IR 05000483/1987011
| ML20215K343 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 05/04/1987 |
| From: | Danielson D, David Jones NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML20215K326 | List: |
| References | |
| 50-483-87-11, NUDOCS 8705110161 | |
| Download: ML20215K343 (7) | |
Text
-
.
.
U.S. NUCLEAR REGULATORY COMMISSION
REGION III
Report No. 50-483/87011(DRS)
Docket No. 50-483 License No. NPF-30 Licensee: The Union Electric Company Post Office Box 149 St. Louis, MO 63166 Facility Name: Callaway Plant, Unit 1
Inspection At: Callaway Site, Callaway County, Missouri
,
Inspection Conducted: April 14-16 and 21-23, 1987 Inspector: D Jones d-f-87 Date
&
w
,/1 Approved By:
D. H. Danielson, Chief JNf7 Materials and Processes Section Date Inspection Summary Inspection on April 14-16 and 21-23,1987 (Report flo. 50-483/87011(DRS))
Areas Inspected: Routineunannouncedinspectionofinserviceinspection(ISI)
work activities, steam generator sludge lancing, and training and qualification effectiveness. (73501, 73057, 73753, 73755, 41400)
Results: No violations or deviations were identified.
i 8705110161 870504 POR ADOCK 05000483 G
...
.. _
-
-
.
,
.
-
.
_
.. _ -
.
.
.
DETAILS 1.
Persons Contacted Union Electric Company (UE)
- J. Blosser, Plant Manager
- R. Huber, Supervisor Engineer, Performance and ISI
- D. Stepanovic, ISI Engineer T. Pettus, System Engineer (Steam Generators)
R. Myatt, QA Engineer T. Moser, Supervisor Engineer Nuclear Energy Services (NES)
A. Pennanen, Site Supervisor Westinghouse (W)
A. Immel, Eddy Current Coordinator B. Stock, Lead Analyst Hartford Steam Boiler Inspection and Insurance Company H. Potter, Authorized Nuclear Inservice Inspector- (ANII)
Nuclear Regulatory Commission
- C. Brown, Senior Resident Inspector B. Little, Resident Inspector The inspector also contacted and interviewed other licensee and contractor employees.
'
- Denotes those present at the final exit interview on April 23, 1987.
2.
Inservice Inspection a.
General This is a maintenance and fuel conservation outage. UE contracted i
with Westinghouse LW) to perform the steam generator eddy current inspection and with Nuclear Energy Services (NES) for the balance of the ISI except for selected visual examinations which were performed by UE QA. The ISI was conducted in accordance with the ASME Boiler and Pressure Vessel Code,Section XI, 1980 Edition, Winter 1981 Addenda.
Steam generators B and C were eddy current inspected and the following 5 tubes were administratively plugged:
<
l
__
..
. _.
,
.. -
- - -
-.
.
.-
.
.
.
.
.
Steam Generator B Steam Generator C
Row Column Row Column
$
11
102
18
104
108-Although the tube indications did not exceed Technical Specification limits, it was decided by UE to plug them, since the growth rates of the indications could not be projected, due to the lack of historic data.
b.
Program / Procedures Review The NRC inspector reviewed the following program / procedures:
UE, Nondestructive Examination Inservice Inspection Program, EDP-ZZ-01003, Revision 4.
UE, Qualification of Quality Control Personnel For Visual Examinations to ASME Boiler and Pressure Vessel Code, QCP-ZZ-01004, Revision 3.
UE, Certification of Quality Control Personnel, QCP-ZZ-01001, Revision 5.
UE, Qualification of Quality Control Personnel for NDE Activities, No. QCP-ZZ-01003, Revision 4.
UE, Steam Generator Tubesheet Marking, No. ETP-ZZ-01303, Revision 1, (W, MRS 2.2.2 Gen-12, Revision 2).
UE, Post-Activity Sign-Off For Area Cleanliness, No. ETP-ZZ-01304, Revision 1 (W, MRS 2.2.2 Gen-6, Revision 7).
UE, S/G Primary Nozzle Dam Installation / Removal Procedure, No. ETP-ZZ-01310, Revision 0, (W, SE-SG-83-084, Revision 5).
UE, Digital Multi-Frequency Eddy Current Inspection of Preservice and Inservice Heat Exchanger Tubing, No. ETP-ZZ-01300, Revision 2 (W, MRC 2.4.2, Gen-28, Revision 2).
UE, Mechanical Plugging of Steam Generator Tubes, No.. ETP-ZZ-01301, Revision 0, (W, MRS 2.3.2, Gen-13, Revision 7).
UE, SH-10W Operating Drocedure No. ETP-ZZ-01302, Revision 1, (W, MRS 2.4.2, Gen-30, Revision 1).
UE, Visual Examination To ASME VT-1, No. QCP-ZZ-05040, Revision 4.
UE, Visual Examination to AMSE VT-2, No. QCP-ZZ-05041, Revision'4.
-
-
-
.-
.-
-
-
--
.
-
..
.. -.
=
-..
-
=_.
.
..-
-
-
.
.
T
.
NES, Quality Assurance Program Plan for Inservice Inspections, j
No. 80A2929, Revision 10.
i
.
NES, Inservice Inspection Program Plan General Reference Text, No. 83A0977, Revision 1.
p NES, Inservice Inspection Quality Assurance Inspection Manual, No. 80A9021, Revision 8.
'
NES, Ultrasonic Examination Procedure General Requirements,
No.-83A1005, Revision 2.
NES, Ultrasonic Examination Procedure For Austenitic Piping Welds,
No. 83A1006, Revision 2.
NES, Ultrasonic Examination Procedure For Ferritic Piping Welds, No. 83A1007, Revision 1.
NES, Liquid Penetrant Examination, Procedure No. 83A1009, Revision 4.
f NES, Procedure For Magnetic Particle Examination, No. 83A1010, i
Revision 5.
NES, Ultrasonic Examination Procedure For Pressure Welds,_
.
No. 83A1011, Revision 1.
NES, Ultrasonic Examination Procedure for Fitting To Fitting Welds, No. 83A1012, Revision 3.
.
No violations or deviations were identified, c.
NDE Personnel Certifications and Observation of War k Activities The NRC inspector reviewed NDE personnel certifications in i-accordance with SNT-TC-1A.
The NRC inspector also_ observed the work and had discussions with personnel during the following examinations:-
.
Ultrasonic examination and post examination calibration check of main feedwater system loop 1 weld numbers 2-AE-04-F006 and
2-AE-04-F007, in accordance with NES procedure no. 83A1007, Revision 1, " Ultrasonic Examination Procedure For Ferritic Piping Welds."
Ultrasonic examination and post examination calibration check of main steam loop 1, weld numbers 2-AB-01-S006-M, and 2-AB-01-S006-S, in accordance with NES procedure no. 83A1007, Revision 1, I
" Ultrasonic Examination Procedure for Ferritic Piping Welds."
!
!
!
t
!
-
_.,
.
_
_
_
__
_
_. _ _. -,
..
_
-. _., -
-
.
.
Ultrasonic examination of main steam atmospheric relief valve weld numbers 2-AB-01-F078 and 2-AB-01-F011 in accordance with NES procedure no. 83A1007, revision 1, " Ultrasonic Examination Procedure for Ferritic Piping Welds."
Eddy current calibration and examination in accordance with UE procedure no. ETP-ZZ-01300, revision 2, " Digital Multi-Frequency Eddy Current Inspection of Preservice and Inservice Heat Exchanger Tubing" of the following tubes:
Steam Generator B Row Column Row Column
22
26
23
31
23
92
24
96
25
98
25
103
25
104
26
107
27
108
27
109 Steam Generator C Row Column Row Column
1
8
2
9
3
10
4
11
5
12
6
13
7
14 No violations or deviations were identified, d.
Material and Equipment Certification The NRC inspector reviewed the certification documents, relative to the following items:
Ultrasonic instruments, transducers, couplant, thermometers, calibration blocks Magnetic particle equipment and materials Liquid penetrant materials
-
-
-
- - -
-
.
..
-
- -
-
-
-
..
.
Eddy current calibration standards No violations or deviations were identified.
e.
Data Review The NRC inspector reviewed report documentation relative to the following:
Ultrasonic examinations
- Liquid penetration examinations Magnetic particle examinations Eddy current examinations Visual examinations No violations or deviations were identified.
3.
Steam Generator Sludge Lancing a.
General Tubesheet cleaning is performed to remove sludge deposits which have-accumulated on the secondary side of the tubesheet during plant operation.
It is accomplished by means of injecting high pressure water (1500-2000 PSI) between the columns of tubes on top of the tubesheet. Simultaneously, water at low pressure (approximately 150 PSI) is injected through one handhole directed around the periphery of the steam generator and removed from the opposite handhole along with the high pressure flow. The action of both-streams of water provides a constant high volume washing of the tubesheet to remove deposits dislodged by the high pressure flow.
The water is removed from the generator, filtered and returned to a j
system holding tank. The quantity (volume) of sludge removed from the steam generator is determined by the filter weighing method.
Sludge lancing was perfonned by Westinghouse on four steam
generators. The total wet weight of sludge removed was 45 pounds, b.
Review cf Procedure UE, Steam Generator Tubesheet Cleaning ETP-AE-03000, Revision 2, (W, SSS 2.2.2, Gen 7, Revision 4).
No violations or deviations were identified.
4.
Training and Qualification Effectiveness
_
An evaluation of training and qualification effectiveness was made during
,
the inspection. The evaluation included discussions with ISI personnel and observations of ISI personnel performance during work activities.
. -
-
-
--
_. _ _
_
_
..
_
_ _
__
~
.
.-
On occasions ISI personnel have been observed during discontinuity evaluation. Their performance during such evaluation demonstrated ability to identify and evaluate discontinuities, and is indicative of effective training. The ISI personnel appear to be knowledgeable of industry practices.
No violations or deviations were identified.
5.
Exit Interview The inspector met with the site representatives (denoted in persons contacted paragraph) at the conclusion of the inspection. The inspector
.
summarized the scope and findings of the inspection noted in this
'
report. The inspector also discussed the likely informational content of the inspection report with~ regard to documents or processes reviewed by the inspector during the inspection. The licensee did not identify any such documents / processes as proprietary.
'
j.
.
I
7
., _ _. _.
_.
...
_
..
_,.