ML20029D405
| ML20029D405 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 04/26/1994 |
| From: | Marsh W SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9405050320 | |
| Download: ML20029D405 (19) | |
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, Southern California Edison Company 23 PARKER STREET IRVINE. CALIFORNIA 92718 WALT EH C. MAHSH Pril 26, 1994 m,_
MANAGE H OF NUCLE.AR REGULATORY AFFAIF45 (714) 454 4403 i
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- U. S. Nuclear Regulatory Commission l Document Control Desk l Washington, D. C. 20555 1
Subject:
Docket No. 50-362
. Special Report, Inservice Inspection of Steam Generator Tubes
! San Onofre Nuclear Generating Station, Unit 3 i
References:
A. PWR Steam Generator Examination Guidelines, Revision 3,
. Electric Power Research Institute (EPRI) Report Number NP-6201, dated November 1992.
I B. Letter from W. C. Marsh (SCE) to Document Control Desk
. (USNRC) dated November 8,'1993.
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. C. Letter from W. C. Marsh (SCE) to K. E. Perkins, Jr.,
j (USNRC, Region V) dated December 3, 1993 i
! Pursuant to Surveillance Requirement 4.4.4.5(b) of Appendix A, Technical l Specifications to Facility Operating License NPF-15, this report is being i submitted to the Commission following the completion of an inservice j inspection of steam generator tubes at San Onofre Unit 3.
l Eddy current inspection of the steam generator tubing was completed on l November 18, 1993. A total of 13,594 tubes (74.9% of the tubes in service) in i
! two steam generators were inspected full length and 59 tubes were removed from i service by mechanical plugging. This inspU tion significantly exceeded the amount of tubing required.to be inspected ; # Surveillance Requirements 4.4.4.0 through 4.4.4.2, including all prospective C-2 expansions [i.e., a 3%
sample plus a 6% (2S) and a 12% (4S) expansion in each steam generator].
The planned inspection programs for both steam generators were consistant with industry recommendations in the "PWR Steam Generator Examination Guidelines" (Reference A). The planned programs were'previously described in Reference B.
The inspection programs for both steam generators were expanded. The expansions included local bounding of tubes to be plugged, local bounding of all tubes indicating the presence of foreign material, and inspection of all tubes within 5 tubes of the periphery of the tube bundle due to the potential for presence of foreign material.
Detailed information regarding foreign material was reported in Reference C.
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l Document Control Desk 2 l
In Steam Generator E-088, 7020 tubes were inspected full length. Two tubes were found to be defective due to a 54% throughwall indication and a 51%
throughwall indication, respectively, at vertical strap support locations. ,
Two tubes were found to be defective due to a 100% throughwall indication and a 44% throughwall indication, respectively, just above the secondary face of the tubesheet on the outlet end of the tubes. The indications in these two tubes resulted from the presence of foreign material. Also, one tube was found to be defective due to a 74% throughwall indication at 11.75 inches above the secondary face of the tubesheet on the outlet end of the tube. This indication initiated on the outer tube wall. Inspection of this indication by the motorized rotating pancake coil (MRPC) probe revealed a volumetric indication (i.e., no specific axial or circumferential aspect). All five of the defective tubes described in this paragraph were plugged.
Also in Steam Generator E-088, the following number of tubes were preventively plugged for the indicated reason. Seventeen tubes were preventively plugged due to the presence of foreign material. Eight tubes were preventively plugged due to degradation at a batwing support. Six tubes were preventively plugged due to degradation at a vertical strap support. Two tubes were preventively plugged due to non-quantifiable indications at locations not associated with supports (i.e., in freespan tubing). These two non-quantifiable indications were volumetric (i.e., no specific axial or circumferential aspect). Two tubes were preventively plugged due to quantified indications (23% throughwall and 27% throughwall, respectively) at j locations not associated with supports. These two quantified indications were volumetric. One tube was preventively plugged due to wear induced degradation at the lowest eggcrate support on the inlet end of the tube. One tube was preventively plugged due to tie-rod denting.
In Steam Generator E-089, 6574 tubes were inspected. The following number of tubes were preventively plugged for the indicated reason. Seven tubes were preventively plugged due to tie-rod denting. Four tubes were preventively plugged due to the presence of foreign material. Three tubes were preventively plugged due to degradation at a vertical strap support. One tube was preventively plugged due to a non-quantifiable/ single volumetric indication at a location not associated with a support (i.e., in freespan tubing). One tube was preventively plugged due to a single volumetric indication at an eggcrate support on the outlet end of the tube. One tube was preventively plugged due to wear induced degradation at an eggcrate support on the outlet end of the tube. :
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Document Control Desk 3 As required by Surveillance Requirement 4.4.4.5(b), complete results of the recently completed inservice inspection of steam generator tubing are provided in the enclosures. Enclosure 1 provides the steam generator internal location reference guide. The eddy current indication locations listed in the remaining enclosures are based upon this guide. Enclosure 2 provides a list of abbreviations used to describe the indications from MRPC probe testing in the remaining enclosures. Enclosures 3 and 5-provide a list of eddy current testing indications, including tube identification, indication depth for bobbin probe indications, indication description for MRPC probe indications, and the axial location of the indication in the tube. Enclosures 4 and 6 i provide a list cf tubes plugged after completion of the inservice inspection. )
If you require any additional information, please so advise.
Sincerely, ab el Enclosures (6) cc: L. J. Callan, Regional Administrator, NRC Region IV K. E. Perkins, Jr., Director Walnut Creek Field Office, NRC Region IV M. B. Fields, NRC Project Manager, San Onofre Units 2 and 3 J. A. Sloan, Senior Resident Inspector, San Onofre Units 1, 2 & 3 Institute of Nuclear Power Operations (INP0) l l
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Page 1 of 3 Enclosure 1 CE MODEL 3410 TUBE SUPPORT DRAWING VH2 VSM VC2 VH1 VH3 VC3 VC1 1 I I I DBH ' ?
i i I ' DBC 10H ===== 10C t
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Enclosure 1 CLARIFICATION OF TUBING / SUPPORT INTERFACES AB0VE THE 7TH FULL EGGCRATE SUPPORT B_0W(S) TVBING/ SUPPORT INTERFACES 120-147 08H.09H.10H.DBH.VHl.VH2.VH3.VSM.VC3.VC2 VC1.DBC.100.09C.08C l
115-119 08H.09H DBH.VHl VH2.VH3 VSM.VC3.VC2.VCl DBC 09C.08C I
84-114 08H.09H DBH VH2 VH3.VSM.VC3.VC2 DBC 09C.08C l
l 83 08H DBH VH2.VH3.VSM.VC3.VC2 DBC 08C 51-82 08H DBH VH3.VSM.VC3. DBC 08C 49-50 08H DBH VSM DBC 08C 19-48 DBH VSM DBC 1-18 DBH DBC I
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- Enclosure 2 LIST OF ABBREVIATIONS USED TO DESCRIBE THE INDICATIONS FROM MRPC PROBE TESTING Abbreviation Explanation of the Abbreviation SCI Single Circumferential Indication MCI Multiple Circumferential Indicationc SAI Single Axial Indication MAI Multiple Axial Indications SVI Single Volumetric Indication (i.e., no specific axial or circumferential aspect) l 1
1 Enclosure 3 l CUMULATIVE REPORT l 11/93, SOUTHERN CALIFORNIA EDISON, SAN ONOFRE, UNIT 3 l
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STEAM GENERATOR : 88 PAGE: 1 OF 6 OUTAGE DATA SET : CURRENT DATE: 02/02/94 SELECTION VARIABLES: Percent TIME: 09:12:48 i
EXAM EXTENT CURRENT ROW COL HEAT # LEG PROGRAM ACTUAL EXP CAL. PROBE LOCATION VOLTS MIL DEG % CH 30 4 H TSH-TSH TSH-TSH 00091 600RC TSH+ 0.00 4.56 168 SVI 4 22 4 H TSH-TSH TSH-TSH 00024 600RC TSH+ 0.01 7.10 66 SVI P 1 H TSH-TSH TSH-TSH 00024 600RC TSH+ 0.62 3.15 78 SVI 4 43 5 C TEC-TEH TEC-TEH 00009 580UL 04C- 0.09 0.52 0 <20 P2 106 28 C TEC-TSH TEC-TSH 00015 580UL VC3- 0.82 8.27 0 54 P2 C TEC-TSH TEC-TSH 00015 580UL VC3+ 0.70 1.15 0 27 P2 102 30 C TEC-TEH TEC-TEH 00016 5800L 08C- 0.80 0.77 0 21 P2 104 30 C TEC-TEH TEC-TEH 00016 580UL VH2- 0.75 0.97 0 25 P2 C TEC-TEH TEC-TEH 00016 580UL VH2+ 0.78 1.09 0 27 P2 C TEC-TEH TEC-TEH 00016 580UL VC2+ 0.89 0.42 0 <20 P2 107 31 C TEC-TEH TEC-TEH 00016 580UL VH2- 0.88 0.47 0 <20 P2 76 34 C TEC-TEH TEC-TEH 00020 5800L VH3+ 0.66 0.56 0 <20 P2 114 34 C TEC-TEH TEC-TEH 00020 580UL DBC+ 1.68 0.58 0 <20 P2 112 38 C TEC-TEH TEC-TEH 00021 580UL VC2- 0.29 0.60 0 <20 P2 112 40 C 07C-08C 07C-08C 00072 600RC 07C+ 20.43 2.19 138 SVI 4 C TEC-TEH TEC-TEH 00022 580UL 07C+ 19.46 0.63 140 27 1 27 45 C TEC-TEH TEC-TEH 00025 580UL 02H+ 23.82 0.93 153 <20 1 86 46 C TEC-TEH TEC-TEH 00030 580UL 08H+ 2.53 0.90 146 24 1 71 47 C TEC-TEH TEC-TEH 00025 580UL VSM- 1.06 0.97 0 25 P2 76 48 C TEC-TEH TEC-TEH 00030 580UL VSM- 0.99 0.56 0 <20 P2 C TEC-TEH TEC-TEH 00030 580UL VSM+ 0.99 0.87 0 22 P2 94 48 C TEC-TEH TEC-TEH 00032 580UL VH2+ 0.85 0.93 0 26 P2 112 48 C TEC-TEH TEC-TEH 00030 580UL VSM+ 0.84 2.98 0 42 P2 C TEC-TEH TEC-TEH 00030 5800L VC3- 0.68 1.34 0 30 P2 C TEC-TEH TEC-TEH 00030 5800L VC2- 0.74 0.82 0 22 P2 113 49 C TEC-TEH TEC-TEH 00030 580UL DBH+ 1.31 0.41 0 <20 P2 131 51 C TEC-TEH TEC-TEH 4 00031 580UL DBC+ 1.43 0.63 0 22 P2 ,
134 52 C TEC-TEH TEC-TEH 00031 580VL DBC+ 1.55 1.51 0 36 P2 112 58 C TEC-TEH TEC-TEH 00032- 800L VH2+ 1.21 0.68 0 21 P2 C TEC-TEH TEC-TEH 00032 580UL VH3+ 1.21 0.54 0 <20 P2 107 59 C TEC-TEH TEC-TEH 00032 580UL VH2+ 0.88 0.91 0 25 P2 C TEC-TEH TEC-TEH 00032 580UL VH3- 0.78 1.17 0 29 P2 C TEC-TEH TEC-TEH 00032 580UL VC2+ 0.94 6.15 0 51 P2 139 61 C TEC-TEH TEC-TEH 4 00033 580UL DBH- 1.36 2.39 0 41 P2 j 140 62 C TEC-TEH TEC-TEH 4 00033 580UL 09H+ 0.63 0.50 0 <20 P2 81 65 C TEC-TEH TEC-TEH 00040 5800L VSM+ 0.91 0.94 0 23 P2 141 65 C TEC-TEH TEC-TEH 00033 580UL DBC+ 1.68 0.40 0 <20 P2 l 118 66 C TEC-TEH TEC-TEH 00033 5800L 06H+ 3.33 0.95 154 <20 1
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142 66 C TEC-TEH TEC-TEH 00033 580UL DBC+ 1.41 0.48 0 <20 P2 j 82 68 C TEC-TEH TEC-TEH 00035 580UL VH3- 0.88 0.58 0 <20 P2 j 110 68 C TEC-TEH TEC-TEH 00035 580UL VH2- 0.89 0.73 0 <20 P2 '
130 68 C TEC-TEH TEC-TEH 00035 5800L VH1+ 0.92 0.96 0 23 P2 l 142 68 C TEC-TEH TEC-TEH 00035 580UL DBH+ 2.32 1.94 0 35 P2 l C TEC-TEH TEC-TEH 00035 580UL DBC+ 1.59 1.04 0 25 P2 l 43 69 C TEC-TEH TEC-TEH 00029 580UL VSM- 0.96 0.69 0 <20 P2 i
CONAM NUCLEAR, INC.
i CUMULATIVE REPORT 11/93, SOUTHERN CALIFORNIA EDISON, SAN ONOFRE, UNIT 3 STEAM GENERATOR : 88 PAGE: 2 OF 6 OUTAGE DATA SET : CURRENT DATE: 02/02/94 SELECTION VARIABLES: Percent TIME: 09:12:48 EXAM EXTENT CURRENT ROW COL HEAT # LEG PROGRAM ACTUAL EXP CAL PROBE LOCATION VOLTS HIL DEG % CH
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81 69 C TEC-TEH TEC-TEH 00035 5800L VC3+ 0.73 0.90 0 22 P2 143 69 C TEC-TEH TEC-TEH 00035 580UL DBC+ 1.43 2.24 0 38 P2 104 70 C TEC-TEH TEC-TEH 00036 5800L VC3- 0.98 0.64 0 <20 P2 77 71 C TEC-TEH TEC-TEH 00036 5800L VH3+ 0.67 0.99 0 25 P2 44 72 C TEC-TEH TEC-TEH 00030 580UL VSM- 0.91 0.54 0 <20 P2 144 72 C TEC-TEH TEC-TEH 4 00036 580UL VH2- 1.06 0.46 0 <20 P2 37 73 C TEC-TEH TEC-TEH 00030 5800L VSM+ 0.88 1.21 0 28 P2 39 73 C TEC-TEH TEC-TEH 00030 5800L VSM+ 0.91 0.77 0 21 P2 81 73 C TEC-TEH TEC-TEH 00036 580UL VSM- 0.86 0.52 0 <20 P2 38 74 C TEC-TEH TEC-TEH 00030 580UL DBH- 1.71 0.49 0 <20 P2 138 74 C TEC-TEH TEC-TEH 4 00036 580UL VH1- 1.04 0.82 0 22 P2 39 75 C TEC-TEH TEC-TEH 00030 580UL DBH- 1.94 0.36 0 <20 P2 C TEC-TEH TEC-TEH 00030 5800L VSM+ 0.96 0.51 0 <20 P2 41 75 C TEC-TEH TEC-TEH 00030 580UL DBH- 1.71 0.38 0 <20 P2 C TEC-TEH TEC-TEH 00030 580UL VSM+ 1.01 0.45 0 <20 P2 C TEC-TEH TEC-TEH 00030 580VL DBC+ 1.55 1.19 0 28 P2 75 75 C TEC-TEH TEC-TEH 00037 580UL VSM- 1.03 0.49 0 20 P2 42 76 C TEC-TEH TEC-TEH 00030 580UL DBH- 1.61 0.29 0 <20 P2 142 76 C TEC-TEH TEC-TEH 4 00037 5800L VH1- 0.84 0.97 0 30 P2 146 76 C TEC-TEH TEC-TEH 4 00037 580UL DBH+ 1.23 0.48 0 20 P2 50 78 C TEC-TEH TEC-TEH 00030 580UL DBC- 1.46 0.74 0 20 P2 146 78 C TEC-TEH TEC-TEH 4 00037 580UL DBC+ 1.33 0.89 0 29 P2 47 79 C TEC-TEH TEC-TEH 00030 580UL VSM+ 0.86 0.72 0 <20 P2 145 79 C TEC-TEH TEC-TEH 4 00037 580UL DBC+ 1.48 1.02 0 31 P2 104 80 C TEC-TEH TEC-TEH 00038 5800L 07H+ 24.65 0.87 142 27 1 60 82 C TEC-TEH TEC-TEH 00077 580UL DBH- 2.16 0.42 0 <20 P2 146 82 H 09H-10H 09H-10H 00101 600RC 09H+ 2.39 4.08 12 SVI 4 H 09H-10H 09H-10H 00101 600RC 09H+ 3.67 3.54 7 SVI 4 H 09H-10H 09H-10H 00101 600RC 09H+ 5.64 4.27 7 SVI 4 H 09H-10H 09H-10H 00101 600RC 09H+ 8.09 3.99 7 SVI 4 H 09H-10H 09H-10H 00101 600RC 09H+ 9.52 3.58 3 SVI 4 H 09H-10H 09H-10H 00101 600RC 09H+ 11.51 3.88 10 SVI 4 H 09H-10H 09H-10H 00101 600RC 09H+ 28.29 4.37 9 SVI 4 C TEC-TEH TEC-TEH 00001 580UL DBC+ 1.55 0.88 0 24 P2 114 84 C TEC-TEH TEC-TEH 00038 5800L DBH+ 1.94 0.77 0 20 P2 51 85 C TEC-TEH TEC-TEH 00082 580UL DBC- 1.50 0.22 0 <20 P2 C TEC-TEH TEC-TEH 00082 580UL 03C+ 18.63 0.86 161 <20 1 143 85 C TSC-TSC TSC-TSC 00003 600RC TSC+ 1.92 70.28 43 SVI 4 C TSC-TSC TSC-TSC 8 00094 600MR TSC+ 1.88 116.0 217 SVI 4 l C TSC-TSC TSC-TSC 7 00092 600RP TSC+ 1.55 51.28 46 SVI 4 l C TEC-TEH TEC-TEH 00001 580UL TSC+ 1.42 23.32 74 82 1 !
145 85 C TSC-TSC TSC-TSC 8 00094 600MR TSC+ 0.09 7.32 337 SVI 4 C TSC-TSC TSC-TSC 00003 600RC TSC+ 0.08 0.82 133 SVI 4 C TSC-TSC TSC-TSC 7 00092 600RP TSC+ 0.08 1.42 131 SVI 4 144 86 C TSC-TSC TSC-TSC 8 00094 600MR TSC+ 2.78 20.68 94 SVI 4 CONAM RUCLEAR, INC.
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. CUF.JLATIVE REPORT 11/93, SOUTHERN CALIFORNIA EDISON, SAN ONOFRE, UNIT 3 l STEAM GENERATOR : 88 PAGE: 3 OF 6 OUTAGE DATA SET : CURRENT DATE: 02/02/94 SELECTION VARIABLES: Percent TIME: 09:12:48 EXAM EXTENT CURRENT ROW COL HEAT / LEG PROG RAM ACTUAL EXP CAL PROBE LOCATION VOLTS MIL DEG % CH i i
166 86 C TSC-TSC TSC-TSC 00003 600RC TSC+ 2.71 11.31 104 SVI 4 l C TSC-TSC TSC-TSC 7 00092 600RP TSC+ 2.30 7.06 94 SVI 4 C TEC-TEH TEC-TEH 00001 580UL TSC+ 2.12 3.36 129 41 1 C TSC-TSC TSC-TSC 8 00094 600MR TSC+ 1.33 4.93 118 SVI 4 C TSC-TSC TSC-TSC 00003 600RC TSC+ 1.25 2.59 144 SVI 4 C TSC-TSC TSC-TSC 7 00092 600RP TSC+ 1.24 2.05 111 SVI 4 l C TEC-TEH TEC-TEH 00001 580UL TSC+ 0.96 0.98 158 <20 1 C TSC-TSC TSC-TSC 7 00092 600RP TSC+ 0.16 3.91 76 SVI P 1 C TSC-TSC TSC-TSC 00003 600RC Tsc+ 0.12 19.26 106 SVI 4 C TSC-TSC TSC-TSC 8 00094 600MR TSC+ 0.12 35.70 121 SVI 4 a 166 86 C TSC-TSC TSC-TSC 3 00094 600MR TSC+ 1.95 2.13 123 SVI P 5 C TSC-TSC TSC-TSC 00003 600RC TSC+ 1.88 2.99 24 SVI P 1 C TSC-TSC TSC-TSC 7 00092 600RP TSC+ 1.88 1.83 92 SVI 4 47 87 C TEC-TEH TEC-TEH 00078 5800L VSH- 0.61 0.37 0 <20 P2 C TEC-TEH TEC-TEH 00078 580UL DBC+ 1.95 0.58 0 <20 P2 49 87 C TEC-TEH TEC-TEH 00078 580UL DBH- 1.73 0.40 0 <20 P2 165 87 C TSC-TSC TSC-TSC 8 00094 600MR TSC+ 2.88 13.85 88 SVI 4 C TSC-TSC TSC-TSC 00003 600RC TSC+ 2.60 6.98 96 SVI 4 C TSC-TSC TSC-TSC 7 00092 600RP TSC+ 2.48 5.52 93 SVI 4 C TEC-TEH TEC-TEH 00001 580UL TSC+ 2,12 2.72 126 44 1 C TSC-TSC TSC-TSC 8 00094 600MR TSC+ 0.94 2.93 111 SVI 4 C TSC-TSC TSC-TSC 00003 600RC TSC+ 0.88 3.73 20 SVI P 1 C TSC-TSC TSC-TSC 7 00092 600RP TSC+ 0.80 1.12 79 SVI 4 C TEC-TEH TEC-TEH 00001 580UL TSC+ 0.67 0.68 156 <20 1 C TSC-TSC TSC-TSC 00003 600RC TSC+ 0.28 14.42 128 SVI 4 C TSC-TSC TSC-TSC 8 00094 600MR TSC+ 0.26 22.81 129 SVI 4 C TSC-ISC TSC-TSC 7 00092 600RP TSC+ 0.25 4.31 89 SVI P 1 147 87 C TSC-TSC TSC-TSC 7 00092 600RP TSC+ 0.19 11.06 77 SVI P 1 50 88 C TEC-TEH TEC-TEH 00078 5800L DBC- 2.25 0.37 0 <20 P2 138 88 C TEC-TEH TEC-TEH 4 00057 580UL VH1- 1.19 0.54 0 <20 P2 lee 88 C TSC-TSC TSC-TSC 8 00094 600MR TSC+ 2.07 8.04 79 SVI 4 C TSC-TSC TSC-TSC 00003 600RC TSC+ 1.87 6.51 89 SVI 4 C TSC-TSC TSC-TSC 7 00092 600RP TSC+ 1.87 3.17 82 SVI 4 C TEC-TEH TEC-TEH 00001 580UL TSC+ 1.51 2.00 130 40 1 0 *SC-TSC TSC-TSC 7 00092 600RP TSC+ 0.13 2.41 121 SVI 4 C TSC-TSC TSC-TSC 8 00094 600MR TSC+ 0.12 4.76 145 SVI 4 C TSC-TSC TSC-TSC 00003 600RC TSC+ 0.04 2.65 116 SVI 4 146 88 C TEC-TEH TEC-TEH 00001 580UL TSC+ 1,42 0.35 158 <20 1 C TSC-TSC TSC-TSC 8 00094 600MR TSC+ 0.47 2.52 134 SVI 4 C TSC-TSC TSC-TSC 00003 600RC TSC+ 0.45 1.57 30 SVI 4 C TSC-TSC TSC-TSC 7 00092 600RP TSC+ 0.45 1.61 35 SVI 4 C TSC-TSC TSC-TSC 8 00094 600MR TSC+ 0.24 6.93 154 SVI 4 ;
C TSC-TSC TSC-TSC 00003 600RC TSC+ 0.23 3.12 128 SVI 4 l C TSC-TSC TSC-TSC 7 00092 600RP TSC+ 0.20 1.65 111 SVI 4 77 89 C TEC-TEH TEC-TEH 00057 580UL DBH+ 1.82 2.58 0 40 P2 CONAM NUCLEAR, INC.
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- CUMULATIVE REPORT 11/93, SOUTHERN CALIFORNIA EDISON, SAN ONOFRE, UNIT 3
( STEAM GENERATOR : 88 PAGE: 4 OF 6 l OUTAGE DATA SET : CURRENT DATE: 02/02/94 SELECTION VARIABLES: Percent TIME: 09:12:48 EXAM EXTENT CURRENT ROW COL HEAT # LEG PROGRAM ACTUAL EXP CAL PROBE LOCATION VOLTS MIL DEG % CH 165 89 C TSC-TSC TSC-TSC 8 00094 600MR TSC+ 1.64 1.44 97 SVI P 1 C TSC-TSC TSC-TSC 00003 600RC TSC+ 1.59 1.84 89 SVI 4 C TSC-TSC TSC-TSC 7 00092 600RP TSC+ 1.41 1.59 97 SVI P3 C TEC-TEH TEC-TEH 00057 580UL TSC+ 1.24 1.62 153 <20 1 C TEC-TEH TEC-TEH 00002 580UL TSC+ 1.21 1.75 166 <20 1 ,
C TSC-TSC TSC-TSC 8 00094 600MR TSC+ 0.47 0.78 132 SVI 3 C TSC-TSC TSC-TSC 7 00092 600RP TSC+ 0.31 1.16 75 SVI P3 1 147 89 C TEC-TEH TEC-TEH 00002 580UL DBC- 1.38 0.96 0 26 P2 C TEC-TEH TEC-TEH 00057 580UL DBC- 1.22 1.10 0 26 P2 l 138 90 C TEC-TEH TEC-TEH 00057 5800L VH1- 0.67 1.28 0 28 P2 C TEC-TEH TEC-TEH 00057 5800L 01C+ 12.71 2.24 142 22 1 146 92 C TEC-TEH TEC-TEH 4 00057 580UL 10C+ 0.86 0.23 0 <20 P2 51 93 C TEC-TEH TEC-TEH 00077 580UL DBH- 1.67 0.45 0 <20 P2 l 75 93 C TEC-TEH TEC-TEH 00057 580UL VSM+ 1.05 0.44 0 <20 P2 l
77 93 C TEC-TEH TEC-TEH 00057 5800L VSM+ 0.95 0.94 0 23 P2 79 93 C TEC-TEH TEC-TEH 00057 580UL VH3+ 0.86 0.56 0 <20 P2 C TEC-TEH TEC-TEH 00057 580UL VSM+ 0.95 0.98 0 24 P2 C TEC-TEH TEC-TEH 00057 580UL VC3+ 0.81 0.81 0 21 P2 136 94 C TEC-TEH TEC-TEH 4 00058 580UL VH1- 0.91 1.17 0 25 P2 l 144 96 C TEC-TEH TEC-TEH 4 00058 580UL VH1+ 0.81 0.62 0 <20 P2 l 82 98 C TEC-TEH TEC-TEH 00058 580UL VH3- 0.77 0.70 0 <20 P2 107 99 C TEC-TEH TEC-TEH 00059 580UL VH2- 0.60 0.81 0 21 P2 l C TEC-TEH TEC-TEH 00059 5800L VC3+ 0.72 1.49 0 30 P2
! 43 101 C TEC-TEH TEC-TEH 00050 $80UL VSM- 0.76 0.51 0 <20 P2 79 101 C TEC-TEH TEC-TEH 00059 5800L VH3- 0.82 0.81 0 20 P2 C TEC-TEH TEC-TEH 00059 580UL VH3+ 0.79 1.00 0 23 P2 '
135 103 C TEC-TEH TEC-TEH 4 00059 5800L VH1+ 0.86 0.49 0 <20 P2 C TEC-TEH TEC-TEH 4 00059 580UL VH2- 0.77 0.47 0 <20 P2 112 104 C TEC-TEH TEC-TEH 00060 5800L VH2- 0.99 1.46 0 31 P2 C TEC-TEH TEC-TEH 00060 580UL VH2- 0.20 1.47 0 32 P2 C TEC-TEH TEC-TEH 00060 580UL VH2+ 1.02 1.50 0 32 P2 C TEC-TEH TEC-TEH 00060 580UL VSM+ 0.85 0.81 0 22 P2 134 104 C TEC-TEH TEC-TEH 4 00067 580UL VH1- 0.90 0.67 0 <20 P2 C TEC-TEH TEC-TEH 4 00060 580UL VH1- 0.71 0.37 0 <20 P2 142 104 C TEC-TEH TEC-TEH 4 00067 580UL DBH+ 1.99 0.52 0 <20 P2 77 105 C TEC-TEH TEC-TEH 00067 580UL VC3+ 26.58 0.99 157 <20 1 79 105 C TEC-TEH TEC-TEH 00061 5800L VH3+ 0.57 1.73 0 34 P2 105 105 C TEC-TEH TEC-TEH 00061 5800L VH2- 0.73 0.51 0 <20 P2 38 106 C TEC-TEH TEC-TEH 00051 5800L VSM+ 0.85 0.35 0 <20 P2 142 106 H TSH-TSH TSH-TSH 00061 600RC TSH+ 0.21 4.31 137 SVI 4 144 106 C TEC-TEH TEC-TEH 4 00067 580UL DBC+ 2.17 1.05 0 24 P2 111 107 C TEC-TEH TEC-TEH 00076 580UL VH2- 0.78 0.79 0 <20 P2 143 107 H TSH-TSH TSH-TSH 00062 600RC TSH+ 0.22 3.10 122 SVI 4 136 108 C TEC-TEH TEC-TEH 4 00062 580UL VH1- 0.91 0.27 0 <20 P2 75 109 C TEC-TEH TEC-TEH 00062 580UL VSM- 0.97 0.72 0 20 P2 CONAM NUCLEAR, INC.
l' CUHULATIVE REPORT 11/93, SOUTHERN CALIFORNIA EDISON, SAN ONOFRE, UNIT 3 STEAH GENERATOR : 88 PAGE: 5 OF 6 OUTAGE DATA SET : CURRENT DATE: 02/02/94 SELECTION VARIABLES: Percent TIME: 09:12:48 EXAM EXTENT CURRENT ROW COL HEAT # LEG PROGRAM ACTUAL EXP CAL PROBE LOCATION VOLTS MIL DEG % CH 75 109 C TEC-TEH TEC-TEH 00062 580UL VSH+ 0.81 0.52 0 <20 P2 95 109 C TEC-TEH TEC-TEH 00062 580UL VH2+ 0.76 0.69 0 <20 P2 109 109 C TEC-TEH TEC-TEH 00062 580UL VH2- 0.80 0.39 0 <20 P2 C TEC-TEH TEC-TEH 00062 580UL VC2- 0.74 0.42 0 <20 P2 143 109 C TEC-TEH TEC-TEH 4 00062 5800L VH2- 0.89 0.63 0 <20 P2 116 110 C TEC-TEH TEC-TEH 00062 580UL VC3+ 0.65 0.41 0 <20 P2 81 113 C TEC-TEH TEC-TEH 00067 580UL VSH- 1.06 1.14 0 26 P2 113 119 C TEC-TEH TEC-TEH 00064 580UL VH2+ 0.79 0.96 0 21 P2 136 120 C TEC-TEH TEC-TEH 00064 580UL DBH+ 2.23 0.62 0 <20 P2 C TEC-TEH TEC-TEH 00064 580UL VH3- 0.87 1.76 0 31 P2 133 121 C TEC-01C TEC-Olc 00072 600RC TSC+ 12.58 11.55 30 SVI 4 C TEC-TEH TEC-TEH 4 00064 580UL TSc+ 11.75 2.51 87 74 1 75 123 C TEC-TEH TEC-TEH 00065 580UL DBH+ 22.19 0.82 161 <20 1 78 124 C TEC-TEH TEC-TEH 00065 580UL VH3+ 1.23 0.43 0 <20 P2 C TEC-TEH TEC-TEH 00065 580UL VC3+ 0.87 0.44 0 <20 P2 81 125 C TEC-TEH TEC-TEH 00065 580UL VH3+ 0.90 0.85 0 <20 P2 C TEC-TEH TEC-TEH 00065 580UL VC3+ 0.96 0.65 0 <20 P2 80 126 C TEC-TEH TEC-TEH 00065 580UL VH3+ 0.63 1.30 0 26 P2 C TEC-TEH TEC-TEH 00065 580UL VC3+ 0.69 0.60 0 <20 P2 76 128 C TEC-TEH TEC-TEH 00065 580UL VC3- 0.90 1.38 0 27 P2 82 128 C TEC-TEH TEC-TEH 00065 580UL VH3- 0.87 0.80 0 <20 P2 l 3 129 C TEC-07H TEC-07H 00068 560SF 03C+ 21.80 1.11 148 22 1 l 41 129 C TEC-TEH TEC-TEH 00055 580UL DBH+ 1.36 0.57 0 <20 P2 83 129 C TEC-TEH TEC-TEH 00065 580UL VH2+ 0.62 0.73 0 <20 P2 127 129 C TEC-Olc TEC-Olc 00072 600RC TSC+ 7.96 1.59 97 SVI 4 C TEC-TEH TEC-TEH 00065 580UL Tsc+ 7.33 2.10 148 23 1 1 108 130 C TEC-TEH TEC-TEH 00066 580UL VH3- 0.89 0.86 0 <20 P2 C TEC-TEH TEC-TEH 00066 580UL VC3- 0.72 0.76 0 <20 P2 112 132 C TEC-TEH TEC-TEH 00066 580UL VC3+ 0.58 0.55 0 <20 P2 1 106 134 C TEC-TEH TEC-TEH 00066 580UL VH2- 0.99 0.46 0 <20 P2 72 140 C TEC-TEH TEC-TEH 00045 580UL 06H+ 15.56 0.66 155 <20 1 80 140 C TEC-TEH TEC-TSH 00045 5800L VC3- 1.09 0.47 0 <20 P2 C TEC-TEH TEC-TEH 00066 580UL VC3- 1.06 0.58 0 <20 P2 C TEC-TEH TEC-TSH 00045 580UL VC3+ 0.59 0.36 0 <20 P2 C TEC-TEH TEC-TEH 00066 580UL VC3+ 0.70 0.49 0 <20 P2 63 143 C 02C-03C 02C-03C 00072 600RC 02C+ 23.51 3.20 124 SVI 4 106 144 C TEC-TEH TEC-TEH 00046 580UL VH2- 1.01 0.90 0 26 P2 l C TEC-TEH TEC-TEH 00046 580UL VH3+ 0.84 0.58 0 <20 P2 94 146 C TEC-TEH TEC-TEH 4 00047 5800L VH3- 0.84 0.45 0 <20 P2 72 148 C TEC-TEH TEC-TEH 00047 580UL VC3+ 0.93 0.30 0 <20 P2 89 151 C TEC-TEH TEC-TEH 4 00047 5800L VC3- 0.79 0.55 0 <20 P2 1 77 157 C TEC-TEH TEC-TEH 4 00048 5800L 08C- 1.29 0.35 0 <20 P2 l 74 160 C TEC-TEH TEC-TEH 00044 5800L 08C- 0.37 0.87 0 25 P2 l 79 161 C TEC-TEH TEC-TEH 4 00044 580UL DBH+ 1.85 0.29 0 <20 P2 l 10 166 C TEC-TEH TEC-TEH 4 00049 580UL 01H+ 0.23 2.90 0 43 P2 CONAM NUCLEAR, INC.
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CUMULATIVE REPORT 11/93, SOUTHERN CALIFORNIA EDISON, SAN ONOFRE, UNIT 3 STEAM GENERATOR : 88 PAGE: 6 OF 6 OUTAGE DATA SET . CURRENT DATE: 02/02/94 SELECTION VARIABLES: Percent TIME: 09:12:48 EXAM EXTENT CURRENT ROW COL HEAT # LEG PROGRAM ACTUAL EXP CAL PROBE LOCATION VOLTS MIL DEG % CH 17 169 C TEC-TEH TEC-TEH 00083 580UL DBH+ 2.36 4.45 9 23 ""5 C TEC-TEH TEC-TEH 00081 580UL DBH4 2.89 3.57 10 25 1 NUMBER OF TUBES SELECTED FROM CURRENT OUTAGE: 133 NUMBER OF DATA RECORDS SELECTED FROM CURRENT OUTAGE: 227 NO TREND ANALYSIS REQUESTED DATA SELECTION CRITERIA:
Percent: MAI, MCI,SAI, SCI,SVI, O to 100%
REPORT OPTIONS:
Only examination results matching criteria are included MAP OPTIONS:
Plot Variable = Indication Codes Plot data from current examination only l
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CONAM NUCLEAR, INC.
Page 1 of 3 Enclosure 4 LIST OF TUBES PLUGGED San Onofre Unit 3 Steam Generator E-088 I
l Row Column Peason 22 2 Preventive Maintenance (Association with Foreign Material)
! 21 3 Preventive Maintenance
- (Association with Foreign Material) 23 3 Preventive Maintenance (Association with Foreign Material) i I 20 4 Preventive Maintenance (Association with Foreign Material)
- 22 4 Preventive Maintenance (Association with Foreign Material) 21 5 Preventive Maintenance (Association with Foreign Material) 106 28 54% Indication at VC3 - 0.82 43 37 Preventive Maintenance 112 40 Preventive Maintenance 112 48 Preventive Maintenance 134 52 Preventive Maintenance 107 59 51% Indication at VC2 + 0.94 139 61 Preventive Maintenance ;
142 68 Preventive Maintenance l
143 69 Preventive Maintenance j 1
41 75 Preventive Maintenance 142 76 Preventive Maintenance 50 78 Preventive Maintenance
1 Page 2 of 3 -
Enclosure 4 LIST OF TUBES PLUGGED San Onofre Unit 3 Steam Generator E-088 Row Column Reason 145 79 Preventive Maintenance 146 82 Preventive Maintenance 143 85 82% Indication at TSC + 1.42 (This indication was actually 100%
based on visual observation of leakage, and had association with foreign material.)
145 85 Preventive Maintenance (Association with Foreign Material) 144 86 Preventive Maintenance (Association with Foreign Material) 146 86 Preventive Maintenance (Association with Foreign Material) 145 87 44% Indication at TSC + 2.12 (Association with Foreign Material) 147 87 Preventive Maintenance (Association with Foreign Material) 144 88 Preventive Maintenance (Association with Foreign Material) s 146 88 Preventive Maintenance (Association with Foreign Material) 77 89 Preventive Maintenance 145 89 Preventive Maintenance (Association with Foreign Material) 107 99 Preventive Maintenance 112 104 Preventive Maintenance 79 105 Preventive Maintenance
Page 3 of 3 Enclosure 4 LIST OF TUBES PLUGGED San Onofre Unit 3 Steam Generator E-088 Row Column Reason 141 105 Preventive Maintenance (Association with Foreign Material) 142 106 Preventive Maintenance (Association with Foreign Material) 144 106 Preventive Maintenance (Association with Foreign Material) 143 107 Preventive Maintenance (Association with Foreign Material) 136 120 Preventive Maintenance 133 121 74% Indication at TSC + 11.75 127 129 Preventive Maintenance 63 143 Preventive Maintenance 10 166 Preventive Maintenance l
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Enclosure 5 CUMULATIVE REPORT ,
11/93, SOUTHERN CALIFORNIA EDISON, SAN ONOFRE, UNIT 3 I STEAM GENERATOR : 89 PAGE: 1 OF 2 OUTAGE DATA SET : CURRENT DATE: 02/02/94 SELECTION VARIABLES: Percent TIME: C9:47:46 EXAM EXTENT CURRENT ROW COL HEAT # LEG PROGRAM ACTUAL EXP CAL PROBE LOCATION VOLTS MIL DEG % CH 30 4 C TEC-TEH TEC-TEH 00006 580UL 03C+ 34.28 0.91 146 25 1 42 6 C : TEC-TEH TEC-TEH 4 00006 500UL VSM+ 0.91 0.60 0 <20 P2 61 9 C :
TEC-TEH TEC-TEH 00007 580UL VSM+ 1.46 0.51 154 <20 1 50 10 C TEC-TEH TEC-TEH 00007 580UL VSM- 0.64 0.73 0 24 P2 51 11 C TEC-TEH TEC-TEH 4'00007 580UL 03C- 1.14 0.26 0 <20 P2 115 37 H TSH-TSH TSH-TSH 00040 600RC TSH+ 0.14 6.73 235 SVI P1 101 43 C TEC-TEH TEC-TEH 00018 580UL VSM+ 0.99 0.22 0 <20 P2 113 53 C TEC-TEH TEC-TEH 00026 580UL 06C+ 25.12 0.56 160 <20 1 77 59 C TEC-TEH TEC-TEH 00027 580UL VSM- 0.80 0.68 0 20 P2 lCl TEC-TEH TEC-TEH 00027/580UL VC3+ 0.74 0.53 Cl <20 P2 141 63 lC TEC-TEl' . TEC-TEH ; 00027- 580UL DBH+ 2.22 0.40: 0 <20 P 2; 50 64 C 'TEC-08H TEC-TEH 00022i 580UL VSM- 0.15 0.89 0 26 P2 129 65 C TEC-TEH TEC-TEH 00028 580UL VH2- 1.50 0.41 0 <20 P2 C TEC-TEH TEC-TEH 00028 580ULl VC3+ 8.07 1.61 157 l<20 1 100 78 . l C. TEC-TEH' TEC-TEHj l00031 580UL 08H- 0.54 l 0.76l 0 25 P 2 l 108 80l lC TEC-TEH :TEC-TEH l00031 580UL 07H+ 23.34 0.75l 149 22 1 56 86l lC TEC-TEH TEC-TEH l00072 580UL DBH- 2.17 0.23l 0 <20 P2 138 86l l C lTEC-TEH TEC-TEHl4 l00032l580UL VH1- 0.92 l 0.30l 0 <20 P2 4
l l l C lTEC-TEH' TEC-TEHl4 l00032l580ULlVH2- 1.08 0.32l 0 <20' P2 l l C lTEC-TEH TEC-TEHl4 j00032l580UL VH2+ 0.70 0.28l 0 <20 P2 l132 94; C lTEC-TEH'TEC-TEHl l00035l580UL VH2- 0.89 0.57l 0 27 P2
, l 50l 98, C lTEC-TEHlTEC-TEHl l 00050l580UL lDBH- 1.71 0.49] O <20 P2 l142l 98 C lTEC-TEH TEC-TEHl4 i OOO36l580ULl08C+ 0.96 l 0.80l 0 32lP 2 ,
38l102 C TEC-TEH TEC-TEHl 00049 f580UL DBC- 1.22 0.34 0 <20 P2 136 l102 C TEC-TEH TEC-TEHl4 00038 580UL 08C+ 25.95 0.92 159 <20 1 55 103 C TEC-TEH TEC-TEHl 00048' 580UL VC3+ 1,21 0.45 0 <20 P2 34 104 C TEC-TEH TSC-TEHl 00048 580UL DBC+ 1.71 0.33 " 0 <20l P2 C TEC-TEH TEC-TEH 00059 580UL DBC+ 1.74 0.34; O <20 P2 46 104 C TEC-TEH TEC-TEH 00048 580UL VSM- 1.02 0.26 0 <20 P2 74 104 C TEC-TEH TEC-TEH 00038 580UL DBC- 0.51 0.41 0 <20 P2 35 105 C TEC-TEH TEC-TEH 00048 580UL VSM+ 13.10 0.86 159 <20 1 37 105 C TEC-TEHlTEC-TEH 00048 580UL VSM+ 0.71 0.49 0 <20 P2 41 105 C TEC-TEHlTEC-TEHl 00048 580UL TSH+ 0.80 0.52 146 25 1 136 106l C TSC-01ClTSC-01Cl 00074 600RClTSC+ 23.89 3.55l 25 SVIl 4 lC TEC-TEH TEC-TEHl4 136 114 00040 580ULlVC1+ 2.14 0.92 148 <20 1 lC lTEC-TEH TEC-TEHl4 l00040 580ULlDBC+ 1.46 0.54 0 <20 P2 140 114 C lTEC-TEH TEC-TEHl4 l00040 580ULlDBH+ 2,11 0.91 0 25 P2 83 115; C lTEC-TEH lTEC-TEH l00040:580ULlVSM+ 1.34 0.57 0 23 P2 l 133 117 C TEC-TEHlTEC-TEH 4 l00040l580ULl03C+ 10.81 0.50 154 <20 1 s
138 118 C TEC-TEH TEC-TEH 4 00040l 580UL VH1- 1.14 1.25 0 35 P2 50 128 C TEC-TEH TEC-TEH 00045 580UL 03C+ 0.78 0.60 0 <20 P2 77 131 C lTEC-TEH TEC-TEHl 00043 580UL VH3- 0.66 0.43 0 <20 P2 C lTEC-TEH TEC-TEH 00043 580UL VC3+ 0.72 1.07 0 30 P2 46 138 C TEC-TEH TEC-TEH 00051 580UL 04C- 0.30 0.26 0 <20 P2 i 106 138 C TEC-TEH TEC-TEH 00051 580UL VH2- 0.90 0.44 0 <20 P2 I I I CONAM NUCLEAR, INC.
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.- . _ - _ = - . . -. . .,
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CUMULATIVE REPORT 11/93, SOUTHERN CALIFORNIA EDISON, SAN ONOFRE, UNIT 3 STEAM GENERATOR : 89 PAGE: 2 OF 2 OUTAGE DATA SET : CURRENT DATE: 02/02/94 SELECTION VARIABLES: Percent TIME: 09:47:46 EXAM EXTENT CURRENT ROW COL HEAT # LEG PROGRAM ACTUAL EXP CAL PROBE LOCATION VOLTSMILlDEG % CH 119 139 C TEC-TEH TEC-TEH 00051 580UL 10C- 1.21 0.53 0 <20 P2 47 145 C TEC-TEH TEC-TEH 00054 580UL VSM+ 1.03 0.41 0 <20 P2 67 145 C TEC-TEH TEC-TEH 00054 580UL VC3+ 1.46 0.60 0 23 P2 i 76 146 C TEC-TEH TEC-TEH 00054 580UL VH3+ 0.86 0.43 0 <20 P2 I 104 146 C TEC-TEH TEC-TEH 00054 580UL VH2- 0.60 1.11 0 31 P2 C TEC 'lEH TEC-TEH 00054 580UL VH3- 0.87 0.57 0 21 P2 l 73 147 C TEC-TEH TEC-TEH 00054 580UL VH3, 0.86 0.40 0 21 P2 C TEC-TEH TEC-TEH 00054 580UL VSM- 0.86 0.38 0 <20 P2 l 79 153 C TEC-TEH TEC-TEH 00055 580UL VH3- 0.99 0.44 0 <20 P2 l C TEC-TEH TEC-TEH' 00055 580UL' VC3+ 0.69 0.76 0 22 P2 81 153 C TEC-TEH TEC-TEH 00055 580UL VC3- 1.07 0.23 0 <20: P2 86: 154 C 07C-07C 07C-08C 00064 600RC 07C+ 0.31 4.95 85 SVI 4 77l155 C TEC-TEH TEC-TEH 00056 580UL VH3+ 0.88 0.40 0 <20 P2 I I ,
1 NUMBER OF TUBES SELECTED FROM CURRENT OUTAGE: 48 NUMBER OF DATA RECORDS SELECTED FROM CURRENT OUTAGE: 58 f NO TREND ANALYSIS REQUESTED DATA SELECTION CRITERIA:
l Percent: MAI, MCI,SAI, SCI,SVI, O to 100%
1 REPORT OPTIONS:
Only examination results matching criteria are included MAP OPTIONS: $
Plot Variable - Percent ThruWall Plot data from current examination only l
l CONAM NUCLEAR, INC.
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Page 1 of 1 Enclosure 6 LIST OF TUBES PLUGGED 3 San Onofre Unit 3 Steam Generator E-089 Row Column Reason
. 115 37 Preventive Maintenance (Association with Foreign Material) 117 37 Preventive Maintenance (Association with Foreign Material) 4
, 116 38 Preventive Maintenance l (Association with Foreign Material) t 117 39 Preventive Maintenance (Association with Foreign Material) 43 69 Preventive Maintenance 45 69 Preventive Maintenance j 46 70 Preventive Maintenance j 43 71 Preventive Maintenance i
! 142 98 Preventive Maintenance
, 42 106 Preventive Maintenance 136 106 Preventive Maintenance 138 118 Preventive Maintenance 91 123 Preventive Maintenance 90 124 Preventive Maintenance '
1 77 131 Preventive Maintenance 104 146 Preventive Maintenance 86 154 Preventive Maintenance ,
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