ML20211N671
| ML20211N671 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 10/09/1997 |
| From: | Affolter R UNION ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 96-02, 96-2, ULNRC-3653, NUDOCS 9710170069 | |
| Download: ML20211N671 (19) | |
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- Ca!!away Plant Post Office Bcx 6?0 fv!!an. Missout: 6525I Umou
'4 October 9,1997 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Stop PI-137 Washington, DC 20555-0001 ULNRC-3653 Gentlemen:
DOCKET NUMilER 50 483 CALLAWAY PLANT UNIT I FACILITY OPERATING LICENSE NPF-30 SPECIAL REPORT 96-02 (SOS 96-1706)
RESULTS OF Tile NINTIl STEAM GENERATOR TUHE IN-SERVICE INSPECTION The enclosed Special Report is subtr.itted pursuant to the requirements of Callaway Technical Specification 4.4.5.5 b concerning the Inservice Inspection of Callaway's Steam Generators (S/G) perfomied in November 1996, durirg Callaway Plant's eighth refueling outage. This report documents the final Steam Generator inspection results.
m R. D. A olter Manager, Callaway Plant p/?il Y
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< bs t Enclosure 1C0NO 9710170069 971009 ?
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. ULNRC-3653
. Page 2 of 20 '
cc: hir, Ellis W. Merschoff
' Regional Administrator U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400
- Arlington, TX 76011 8064-Senior Resident inspector Callaway Resident Office U.S. Nuclear Regulatory Commission 8201 NRC Road
- Steedman, h10 65077
. hir. Barry C. Westreich (2 copies)
. Acting Licensing Project hianager, Callaway Plant Office of Nuclear Reactor Regulation -
_. U. S. Nuclear Regulatory Commission hiail Stop 13E16 Washington, DC 20555-2738 hianager, Electric Department
- Missouri Public Senice Commission PO Box 360 Jefferson City, h10 65102 hir. Thomas A. Baxter Shaw, Pittman, Potts, & Trowbridge 2300 N. Street N.W.
Washington,DC 20037 L
a
f ULNRC-3653 Page 4 of 20 SPECI AL llEPORT 96-02 RESULTS OF NINTil STEA51 GENERATOlt TUllF IN-SERVICE INSPECTION INSPECTION REOlJIREMENTS:
This report is submitted in accordance with Technical Specification (T/S) 4.4.5.5.b, which states:
"The complete results of the steam generator tube inservice inspection shall be submitted to the Commission in a Special Report pursuant to Specification 6.9.2 within 12 months following the completion of the inspection. This Special Report shall include:
- 1) Number and extent of tubes and sleeves inspected,
- 2) Location and percent of wall-thickness penetration for each indication of an imperfection, and
- 3) Identification of tubes plugged or repaired."
INSPECTION REPORT:
In November 1996, with the plant in Mode 6 for the eighth refueling ou. age, the ninth Steam Generator (S/G) Eddy Current inservice Inspection was performed by Westinghouse Electric Corporation. The final results of this inspection are summarized below and are numbered to correspond with the information requested by T/S 4.4.5.5.b:
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~ ULNPC-3653
+
Page5'of20 (1)
Number / Extent ofInspected Tubes and Sleeves
+
1?
Table 1 below shows the scope of the eddy current inspection performed -
during Refuel 8 at Callaway Plant. As shown in this table a 100% bobbin coil examination of Steam Generators A~ and D and 100% top of tubesheet j
(hot leg) RPC examination ~of all four steam generators was performed during
[
Refuel 8. Additionally, the Row I U bends in Steam Generator C were inspected using a RPC probe.
- Table i Eddy Current Insnedion Pronram Summan-Work Scope S/G A S/G H S/G C S/G D Bobbin coil, full length 5579 0
0 5574
+ Point RPC, top of tubesheet, 5579 5597 5573 5574 hot leg - +2"/-3"
+ Point, RPC, U-bend 0
0 113*
0
- 121 + Point U-bend locations were to have been inspected, but 8 exhibited restrictions and were inspected with a bobbin probe.
I a
ULNRC 3653 Page 6 of 20 (2) Location / Percent of Wall / Thickness Penetration for liach Indication of Imperfection See Tables 2,3,4, and 5 on the following pages for steam generator tube imperfections found during the eddy current inspection during Refuel 8. The imperfections listed in these tables are those showing 20% or greater tube wall thinning. The key below provides a description of the abbreviations used in these tables:
TAllLES 2,3,4. AND 5 KEY AV 1,2,3,4,5,6 - Anti-Vibration Bars 0211,0711,07C, etc. - Tube Support Plate Numbers / Cold Leg (C),110t Leg (11)
TSil - Tubesheet 110tLeg sal - Single Axial Ir.dication MAI - Multiple Axial ladication SCI - Single Circumferential Indication MCI - Multiple Circumferential Indication SVI - Single Volumetric Indication MVI - Multiple Volumetric Indication
.. ~. -. - -
.g ULNRC-3653-Page 7 of 20 TABLE 2 TUSE IMPERFECTIONS - STEAM GENERATOR 'A' INDICATION %
INCH (+) FROM ROW' COLUMN WALL THINNING LOCATION LOCATION 4
i 29 30 MVI TSH
-0.17 25 42 SCI TSH
-0.07 21 43 MCI TSH 1 30 21 43~
MCI TSH
-2.54 19 47 mal TSH 0.06 56 47 SV1 TSH 1.52
-18 48 SAI TSH 0.09 21 48 SCI TSH 2.00
- 22 '
51 sci TSH 0.08 18 52 SCI TSH 0.11 46 53 -
SCI TSH
-0.33 14-54 SCl TSH
-0.08 21 54 SCI TSH
-0.35 57 55 SCI TSH 0.06 17 57 MCI TSH
-0.03
-17
- 57 SCI TSH
-0.66 22 57 SCI TSH
-0.25 19 59 SAI TSH 0.00 16 60 sal TSH 0.21 26 61 SCI TSH 0.20 13 62 SAI TSH 0,13-14 62 SCI TSH
-0.20 19-63 MCI TSH
-2.50 35 67 SCI TSH 0.10 19 70:
SVI TSH
-2.96 25 71 SAI TSH 0.11 15:
72 SCI TSH 2.12 19.
72 MCI TSH 0.12 19 72 MCl.
_TSH -
-2.68 16 75
- MCl-
.TSH 0.08 12 76 sal TSH 0.01 18 76 mal TSH 0.03 57 76 SCI TSH
-0,03 20-77 MCl TSH 0.10
.15 78 SCI TSH
-0.01 54
-78 SVI TSH 0.07-36' 79 SCI TSH 0.09 27 80 SAI TSH
-0.01
ULNRC-3653 4
Page 8 of 20 TABLE 2 IQSg IMPERFECTIONS STEAM GENERATOP 'A' INDICATION % -
INCH (+) FROM ROW COLUMN WALL THINNING LOCATi,pA -
LOCATION j
22 83 SCI TSH 3.75 23 82 MAI TSH 0.07 20 83 SAI
-TSH 0.16 2
87 SVI TSH 3.47 38 87 MCI TSH
-1.86 -
41 87-SCI TSH 0.07 31 90-SCI TSH
-0.12 31 91 SCI TSH
-0.01 31 93 MCI TSH
-2.46 12 94 SAI TSH 0.05 31 95 SCI TSH 0.09 -
l 27 99 MCI TSH 0.12 8
115 SCI
-TSH
-0.06 31 11 24 AV5 0.00 32 11 22 AV2
-0.03 32 11 26 AV5 0.21 33 11 38 AV2 0.08 32 12 28 AV3 0.00 36 13 28 AV4 0.00 h
35 17 23 AV4
-0.06 39 18 28 AV3 0.00 39 18-22 AV4 0.00 1
35 20 24-AV3 0.03 32 -
22 25 AV2
-0.09 43 27 20 AV2 0.12 46 29 27 AV4
-0.24 39 34 22-AV2 0.00 39-34 -
27 AV3 0.00 39 34
-33 AV4 0.00 -
4 53-34 25
.AV5 0.00 l
53 34 34 AV6 0.00 39-37 32
-AV1 0.00
-39 37-20 AV3 0.00 39.
37 20 AV4 0,00
- 39
-37 21 AV5 0.00
'47 38-29 AV2 0.00 47 38 24 AV3 0.00 47 38 28 AV5 0.00 4
l r
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, +-
+
o ULNRC 3653 Page 9 0f 20-TABLE 2 TUBE IMPERFECTIONS STEAM GENERATOR 'A' INDICATION % _
INCH (+) FROM BOW COLUMN WALL THINNING - - LOCATIOS LOCATION 42 40 20 AV3 0.00 42 40 26 AV4-
-0.03 i
47 40 21 AV3 0.00 39 41 31 AV4 0,15
-42 46 32 AV3 0.00 35 47 21 AV2
-0.42 35 47 28-AV4 0.00 35 47 20 AV5 0.00 26-48 20 AV5 0.00 32 48 20 AV3 0.00 46 48 34 AV2 0.00 46 48 25 AV3-
-0.06 46 48 30 AV4 0.00 47
.55 21 AV1 0.00 i
47 55 22 AV2
-0,12 -
47 55 20 AV3 0.00
'47.
55 29 AV4
-0.18 47 55 20 AV5 0.00
-47 57 30 AV4 0.31 54 57 30 01H 20.44 55 58 27 04H-18.3 t
47 59 29 AV3
-0.14 47 59 27 AVS 0.09
-41 61 22
-AV3 0.00 41 61 28 AV4 0.00
'53 64 30 AV6 0.00 46 65-26 AV4 0.00 46 65 22 AV5 0.00-46 67 20 AV1 0.00 46 67 33-AV4 0.00 46-71 20 AV4 0.00 40 76 20.
AV3 0.00 32-78 21-AV6 -
0.00 50 '
79 29 AV3 0.26 50 79 24 AV4 0.20 42-82 21 AV3 0.00 42 82 32 AV4 0.00 46 83 29 AV2
-0.28 l
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+ -
ULNRC-3653
. Page 10 of 20 TABLE 2, TUBE IMPERFECTIONS - STEAM GENERATOR 'A' -
INDICATION %
INCH (+) FROM ROW-COLUMN WALL THINNING LOCATION LOCATION 46 83 29 AV3
-0.37 46 83 30 AVS
-0.08 39.
84 22 AV2 0.00 39 84 23 AV3 0.00 1
39 84 22 AV4 0.00 39-84 22 AV5 0.00 -
39-84 '
23 AV6 0.00 41-84 22 TSH 8.84 39 66 23 AV1 0.00-41 86 27 AV4 0.00 39-92 25 AV4 0.00 42 94 24 AV3 0.00-42 94 29 AV5 0.00 '
42 97 22 AV5 0.00 39 100 29 AV3
-0.14 39 100-26 AV5
- -0.11 42 103 22 AV5 0.00 33 111 25 AV3-0.00 -
33 111 28
-AV5 0.00 32'-
112 30 AV2 0.00 29 114
-21 AV6 0.00
,4 r,,-
.,s
t ULNRC-3653 Page 11 of 20 TABLE 3 TUGE IMPERFECTIONS STEAM GENERATOR 'B' INDICATION %
INCH (+) FROM ROW COLUMN WALL THINNING LOCATION LOCATION 21 38 MCl TSH
-3.42 11 52 mal TSH 0.52 12 53 SCI TSH 0.06 11 54 SAI TSH 0.38 31 87 SAI TSH 0.08 1
100 SCI TSH
-0.11 l
3' 110 SVi TSH
-0.21 119 SVI TSH 3.89 i
i o
i
- +'
g:
ULNRC-3653 Page 12 of 20 t
TABLE 4 TUBE IMPERFECTIONS STEAM GENERATOR 'C' j
INDICATION %
INCH'+) FROM
-BOW
-COLUMN WALL THINNING LOCATION -
LOCATION -
10 3
SVI TSH 0.47
[.
2 6
~ sal TSH 0.07 24 14 SAI TSH-0.01 i
15 15 SVI TSH 0.08 i
33 34
~ SAI TSH 0.00 27 35 SCI
.TSH 0.01-24 45 SCI TSH 0.08 12 46 SCI TSH 0.02 15 46 SAI TSH 0.07 I
10 48 SVI TSH 0.17
[
57 48 SV1 TSH 0.15 23 51 SAI TSH
-0.02 49 51 SCI TSH 0.00
{
14 53 SCI TSH
-0.20 15 53 SCI TSH
-0.01 i
17 55 SCI TSH 0.11 28 56 SCI TSH Of9 11 59 sal TSH 0.44 14:
59 sal TSH 0.57
]
41 59 SCI TSH 0.15 j
12 60 SAI TSH 0,13 15-61 SCI TSH
-0.03 l
12 62 SAI TSH 0.31 1
15 62 -
SCI -
TSH
-0.04 I
41 63 SCI TSH 0.09 42 66 MCI TSH
-0.04 50 67 SCI TSH 0.07 10 70 SCI TSH
-0.08 14 71 SCI TSH
-3.52 35 77 SCI TSH 0.08 i
35 77 MCI TSH
-3.96 i~
31 78 SCI TSH 0.12 55 80 SCI TSH-0.03 17 81 SAI TSH-0.07 j
17 86 sal TSH 0.07 50 86 SCI TSH 0.04 I
37 87 SCI -
TSH 0.00
-35 90 SCl -
TSH-0.03 1
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ULNRC-3653 Page 13 of 20 TABLE 4 -
TUBE IMPERFECTIONS STEAM GENERATOR 'C' INDICATION %
INCH (+) FROM ROW
, COLUMN WALL THINNING LOCATION LOCATION 12 91 SCI TSH 0.10 19 91 SCI TSH 0.04 30 91 MCI TSH
-3.78 34 95 SCI TSH 0.02 29 97 SCI TSH 0.18 26 99 SCI TSH 0.12 17 100 SVI TSH
-0.01
ULNRC-3653 Page 14 of 20
. TABLES TUBE IMPERFECTIONS STEAM GENERATOR'p' INDICATION %
INCH (+) FROM ROW COLUMN WALL THINNING.
LOCATION LOCATION 41 51 SCI TSH
-0.07 14 55 SCl TSH 0.00 22 55 SVI TSH-3.10-15
- 61 SCl TSH 0.06 15 62 sal TSH 0.06 15 62 SCI TSH
-0.14.
15 62 SCI TSH 0.14 11 63 sal TSH 0.03 12 63 sal TSH 0.13 14 63 sal TSH 0.11 13 64 SCI TSH
-0.21
-14 64-MAI TSH 0.32 14 64 SCI TSH
-0.03 16 64 SCI TSH 0.11 13 65 sal TSH 0.38 24 65 SCl' TSH 0.14 13 66 SCI TSH 0.14 16 86 SCI TSH 0.08 32 94 SCI TSH 2.81 26 99 SCI TSH 0.08 14 101 MAI TSH 0.08 7
102 SVI TSH 0,18 14 102 MCI TSH 0.06 20
'116-SCI TSH 0.08 24 116-SCI TSH-
-0.33 27 8
23 AV1 0.00
~27 8
23
- AV1 0.00 28 8-21 AV6 0.19-30 10-21 AV5 0.00 31 10 32 AV2 0.13 31-10 31 AV5 0.00 31 12 23
-AV2
-0.13 34 13 32-AV3 0.00 34 13 25 AV4 0.00 34 13 24 AV5 0.00 35 16 -
33 AV3
-0.00 35 17~
33 AV3 0.15 39 18 21 AV3 0.00 40 23 30 AV5 0.06 41 23 28 AV3 0.02 41 23 29 AV4 0.04
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ULNRC 36C Page 15 of 20 TABLE 6
- TUBE IMPERFECTIONS STEAM GENERATOR 'D' INDICATION %
INCH (+) FROM-RQW COLUMN WALL THINNING LpCATION.
LOCATION 40
-24 26 AV4 0.00-40 24 23 AV5 0.00 43-25 23 AV2 0.00 43 25 30 AV4
-0.11 43 25 31 AV5
-0.00 41 26 27 AV4 0.00-45 28 22 AV2 0,00' 45 28-21 AV4 0,17 41 29 34 AV4 0.00 47 32 25 AV5 0.00 47 34 33 AV2 0.00 47 34 29 AV3 0.00 47 34 38 AV4 0.00 47 34 30 AVS 0.00 47 36 22 AVS 0.00 41 40 23 AV5 0.00 48 42 38 AV2 0,17
'48 42 23 AV3 0.00 48 42 31 AV4 0.00 i
47 43 23 AV2
-0.02 47 43 22 AV3 0.09 47 43 29 AV4 0,13 47 43 26 AV5 0.00 37 44 22 AV2
-0.09 37 44 26 AV3 0.00 47-44 30-AV3 0.17 47 44 27 AV4 0.00
-47 44 26 AV5 0.00 52-44-37
-AV3-0.19 46 45 27 AV3
-0.37 46 45-30 AV3 0.00 -
51-47 31 AV2 0.00 51 47
.20 AV4 0.00 47-49 23 AV4 0.19 46 5L 36 AV3 0.00 46 50 31 AV4 0.00 46 54 27 AV3
-0.15 47 61 26 AV3
.0.00 47 61 27 AV4 0 00 47 61 24 AV3 0.00 47-61 23 AV4 0.00 a
o.
UI.NitC-3653 Page 16 of 20 TABLES T_UBE IMPERFECTIONS STEAM GENERATOR 'D' INDICATION %
INCH (+) FROM FOw COLUMN WALL THINNING LOCATION LOCATION 51 67 24 AV5 0.00 52 68 33 AV2 0.00 52 68 34 AV3 0.00 52 68 30 AV4 0.00 52 68 30 AVS 0.00 37 72 28 AV4 0.00 52 73 36 AV2 0.00 52 73 38 AV3 0.00 52 73 30 AV4 0.00 39 76 26 AV4 0.00 39 77 20 AV5
-0.34 i
8 79 36 AV1 0.00 l
8 79 32 AV2 0.00 i
8 79 34 AV5 0.00 I
8 79 32 AV6 0.00 46 81 25 AV3
-013
(
32 82 22 AV3
-0.04 32 82 23 AV4 0.06 46 83 25 AV2
-0.30 46 83 23 AV3
-0.11 36 84 23 AV3 0.00 49 84 29 AV2
-0.32 49 84 40 AV3 0.00 49 84 40 AV4 0.00 49 84 37 AV6 0.00 49 84 29 AV2
-0.'2 4
49 84 37 AV5 0.00 39 86 24 AV4 0.00 39 87 22 AV5 0.00 39 88 21 AV2
-0.11 39 88 24 AV4 0.13 47 88 22 AV4 0.08 36 89 24 AV4 0.00 39 89 26 AV2 0.00 42 89 23 AV2 0.00 42 89 29 AV3 0,00 42 89 37 AV4 0.00 42 89 26 AV5 0.00 48 89 31 AV2 0.00 48 89 47 AV3 0.00 48 89 35 AV4 0.00 j
Ul,NRC 3653g i-Page 17 of 20' r.
TABLE 5 g
4 J
IV8E IMPERFECTIONS - 8 TEAM GENERATOR 'D' i
INDICATION %~
INCH (+) FROM ROW COLUMN.
WALL THINNING LOCATION.
LOCATION 3
48 89 30 AV2 0.00 48_
89 37 AV4 0.00 48 89 24 AV5
-0.08 i
34 90 22 AV3 0.06 i
39 91 20 AV3 0.00 l
39 91 35 AV4 0.00 39 91 20 AV5 0.00 36 93 21 AV4 0.00 1
48 94 21 AV3 0.02 1
j 48 94 25 AV4
-0.02 j
49 94 28 AV2 0.02 i
49 94 23 AV3 0.17 4
49 94 23 AV4 0.04 49 94 36 AV5 0.00-i 47 99 22 AV6 0.00' 36 101 25 AV3 0.00 37 102 24 AV3 0.00 37 102 26 AV4 0.00 j;
37 102 23 AVS 0.00 i
37 102 25 AV6 0.00 36 106 24 AV4 0.03 36 106 20 AVS 0.03 32 112 31 AV6 0.05 i
j.-
-32 113 20 AV2 0.00 i
l 32 113 21 AV6 0.00 26 116 20 AV1 0.00 4
)-
i l
I
s..
ULNRC.3653 Page 18 of 20 (3)
Identification of Tubes Plugged or Repaired Table 6 STEAM GENERATOR TlillES Pl.11GGED DlIRING_REFliEl,8 l
S/G A S/G H S/G C S/G D
~
ROW-f_QL ROW COL ROW
- col, ROW COL 56 47 21 38 10 3
48 42 57 76 11 52 2
6 41 51
~ 22 82 12 53 57 48 14 55 2
87 11 54 14 59 22 55 31 87 42 66 I 15 61 1
100 14 71 l
15 62 32 110 35 77 11 63 1
119 55 80 12 63 17 81
- 14 63 30 91 13 64 17 100 11 64 16 64 13 65 24 65 13 66 49 84 16 86 48 89 32 94 26-99 14 101 7
102 14 102 20 116 24 116 Table 7 STEAM GENERATOR CLIMLILATIVE TURE P1,tIGS PERIOD S/G A S/G H S/G C S/G D
- TOTAL, Previous 47 29 53 52 181 Refuel 8 -
4 8
11 25 48
- TOTAL, 51 37 64 77 229
t'.
' ULNRC-3653 Page 19 of 20 -
Table 8 provides a listing of the tubes that were sleeved during Refuel 8 by Westinghouse usin'g the We.,tinghouse Laser Welded Sleeve:
Table 8 STEAM GENERATOR TUBES SI,EEVED DURING REFUEL 8 SLG_A -
S/G A SLG_C S/G C ROW COL ROW COL ROW
- col, ROW COL-O l
29 30-25 71 24 14 15 61 i
-- 25
-42 15 72 15 15 12 62 21 43 19 72 33 34 15 62 19 47 16 75-27 35 41 63 18 48 12 76 24 45 50 67-l 21 48 18 76-12 46 10 70
_ 22-51-20 77 15 46 31 78-18 52 15 78-10 48-17 86 46 53 54
-78 23-51 50 86-14 54 36-79 49 51 37-87 21 54 27 80 14 53 35 90 57 55 23-82 15 53 12 al 17 57 20 83 17 55 19 91 22 57 31 87 28 56 34 95- -
-19 59 11 87 11 59 29 97 16 60 31 90 41 59 26 99 26 61 31 91-12 60 13 62 31 93 14 62 12 94
-19 63 31 95
-35 67 27 99 19
-70 8
115 3
l.
ULNRC 3653 c
Page 20 of 20 Additionally, during Refuel 8 the inconel 600 cold leg plugs were replaced with inconel 600 plugs due to the stress corrosion cracking concern addressed in NRC llulletin 89 01. The inconel 600 hot leg tube plugs were presiously replaced with incone! 690 plugs during Refuel 5. Table 9 provides a listing of the tube whose plugs were replaced with inconel 690 plugs during Refuel 8.
Ti.ble 9 STEAM GENERATOR tulle plt 1GS REPI, ACED JURING REFIIEL 8 S/G A S/G 11 S/G C S/G 1)
ROW COL 49 40 33 11 54 59 1
42 36 109 41 18 53 87 6
114 -
28 90 48 25 27 100 34 51 3
44 51 37 44 102 44 68 17 55 50 39 42 104 13 104 51 60 49 73 38 108 33 12
~
4 11 43 21 43 21 46 72 48 25 56 81 48 82 47 86
(
50 95 42 101 42 103 40 104 38 107
_O