.11
-0.1 18 17
-1
-0.355745 %TW/EFPY A
3R10 3R12 37 89 AV3 0.2 0.22 9
10 1
0.355745 %TW/EFPY A
3R10 3R12 37 90 AV3 0.11 0.05 25 25 0
0
%TW/EFPY A
3R10 3R12 37 90 AV4 0
0 16 16 0
0
%TW/EFPY A
3R10 3R12 37 90 AV5 0
0.02 14 17 3
1.067236 %TW/EFPY A
3R10 3R12 37 91 AV3 0.07
-0.17 19 21 2
0.711491
%TW/EFPY A
3R10 3R12 37 91 AV4
-0.05
-0.1 16 19 3
1.067236 %TW/EFPY A
3R10 3R12 37 91 AV5
-0.11
-0.1 29 30 1
0.355745 %TW/EFPY A
3R10 3R12 37 91 AV6
-0.02
-0.12 21 23 2
0.711491
%TW/EFPY A
3R10 3R12 37 92 AV5 0
-0.07 15 16 1
0.355745
%TW/EFPY A
3R10 3R12 37 99 AV3 0.07 0
14 16 2
0.711491
%TW/EFPY A
3R10 3R12 37 100 AV3 0.05
-0.2 19 18
-1
-0.355745 %TW/EFPY A
3R10 3R12 37 100 AV4
-0.05 0
13 16 3
1.067236 %TW/EFPY A
3R10 3R12 37 100 AV5
-0.11 0
19 20 1
0.355745
%TW/EFPY A
3R10 3R12 37 106 AV4 0
-0.1 23 20
-3
-1.067236 %TW/EFPY A
3R10 3R12 37 106 AV5 0
-0.02 20 17
-3
-1.067236 %TW/EFPY A
3R10 3R12 38 52 AV2 0.25 0.22 21 20
-1
-0.355745 %TW/EFPY A
3R10 3R12 38 79 AV6 0
-0.1 13 11
-2
-0.711491 %TW/EFPY A
3R10 3R12 38 86 AV5 0
0 11 12 1
0.355745
%TW/EFPY A
3R10 3R12 38 106 AV3
-0.07
-0.02 25 25 0
0
%TW/EFPY A
3R10 3R12 38 106 AV4
-0.11
-0.1 22 20
-2
-0.711491
%TW/EFPY A
3R10 3R12 38 106 AV5
-0.11
-0.05 21 21 0
0
%TW/EFPY A
3R10 3R12 39 51 AV3 0
0.02 15 15 0
0
%TW/EFPY A
3R10 3R12 39 51 AV4
-0.09 0
11 15 4
1.422981
%TW/EFPY A
3R10 3R12 39 57 AV1 0.09
-0.15 11 12 1
0.355745
%TW/EFPY
Serial No.09-125 Docket No. 50-423 Enclosure Page 9 of 27 Table 3 (continued)
Steam Generator A - Repeat AVB Wear Indications SG Old Outage New Outage R2w Col Elev Old Offset New Offset Old %TW New %TW change Growth Rate A
3R10 3R12 39 57 AV2 0
-0.43 28 27
-1
-0.355745 %TW/EFPY A
3R10 3R12 39 57 AV3 0.02
-0.3 14 15 1
0.355745 %TW/EFPY A
3R10 3R12 39 57 AV4
-0.09
-0.38 16 17 1
0.355745 %TW/EFPY A
3R10 3R12 39 60 AV4 0
0 21 25 4
1.422981
%TW/EFPY A
3R10 3R12 39 70 AV2 0.02 0.07 11 10
-1
-0.355745 %TW/EFPY A
3R10 3R12 39 70 AV3 0.05 0.02 16 16 0
0
%TW/EFPY A
3R10 3R12 39 71 AV4
-0.07
-0.07 20 20 0
0
%TW/EFPY A
3R10 3R12 39 71 AV5
-0.18
-0.2 19 21 2
0.711491
%TW/EFPY A
3R10 3R12 39 75 AV3
-0.09
-0.05 13 13 0
0
%TW/EFPY A
3R10 3R12 39 75 AV5
-0.11
-0.12 17 15
-2
-0.711491 %TW/EFPY A
3R10 3R12 39 75 AV6
-0.09 0
15 15 0
0
%TW/EFPY A
3R10 3R12 39 78 AV3 0
-0.02 16 12
-4
-1.422981
%TW/EFPY A
3R10 3R12 40 45 AV3 0.09 0.12 14 13
-1
-0.355745 %TW/EFPY A
3R10 3R12 40 45 AV4 0.02 0.02 24 30 6
2.134472 %TW/EFPY A
3R10 3R12 40 45 AV5
-0.16 0
18 14
-4
-1.422981
%TW/EFPY A
3R10 3R12 40 51 AV4 0.16
-0.07 20 19
-1
-0.355745 %TW/EFPY A
3R10 3R12 40 51 AV5 0
0.07 31 31 0
0
%TW/EFPY A
3R10 3R12 40 58 AV2
-0.25
-0.18 16 18 2
0.711491
%TW/EFPY A
3R10 3R12 40 58 AV3
-0.18
-0.38 16 23 7
2.490217 %TW/EFPY A
3R10 3R12 40 65 AV2 0.02 0.02 19 22 3
1.067236
%TW/EFPY A
3R10 3R12 40 65 AV3 0
-0.17 11 14 3
1.067236
%TW/EFPY A
3R10 3R12 40 65 AV4 0
-0.15 36 38 2
0.711491
%TW/EFPY A
3R10 3R12 40 65 AV5
-0.02 0
22 26 4
1.422981
%TW/EFPY A
3R10 3R12 40 67 AV3 0
-0.17 12 11
-1
-0.355745 %TW/EFPY A
3R10 3R12 40 71 AV2 0.05 0.07 20 20 0
0
%TW/EFPY A
3R10 3R12 40 71 AV3
-0.18
-0.22 21 21 0
0
%TW/EFPY A
3R10 3R12 40 71 AV4
-0.23
-0.17 28 29 1
0.355745 %TW/EFPY A
3R10 3R12 40 94 AV5 0
0.22 24 23
-1
-0.355745 %TW/EFPY A
3R10 3R12 40 100 AV3 0.02
-0.05 15 14
-1
-0.355745 %TW/EFPY A
3R10 3R12 41 61 AV3 0
-0.22 16 20 4
1.422981
%TW/EFPY A
3R10 3R12 41 61 AV4 0
-0.05 20 26 6
2.134472 %TW/EFPY A
3R10 3R12 41 87 AV4
-0.02
-0.05 18 17
-1
-0.355745 %TW/EFPY A
3R10 3R12 41 101 AV4 0.11 0.1 15 15 0
0
%TW/EFPY A
3R10 3R12 41 102 AV4 0
0 30 30 0
0
%TW/EFPY A
3R10 3R12 41 102 AV5 0
0 18 16
-2
-0.711491
%TW/EFPY A
3R10 3R12 42 33 AV3 0.05 0
19 23 4
1.422981
%TW/EFPY A
3R10 3R12 42 33 AV4 0
-0.1 14 16 2
0.711491
%TW/EFPY A
3R10 3R12 42 37 AV2 0.02 0
9 14 5
1.778726
%TW/EFPY A
3R10 3R12 42 43 AV2 0.05
-0.15 15 19 4
1.422981
%TW/EFPY A
3R10 3R12 42 43 AV3 0.02 0.02 15 16 1
0.355745
%TW/EFPY A
3R10 3R12 42 53 AV3 0
-0.17 12 14 2
0.711491
%TW/EFPY A
3R10 3R12 42 53 AV4
-0.02 0
21 22 1
0.355745
%TW/EFPY A
3R10 3R12 42 53 AV5
-0.14 0
12 16 4
1.422981
%TW/EFPY A
3R10 3R12 42 63 AV3 0.16 0.17 21 18
-3
-1.067236 %TW/EFPY A
3R10 3R12 42 63 AV4 0.05 0.02 14 11
-3
-1.067236 %TW/EFPY A
3R10 3R12 42 63 AV5 0.07 0.02 12 10
-2
-0.711491
%TW/EFPY A
3R10 3R12 42 77 AV2
-0.14
-0.1 13 10
-3
-1.067236 %TW/EFPY A
3R10 3R12 42 77 AV3 0.02 0.07 14 15 1
0.355745
%TW/EFPY A
3R10 3R12 42 77 AV4 0.02
-0.2 25 26 1
0.355745
%TW/EFPY A
3R10 3R12 42 85 AV4 0
-0.02 15 15 0
0
%TW/EFPY
Serial No.09-125 Docket No. 50-423 Enclosure Page 10 of 27 Table 3 (continued)
Steam Generator A - Repeat AVB Wear Indications SG Old Outage New Outage Row Col Elev Old Offset New Offset Old %TW New %TW Change Growth Rate A
3R10 3R12 42 86 AV2 0
0.02 13 12
-1
-0.355745 %TW/EFPY A
3R10 3R12 42 86 AV3 0
0.07 12 13 1
0.355745 %TW/EFPY A
3R10 3R12 42 86 AV4 0
0.05 15 14
-1
-0.355745 %TW/EFPY A
3R10 3R12 42 93 AV3 0.02
-0.05 14 15 1
0.355745 %TW/EFPY A
3R10 3R12 42 93 AV4 0.07
-0.05 22 22 0
0
%TW/EFPY A
3R10 3R12 42 93 AV5 0
0 23 26 3
1.067236
%TW/EFPY A
3R10 3R12 42 98 AV1 0.05
-0.02 14 11
-3
-1.067236 %TW/EFPY A
3R10 3R12 42 98 AV3 0.05 0
32 32 0
0
%TW/EFPY A
3R10 3R12 42 98 AV4 0.05 0
32 31
-1
-0.355745 %TW/EFPY A
3R10 3R12 42 101 AV2 0
-0.02 23 20
-3
-1.067236 %TW/EFPY A
3R10 3R12 42 101 AV3 0
-0.02 18 16
-2
-0.711491
%TW/EFPY A
3R10 3R12 42 101 AV4 0
0.07 28 26
-2
-0.711491
%TW/EFPY A
3R10 3R12 42 101 AV5 0
0.02 30 27
-3
-1.067236 %TW/EFPY A
3R10 3R12 42 102 AV3
-0.02
-0.12 25 22
-3
-1.067236 %TW/EFPY A
3R10 3R12 42 102 AV4 0.07
-0.1 36 34
-2
-0.711491
%TW/EFPY A
3R10 3R12 42 102 AV5 0
0.02 30 28
-2
-0.711491
%TW/EFPY A
3R10 3R12 42 103 AV3 0
-0.15 14 12
-2
-0.711491
%TW/EFPY A
3R10 3R12 42 103 AV4 0
-0.2 14 13
-1
-0.355745 %TW/EFPY A
3R10 3R12 43 20 AV6
-0.02
-0.17 13 10
-3
-1.067236 %TW/EFPY A
3R10 3R12 43 49 AV2 0.02 0.02 11 11 0
0
%TW/EFPY A
3R10 3R12 43 49 AV3 0.11 0
9 12 3
1.067236
%TW/EFPY A
3R10 3R12 43 64 AV3 0
-0.17 9
13 4
1.422981
%TW/EFPY A
3R10 3R12 43 64 AV4 0
-0.3 13 12
-1
-0.355745 %TW/EFPY A
3R10 3R12 43 64 AV5 0
-0.07 15 19 4
1.422981
%TW/EFPY A
3R10 3R12 43 80 AV3 0
0 21 20
-1
-0.355745 %TW/EFPY A
3R10 3R12 43 80 AV4
-0.09
-0.05 21 21 0
0
%TW/EFPY A
3R10 3R12 43 80 AV5
-0.07
-0.1 14 12
-2
-0.711491 %TW/EFPY A
3R10 3R12 43 80 AV6 0.07 0
17 17 0
0
%TW/EFPY A
3R10 3R12 43 87 AV2 0.11 0.12 20 21 1
0.355745
%TW/EFPY A
3R10 3R12 43 87 AV4
-0.05
-0.02 22 22 0
0
%TW/EFPY A
3R10 3R12 43 87 AV5
-0.02
-0.07 23 23 0
0
%TW/EFPY A
3R10 3R12 43 98 AV4 0.09 0.05 20 18
-2
-0.711491 %TW/EFPY A
3R10 3R12 43 98 AV5
-0.16
-0.02 16 15
-1
-0.355745 %TW/EFPY A
3R10 3R12 43 99 AV4 0
-0.02 21 20
-1
-0.355745 %TW/EFPY A
3R10 3R12 43 101 AV3
-0.02
-0.02 14 13
-1
-0.355745 %TW/EFPY A
3R10 3R12 43 101 AV4 0.07
-0.15 23 22
-1
-0.355745 %TW/EFPY A
3R10 3R12 43 101 AV5 0
0 23 21
-2
-0.711491
%TW/EFPY A
3R10 3R12 43 102 AV4 0
0 23 21
-2
-0.711491
%TW/EFPY A
3R10 3R12 43 102 AV5 0
0 23 20
-3
-1.067236 %TW/EFPY A
3R10 3R12 44 64 AV2 0.09 0.02 28 30 2
0.711491
%TW/EFPY A
3R10 3R12 44 64 AV3
-0.16
-0.1 17 19 2
0.711491
%TW/EFPY A
3R10 3R12 44 74 AV4 0
-0.1 17 16
-1
-0.355745 %TW/EFPY A
3R10 3R12 44 74 AV5 0.09 0.25 23 24 1
0.355745
%TW/EFPY A
3R10 3R12 44 74 AV6 0.05 0.05 21 21 0
0
%TW/EFPY A
3R10 3R12 44 75 AV3 0.02 0.05 13 15 2
0.711491
%TW/EFPY A
3R10 3R12 44 96 AV2 0
0 19 16
-3
-1.067236 %TW/EFPY A
3R10 3R12 44 96 AV4 0
0 20 17
-3
-1.067236 %TW/EFPY A
3R10 3R12 44 96 AV5 0
0 17 13
-4
-1.422981 %TW/EFPY A
3R10 3R12 44 98 AVl 0
-0.07 16 13
-3
-1.067236 %TW/EFPY A
3R10 3R12 44 98 AV2 0
-0.05 25 24
-1
-0.355745 %TW/EFPY
Serial No.09-125 Docket No. 50-423 Enclosure Page 11 of 27 Table 3 (continued)
Steam Generator A - Repeat AVB Wear Indications SG Old Outage New Outage Row Col Elev Old Offset New Offset Old %TW New %TW C
Growth Rate A
3R10 3R12 44 98 AV4 0
0 20 19
-1
-0.355745 %TW/EFPY A
3R10 3R12 45 45 AV3
-0.09
-0.1 7
10 3
1.067236 %TW/EFPY A
3R10 3R12 45 98 AV4 0.11 0.05 26 24
-2
-0.711491 %TW/EFPY A
3R10 3R12 45 99 AV4 0
-0.12 21 17
-4
-1.422981 %TW/EFPY A
3R10 3R12 45 99 AV5 0
0 19 13
-6
-2.134472 %TW/EFPY A
3R10 3R12 46 99 AV2 0.16 0.05 12 13 1
0.355745 %TW/EFPY A
3R10 3R12 46 99 AV4
-0.05
-0.07 14 14 0
0
%TW/EFPY A
3R10 3R12 46 99 AV5 0.11 0.02 24 22
-2
-0.711491 %TW/EFPY A
3R10 3R12 47 71 AV2 0.11 0.17 11 11 0
0
%TW/EFPY A
3R10 3R12 47 98 AV3 0.02 0
14 14 0
0
%TW/EFPY A
3R10 3R12 47 99 AV6 0
0 18 15
-3
-1.067236 %TW/EFPY A
3R10 3R12 48 25 AV3
-0.21
-0.07 11 11 0
0
%TW/EFPY A
3R10 3R12 48 26 AV6
-0.18 0
13 12
-1
-0.355745 %TW/EFPY A
3R10 3R12 49 95 AV4 0
-0.05 12 13 1
0.355745 %TW/EFPY A
3R10 3R12 50 29 AV5 0.07
-0.1 14 14 0
0
%TW/EFPY A
3R10 3R12 50 44 AV4 0
-0.1 13 15 2
0.711491
%TW/EFPY A
3R10 3R12 50 44 AV5
-0.05
-0.02 31 31 0
0
%TW/EFPY A
3R10 3R12 50 50 AV4
-0.16
-0.22 18 18 0
0
%TW/EFPY A
3R10 3R12 50 76 AV2 0.05
-0.12 19 23 4
1.422981
%TW/EFPY A
3R10 3R12 50 76 AV3 0
-0.05 14 18 4
1.422981
%TW/EFPY A
3R10 3R12 50 82 AV2 0
0.07 15 18 3
1.067236
%TW/EFPY A
3R10 3R12 50 82 AV3 0
-0.15 17 22 5
1.778726
%TW/EFPY A
3R10 3R12 50 82 AV4 0
-0.12 16 20 4
1.422981
%TW/EFPY A
3R10 3R12 50 86 AV2 0.02
-0.07 11 14 3
1.067236
%TW/EFPY A
3R10 3R12 50 87 AV2 0.05 0.02 28 26
-2
-0.711491
%TW/EFPY A
3R10 3R12 50 87 AV3
-0.05
-0.07 16 14
-2
-0.711491
%TW/EFPY A
3R10 3R12 50 87 AV5 0.09 0
13 13 0
0
%TW/EFPY A
3R10 3R12 50 90 AV2 0
0.02 35 36 1
0.355745 %TW/EFPY A
3R10 3R12 50 90 AV3 0
-0.05 33 35 2
0.711491
%TW/EFPY A
3R10 3R12 50 90 AV4 0
-0.07 16 19 3
1.067236
%TW/EFPY A
3R10 3R12 50 90 AV5 0
0.05 17 16
-1
-0.355745 %TW/EFPY A
3R10 3R12 50 91 AV2 0
0.02 36 35
-1
-0.355745 %TW/EFPY A
3R10 3R12 50 91 AV3 0
-0.2 30 31 1
0.355745 %TW/EFPY A
3R10 3R12 50 91 AV4 0
-0.02 18 16
-2
-0.711491
%TW/EFPY A
3R10 3R12 50 91 AV5 0
0.6 15 13
-2
-0.711491
%TW/EFPY A
3R10 3R12 51 64 AV3 0.11 0.07 13 14 1
0.355745 %TW/EFPY A
3R10 3R12 51 65 AV5
-0.05 0
14 16 2
0.711491
%TW/EFPY A
3R10 3R12 51 66 AV2 0.14 0.07 10 13 3
1.067236
%TW/EFPY A
3R10 3R12 51 66 AV3 0.21 0.05 10 13 3
1.067236
%TW/EFPY A
3R10 3R12 52 66 AV4 0.07 0.6 27 28 1
0.355745
%TW/EFPY A
3R10 3R12 52 90 AV3 0
-0.05 12 13 1
0.355745
%TW/EFPY A
3R10 3R12 52 90 AV4 0.02
-0.07 12 15 3
1.067236
%TW/EFPY A
3R10 3R12 53 81 AVl 0
0 12 14 2
0.711491
%TW/EFPY A
3R10 3R12 53 81 AV3 0
0 26 30 4
1.422981
%TW/EFPY A
3R10 3R12 54 35 AV5 0
-0.07 24 20
-4
-1.422981
%TW/EFPY A
3R10 3R12 54 49 AV2 0.02
-0.12 15 15 0
0
%TW/EFPY A
3R10 3R12 54 49 AV3 0.21 0.15 14 12
-2
-0.711491
%TW/EFPY A
3R10 3R12 59 64 AV6 0.21 0.49 12 10
-2
-0.711491
%TW/EFPY Per Cycle EFPY R010-R12 2.811 Number 248 Mean 0.51 0.18 Std.Dev.
2.45 0.87 95th %tile 5.00 1.78 Maximum 7.00 2.49 Median 0.00 0.00
Serial No.09-125 Docket No. 50-423 Enclosure Page 12 of 27 Table 4 Steam Generator A - Newly Reported AVB Wear Indications SG New Outage Row Col Elev New Offset New %TW A
3R12 24 116 AV6 0.25 13 A
3R12 31 61 AV5
-0.15 10 A
3R12 33 110 AV5 0
12 A
3R12 35 71 AV3
-0.12 11 A
3R12 35 80 AV3
-0.05 10 A
3R12 35 108 AV6 0.02 10 A
3R12 37 45 AV4 0.02 14 A
3R12 39 62 AV5 0
14 A
3R12 39 62 AV6
-0.1 15 A
3R12 40 58 AV4
-0.23 13 A
3R12 40 58 AV5
-0.15 15 A
3R12 45 71 AV2 0.07 13 A
3R12 45 98 AV6
-0.07 15 A
3R12 48 26 AV2 0.07 11 Per Number Mean Std. Dev.
95th %tile Maximum Median Cycle R10-R12
Serial No.09-125 Docket No. 50-423 Enclosure Page 13 of 27 Table 5 Steam Generator C-Repeat AVB Wear Indications SG Old Outage New Outage Row Col Elev Old Offset New Offset Old %TW New %TW Change Growth Rate C
3R10 3R12 25 116 AV6 0
0.19 17 19 2
0.71
%TW/EFPY C
3R10 3R12 34 14 AV2
-0.25
-0.17 14 8
-6
-2.13
%TW/EFPY C
3R10 3R12 34 14 AV5
-0.16 0.02 16 11
-5
-1.78
%TW/EFPY C
3R10 3R12 36 15 AV5
-0.09 0
12 16 4
1.42
%TW/EFPY C
3R10 3R12 36 15 AV6 0.33 0.2 15 15 0
0.00
%TW/EFPY C
3R10 3R12 37 15 AV2
-0.04
-0.1 28 24
-4
-1.42
%TW/EFPY C
3R10 3R12 37 15 AV3 0.02
-0.05 19 11
-8
-2.85 %TW/EFPY C
3R10 3R12 37 15 AV4
-0.07 0
16 9
-7
-2.49 %TW/EFPY C
3R10 3R12 37 15 AV5 0.15 0.07 33 27
-6
-2.13 %TW/EFPY C
3R10 3R12 37 15 AV6 0.17 0.15 18 12
-6
-2.13 %TW/EFPY C
3R10 3R12 37 88 AV3 0.31
-0.02 19 11
-8
-2.85 %TW/EFPY C
3R10 3R12 39 17 AV2 0.11 0.02 18 14
-4
-1.42
%TW/EFPY C
3R10 3R12 39 17 AV3 0.02
-0.02 16 11
-5
-1.78
%TW/EFPY C
3R10 3R12 39 17 AV4 0.02
-0.02 25 17
-8
-2.85 %TW/EFPY C
3R10 3R12 39 17 AV5 0.07 0.05 25 20
-5
-1.78
%TW/EFPY C
3R10 3R12 39 17 AV6 0.13 0.12 19 14
-5
-1.78
%TW/EFPY C
3R10 3R12 39 79 AV3
-0.5
-0.44 23 17
-6
-2.13
%TW/EFPY C
3R10 3R12 41 42 AV3
-0.04 0.05 28 21
-7
-2.49
%TW/EFPY C
3R10 3R12 41 54 AV1 0
0.07 16 11
-5
-1.78
%TW/EFPY C
3R10 3R12 41 54 AV3
-0.45 0.02 24 17
-7
-2.49 %TW/EFPY C
3R10 3R12 41 54 AV4
-0.16
-0.02 21 15
-6
-2.13
%TW/EFPY C
3R10 3R12 41 54 AV5
-0.18 0.02 28 20
-8
-2.85 %TW/EFPY C
3R10 3R12 41 62 AV2
-0.18
-0.22 29 22
-7
-2.49 %TW/EFPY C
3R10 3R12 41 62 AV3
-0.44
-0.44 22 15
-7
-2.49 %TW/EFPY C
3R10 3R12 41 62 AV3 0.24 0.24 29 22
-7
-2.49 %TW/EFPY C
3R10 3R12 41 62 AV4
-0.2
-0.24 24 18
-6
-2.13 %TW/EFPY C
3R10 3R12 41 62 AV4 0.46 0.44 27 22
-5
-1.78
%TW/EFPY C
3R10 3R12 41 62 AV5
-0.15
-0.24 35 29
-6
-2.13 %TW/EFPY C
3R10 3R12 41 65 AV4 0.53 0.34 22 15
-7
-2.49 %TW/EFPY C
3R10 3R12 41 65 AV5 0
0 23 18
-5
-1.78
%TW/EFPY C
3R10 3R12 41 105 AV6
-0.07 0.12 12 13 1
0.36
%TW/EFPY C
3R10 3R12 42 20 AV2 0.02
-0.1 23 16
-7
-2.49
%TW/EFPY C
3R10 3R12 42 20 AV3
-0.09
-0.1 29 24
-5
-1.78
%TW/EFPY C
3R10 3R12 42 20 AV4
-0.07
-0.12 31 25
-6
-2.13
%TW/EFPY C
3R10 3R12 42 20 AV5 0
-0.05 33 25
-8
-2.85
%TW/EFPY C
3R10 3R12 42 20 AV6 0.07
-0.05 22 17
-5
-1.78
%TW/EFPY C
3R10 3R12 42 23 AV3 0
0 25 23
-2
-0.71
%TW/EFPY C
3R10 3R12 42 23 AV4 0.04 0
35 34
-1
-0.36
%TW/EFPY C
3R10 3R12 42 23 AV5 0.09 0
32 31
-1
-0.36
%TW/EFPY C
3R10 3R12 45 100 AV5
-0.11
-0.2 11 9
-2
-0.71
%TW/EFPY C
3R10 3R12 45 100 AV6 0
0 12 11
-1
-0.36
%TW/EFPY C
3R10 3R12 46 33 AV6 0.47 0.51 20 18
-2
-0.71
%TW/EFPY C
3R10 3R12 47 99 AV6 0
-0.07 14 17 3
1.07
%TW/EFPY C
3R10 3R12 48 98 AV3 0.02 0
14 12
-2
-0.71
%TW/EFPY C
3R10 3R12 48 98 AV4 0.02 0
13 12
-1
-0.36
%TW/EFPY C
3R10 3R12 48 98 AV6
-0.02
-0.15 11 10
-1
-0.36 %TW/EFPY C
3R10 3R12 49 96 AV5 0
0 20 20 0
0.00
%TW/EFPY C
3R10 3R12 49 96 AV6 0
0 25 26 1
0.36
%TW/EFPY C
3R10 3R12 50 28 AV5 0.04 0.05 20 18
-2
-0.71
%TW/EFPY C
3R10 3R12 50 93 AV5 0
-0.27 14 12
-2
-0.71
%TW/EFPY
Serial No.09-125 Docket No. 50-423 Enclosure Page 14 of 27 Table 5 Steam Generator C-Repeat AVB Wear Indications SG Old Outage New Outage Row Col Elev Old Offset New Offset Old %TW New %TW Change Growth Rate C
3R10 3R12 50 93 AV6 0
-0.12 24 26 2
0.711 %TW/EFPY C
3R10 3R12 54 36 AV4 0.07 0
25 18
-7
-2.49 %TW/EFPY C
3R10 3R12 54 36 AV5 0.02 0.05 17 11
-6
-2.13 %TW/EFPY C
3R10 3R12 54 86 AV1 0
0.12 13 10
-3
-1.07
%TW/EFPY C
3R10 3R12 56 41 AV2 0.09 0.05 19 12
-7
-2.49
%TW/EFPY C
3R10 3R12 56 41 AV4
-0.11
-0.12 23 14
-9
-3.2
%TW/EFPY C
3R10 3R12 56 41 AV5 0.02 0.02 30 23
-7
-2.49
%TW/EFPY C
3R10 3R12 56 41 AV6
-0.02 0
21 13
-8
-2.85
%TW/EFPY C
3R10 3R12 56 44 AV4 0.04 0.02 12 7
-5
-1.78
%TW/EFPY Per Cycle EFPY R010-R12 2.811 Number Mean Std.Dev.
95th %tile Maximum Median 59Z1I
-4.29 -1.5
Serial No.09-125 Docket No. 50-423 Enclosure Page 15 of 27 Table 6 Steam Generator C - Newly Reported AVB Wear Indications SG New Outage Row Col Elev New Offset New %TW C
3R12 15 66 AV1
-0.32 11 C
3R12 25 8
AV2
-0.17 10 C
3R12 41 62 AV6 0
13 C
3R12 50 28 AV2 0.1 10 C
3R12 54 35 AV5
-0.12 14 Per Number Mean Std. Dev.
95th %tile Maximum Median Cycle R10-R12
Serial No.09-125 Docket No. 50-423 Enclosure Page 16 of 27 Table 7 3R12 Results for Newly Reported Volumetric Degradation (non-AVB related)
Maximum Circ Axial At Least Depth Length Length Suspect One Tube SG Row Col Code Location
(%TW)
(in.)
(in.)
ETSS Cause Bounding?
Comment A
3 112 WAR 06C-1.29" 35 0.39 0.31 27901.1 FO No longer Yes PLP present in present 2005 bobbin data A
58 47 WAR TSC+0.56" 21 0.28 0.26 27901.1 Sled Yes These are both end-tubes in the A
58 76 WAR TSC+0.52" 19 0.31 0.26 27901.1 Sled Yes same row C
3 3
VOL 04C+16.28" 25 0.37 0.33 21998.1 MBMDNG Yes Slight Change I
I IOver Time Present in C
20 72 VOL 02H+5.69" 20 0.31 0.27 21998.1 Fabrication Yes 1985 in 1985 bobbin data TSC+0.53" 19 0.35 0.27 TSC+0.48" 15 0.29 0.19 Overall Axial 0.41" C
36 13 WAR 27901.1 Sled Yes Overall Circ 1.05"
- TSC+0.59" 19 0.33 0.33 TSC+0.34" 16 0.31 0.11 Present in C
44 38 VOL 05H+13.89" 20 0.33 0.28 21998.1 Fabrication Yes 1989 in 1
1 1989 bobbin data C
44 102 WAR TSC+0.52" 17 0.29 0.27 27901.1 Sled Yes C
47 34 WAR TSH+0.40" 18 0.29 0.22 27901.1 FO No longer Yes present C
58 76 WAR TSC+0.51" 19 1.05*
0.30 27901.1 Sled Yes C
59 55 WAR TSC+0.50" 17 0.74 0.27 27901.1 Sled Yes
- Greater than 135 degrees (0.81")
Serial No.09-125 Docket No. 50-423 Enclosure Page 17 of 27 Table 8 3R12 Results for Previously Reported Volumetric Degradation (non-AVB related)
Steam Generator A I
Maximum Circ.
Axial Depth Length Length Signal Change From Previous
- Although the individual flaws are separated and not aligned axially; conservatively, the overall bounding dimensions are used for structural evaluation. The overall dimensions are: Circ Length 0.97" (exceeds 135 degrees); Axial Length 1.39" Note: Highlighted tube was plugged during 3R12
Serial No.09-125 Docket No. 50-423 Enclosure Page 18 of 27 Table 9 3R12 Results for Previously Reported Volumetric Degradation (non-AVB related)
Steam Generator C Maximum Circ.
Axial Signal Change Depth Length Length From Previous SG Row Col Code Location
(%TW)
(in.)
(in.)
ETSS Suspect Cause Inspection?
C 1
5 WAR TSC+3.18" 26 0.35 0.74 27901.1 Known FO.
No Lodged, verified.
C 1
73 WAR TSC+19.57" 17 0.33 0.27 27901.1 FO. No longer No present.
C 1
102 WAR 01C+4.57" 18 0.35 0.33 27901.1 FO. No longer No present.
C 2
103 WAR 02C-6.67" 18 0.37 0.30 27901.1 FO. No longer No present.
C 36 75 WAR 08C-0.79" 26 0.42 0.27 27901.1 FO. No longer No present.
C 38 15 WAR TSC+0.51" 19 0.29 0.36 27901.1 Sled No C
54 64 WAR TSH+0.10" 24 0.37 0.30 27901.1 FO. No longer No present.
C 55 68 WAR TSH+0.66" 21 0.37 0.28 27901.1 FO. No longer No present.
C 56 69 WAR TSH+0.04" 29 0.41 0.25 27901.1 FO. No longer No present.
17 No 56 82 WAR TSC+0.54" 0.86 0.27 27901.1 Sled 16 No 57 44 WAR TSH+0.55" 19 0.41 0.30 27901A..
Sled No WAR TSH+0.52" 18 0.72 0.30 27901.1 Sled No C
58 48 WAR TSC+0.49" 21 0.33 0.30 27901.1 Sled No c 5 49 WAR TSH+0.49" 18 0.45 10.30 27901.1 Sled No WAR TSC+0.56" 17 0.43 0.36 27901.1 Sled No C
58 76 WAR TSH+0.51" 20 0.86**
0.39 27901.1 Sled No C
59 68 WAR TSH+0.53" 18 0.43 0.33 27901.1 Sled No
- Overall size encompassing both indications. Circ extent exceeds 135 degrees (0.81").
- Greater than 135 degrees.
Note: Highlighted tube was plugged during 3R12
Serial No.09-125 Docket No. 50-423 Enclosure Page 19 of 27 Table 10 Steam Generator A - Tube End Indications Total Circ.
Axial Length Circ. Extent Extent SG Row Col Code Volts Location (inch)
(degrees)
(degrees)
A 1
82 SAS 1.65 TEH + 0.09 in.
0.16 A
19 5
MAS 3.43 TEH + 0.12 in.
0.29 A
20 100 MAS 2.35 TEH + 0.13 in.
0.21 A
24 95 scs 1.07 TEH + 0.05 in.
33 A
24 96 SAS 3.30 TEH + 0.11 in.
0.16
Serial No.09-125 Docket No. 50-423 Enclosure Page 20 of 27 Table 11 Steam Generator B - Tube End Indications Total Circ.
Axial Length Circ. Extent Extent SG Row Col Code Volts Location (inch)
(degrees)
(degrees)
B 1
28 SAS 5.43 TEH + 0.09 in.
0.22 B
1 35 SAS 1.04 TEH + 0.38 in.
0.17 B
1 50 SCS 4.49 TEH + 0.06 in.
59 B
1 52 SAS 0.86 TEH + 0.07 in.
0.22 B
1 60 SAS 2.61 TEH + 0.23 in.
0.22 B
1 71 SAS 2.73 TEH + 0.14 in.
0.16 B
1 73 SAS 3.04 TEH + 0.12 in.
0.19 B
1 83 MAS 3.17 TEH + 0.29 in.
0.22 B
1 84 SAS 1.53 TEH + 0.14 in.
0.19 B
1 85 SAS 2.95 TEH + 0.10 in.
0.24 B
1 86 SAS 2.73 TEH + 0.10 in.
0.27 B
1 89 SAS 4.60 TEH + 0.12 in.
0.24 B
2 85 SAS 2.19 TEH + 0.14 in.
0.14 B
2 86 MAS 3.06 TEH + 0.10 in.
0.22 B
2 89 SAS 2.57 TEH + 0.10 in.
0.19 B
2 93 SAS 3.51 TEH + 0.05 in.
0.16 B
2 97 SAS 1.66 TEH + 0.11 in.
0.16 B
2 100 SAS 2.09 TEH + 0.10 in.
0.16 B
3 61 SAS 0.72 TEH + 0.39 in.
0.17 B
3 80 SAS 0.75 TEH + 0.26 in.
0.19 B
3 91 MAS 1.09 TEH + 0.13 in.
0.22 B
4 77 SAS 1.23 TEH + 0.29 in.
0.14 B
5
-9 sci' 1.57
'15 TEH +0.02,in.
135 B
5 85 MAS 3.08 TEH + 0.10 in.
0.27 B
5 92 MAS 2.92 TEH + 0.12 in.
0.22 B
5 95 SAS 2.89 TEH + 0.14 in.
0.19 B
6 G
1MC 2.352 TEH + 0.10 in.
163 B.
-~6'.
6..3..,
'MCI.
3.19 -:TEH +0 06 in 30)7 B
6 89 SAS 0.55 TEH + 0.01 in.
16 B.
7
.48
".:.MCI 355as TEH + 0,8i 136 B
7
,.-78 SCI-
~ '5;32.
TEH+ 0.7 in 134 B.
7 90(
SAS 1.35, TEH + 0.12m in1 B
7 96; SAS 1.79 TEH + 011 in 01 B
- 9.
- 77.
SC 3 39. -.
TEH + 0.06 in12 B
10 56 SCS 1.89 TEH + 0.08 in 62 B
10 81 MCI
.83 TEH + 0.06 in 02 B
11 73 MCI 2 35' TEH +0.0Oin15 B
11 89 SAS 1.38 TEH +0.14 in 02 B
0
- 71.
SC
[
1.97 TEH + 0.05 in.
107 B
J 20 18 SCS 1.91 TEH + 0.05 in.
48 Note: Highlighted tubes were plugged during 3R12
Serial No.09-125 Docket No. 50-423 Enclosure Page 21 of 27 Table 11 (continued)
Steam Generator B - Tube End Indications Total Circ.
Axial Length Circ. Extent Extent SG Row Col Code Volts Location (inch)
(degrees)
(degrees)
B 20 69 Scs 1.64 TEH + 0.07 in.
49 B
21 35 SAS 0.54 TEH + 0.10 in.
0.16 B
22 55 SAS 3.78 TEH + 0.12 in.
0.22 B
22 84 SCS 0.43 TEH + 0.57 in.
32 B
23 50 SAS 5.40 TEH + 0.10 in.
0.24 B
25 67 MAS 2.82 TEH + 0.11 in.
0.25 B
25 88 scs 1.05 TEH + 0.06 in.
42
~ ~
&Q.27w 0 Mcr
- TEH - 0.04 in':.j1,
- 263, B
31 75 SCS 1.91 TEH + 0.58 in.
42 B
37 84 SAS 2.56 TEH + 0.09 in.
0.25 B
39 92 SAS 3.58 TEH + 0.13 in.
0.19 B
0 9
.SCI 404 TE11 +.06 in 97______
~
Note: Highlighted tubes were plugged during 3R12
Serial No.09-125 Docket No. 50-423 Enclosure Page 22 of 27 Table 12 Steam Generator C - Tube End Indications Total Circ.
Axial Length Circ. Extent Extent SG Row Col Code Volts Location (inch)
(degrees)
(degrees)
C 1
24 SAS 3.53 TEH + 0.07 in.
0.20 C
1 28 SAS 1.39 TEH + 0.09 in.
0.17 C
1 44 SAS 3.51 TEH + 0.36 in.
0.28 C
1 49 SAS 5.40 TEH + 0.34 in.
0.36 C
1 51 SCS 6.96 TEH + 0.06 in.
76 C
1 52 SCS 4.83 TEH + 0.12 in.
73 C
1 58 SCS 4.97 TEH +0.05in.
87 SAS 525 TEH + 0.09in 017 C
1 59 SAS 5.34 TEH + 0.27 in.
0,25 c
1 69 scs 1.02 TEH + 0.07 in.
42 C
1 73 SAS 6.22 TEH + 0.09 in.
0.36 1
8 SAS 5.3 TEH + 0.20 in.
0.15 TH+0-107 in.
292 C
1 90 MCI 1,97514 TEH + 0.07 in.
0.24 C
1 69 SCS 1.02 TEH + 0.07 in.
52 C
1 73 SAS 6.22 TEH + 0.05 in.
0.22 C2C 0
TEH + 0.05 in.
108 C
1 785 MAS 6352 16709 3
C 1
86 SAS 414 TEH + O0 in.
02
~
~
SC
- 1.
.Jc 298
+E0.09 in, 52 TEH + 0.07 in 0.26 C
1 90 MAS 1.57 TTEH +0,&1in 0241 85 SS
.5 TEH + 0.29 in..
0.39 C
1 96 SAS 4.14 TEH + 0.04 in.
02 92 8
SCI 2.'978 TEIt+ 0.095in.
527 SAl 5.~425-TEH+0.09 in.
0.24 C
1 93 MCI 1.11 TEH +0.09 in.
1086 C
.95 SCI 532 TEH +0.057in¶...
.24.....'~3 1
962 SCI 40070.0 iE+~
- n.
7713 C
9 SAS 2202 TEH +007in.
0184 C
24 MCI 0831 TEH +0.08in 748 C
2 87 SAS 1042 TEH +0.07in 020 C
199 SA 220 TEH +0.05in.
0218 C
2 91 MAS 2.57 TEH + 0.07 in.
0.26 SC i
3 1
56 1
SCS 5.18 TEH +0.05 in.
42 Note: Highlighted tubes were plugged during 3R12
Serial No.09-125 Docket No. 50-423 Enclosure Page 23 of 27 Table 12 (continued)
Steam Generator C - Tube End Indications Total Circ.
Axial Length Circ. Extent Extent SG Row Col Code Volts Location (inch)
(degrees)
(degrees)
C 3
57 SCS 4.50 TEH + 0.03 in.
48 C
3 103 SAS 5.85 TEH + 0.07 in.
0.30 C
5 70 SAS 3.13 TEH + 0.11 in.
0.30 C
5 83 SCS 0.64 TEH + 0.03 in.
41 C
5 86 SCS 1.41 TEH + 0.08 in.
45 C
5 89 SAS 1.23 TEH + 0.06 in.
0.13 C
6 88 SAS 1.27 TEH + 0.28 in.
0.17 C
7 35 SCS 3.01 TEH + 0.04 in.
48 C
8 95 SAS 9.89 TEH + 0.27 in.
0.42 C
10 59 SCS 0.82 TEH + 0.06 in.
28 C
11 86 SCS 1.43 TEH + 0.60 in.
38 C
11 88 SAS 1.89 TEH + 0.27 in.
0.17 C
12 58 SCS 1.70 TEH + 0.06 in.
35 C
12 97 SAS 1.37 TEH + 0.10 in.
0.15 C
15 85 SAS 3.74 TEH + 0.29 in.
0.30 C
15 88 SAS 0.58 TEH + 0.29 in.
0.15 TEH + 0.09 in.
0.21 C
15 108 MAS 6.25 TEH + 0.07 in.
0.28 TEH +0.13 in.
0.31 TEH + 0.07 in.
0.26 C
16 82 MAS 6.99 TEH + 0.07 in.
0.33 TEH + 0.08 in.
0.33
,..ý,f>EH-+'0.
54 in 2'33.
C16 90 MCI
,~6 TEH +0.5 4,in++Y3 1/2
.~9 1/2
~
~TEH +0.54 n~
3 TEH + 0.02 in.
37 C
17 82 MCS 1.18 92 TEH +0.11 in.
55 C
17 85 SCS 3.26 TEH + 0.03 in.
62 C
17 91 SCS 3.05 TEH + 0.02 in.
45 C
18 89 MAS 1.63 TEH + 0.31 in.
0.21 C
22 46 SCS 2.86 TEH + 0.05 in.
35 C
30 55 SAS 2.18 TEH + 0.13 in.
0.14 C
30 83 SCS 0.36 TEH + 0.07 in.
37 C
31 85 SAS 3.47 TEH + 0.08 in.
0.28 C
31 97 SAS 1.43 TEH + 0.11 in.
0.18 C
35 73 SCS 1.76 TEH + 0.04 in.
45 Note: Highlighted tubes were plugged during 3R12
Serial No.09-125 Docket No. 50-423 Enclosure Page 24 of 27 Table 13 Steam Generator D - Tube End Indications Total Circ.
Axial Length Circ. Extent Extent SG Row Col Code Volts Location (inch)
(degrees)
(degrees)
D 1
37 MAS 3.02 TEH + 0.07 in.
0.16 D
1 40 SAS 4.85 TEH + 0.09 in.
0.26 D
1 54 SAS 2.27 TEH + 0.07 in.
0.18 D
1 61 SAS 1.13 TEH + 0.08 in.
0.18 D
1 84 SAS 3.15 TEH + 0.12 in.
0.21 D
1 87 MAS 6.19 TEH + 0.11 in.
0.21 D
1 88 MAS 6.33 TEH + 0.10 in.
0.24 D
2 62 SAS 1.36 TEH + 0.18 in.
0.21 D
2 68 SAS 1.96 TEH + 0.30 in.
0.24 D
3 85 SAS 4.48 TEH + 0.29 in.
0.29 D
3 90 SAS 4.28 TEH + 0.10 in.
0.16 D
3 94 SAS 3.99 TEH + 0.10 in.
0.19 D
5 59 SAS 2.02 TEH + 0.20 in.
0.34 D
5 72 MAS 5.3 TEH + 0.12 in.
0.37 D
5 94 SAS 1.96 TEH + 0.09 in.
0.19 D
6 36 SAS 1.16 TEH + 0.06 in.
0.16 D
6 94 SAS 1.77 TEH + 0.11 in.
0.16 D
9 30 SCS 2.43 TEC + 0.04 in.
77 D
9 67 SAS 0.98 TEH + 0.26 in.
0.16 D
9 89 SAS 3.03 TEH + 0.09 in.
0.19 D
11 87 SAS 4.6 TEH + 0.09 in.
0.16 D
12 61 MAS 5.78 TEH + 0.28 in.
0.4 D
12 73 SAS 2.85 TEH + 0.09 in.
0.24 D
12 85 SAS 2.47 TEH + 0.11 in.
0.24 D
13 61 SAS 0.91 TEH + 0.24 in.
0.16 D
18 64 SCS 1.24 TEH + 0.16 in.
25 D
20 65 SCS 1.07 TEH + 0.03 in.
36 D
34 71 SAS 1.36 TEH + 0.13 in.
0.24 D
35 84 SAS 2.03 TEH + 0.36 in.
0.18 D
38 72 SAS 1.85 TEH + 0.10 in.
0.18 D
56 75 SAS 1.22 TEH + 0.11 in.
0.21 Note: Highlighted tube was plugged during 3R12
Serial No.09-125 Docket No. 50-423 Enclosure Page 25 of 27
- e. Number of tubes plugged during the inspection outage for each active degradation mechanism, Table 14 provides the count of tubes plugged by degradation mechanism.
Table 14 Tubes Plugged by Degradation Mechanism DEGRADATION SG A SG B SG C SG D PLUGGED PLUGGED PLUGGED PLUGGED AVB Wear 1
0 0
0
>37%TW (discretionary)
Non-AVB Wear 1
0 1
0
>40% TW Tube End Axial and 0
0 4
0 Circ (discretionary)
Tube End ARC >
0 12 6
1 94 degrees
- f. Total number and percentage of tubes plugged to date, Table 15 provides the total number of tubes plugged and the percentages.
Table 15 Tube Plugging Percentages NUMBER SG A SG B SG C SG D PLUGGED PLUGGED PLUGGED PLUGGED PLUGGED Prior to 3R12 36 4
11 82 During 3R12 2
12 11 1
Total After 3R12 38 16 22 83 Percentage 0.675 0.284 0.391 1.475 Overall Percentage 0.711
Serial No.09-125 Docket No. 50-423 Enclosure Page 26 of 27
- g. The results of condition monitoring, including the results of tube pulls and in-situ testing, No tubes were pulled and no in-situ pressure tests were performed. The condition monitoring assessment concluded that the structural integrity, operational leakage and accident induced leakage performance criteria were not exceeded during the operating interval preceding 3R12.
- h. The effective plugging percentage for all plugging in each SG, Since no sleeving has been done in the MPS3 SGs, the effective plugging percentage is the same as the actual plugging percentage.
- i.
Following completion of an inspection performed in Refueling Outage 12 (and any inspections performed in the subsequent operating cycle), the number of indications and location, size, orientation, whether initiated on primary or secondary side for each service induced flaw within the thickness of the tubesheet, and the total of the circumferential components and any circumferential overlap below 17 inches from the top of the tubesheet as determined in accordance with TS 6.8.4.g.c, The response provided under section d includes a listing of all tube end indications detected during 3R12. All multiple circumferential indications were in the same axial plane and thus the circumferential overlap was not applicable. The tables in section d provide the individual circumferential extents as well as the combined extent for the case of multiple circumferential indications that could be separated. Some of the multiple circumferential indications had a single bounding arc length if the individual component signal responses could not be clearly separated.
- j.
Following completion of an inspection performed in Refueling Outage 12 (and any inspections performed in the subsequent operating cycle), the primary-to-secondary LEAKAGE rate observed in each steam generator (if it is not practical to assign leakage to an individual SG, the entire primary-to-secondary LEAKAGE should be conservatively assumed to be from one SG) during the cycle preceding the inspection which is the subject of the report, and The leakage rate at the EOC 12 (prior to 3R1 2) was less than 1 gallon per day (GPD).
The detection threshold is approximately 1 GPD - actual leakage was too small to measure accurately.
Serial No.09-125 Docket No. 50-423 Enclosure Page 27 of 27 Implementation of TS Amendment No. 245 for the IARC provides that the administrative limit for operational leakage should be:
Leakage through faulted SG: 500 GPD - 2.5 x operational leakage of 1 GPD
= 497.5 GPD Assumes Leakage remains below 1 GPD No credit taken for reducing leakage by removing 23 tubes with linear indications from service All leakage is through cracks in the tube ends.
- k. Following completion of an inspection performed in Refueling Outage 12 (and any inspections performed in the subsequent operating cycle), the calculated accident leakage rate from the portion of the tube below 17 inches from the top of the tubesheet for the most limiting accident in the most limiting SG.
With minimal detectable operational leakage, Implementation of TS Amendment No. 245 for the IARC provides that the administrative limit for operational leakage is:
497.5GPD~2.5 = 199GPD Since the 199 GPD is > 150 GPD operational leakage limit, there is no need to implement an administrative limit below the 150 GPD operational limit.
Serial No.09-125 Docket No. 50-423 Page 1 of 2 Attachment I Acronyms ARC Alternate Repair Criteria AVB Anti-Vibration Bar COL Column DNG Ding DNT Dent ECT Eddy Current Testing EFPY Effective Full Power Years ELEV Elevation EOC End of Cycle EPRI Electric Power Research Institute ETSS Examination Technique Specification Sheet FDB Flow Distribution Baffle F/L Full Length FO Foreign Object FOSAR Foreign Object Search and Retrieval GPD Gallons Per Day IARC Interim Alternate Repair Criteria ID Inner Diameter IGA Intergranular Attack MAI Multiple Axial Indication MAS Multiple Axial Signal MBM Manufacturing Burnish Mark MCI Multiple Circumferential Indication MCS Multiple Circumferential Signal MPS3 Millstone Power Station Unit 3 MRPC Motorized Rotating Pancake Coil NQH Non-Quantifiable Historical Indication NQI Non-Quantifiable Indication OD Outer Diameter OVR Over Expansion Above the Tubesheet OXP Over Expansion Within the Tubesheet PDA Percent Degraded Area PLP Possible Loose Part POD Probability of Detection PT Penetrant Testing PWR Pressurized Water Reactor PWSCC Primary Water Stress Corrosion Cracking SAI Single Axial Indication SAS Single Axial Signal SCC Stress Corrosion Cracking SCI Single Circumferential Indication SCS Single Circumferential Signal SG Steam Generator SI Special Interest SSI Secondary Side Inspection SVI Single Volumetric Indication
Serial No.09-125 Docket No. 50-423 Page 2 of 2 Attachment I (continued)
Acronyms TE Tube End TEC Tube End Cold-Leg Side TEH Tube End Hot-Leg Side TS Technical Specification TSC Top of Tube Sheet Cold-Leg Side TSP Tube Support Plate TSH Top of Tube Sheet Hot-Leg Side TTS Top of Tubesheet UT Ultrasonic Testing VOL Volumetric Indication WAR Wear Indication
%TW Percent Through-Wall
Serial No.16-127 Request for Withholding Proprietary Information Enclosure?
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Serial No.09-125 Docket No. 50423 Page 1 of 1