IR 05000316/1985027
| ML17326B006 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 10/07/1985 |
| From: | Danielson D, David Jones NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML17326B005 | List: |
| References | |
| 50-316-85-27, NUDOCS 8510170224 | |
| Download: ML17326B006 (11) | |
Text
U ~ S.
NUCLEAR REGULATORY COMMISSION
REGION III
Report No. 50-316/85027(DRS)
Docket No. 50-316 Licensee:
American Electric Power Service Corporation Indiana 8 Michigan Power Company 1 Riverside Plaza Columbus, Ohio 43216 Facility Name:
D.
C.
Cook Nuclear Power Plant, Unit 2 Inspection At:
D.
C.
Cook Site, Bridgman, Michigan Inspection Conducted:
September 6, 19-20, 25-26, 1985 License No.
DPR-74 Inspector:
.
. Jones a 785 D
e Approved By:
D.
H. Danielson, Chief Materials and Processes Section JO 7 cfK Date Ins ection Summar Ins ection on Se tember
19-20 25-26 1985 (Re ort No. 50-316/85027(DRS))
P
'
NDE personnel certifications and data related to leakage evaluation and eddy current examination of Unit 2 steam generators.
This inspection involved a total of 30 inspector-hours onsite by one NRC inspector.
Results:
No violations or deviations were identified.
85>0XVone 85i007 PDR ADOCK 050003ib
'8 PDR
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1.
Persons Contacted DETAILS Indiana 8 Michi an Electric Com an (I88)
"A. Blind, Assistant Plant Manager, Maintenance
~J. Stietzel, gC Superintendent
"R. Otte, ISI Supervisor R. Tella, Performance Engineer, Maintenance Engineering B. Burke, Performance Engineer, Maintenance Engineering American Electric Power Service Cor oration (AEPSC)
"M. Evarts, Licensing Engineer Mestin house (M)
E. Belizar, eddy current Coordinator B. Kent, Shift Supervisor J. Divela, Lead Analyst Babcock 8 Wilcox B8M D. Cislo, Site Coordinator R. Fisher, Shift Supervisor The inspector also contacted and interviewed other licensee and contractor employees.
~Denotes those present at the exit interview.
2.
Leaka e Evaluation and Edd Current Examination of Unit 2 Steam Generators a ~
General Information On July 16, 1985, Unit 2 was shutdown 'to investigate primary-to-secondary system leakage and as a result two tubes were plugged in S/G 23.
Shortly after synchronizin'g the unit on August 2, 1985, and commencing power increase, primary-to-secondary leak indications in the No.
23 S/G recurred.
Subsequently, approximately 1,552 tubes were eddy current inspected full-length and 35 tubes were plugged.
On August 24, 1985, Unit 2 was again shut down, for the third time, to investigate primary-to-secondary leakage, which was visible in S/Gs 22 and 24.
The leakage did not exceed Technical Specification limits.
Indiana and Michigan Electric Company (I@1) decided to perform 100K eddy current examination on Unit 2 S/Gs 21, 22, 24, and the remaining tubes in S/G 23 that had not been tested during the July and August shutdown M contracted with Westinghouse
{W) to perform the steam generator eddy current examination and tube p'ulling and with Babcock and Wilcox {B8W) to perform the tube plugging.
The eddy current examination was performed in accordance with ASME Code Section XI, 1980 Edition, Winter 1981 Addenda.
Eddy current examination was performed on steam generators 21, 22, 23 and 24, and the following tubes were plugged:
Row
7 10llll
15
Steam Column
18
15
14
32 Generator No.
Row
16
20
25
Column
41
13
21
Row
4, 6llllll
12
14
15
Steam Column
19
55
61 42)k
57
61
10 Generator No.
Row
16
17
18
19
25
28 Column
47
71
,46
33
31
54
37
~Tube pulled for analysis m
n u
m
p I '
Il t I'
Row
4
24
31 Steam Generator No.
Column
11
35
22
Row
37
40
41 Column
30
34
46 Row
4
7
9
10
12
13
14
15
16
16
17
18
18
Steam Column
49
94
65
57
55
55
22
53
54
65
55
61
63
Generator No.
Row
18
19
19
19
19
19
20
20
21
22
23
33
35 Column
70
56
60
63
67
81ll
65
67
72
56
54
67
I
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J f,>
l! 'ik L
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E II N
l
l
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The following tubes were pulled from S/G 22 for analysis:
b.
Procedure Review Row
11
6
Column
25
40
The inspector reviewed the following procedures:
W, Hands-On Lower Hard Roll Tool, AEA-327(81), Revision
W, Installation and Removal of Temporary Nozzle Covers, MRS 2.2.2 Gen-2, Revision
W, Steam Generator Tubesheet Marking, MRS 2.2.2 Gen-12, Revision
W, Installation and Removal of Eddy Current Positioning Devices, MRS 2.4.2 Gen-19, Revision
W, Digital Multi-Frequency Eddy Current Inspection of Preservice and Inservice Heat Exchanger Tubing, MRS 2.4.2 Gen-28, Revision
W, Remotely Operated Service Arm (ROSA) Series 51 S/G Operating Procedure, P-SE-ATS-84-043, Revision
W, Control of Field Service Activities, OPR 610-3, Revision
W, "Hands-On" Machining of Steam Generator Tubes, MRS 2.3.2 Gen-14, Revision
W, S/G Primary Side Tube Removal, MRS 2.3.2 Gen-3, Revision
W, Weld Repair of Steam Generator Tubes/Plugs, MRS 2.3.2 Gen-6, Revision
W, Steam Generator Barehole/Tube Plugging by Gas Tungsten Arc Welding, WEP 221, Revision A
',
Tube/Bare Hole Plugging Steam Ge'nerators with a Thimble Plug - Automatic Gas Tungst'en Arc Welding (GTAW)-
Autogenous, WQS 7901, Revision
W, Automatic Gas Tungsten Arc Welding (GTAW) - Autogenous, WPS 7907, Revision
W, Gas Tungsten Arc Welding (GTAW),
WPS 6907, Revision A
W, Weld Repair of Steam Generator Tubes/Plugs Using ROSA, W-NSID-SAE-SGSE-FP-73(84),
Revision 0, FCR 001 W, Examination of Steam Generator Tubes/Explosive Plugs Repaired by Welding per MRS 2.3.2 Gen-6, QAIP-1-VT, Revision
B8W, Operating Instructions -
ROGER Manipulator Computer System, 1147815, Revision
BSW, Setup and Teardown Instructions for ROGER, 1149677, Revision
B&W, Setup and Teardown Instruction for RSG W-51 Mast and Arm, 1151412, Revision
BSW, Installation and Removal Instructions for RSG W-51 Mast and Arm, 1151413, Revision
<<
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tl It
N <<.,l'
tt
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B&W, Remote Manual Tube End Repair, 1157873, Revision
B&W, Manual Marking of RSG Tube Locations, 1151423, Revision
B&W, RSG Tube Plugging with Mechanical Roll Plugs, 1151806, Revision 4 B&W, Roll Plug Removal Tooling-OI, 1151811, Revision
B&W, Roll Expansion Tool Setup, Maintenance and OI for Remote and Manual Roll Plug Installation, 1151810, Revision
B&W, Tool'ing for Installation and Removal of Mechanical Plugs in.875 OD Tubes, 1146405, Revision
No violations or deviations were identified.
C.
Material and E ui ment Certification The inspector reviewed the certification documents relative to the following items:
(1)
Eddy current equipment (2)
ROSA mechanical plugging equipment No violations or deviations were identified.
d.
NDE Personnel Certifications and Observation of Work Activities The inspector reviewed NDE personnel certifications in accordance with SNT-TC-1A, 1975/1980 Editions.
The inspector also observed and had discussions with personnel during the following work activities:
Eddy current examination of S/G 24, Row 3 - Columns 52-58 and Row 2 - Columns 52-54 and 57.
The examination was performed in accordance, with Westinghouse Procedure MRS, 2.4.2 Gen-. 28, Revision 0, "Digital Multi-Frequency Eddy Current Inspection of Preservice and Inservice Heat Exchanger Tubing."
Tube-plugging of S/G 24, Row 3 - Column 24, Row 14 - Column 22, Row 6 - Column 19 and Row 20 - Column ll.
The tube plugging was performed in accordance with Babcock
& Wilcox Procedure 1151806, Revision 4,
"RSG Tube Plugging with Mechanical Roll Plugs."
No violations or deviations were identified.
3.
Exit Interview The Region III inspector met with the licensee representatives (denoted in Paragraph 1) at the conclusion of the inspection on September 26, 1985.
The inspector summarized the purpose and findings of the inspection.
The
I t
. ~
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JJ
licensee representatives acknowledged this information.
The inspector also discussed the likely informational content of the inspection report with regard to documents or processes reviewed during the inspection.
The licensee representatives did not identify any such documents/processes as proprietary.