ML20133M348
| ML20133M348 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 01/14/1997 |
| From: | Warren C WOLF CREEK NUCLEAR OPERATING CORP. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| WO-97-0006, WO-97-6, NUDOCS 9701220349 | |
| Download: ML20133M348 (15) | |
Text
. -.-
I LF CREEK W@) NUCLEAR OPERATING
~
Clay C. Warren Chief Operating Offmer January 14, 1997 1
WO 97-0006 U.
S. Nuclear Regulatory Commission ATTN:
Document Control Desk Mail Station P1-137
. Washington, D. C.
20555
Subject:
Docket No. 50-482: Special Report 97-001: Steam Generator Tube Inspection Results Gentlemen:
The attached Special Report is' being submitted in accordance with Technical Specification 4.4.5.5.b concerning the results of Wolf Creek Generating Station's seventh steam generator tube inservice inspection.
'If you have any questions concerning this matter, please contact me at (316) 364-8831 extension 4485, or Mr. Terry S. Morrill, at extension 8707.
4 Very truly yours, 1
C1 C. Warren CCW/jad j
1 Attachment cc I. Barnes (NRC), w/a L. J. Callan (NRC), w/a
\\
\\
W. D. Johnson-(NRC), w/a pg J.
F.
Ringwald (NRC), w/a
\\
'J. C. Stone (NRC),.w/a h
9701220349 970114 I
RO. Dox 411/ Burhngton, KS 66839 / Phone: (316) 364-8831 h
An Equal Opportunity Employer M F:HC/ VET
At,tachment to WO 97-0006 Piga l'of 14 i
SPECIAL REPORT 97-001 SEVENTH STEAM GENERATOR TUBE INSPECTION RESULTS i
This report is being submitted pursuant to Technical Specification 4.4.5.5.b and 6.9.2 to report the results of the seventh steam generator tube inservice E
inspection.
6 The seventh steam generator tube inservice inspection was completed by Westinghouse Elect ric Corporation on March 5, 1996 during the eighth refueling outage.
Of the 5617 tubes inspected in Steam Generator "B",
a total of 12 j
tubes were plugged dva to new indications found during the inspection.
Nine tubes had been previously plugged due to indications discovered during prior inservice int p RioiEi.'
Additionally, four of the 5619 tubes inspected in j
Steam Generator "C" were plugged due to new indications.
Seven tubes had been previously plugged due to indications discovered during prior inservice
- inspections.
The inspection.results, which includes the location and percent 1
of wall-thickness penetration for each indication of an imperfection, are listed in Section 3 of this report.
q In response to Generic Letter 95-03 "Circumferential Cracking of Steam j
Generator Tubes," additional inspections were conducted in Steam Generators "B" and "C"
to establish a baseline for future inspections. A 20% hot leg top j
of tubesheet, (1125 tubes) and a 20% row 1 ubend, (24 tubes) inspection program was performed in each steam generator with the Zetec Plus Point probe.
j j
The results of these additional inspections did not indicate any degradation J
(cracking)'of the steam generator tubes.
l l
4 1
J The results of the seventh steam generator tube inservice inspection have been classified into Category C-2.
Category C-2 is defined by Technical j
Specification 3.4.5 as inspection results that indicate that one or more tubes, but not more than 1 percent of the total tubes inspected are defective, or between 5 percent and 10 percent of the total tubes inspected are degraded tubes.
Steam Generator "B"
has 1.69 percent degraded tubes and 0.37 percent defective tubes.
Steam Generator "C" has 0.85 percent degraded tubes and 0.20 percent defective tubes.
i
- 1. Number and Extent of Tubes Inspected:
)
i A. Steam Generator "B": A total of 5617 tubes were inspected full 4 '
length.
B.
Steam Generator "C": A total of 5619 tubes were inspected full length.
1
... - _. ~..
1
,Attachmsnt:to Wo 97-0002.
1 Piga 2..,ofL14 2,
Identification of Tubes Plugged:
, 3 Row. Column
+
f A. Steam Generator "B":
j
?
New pluggable indications 48 28 51 34 l
).
48 35 l
j '
42 44.
l 52 44 50 50 i
54 55' 5
i
~~
50 58 5
56 58 l
j 46 73 4
50 73 47 98 1
Row Column B. Steam Generator "C" New pluggable indications 49.
36 1
49 76 4
44 92 3
35 110 f
1
- 3. Location and Percent of Wall Thickness: Penetration for Each Indication of I'
I an Imperfection - (Note:
Multiple listings of the same tube are the result of more than one indication in that tube):
Key for Indication Lists
- H, #C
(# = number) of Support Plate Hot Leg or Cold Leg Side AV#
Anti-Vibration Bar (# = number)
TSH Tube Sheet Hot Leg TSC Tube' Sheet Cold Leg j
FBH Flow Baffle Hot Leg l
l FBC Flow Baffle Cold Leg 4
P Tube Plugged, following % of Wall Thickness Loos
'I Indication
% of Wall Thickness Loss Inch
(+, -)
Distance Measured from reference from point (Jul Bar, Baffle Plate, Tube Location Support Plate, etc.)
i t
)
+-
,Attcchment to WO 97-0002 Piga 3 of 14 Tube Indications In Steam Generator "B"
Indication Inch (+)
Estw column Location / Lea
(% of wall Thickness)
From Location 27 8
AV1 25
.00 30 10 AV5 19
.00 l
33 12 AV5 22
.00 45 22 AV5 21
.00 45 22 AV6 21
.00 42 23 AV3 13
.00 42 23 AV4 14
.00 45 24 AV2 17
.00 47 24 AV5 18
.00 47 24 AV6 20
.00 46 25 AV3 28
.00 46 25 AV4 30
.00 46 25 AV5 30
.00 46 25 AV6 24
.00 48 25 AV5 13
.00 49 27 AV6 19
.14 48 28 AV2 31
.00 48 28 AV3 28
.06 48 28 AV4 40
.03 48 28 AV5 42P
.20 48 28 AV6 30
.20 49 28 AV4 16
.03 49 28 AV5 31
.00 49 28 AV6 18
.00 44 30 AV4 19
.00 44 30 AV5 13
.00 49 31 AV5 23
.00 22 32 FBH 29 1.63 45 33 AV3 16
.00 49 33 AV3 21
.00 49 33 AV4 11
.25 49 33 AV5 23
.08 49 33 AV6 17
.00 51 34 AV2 28
.00 51 34 AV3 25
.11 51 34 AV4 44P
.00 51 34 AV5 41
.00 2
36 35 AV2 15
.00 36 35 AV4 11
.00
)
i 48 35 AV2 23
.00 48 35 AV3 41P
.17 48 35 AV4 39
.00 48 35 AV5 18
.00 1
. Attachment to WO 97-0002 Pr*g3 4 of 14 Tube Indications In steam Generator "B"
Indication Inch (+)
Row Column Location / Leo
(% of Wall Thickness)
From Location 53 35 AV4 19
.00 53 35 AV5 29
.00 53 35 AV6 16
.00 42 36 AV2 15
.00 42 36 AV4 21
.00 49 36 AV3 21
.14 49 36 AV4 21
.14 49 36 AV5 21
.14 49 37 AV2 18
.00 49 37 AV3 16
.00 49 37 AV4 19
.00 49 37 AVS 19
.00 50 37 AV4 37
.00 50 37 AVS 28
.00 48 38 AV3 32
.00 48 38 AV4 25
.00 48 38 AV5 33
.00 50 38 AV4 18
.00 50 38 AV5 17
.00 52 38 AV3 19
.00 52 38 AV5 18
.00 42 39 AV3 17
.00 50 39 AV2 19
.00 50 39 AV3 35
.00 50 39 AV4 28
.00 25 40 5H 13 21.00 42 40 AV3 19
.00 41 41 AV3 14
.00 37 43 AV3 24
.00 46 43 AV6 21
.00 47 43 AV2 15
.00 42 44 AV2 20
.00 42 44 AV3 35
.00 42 44 AV4 41P
.00 42 44 AV5 28
.00 42 44 AV6 23
.00 52 44 AV2 30
.00 52 44 AV3 39
.00 52 44 AV4 46P
.00 1
45 TSC 25
.56 47 45 AV1 17
.00 47 45 AV2 15
.00 48 45 AV4 32
.00
f r
. Attachment to wo 97-0002 l
Piga 5 of 14
[
I i
i Tube Indications In Steams Generator "B"-
j i
k Indication-Inch (+)
E2E Column Location / Lea (t of wall Thickness)
From' Location i
~[
48 45 AV5 28
.00 49 45 AV2 32
.00 l
I
'49 45 AV5 33
-. 0 0 49 45 AV6
.24
.00 i
44 46 AV1 19
.00 4-44 46' AV2 12
.00 44 46 AV4
'24
.00 f
f 44 46 AV5
'14
.00 42 47 AV3 21
.00 L
42 47
.AV4 20
.00 l
42
.47' AV6 17
.20 j
46 47 AV6 19
.00 i
47 47 AV2 19
.00 50 47 AV1 15
.00 t
50 47 AV2 36
.00 l
50 47 AV3 33
.00 50 47 AV4 13
.00 56 47 AV4 20
.00 t
56 47 AV5 21
.00 48 48 AV3 22
.00
{
48 48 AV4 30
.00 i
l 50 48 AV2 22
.00 50 48 AV5 19
.00 30 49 AV2 25
.00 l
-30 49 AV5 33
.00 I
i 30 49 AV6 29
.00 39 49 AV4 29
.05 33 50 AV4 14
.0 44 50 AV2 15
.00 l
44 50 AV3 17
.00 j
44 50 AV4 14
.00 l
45 50 AV3 16
.00 j
45 50 AV4 21
.00 45 50 AV5.
15
.22 47 50 AV2 15
.00 l
50
'50 AV2 21
.22 50 50 AV3 34
.11 5
50 50 AV4 50
.22 f
50 50 AV5 54P
.11 50 50 AV6 21
.19 l
53 50 AV1 24
.06 53 50 AV2 16
.17 j
53 50 AV3 27
.17 l
(
t e
i
-+--a
,e-e
~, - -
ye-v, e,
e-vr n
=
. Attcchmsnt to WO 97-0002-Piga 6 of 14 Tube Indications In Steam Generator "B"
Indication Inch'(+)
Es2w column Location / Lee
-(t of wall Thickness)
From Location 53 50 AV4 27
.17 53 50 AV5 22
.17 44 51 AV2 11
.00 44 51 AV3 14
.00.
-50 51 AV;-
20
.20' 50-51 AV3 21
.14 50' 51 AV4 23
.11 50 51 AV5 38'
.00 25 52 AV6 22
.00 40 52-AV4 24
.00 40 52 AV5 19
.00 45 52 AV1 22
.00 145-52 AV2 33
.00 45 52 AV4 31
.00 50 52 AV2 22
.00 44 53 AV2 31 00 44 53 AV3 23
.00' 45 53 AV3 24
.00 46 53 AV3 30
.00-47 53 AV3 25
.00 49 53 AV4 21
.00 49 53 AV5 33
.00 59 53 7H 11
.67 42 54 AV1 23
.00 42 54 AV2 24
.00 42 54 AV3 17
.00 42 54 AV4 19
.00 42 54 AV5 35
.00 45 54 AV3 32
.00 45 54 AV4 26
.00 47 54 AV3 17
.00 47 54 AV5 18
.00 50 54 AV3 21
.00 50 54 AV4 22
.00 51 54 AV4 25
.00 43 55 AV2 20
.00 43 55 AV3 29
.00 43 55 AV4 24
.00.
51 55 AV5 21
.00 54 55 AV1 20
.00 54 55 AV2 40 00 54 55 AV3 31
.00 54 55 AV5 48P
.00
. Attcchment to WO 97-0002 Piga 7 of 14 Tube Indications In Steam Generator "B"
Indication Inch (+)
Row Column Location / Lea
(% of Wall Thickness)
From Location 37 56 AV2 15
.00 54 56 AV1 26
.00 54 56 AV2 37
.00 54 56 AV3 25
.00 54 56 AV5 28
.00 54 56 AV6 16
.00 40 57 AV2 14
.00 48 57 AV4 27
.00 48 57 AV6 19
.00 36 58 AV2 21
.00 36 58 AV3 22
.00 43 58 AV2 15
.00 44 58 AV2 12
.00 44 58 AV5 15
.00 50 58 AV1 19
.00 50 58 AV2 41P
.00 50 58 AV5 24
.00 50 58 AV6 22
.00 53 58 AV3 36
.00 53 58 AV4 38
.00 53 58 AV5 39
.00 53 58 AV6 27
.00 56 58 AV4 45P
.00 56 58 AV5 42
.00 56 58 AV6 23
.00 48 59 AV3 19
.00 50 59 AV2 33
.00 50 59 AV3 22
.00 50 59 AV4 18
.00 50 59 AV5 31
.00 40 60 AV2 18
.00 40 60 AV3 19
.00 46 60 AV5 26
.00 46 60 AV6 18
.00 47 60 AV3 25
.00 48 60 AV4 29
.00 48 60 AV5 37
.00 46 61 AV3 28
.00 46 61 AV4 24
.00 46 61 AV6 24
.00 48 61 AV5 24
.00 50 61 AV2 19
.00 50 61 AV3 26
.00 l
)
1
)
1
\\
Attechment to WO 97-0002 P'ga 8 of 14 Tube Indications In Steam Generator "B"
Indication Inch (+)
EsLw column Location / Leo
(% of Wall Thickness)
From Location 50 61 AV5 18
.00 40 62 AV5 27
.00 42 62 AV5 33
.00 46 62 AV3 24
.00 46 62 AV6 34
.00 49 62 AV2 23
.00 45 63 AV3 18
.00 45 63 AV4 17
.00 45 63 AV6 10
.00 46 63 AV5 19
.00 37 64 AV5 11
.00 50 65 AV2 29
.00 50 G5 AV3 24
.00 53 65 AV2 25
.00 41 66 AV2 11
.00 46 66 AV3 19
.00 47 66 AV2 20
.00 47 66 AV5 18
.00 14 68 SH 18 10.90 42 68 AV6 12
.00 45 68 AV5 20
.00 45 69 AV4 18
.00 45 69 AV5 22
.00 50 69 AV3 23
.00 41 71 AV2 18
.00 49 71 AV2 22
.00 40 72 AV2 22
.00 40 72 AV5 24
.00 44 73 AV4 17
.00 44 73 AV5 17
.00 46 73 AV4 16
.00 46 73 AV5 42P
.00 46 73 AV6 17
.00 50 73 AV2 27
.00 50 73 AV4 30
.00 50 73 AV5 44P
.00 50 73 AV6 18
.00 37 74 AV3 15
.00 45 74 AV3 18
.00 45 74 AV4 22
.00 45 74 AV5 33
.00 45 74 AV6 15
.00 50 74 AV2 30
.00
. Attachment to WO 97-0002 Piga 9 of 14 Tube Indications In Steam Generator "B" Indication Inch (+)
B.gy Column Location / Leo
(% of Wall Thickness)
From Location 51 74 AV5 18
.00 55 74 AV6 19
.00 46 75 AV3 19
.00 44 79 AV2 17
.00 44 79 AV3 24
.00 44 79 AV5 34
.00 44 79 AV6 29
.00 45 80 AV3 20
.00 45 80 AV5 18
.00 36 81 AV5 21
.00 40 81 AV2 33
.00 40 81 AV3 23
.00 47 81 AV3 17
.00 47 81 AV4 21
.00 51 85 AV3 16
.00 51 85 AV4 27
.00 44 86 AV3 14
.00 44 86 AV4 16
.00 44 87 AVS 23
.00 45 89 AV4 18
.00 1
90 FBH 13
.33 23 90 AV6 18
.00 50 90 AV4 18
.00 1
91 FBH 20
.29 47 91 AV5 18
.00 50 91 AV6 20
.00 1
92 FBH 13
.28 1
93 FBH 15
.22 46 94 AV3 24
.00 46 94 AV4 19
.00 47 96 AV4 29
.00 47 96 AV5 25
.00 49 96 AV6 17
.00 47 97 AV5 36
.00 45 98 AV5 18
.00 46 98 AV5 32
.00 47 98 AV4 26
.00 i
47 98 AV5 46P
.00 47 98 AV6 25
.00 48 98 AV5 33
.00 48 98 AV6 29
.00 45 99 AV5 24
.00 46 99 AV4 15
.00 i
Attechment to WO 97-0002
~
Pig 2 10 of 14 Tube Indications In Steam Generator "B" Indication Inch (+)
h ggly_mn Location / Leo
(% of Wall Thickness)
From Location 46 99 AV6 15
.00 43 100 AV5 26
.00 44 100 AV5 18
.00 44 100 AV6 36
.00 41 101 AV6 17
.00 42 101 AV5 20
.00 43 101 AV6 18
.00 44 101 AV4 28
.00 44 101 AV5 29
.00 42 103 AV5 18
.00 43 103 AV5 17
.00 40 104 AV6 14
.00 41 104 AV5 17
.00 41 104 AV6 73
.00 38 105 AV3 26
.00 38 105 AV6 15
.00 39 105 AV6 18
.00 1
106 TSC 21 15.61 1
107 TSC 22 15.67 1
108 TSC 14 15.71 36 110 AV6 15
.00 28 113 AV5 18
.00 6
115 FBC 29 1.54
... ~..,
....... _ -~
i r
Attachment to WO, 97-0002
~
Prga'11 of 14 Tube Indications In steam Generator "C"
4 Indication Inch (+)
E2w column Location / Leo
(% of Wall Thickness)
From Location i
[
.1 10 TSC 18 15.37 34 14 AV1 21
.00
{
34 14 AV4 19
.00 35 15 AV2 27
.00 35 16 AV2 19
.19 38 19 TSC 30 9.32 38-19 TSC 30 9.29 r
15 20 3H 12 19.88 i
38 20 AV2 22
.00 1
25 3C 13 23.73 i
48 25 AV4 33
.19
[
48 25 AV5 29
.11 1
32 FBC-23
.30 2
33 FBC 14
.34 44 33 AV4 11
.00 44 33 AV5 17
.00 i
40 34 AV4 17
.00 l
40 34 AV5 19
.00 40 34 AV6 15
.00 7
35 3C 27 28.17 i
49 35 7C 29
.70 49 36 AV1 23-
.00 49 36 AV2 21
.00 49 36 AV3 52P
.00 l
49 36 AV4 43
.00 j
49-36 AV5 38
.00 49 36 AV6 29
.00 28 39 AV1 21
.00 28 39 AV2 20
.00 j
28 39 AV6 23
.00 42 40 AV1 14
.00 l
42 40 AV3 19
.00 f
42 40 AV4 21
.00 42 40 AV5 12
.00 51 40 AV4 19
.00 l
51 40 AV5 11
.00
)
f 28 41 FBH 18 13.45 22 44 TSH 24 15.93 i
27 44 AV2 21
.00 j
27 44 AV5 19
.00 39 45 AV4 37
.00 f
'39 45 AV5 35
.21 58 46 AV4 16
.00 31 48 AV2 17
.00 31 48 AV5 31
.00 1
I
.. ~. -...
.-. - ~.. _
~...... -. -.
. Attachment to WO 97-0002 l
Piga 12 of 14
- ~
Tube Indications In steam Generator ac" l
Indication Inch (+)
i
. Column Location / Lea
(% of Wall Thickness)
From Location EJ2E 1
)
31 48 AV6 26
.00
.3 45 48 AV5 23
.00 4
45 48' AV6 17
.00 27 49 FBH 22 14.41
-39 50 AV4 21
.00 39 50 AV5 25
.00 i
38 54 AV2 27
.00-38 54 AV3 27
.00 38 54 AV4 29
.00 29 55 AV2 16
.00 l
45 55 AV2:
16
.00 45 55 AV3.
16
.00 45-55 AV4 19
.00 45 55 AV5 18
.00 26 57 AV5 19
.00 37 58 AV2 22
.00 30 59 AV5 15
.00 i
34 60 AV2 17
.00 30 62 AV2 15
.00 50 62 AV4 31
.00 50 62 AV5 21
.00 50 63 AV2 24
.00 50 63 AV3 18
.00 50 63 AV4 25
.00 50 63 AVS 17
.00 45 64 AV2 20
.06 l
45 64 AV3 29
.10 50 64 AV2 39
.00 50 64 AV3 29
.10 45 65 AV2 31
.09 l
45 65 AV3 34
.08 45 65 AV4 29
.00 50 66 AV2 27
.00 f
52 67 AV2 26
.00 52 67 AV3 34
.00 52 67 AV4 31
.00 52 67 AV5 17
.00 f
52 67 AV6 19
.00 44 68 AV1 12
.00 44 68 AV2 24
.00 44 68 AV3 15
.00 44 68 AV4 17
.00 44 68 AV6 21-
.00 i
50 68 AV2 25
.00 j
50'
'68 AV3 17
.00 j
l i
t i
Attachment to'WO, 97-0002 Ps'ga 13 of 14 Tube Indications In Steam Generator "C"
Indication Inch (+)
Row Column Location / Leo
(% of Wall Thickness)
From Location 52 68 AV2 21
.00 52 68 AV3 26
.00 52 68 AV4 24
.00 52 68 AV5 17
.00 52 68 AV6 15
.00 45-69 AV2-29
.00 45 69 AV4 32
.00 45 69 AV5 22
.16 26 73 FBC 13 10.80 27 73 FBH 21 13.36 43 75 AV4 16
.00 43 75 AV5 16
.00 49 76 AV1 22
.00 49 76 AV2 45
.00 49 76 AV3 41
.00 49 76 AV4 45
.00 49 76 AV5 46
.00 49 76 AV6 60P
.00 51 76 AV3 19
.00 35 77 AV2 22
.00
.35 77 AV6 18
.00 45 77 AV4 18
.00 35 78 AV3 27
.00 35 78 AV4 26
.00 35 78 AV5 16
.00 27 79 FBC 32 14.71 1
49 80 AV5 18
.13 49 80 AV6 16
.00 36 81 AV2 15
.00 36 81 AV4 18
.05 j
45 84 AV3 34
.20 45 84 AV4 33
.16 45 84 AV5 20
.07 36 85 AV2 23
.20 4-36 85 AV4 23
.11 38 85 AV5 20
.16 l
40 86 AV4 18
.00 1
90 FBC 22
.33 1
91 FBC 24
.35 35 91 AV3 19
.18 i
36 91 AV2 15
.00 45 91
.AV4 15
.00 1
45 91 AV6 18 16
)
1
'92 FBC' 31 31 30=
92 AV2 25
.15 i
. ~. ~
.. Attachmsnt'to WO 97-0002
~ Pag 2 14 of 14 Tube Indication's In steam Generator aca i
?
f Indication Inch (+)
l Enr column-Location / Leo-(t of wall Thickness)
From Location-30.
92 AV5 19-
.21
'30 92 AV6 19
.11 l
35 92 AV2 17.
.00 j
38 92 AV3 14
.00 44 92 AV2 46P
.00 4 4..
92 AV3 36
.00 44 92 AV4 38
.00 h
44 92.
AV5 28
.24 l
44 92 AV6 24
.00 1
93 FBC 26
.36 l
1 94 FBC 19
.30 l
43 95 AV3 32
.00 43 95 AV4 29
.00 l
43 95 AV5 36
.00 44 96 AV3 25
.00 44 96 AV4 19
.00 i
44 96 AV5 22
.00 l
40 101 AV5 16
.00 38 103 AV3 11
.00 j
40 103 AV4 28
.00 40 103 AV5 38
.00 35 106 AV4 19 08 f
32 107 AV6 18
.00 38 107 AV2 18
.00 38 107 AV3 18
.18 38 107 AV4 26
.25 38 107 AV5 21
.00 38 107 AV6 22
.00 j
33 108 AV4 18
.15 35 108 AV6 16
.17 36 108 AV3 33
.16 l
36 108 AV4 29
.08 36 108 AV6 20
.23 l
37 108 AVS 18
.00 34 109-AV4 16
.15 34 109 AV5 17
.10 i
35 109 AV3 19
.14 l
35.
109 AV4 28
.20 t
35 109 AV5 30
.20 35 110 AV2 30
.00 l
35 110 AV5 42P
.00 l
4 l
1
- m 4
..__..~s,.
,,