RA-23-0288, End of Cycle 27 (C1 R27) Steam Generator Tube Inspection Report
| ML23320A180 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 11/16/2023 |
| From: | Ellis K Duke Energy Carolinas |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| RA-23-0288 | |
| Download: ML23320A180 (1) | |
Text
Kevin M. Ellis
( ~ DUKE General Manager Nuclear Regulatory Affairs, Policy &
ENERGY Emergency Preparedness Duke Energy 13225 Hagers Ferry Rd., MG011E Huntersville, NC 28078 843.951.1329 Kevin.Ellis@duke-energy.com Serial: RA-23-0288 November 16, 2023 10 CFR 50.4 10 CFR 50.36(C)(5)
United States Nuclear Regulatory Commission ATTN : Document Control Desk Washington , DC 20555-0001 Catawba Nuclear Station, Unit No. 1 Docket No. 50-413 I Renewed License No. NPF-35
Subject:
Catawba Nuclear Station Unit 1, End of Cycle 27 (C1 R27) Steam Generator Tube Inspection Report Ladies and Gentlemen:
In accordance with Catawba Nuclear Station (CNS) Technical Specifications 5.6.8, "Steam Generator Tube Inspection Report," Duke Energy Carolinas, LLC (Duke Energy) is providing the steam generator tube inspection summary report for the CNS , Unit No. 1, Refueling Outage 27 (C1 R27). The report is provided as the Enclosure to this letter.
This submittal contains no regulatory commitments. Should you have any questions concerning this letter, or require additional information, please contact Ryan Treadway, Director - Nuclear Fleet Licensing, at 980-373-5873.
Kevin M. Ellis General Manager, Nuclear Regulatory Affairs, Policy & Emergency Preparedness
Enclosure:
Steam Generator Tube Inspection Summary Report, Catawba Unit 1, C1 R27 (Spring Refueling Outage 2023)
U.S. Nuclear Regulatory Commission Page 2 Serial: RA-23-0288 cc: (w/ enclosure)
S. Williams, NRC Project Manager, NRR L. Dudes, NRC Regional Administrator, Region II D. Rivard, NRC Senior Resident Inspector, Catawba Nuclear Station
U.S. Nuclear Regulatory Commission Serial: RA-23-0288 Enclosure Enclosure Steam Generator Tube Inspection Summary Report, Catawba Unit 1, C1R27 (Spring Refueling Outage 2023)
Catawba Unit 1 EOC-27 Steam Generator Tube Inspection Report Pursuant to Catawba technical specification 5.6.8 and industry guidance the following information is provided:
Background
Catawba Nuclear Station Unit 1 utilizes a Recirculating Steam Generator (SG) design for primary to secondary heat transfer. There are four steam generators per unit, with reactor coolant flow divided among the four. The Catawba Unit 1 RSGs are Model CFR80, manufactured by Babcock and Wilcox Canada and were replaced at EOC 9 in 1996. Each steam generator has 6,633 tubes constructed of thermally treated Inconel Alloy 690 (I-690) with an outside diameter of 0.688 inches and nominal wall thickness of 0.040 inches.
The tubes are hydraulically expanded full depth of the tubesheet, complete from the primary to secondary face, and flush seal welded at the primary face. There are 119 rows and 143 columns in the tube bundle for a total of 6,633 tubes.
On the secondary side, the tubes are supported using lattice grids and U-Bend restraints (commonly referred to as fanbars). There are 9 lattice grid tube support plates arranged vertically along the SG above the tubesheet. There are 8 fanbars per steam generator. They are arranged in a fan-shaped orientation, connected by connector bars. A visual representation of the SGs was provided in the McGuire Unit 2 Steam Generator Tube Inspection Report (Adams Accession Number is ML22088A236).
No deviations have been taken from industry guidelines.
The nominal Thot is ~615 degrees Fahrenheit.
Catawba Unit 1 has implemented a measurement uncertainty uprate.
There has been no detectable primary to secondary leakage since the last inspection at EOC-24.
Report
- a. The scope of inspections performed on each SG.
Bobbin Inspection x Full length of 100% of the in-service tubes.
Array Inspection x 100% of periphery tubes (5 tubes in from periphery) with array probe from top of tubesheet to the first support in both hot leg (TSH to 01H) and cold leg (TSC to 01C).
x Special interest inspections were also performed on selected indications.
o 100% of all bobbin I-codes, PRX, and PLP.
o 100% of new dent and new percent through wall calls Primary Visual Inspections x Previously installed plugs x Bowl cladding inspections Secondary Side Inspections x Foreign object search and retrieval (FOSAR) of the tubesheet in all 4 steam generators x Sludge Lancing
x Visual inspection of the upper most lattice grid in 1D SG only x Visual inspection of the steam drum in 1D SG only
- b. The nondestructive examination techniques utilized for tubes with increased degradation susceptibility.
There are no tubes with increased degradation susceptibility.
- c. For each degradation mechanism found:
- 1. The nondestructive examination techniques utilized.
The bobbin probe was utilized for the detection of wear at support structures, freespan locations and to size wear at support structures. The array probe was used to size the foreign object wear.
- 2. The location, orientation (if linear), measured size (if available), and voltage response for each indication. For tube wear at support structures less than 20 percent through-wall, only the total number of indications needs to be reported.
There were 350 indications of fanbar (FB) wear reported. Sixty-nine (69) of these indications were newly reported. The deepest of fanbar wear indication was 29% TW. There are 338 indications of fanbar (FB) wear less than 20%TW. The average growth rate was near zero. The largest 95th percentile growth rate among all SG is 0.72%TW/EFPY. There were six (6) indications of lattice grid (LG) wear reported, all of them are less than 20%TW. One (1) indication was newly reported. The deepest of lattice grid wear indications was 12% TW. The average growth rate for lattice grid wear was near zero. The maximum growth rate for repeat indications was 1.20%TW/EFPY. The growth rate of the new 10%TW indication is 1.19%TW/EFPY. There were eighteen (18) indications of presumed foreign object (FO) wear reported. The deepest of FO wear indication was 41% TW. All but two were historical and showed no growth. The two (2) new indications, both in 1C SG at TSH, had no loose part indication and visuals in the area confirmed no FO was present. One of the new indications in tube, 1C SG R104-C83, was plugged due to presumed foreign object wear greater than or equal to 40% TW and stabilized on the hot leg. The other new indication adjacent to the plugged tube had an 18% TW presumed foreign object wear indication. Two presumed foreign object wear indications in EOC-24 were reclassified as HNC in EOC-27.
Indications that can be traced back to the baseline due to manufacturing or material related properties and have exhibited no change in the bobbin signal are assigned a historical no change HNC bobbin code. Therefore, there are no service induced HNC indications to report.
- 3. A description of the condition monitoring assessment and results, including the margin to the tube integrity performance criteria and comparison with the margin predicted to exist at the inspection by the previous forward-looking tube integrity assessment.
The cumulative SG EFPY for EOC-24 was 20.21, EOC-25 was 21.58, EOC-26 was 22.93 and EOC-27 was 24.37. The last inspection was at EOC-24.
As of EOC-27, the Catawba Unit 1 steam generators had operated 23.25 EFPY since the first in-service inspection after replacement. In total, the Catawba Unit 1 steam generators had operated 24.37 EFPY since replacement.
Condition monitoring structural and leakage integrity were met for fanbar, lattice grid and foreign object wear.
An NDE maximum depth call of 49.1 %TW or less for fanbar wear is sufficient to demonstrate a PLQLPXPGHJUDGHGWXEHEXUVWSUHVVXUHRI3050 psi, at 0.95 probability with 50%
confidence. The worst-case depth call for fanbar wear observed during the inspection was an NDE depth of 29%TW.
An NDE maximum depth call of 51.4 %TW or less for lattice grid wear is sufficient to GHPRQVWUDWHDPLQLPXPGHJUDGHGWXEHEXUVWSUHVVXUHRI3050 psi, at 0.95 probability with 50% confidence. The worst-case depth call for lattice grid wear observed during the inspection was an NDE depth of 12%TW.
An NDE maximum depth call of 51.9%TW or less for FO wear is sufficient to demonstrate a minimum degraGHGWXEHEXUVWSUHVVXUHRI3050 psi, at 0.95 probability with 50%
confidence. The worst case depth call for FO wear observed during the inspection was an NDE depth of 41%TW.
The table below shows the comparison with the margin predicted to exist at the inspection by the previous forward-looking tube integrity assessment to the current as found degradation Degradation EOC-27 Projection (%TW) EOC-27 As Found (%TW)
FB Wear Maximum Depth (Repeat) 46.5 29 FB Wear Maximum Depth (New) 44.3 14 LG Wear Maximum Depth (Repeat) 25.3 12 LG Wear Maximum Depth (New) 34.1 10 FO Wear Maximum Depth (Repeat) No growth 27 FO Wear Maximum Depth (New) <53.1 41 No degradation was detected in the plug visual or bowl cladding inspections.
No in-situ tests or tube pulls were performed.
- 4. The number of tubes plugged during the inspection outage.
There was one (1) tube plugged in 1C SG during the EOC-27 inspection outage.
Steam Generator Row Tube Reason Location 1C 104 83 FO wear @ 41%TW TSH+0.15
- d. An analysis summary of the tube integrity conditions predicted to exist at the next scheduled inspection (the forward-looking tube integrity assessment) relative to the applicable performance criteria, including the analysis methodology, inputs, and results.
The operational assessment was determined deterministically for the worst-case flaw.
Degradation Maximum depth projected OA Limit Growth rate Projected EFPY at next inspection (%TW) (%TW/EFPY)
(%TW)
FB Wear 50.3 52 2.0 7.3 LG Wear 41.1 54.3 3.0 7.3 For FO wear, since conditional monitoring was met and there is no mechanism for future growth then tube integrity is expected to be met at the next inspection.
- e. The number and percentage of tubes plugged to date, and the effective plugging percentage in each SG.
Steam Generator1 1A 1B 1C 1D Total Prior to EOC-27 8 0 24 17 49 EOC-27 0 0 1 0 1 Total 8 0 25 17 50
% Plugged/Effective Plugging (%) 0.12 0.00 0.38 0.26 0.19 1= There are 6633 tubes per steam generator
- f. The results of any SG secondary side inspections.
During FOSAR, a total of ninety-one (91) metallic objects were found with thirty-four (34) removed and fifty-seven (57) remaining in the steam generators. There were no indications of wear associated with any of these foreign objects. The parts remaining in the steam generators were evaluated and deemed acceptable for continued operation for the next five cycles.
A visual examination of the 7th lattice grid support was performed in 1D SG. The examination was performed above the 7th lattice grid and included several inner bundle passes and a drop-down inspection to the top of the 6th lattice grid. The purpose was to assess the material condition and cleanliness of this region of the SG. No evidence of degradation was identified. Deposit loading on the tube and structure surfaces, and within lattice openings was observed and prevented inspections from going through the entire bundle.
Visual examinations were also performed in the 1D SG steam drum to assess the material condition of the subcomponents in this region. The primary and secondary separators were of particular interest due to flow accelerated corrosion (FAC) susceptibility of the materials in these components and a history of FAC in the McGuire Unit 2 secondary separators.
The separators were last inspected in EOC24 and a comparison of 14 separator baseplates inspected at both EOC24 and EOC27 show no visible change in the erosion patterns on the baseplate in area and no visible perforations. This potentially indicates that the erosion on the baseplates has either stopped or is progressing at a negligible rate and is not expected to cause any performance issues or potential foreign objects. A slight difference in color of the deposit coating was observed for separators based on their location on the hot or cold leg side of the SG, with the cold leg separators having an orange color (likely hematite) compared to a gray color (likely magnetite) on the hot leg separators. The cause of this difference is unknown but is not expected to be a concern.
Inspections of the sidewalls of the separators did not identify any holes or signs of FAC, however, a couple of separators had a more polished texture of the magnetite buildup typical of most separators.
Additionally, the area around the longitudinal weld of several separators showed signs of erosion of the magnetite layer which aligns with operating experience of similar model SGs.
The inspections also included several primary separators, venturi nozzles, the weld along the secondary deck, and the hatch. No erosion or damage was observed at any of these locations.
Sludge Lancing removed 56 pounds of sludge total with 13 pounds removed from 1A SG, 15 pounds removed from the 1B SG, 14 pounds removed from the 1C SG, and 14 pounds removed from the 1D SG.
Approximately 4,671 pounds of iron are contained in the four steam generators by iron transport at cycle
- 27. Deposit mapping predicts there are 5,642 pounds total deposit in all four steam generators at the end of cycle 27.
List of tube wear at support structures indications greater than or equal to 20%TW Catawba 1, EOC-27
SG - A Attachment - Tube Wear at Support Structures gte 20%TW Catawba 1 1EOC27 DCP 20230401 10/10/2023 18:13:27
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l SGID ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDX UTIL3l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l SGID ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDX UTIL3l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
Tubes: 0 Records: 0 1 ST Max
SG - B Attachment - Tube Wear at Support Structures gte 20%TW Catawba 1 1EOC27 DCP 20230401 10/10/2023 18:13:26
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l SGID ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDX UTIL3l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l B 97 70 .69 272 PCT 23 P5 FB5 -.82 WAR TEC TEH .560 ZBAHS 15 H 49 l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l SGID ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDX UTIL3l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
Tubes: 1 Records: 1 1 ST Max
SG - C Attachment - Tube Wear at Support Structures gte 20%TW Catawba 1 1EOC27 DCP 20230401 10/10/2023 18:13:26
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l SGID ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDX UTIL3l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l C 79 62 .55 256 PCT 20 P5 FB4 -1.24 WAR TEC TEH .560 ZBAHS 16 H 135 l l l l C 102 69 .56 69 PCT 20 P5 FB6 1.59 WAR TEC TEH .560 ZBAHS 15 H 133 l l l l C 83 76 .91 276 PCT 28 P5 FB5 -.80 WAR TEC TEH .560 ZBAHS 12 H 47 l l l l C 85 76 .86 254 PCT 27 P5 FB5 -1.11 WAR TEC TEH .560 ZBAHS 10 H 135 l l l l C 102 77 .59 87 PCT 20 P5 FB4 -.92 WAR TEC TEH .560 ZBAHS 8 H 135 l l l l C 97 78 .80 61 PCT 25 P5 FB6 -1.68 WAR TEC TEH .560 ZBAHS 7 H 155 l l l l C 97 86 .97 243 PCT 29 P5 FB6 -.77 WAR TEC TEH .560 ZBAHS 7 H 126 l l l l C 105 88 .57 250 PCT 20 P5 FB5 -.74 WAR TEC TEH .560 ZBAHS 7 H 138 l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l SGID ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDX UTIL3l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
Tubes: 8 Records: 8 1 ST Max
SG - D Attachment - Tube Wear at Support Structures gte 20%TW Catawba 1 1EOC27 DCP 20230401 10/10/2023 18:13:27
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l SGID ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDX UTIL3l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l D 97 68 .84 245 PCT 26 P5 FB5 -.73 WAR TEC TEH .560 ZBAHS 18 H 143 l l l l D 100 69 .58 64 PCT 20 P5 FB6 1.63 WAR TEC TEH .560 ZBAHS 18 H 138 l l l l D 53 76 .63 263 PCT 22 P5 FB4 1.84 WAR TEC TEH .560 ZBAHS 25 H 79 l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l SGID ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDX UTIL3l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
Tubes: 3 Records: 3 1 ST Max
List of foreign object wear indications Catawba 1, EOC-27
SG - A Attachment - Presumed Foreign Object Wear Catawba 1 1EOC27 DCP 20230401 10/12/2023 10:23:42
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l SGID ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDX UTIL3l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l A 69 112 .93 60 PCT 19 207 07H .35 17902.1 .14 .14 07H TEH .560 ZYAX2 44 H 413 l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l SGID ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDX UTIL3l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
Tubes: 1 Records: 1 1 ST Max
SG - B Attachment - Presumed Foreign Object Wear Catawba 1 1EOC27 DCP 20230401 10/12/2023 10:23:41
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l SGID ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDX UTIL3l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l B 10 11 .22 129 PCT 12 203 TSH .23 17902.1 .23 .14 01H TEH .560 ZYAX2 1 H 44 l l l l B 73 18 .36 128 PCT 12 207 TSH .13 17902.1 .20 .20 01H TEH .560 ZYAX2 1 H 349 l l l l B 75 18 .66 111 PCT 16 207 TSH .23 17902.1 .20 .20 01H TEH .560 ZYAX2 2 H 265 l l l l B 72 19 .34 109 PCT 12 207 TSH .18 17902.1 .20 .19 01H TEH .560 ZYAX2 1 H 342 l l B 72 19 .29 111 PCT 11 207 TSH .25 17902.1 .20 .20 01H TEH .560 ZYAX2 1 H 342 l l l l B 106 103 .22 98 PCT 10 207 TSH 7.42 17902.1 .20 .14 01H TEH .560 ZYAX2 4 H 122 l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l SGID ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDX UTIL3l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
Tubes: 5 Records: 6 1 ST Max
SG - C Attachment - Presumed Foreign Object Wear Catawba 1 1EOC27 DCP 20230401 10/12/2023 10:23:43
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l SGID ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDX UTIL3l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l C 46 7 .28 101 PCT 11 207 TSH 9.19 17902.1 .34 .20 01H TEH .560 ZYAX2 32 H 137 l l l l C 104 37 .24 264 PCT 10 207 TSH 11.84 17902.1 .23 .20 01H TEH .560 ZYAX2 32 H 23 l l l l C 3 66 .21 265 PCT 9 166 TSC 1.86 17902.1 .23 .27 01C TEC .560 ZYAX2 1 C 897 l l l l C 2 67 .50 276 PCT 14 90 TSC 1.72 17902.1 .38 .27 01C TEC .560 ZYAX2 2 C 833 l l l l C 1 70 .36 76 PCT 12 78 TSC 1.62 17902.1 .32 .41 01C TEC .560 ZYAX2 2 C 831 l l l l C 103 82 .85 295 PCT 18 207 TSH .16 17902.1 .20 .14 09C TEH .560 ZYAX2 33 H 27 l l l l C 104 83 4.48 79 PCT 41 207 TSH .15 17902.1 .18 .20 01H TEH .560 ZYAX2 36 H 17 l l l l C 92 115 .20 84 PCT 9 207 TSC 17.76 17902.1 .29 .20 01C TEC .560 ZYAX2 2 C 370 l l l l C 93 116 .21 283 PCT 9 207 TSC 15.84 17902.1 .27 .27 01C TEC .560 ZYAX2 2 C 369 l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l SGID ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDX UTIL3l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
Tubes: 9 Records: 9 1 ST Max
SG - D Attachment - Presumed Foreign Object Wear Catawba 1 1EOC27 DCP 20230401 10/12/2023 10:23:42
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l SGID ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDX UTIL3l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l D 97 34 .47 125 PCT 14 207 TSC .31 17902.1 .20 .20 01C TEC .560 ZYAX2 6 C 581 l l l l D 99 34 1.84 66 PCT 27 207 TSC .20 17902.1 .20 .20 01C TEC .560 ZYAX2 6 C 584 l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
l SGID ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDX UTIL3l
+------+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+---------+
Tubes: 2 Records: 2 1 ST Max