ML16161A967
| ML16161A967 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 03/23/1988 |
| From: | Blake J, Newsome R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML16161A968 | List: |
| References | |
| 50-269-88-07, 50-269-88-7, 50-270-88-07, 50-270-88-7, 50-287-88-07, 50-287-88-7, NUDOCS 8803310280 | |
| Download: ML16161A967 (12) | |
See also: IR 05000269/1988007
Text
RREG
- LA
UNITED STATES
CLEAR REGULATORY COMMISSION
REGION II
o<
101 MARIETTA STREET, N.W.
ATLANTA, GEORGIA 30323
Report Nos.:
50-269/88-07, 50-270/88-07, and 50-287/88-07
Licensee:
Duke Power Company
422 South Church Street
Charlotte, NC
28242
Docket Nos.: 50-269, 50-270,
License Nos.: DPR-38, DPR-47, and
and 50-287
Facility Name:
Oconee 1, 2, and 3
Inspection Conducted:
March 7-11, 1988
I n sp e ctor: 7r
I_
3__-__2_Z__
R.
ome
Date Si ned
Approved b
.
J.
Blake, Section Chief
Date Signed
a erials and Processes Section
Dvision of Reactor Safety
SUMMARY
Scope:
This routine,
announced inspection was in the area of Inservice
Inspection (ISI)
including Nondestructive Examination (NDE)
procedures review,
in-process examinations observations, examination data review,
and equipment
and personnel certification records review.
Results:
No violations or deviations were identified.
8803310280 880325
ADOCK 050002659
Q!
REPORT DETAILS
1. Persons Contacted
Licensee Employees
- B. Carney, Maintenance Service
- S. Cruse, Maintenance Services Engineer
- B. Foster, Maintenance Superintendent
- B. Hunt, Quality Assurance
- R. Ledford, Quality Assurance
- T. Matthews, Regulatory Compliance
- B. Millsaps, Maintenance Services Engineer
- D. Perry, Design Engineer
- J. Reeves, Senior Engineer, Design
- M. Tuckman, Station Manager
Other licensee employees contacted included craftsmen, engineers,
technicians, security force members, and office personnel.
NRC Resident Inspectors
P. Skinner, Senior Resident Inspector.
- L. Wert, Resident Inspector
- Attended exit interview
2.
Exit Interview
The inspection scope and findings were summarized on March 11, 1988, with
those persons indicated in Paragraph 1 above. The inspector described the
areas inspected and discussed in detail the inspection findings.
No
dissenting comments were received from the licensee.
The licensee did not identify as proprietary any of the materials provided
to or reviewed by the inspector during this inspection.
Note:
An alphabetical tabulation of acronyms used in this report is
listed in Paragraph 6.
3.
Licensee Action on Previous Enforcement Matters
This subject was not addressed in the inspection.
4. Unresolved Items
Unresolved items were not identified during this inspection.
2
5.
Inservice Inspection (ISI)
The ISI activities being
conducted during this outage were being
accomplished
by
Duke
Power Company
(DPC)
and their agent,
Babcock
and Wilcox (B&W)
in Unit 2.
B&W was performing all Ultrasonic (UT)
examinations with DPC
personnel assistance in
some cases.
B&W was
conducting all the Eddy Current (EC)
data acquisition activities and
performing the primary data analysis while DPC personnel, with the aid of
the Automated Data System (ADS),
was performing a secondary independent
analysis of all EC data.
DPC was performing all Magnetic Particle (MT),
and Radiography (RT)
examinations.
Both B&W and
DPC were conducting visual (VT) examinations.
a. Procedure Review, Units 1, 2, 3 (73052)
The inspector reviewed the
ISI procedures indicated below to
determine whether the procedures were consistent with regulatory
requirements
and licensee commitments.
Based
on the licensee's
Technical Specification, the applicable code for ISI is the ASME
Code,Section XI, 1980 Edition, Winter 1980 Addenda.
(1) The following B&W and DPC procedures were reviewed in the areas
of procedure approval,
requirements for qualification of NDE
personnel, and compilation of required records.
B&W Procedures
Procedure
No.
Title
Revision
ISI-182
Ultrasonic Examination of
1
Reactor Welds Joining Similar
and Dissimilar Materials
ISI-418
Technical Procedure for the
3
Multi-frequency Eddy Current
Examination of OTSG Tubing
in 177 Steam Generators using
the MIZ-18
DPC Procedures
NDE-703
Evaluation of Eddy Current
0
Data for Steam Generator
Tubing
NDE-44
Ultrasonic Examination of Bolts,
7
Studs, Bushings, and Threads
in Flanges for Preservice and
Inservice Inspection
3
Procedure
No.
Title
Revision
NDE-25
Magnetic Particle Examination
12
Procedures and Technique
NDE-6
Calibration/Verification of
1
NDE Equipment
NDE-700
Multifrequency Eddy Current
0
Examination of OTSG Tubing in
177 Steam Generators using the
MIZ-18 (Oconee Only)
QA-514
Procedure for Non-Service Induced
1
Discrepancies Found During
Inservice Inspection Visual
Examination of Supports
NDE-35
Liquid Penetrant Examination
10
Technique (Color Contrast,
Solvent Removable Method)
QCL-13
ISI Visual Examination VT-1
5
QCL-14
ISI Visual Examination VT-3 and VT-4
7
All procedures listed above had been previously reviewed during
previous NRC
inspections.
During this
inspection,
only
revisions to previously reviewed documents were reviewed.
(2) In addition to the review above,
DPC Procedure NDE-44 was reviewed in the area of technical
content relative to:
type of apparatus,
extent of coverage
including beam angles and scanning techniques,
calibration
requirements,
search units,
DAC curves, transfer requirements,
reference level
for monitoring discontinuities, method of
demonstrating penetration, levels for evaluating and recording
indications, and acceptance standards.
(3) DPC MT Procedure NDE-25 was also reviewed for technical content
relative
to:
examination method, use of color contrast
particles, surface preparation,
surface temperature, particle
suspension, viewing conditions, examination directions and
overlap, prod spacing, prod magnetizing current, and acceptance
criteria.
(4) DPC PT Procedure NDE-35 was also reviewed for technical content
relative to:
method consistent with ASME code, specification of
brand names of penetrant materials, specification of limits for
sulfur and total halogens for materials, pre-examination surface
preparation,
minimum drying time following surface cleaning,
4
penetrant
application
and
time,
temperature
requirements, solvent removal, method of surface drying, type of
developer and method of application, examination technique,
technique for evaluation, acceptance standards,
and requalifi
cation requirements.
(5) B&W Eddy Current Procedure ISI-418 and DPC procedures NDE-700
and NDE-703 were reviewed for technical content relative to:
multichannel
examination
unit,
multichannel
examination
indication
equipment
is specified,
maximum
examination
sensitivity, material permeability, method of examination,
method of calibration and calibration sequence, and acceptance
criteria.
(6) The inspector reviewed the visual examination Procedures QCP-13
and QCL-14 to determine whether they contained
sufficient
instructions to assure that the following parameters were
specified and controlled within the limits permitted by the
applicable code,
standard,
or any additional
specification
requirement; method -
direct visual,
remote visual
or
translucent
visual;
application
-
testing,
fabrication procedure, visual examination of welds, leak
testing, etc.; how visual examination is to be performed, type
of surface condition available; method or tool
for surface
preparation, if
any; whether direct or remote viewing is used;
special illumination, instruments, or equipment to be used, if
any; sequence of performing examination,
when applicable; data
to be tabulated, if
any; acceptance criteria is specified and
consistent with the applicable code section or controlling
specification; and report form completion.
b. Observation of Work and Work Activities Unit 2 (73753)
The inspector observed work activities and reviewed certification
records of equipment, materials, and NDE personnel which had been and
will be utilized during the required ISI examinations during this
outage.
The Observations and reviews conducted by the inspector
are documented below.
(1) Ultrasonic (UT) Examination
(a) The inspector observed the in-process ultrasonic examinations
indicated below, including instrument calibration activities.
The observations were compared with the applicable procedures
and the Code in the following areas:
availability of and
compliance with approved Nondestructive Examination (NDE)
procedure; use of knowledgeable NDE personnel; use of NDE
personnel qualified to the proper level; type of apparatus
used; extent of coverage of weldment; calibration requirements;
search units; beam angles; DAC curves; reference level for
5
monitoring
discontinuities;
method
of demonstrating
limits
of
evaluating
and
recording
indications;
recording
significant
indications;
and,
acceptance limits.
Item No.
Weld No.
B05.050.006
2-PD-B1-2
B05.050.006A
2-PD-B1-2
B09.012.025
2-PD-B1-53LO
B09.012.026'
2-PD-B1-53LI
(b) The following listed ultrasonic equipment and materials
certification records were reviewed:
Ultrasonic Instrument
Manufacturer/Model
Serial No.
Panametrics/EPOCH 2002
12089
Ultrasonic transducers - E15769, H26705, M18425
Ultrasonic Calibration Blocks - 40350 & 40397
Ultrasonic Couplant-Ultragel Batch No. 8551
(2) Liquid Penetrant (PT) Examination
(a) The inspector observed the in-process liquid penetrant
examination indicated below. The observation was compared
with the applicable procedures and the Code in the following
area;
specified method,
penetrant materials identified;
penetrant materials analyzed for halogens and sulfur;
acceptable pre-examination surface; drying time; method of
penetrant application; penetration time; surface temperature;
solvent removal; dry surface prior to developing; type of
developer; examination technique; evaluation technique; and
reporting of examination results.
Item No.
Description
Weld No.
B09.021.039
B-1 Letdown Line
2-51A-35-1-20
(b) The inspector reviewed the below listed liquid penetrant
materials certification records to ascertain if the sulfur
and halogen content of the material was within acceptable
content limits.
6
Materials
Batch Number
84H015
Cleaner/Remover
85M056, 86HO30, 87CO48
Developer
85HO29, 85C055
(3) Magnetic Particle (MT) Examination
'(a) The inspector reviewed documentation indicating that a lift
test had been performed on
Nos.
OCQA-200 and OCQA-88,
using a ten pound steel plate.
The
lift tests were performed satisfactorily.
(b) The inspector reviewed material certification records for
magnetic particles with batch numbers 84K005 and 870062.
(4) Eddy Current (EC) Examination of Steam Generator (SG) Tubes
ISI activities during this outage included the eddy current
examination of tubes in "A" & "B" SGs.
Data acquisition and
primary data analysis were being performed by B&W.
The approved
B&W procedure ISI-418 and related references are the governing
documents.
(a) Examination
was being performed with a multi-frequency
technique and utilized the computerized MIZ-18 EC
Examination System to analyze tube integrity.
Discussions
with the licensee disclosed that as of March 11, 1988 there
had been 9500 tubes in SG-A probed with 32 tubes required
to be plugged. In SG-B, 9500 tubes had been probed with 13
required to be plugged.
(b) During the observation of the examination activities, the
inspector observed, by remote T.V.
camera,
the probing of
the tubes listed below.
This data was being collected
using the eddy-360 probe.
SG-B
Row
Tube No.
102
113
102
118
109
82
123
98
(c) Certification records for EC calibration standards 49154
and 49155 were reviewed for material type, correct
fabrication, and artificial flaw location/size.
7
(d)
The inspector observed the primary evaluation of the EC
examination data
for the
tubes listed below.
The
observations were accomplished to verify:
use of approved
procedure and equipment; use of knowledgeable examination
personnel with proper qualifications; proper recording of
examination
data;
proper
examination
frequencies;
calibration
standard
adequacy;
and
performance
of
calibration at proper intervals.
SG-A
SG-B
Row
Tube
Row
Tube
98
25
75
3
117
22
77
8
104
40
77
29
109
34
14
3
113
32
105
119
118
25
107
116
110
39
134
14
Note: These tubes were being
94
56
evaluated using the
eddy-360 data.
(e) The inspector observed the secondary evaluation of the EC
examination data for the tubes listed below.
These
evaluations were being conducted by DPC personnel with the
aid of the ADS analyzer. The data is first feed through
the ADS and this system highlights and stores any
indications that exceed the predetermined indication signal
voltage and/or indication signal phase angle parameters
that have been established.
Once the data is passed
through the ADS all indications noted by the system are
then manually reviewed for
final
determination and
disposition by a qualified EC data analyst.
All of the
data listed below is from SG-A.
Row
Tube
Row
Tube
Row
Tube
133
37
111
66
16
72
85
65
148
39
39
68
85
66
143
49
13
52
106
61
74
80
36
63
90
66
53
116
12
22
119
58
52
117
66
15
94
68
51
117
77
23
(5) The inspector reviewed the qualification documentation for the
below listed B&W and DPC examiners in the following areas:
employer's name;
person certified; activity qualified to
8
perform; effective period of certification;
signature of
employer's designated representative; basis used for certifica
tion; and annual visual acuity, color vision examination,
and
periodic recertification.
Method-Level
Company
Examiner
EC
WJP
II
-
-
-
-
JCW
II
-
-
-
-
GRL
-
-
-
-
I
GSM
-
-
-
-
II
JDM
-
-
-
-
I
-
-
-
-
II
-
-
-
-
II
JMB
-
-
-
-
III
ACG
-
-
-
-
IIA
MJK
-
-
-
-
IIA
JSS
-
-
-
-
IIA
TBA
-
-
-
-
I
GGB
II
-
II
-
IIA
GB
-
-
-
-
I
MWB
-
-
-
-
IIA
TMH
-
-
-
-
IIA
WKD
-
-
-
-
IIA
JWR
-
II
-
I
-
-
-
-
-
-
II
HAD
-
II
-
II
-
GJM
II
II
II
-
-
II
GLB
-
-
-
II
-
-
II
-
I
-
CGF
-
II
-
II
-
RPB
-
II
-
I
-
II
-
-
II
-
AEB
-
-
-
-
-
II
CFR
-
-
-
-
-
II
PWW
-
-
-
-
-
II
JNT
-
-
-
-
-
II
c.
Inservice Inspection, Data Review and Evaluation, Unit 2 (73755)
(1) Records of completed nondestructive examinations were selected
and reviewed to ascertain whether:
the method(s), technique and
extent of the examination complied with the ISI plan
and
applicable NDE procedures; findings were properly recorded and
evaluated by qualified personnel; programmatic deviations were
recorded as require; personnel,
instruments, calibration blocks
and
NDE materials (penetrants,
couplants) were designated.
Records selected for this review are listed below.
9
ISI Item No.
Item/Weld No.
Method
B05.050.006B
805.051.008
B07.070.012
Studs (B7) Nuts (2H)
B09.011.080A
B09.011.101A
B09.011.211A
2-51A-30-01
B09.012.025A
B09.021.051
2-51A-145-01
809.040.004
2-50-129-13A
C05.011.041
2-53B-19.2-100
COS.021.052A
2-03-20WG91-H
C05.021.053A
2-03-18.2-35
C05.021.206A
2-03-67-14
C03.040.006
2-01A-R3
C05.011.555
2-03A-13-01
809.011.211
2-51A-30-01
E04.001.001
809.011.101
002.020.005
2-O1A-DE042
002.020.057
2-03A-0800
F1.03.129
- 2-03A-SR21
F1.03.148
- 2-03A-1420
F1.03.316
2-03A-H93
- These
items were found to be deficient. Work order requests
were issued to correct the deficiencies.. The inspector reviewed
Work Order Requests 52646G and 52650G.
(2) The inspector selected for review EC examination data results
from tubing which had been analyzed. This review was conducted
in order to assess the severity of tubing degradation and to
determine where the majority of the degradation was occurring
along the tube length. The tubes selected for review are listed
below:
SG-A
SG-B
Row
Tube
Row
Tube
14
8
25
4
66
15
63
128
75
7
75
20
75
8
76
102
77
3
77
3
96
127
77
17
101
123
114
4
108
115
118
52
108
118
113
5
10
110
115
64
4
113
113
65
5
137
3
73
45
81
15
78
16
82
124
78
116
107
105
78
117
140
69
126
78
136
40
126
79
145
2
141
18
126
11
75
3
77
8
77
29
(3) The below listed radiographic film was reviewed to determine if
radiographic quality was in accordance with the applicable
procedure and Code requirements, and to specifically verify the
following:
penetrameter type, size, and placement; penetrameter
sensitivity;
film
density and
density variation;
film
identification; film quality; and weld coverage.
Item No.
Weld No.
View
B12.010.002
276-1, 1-282, 288-294
282-288, 36-48, 60-72,
144-156, 192-204
C05.021.053
2-03-18.2-35
0-1, 2-3, 3-4, 4-5
005.021.206
2-03A-67-14
0-1, 1-2, 5-0
005.021.202
2-03A-10-61
1-2, 2-3, 4-5
C05.021.117
2-01A-5.4-36
1-2, 2-3, 3-4, 5-0
C05.021.062
2-03-18.1-03
0-1, 1-2, 2-3, 4-5
The inspector reviewed the examination records for the above
listed welds to determine compliance with procedure requirements
for examination records and to determine if disposition of the
welds radiographed was in compliance with the applicable Code and
specification requirements.
(4) The inspector compared current examination results with randomly
selected previous examination results.
No discrepancies were
noted but in some cases, the EC results reported in the August
1986 examination and the current examination did differ.
A
computer review indicated that all tubes inspected during August
1986 were re-examined during this outage and the differences were
attributed to a more conservative reporting criteria during the
current outage.
Within the areas inspected, no violations or deviations were identified.
6. Acronyms
ADS -
Automated Data System
ASME -
American Society of Mechanical Engineers
B&W -
Babcock and Wilcox
DAC -
Distance Amplitude Curve
DPC -
Duke Power Company
DRP -
Demonstration Power Reactor
EC
-
Eddy Current
-
Inservice Inspection
-
Magnetic Particle
NDE -
NRC -
Nuclear Regulatory Commission
OTSG -
Once Through Steam Generator
-
-
Quality Assurance
-
Radiography
-
T.V. -
Television
-
Ultrasonic
-
Visual