IR 05000249/1980006
| ML19323A995 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 03/18/1980 |
| From: | Danielson D, Key W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19323A987 | List: |
| References | |
| 50-249-80-06, 50-249-80-6, NUDOCS 8005090082 | |
| Download: ML19323A995 (8) | |
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- U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT
REGION III
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Report No. 50-249/80-06 Docket No. 50-249 License No. DPR-25 Licensee: Commonwealth Edison Company P.O. Box 767 Chicago, IL 60690 Facility Name: Dresden Nuclear Power Station, Unit 3 Inspection At: Dresden site, Morris, IL Inspection Conducted: February 21-22, 27-29, 1980 Y%
W Inspector:
W. J. Key 3'
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Approved By:
D. H. Danielson, Chief, 3 /I 6')fo Engineering Support Section 2 Inspection Summary Inspection on February 21-22, 27-29, 1980 (Report No. 50-249/80-06 Areas Inspected:
Inservice, NDE examination. Review of examination program, review of examination procedures, observation of examination activities, review of examination records. The inspection involved a total of 48 inspector-hours on site by one NRC inspector.
Results: No items of noncompliance or deviations were identified.
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DETAILS
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Persons Contacted Commonwealth Edison Company (CECO)
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- B. Stephenson, Plant Superintendent AR. Ragan, Operating Assistant Superintendent
- T. Hansesn, Technical Staff ISI Coordinator
- B. R. Shelton, Assistant Superintendent
- E. F. Wilmere, Quality Assurance Coordinator
- J. O. Parry, Radiation Chemical Supervisor
- S.
Badran, Technical Staff Assistant ISI Coordinator Conam Inspection Division (Conam)
B. J. Remus, Level II Inspector A. Dukhorn, Level II Inspector J. Handberg, Level I Inspector Hartford Steam Boiler Insurance Company J. Hislevey, Authorized Nuclear Inspector
- Denotes those present at the exit interview.
Functional or Program Areas Inspected I.
ISI Program Review The inspector reviewed the ISI program for this refueling outage that included welds in the following components and systems for examination.
a.
Reactor Pressure Vessel Head b.
Recirculation Inlet Nozzles c.
Main Steam Nozzles d.
Feedwater Nozzles e.
Control Rod Drive (CRD)
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Vessel Internals g.
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Clean up System i
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Recirculation Bypass Loops A and B i
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Examination Procedure Review
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The following Commonwealth Edison NDE procedures were reviewed for
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changes and revisions.
i a.
NDT-C-1 Completion of Ultrasonic Calibration Forms and Data Sheets J
b.
NDT-C-2 Ultrasonic Inspection of Pipe Welds c.
NDT-C-5 Ultrasonic Inspection of Reactor Vessel Welds d.
NDT-C-4 Ultrasonic Inspection of Internal Support Attachment Weld Areas on Piping e.
NDT-16 Ultrasonic Inspection of Dissimilar Metal Welds f.
NDT-C-15 Ultrasonic Inspection of Ferritic Safe-End to Nozzle Welds g.
NDT-C-11 Ultrasonic Inspection of Flange Legaments Between Threaded Bolt Holes h.
NDT-C-12 Ultrasonic Inspection of Reactor Vessel Head Welds i.
NDT-D-1 Procedure for Non-Aqueous Red Dye Liquid Penetrant Examination of Reactor Vessel Safe-Ends J.
NDT-D-2 Procedure for Non-Aqueous red Dye Liquid Penetrant Examination k.
Visual Examination of Nuclear Reactor Coolant System Components No items of noncompliance or deviations were identified.
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3.
Equipment and Personnel Certifications Equipment The following equipment and materials were examined and records reviewed.
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Ultrasonic Instruments
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Sperry U. J. Model 50B2012, S/N-10688-7 Krautkramer, USL-38, S/N-910200 Krautkramer USL-38, S/N-904385 Sonic MK-1, S/N-780302 Calibration Standards (UT)
Number Size Thickness 99971 12"
.687 99970 12"
.687 99981 14"
.638 99974(plate)
1" x 4" x 6" 1.093 Ultrasonic Transducers Serial Numbet Size Frequency 7374
.250" 2.25MHZ 90534
.5 x 1" 2.25MIIZ 7366
.500" 2.25MHZ 7364
.500" 2.25MHZ 800209
.250" 2.25MHZ 800206
.250" 2.25MHZ 800207
.250" 2.25MHZ 800215
.5 x 1" 2.25MHZ 800211 1.0" 2.25MHZ 800203
.750" 2.25MHZ 800204
.500" 2.25MHZ 800205
.500" 2.25MHZ 800208
.500" 2.25MHZ 800210
.250" 2.25MHZ Ultrasonic Couplant, Glycerol, Lot No. KHRS, Batch 501164-R-4-
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I Liquid Penetrant Materials Cleaner SKC-NF, Batch NO. 6C123, Magnafluc Penetrant SKL-KF/SK1-S, Batch No. 6C167, Magnaflux Developer SKD-S, Batch No. 79LO85, Magnaflux
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Magnetic Particle Equipment
Maguaflux Yoke, Model Y-6, type 115V-60HZ S/N-009 and S/N-008.
No items of noncompliance were identified.
Personnel Certification Personnel certification of the following Conam inspection division were reviewed.
Name Method and Level RT UT MT PT VT D. T. Fister III III III L. W. Galloway II II II II R. E. Redmond II II II M. A. Tobin I
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R. Guentensberg II P. H. Christensen II II II II J. Handberg I
M. J. Undesser II II II R. Wilson II II II II T. Bipes II II II B. J. Remus II II II II M. W. Sippel I
I II II II A. Sukhorn I
II II No items of noncompliance or deviations were identified.
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Observation of Activities The inspector observed the following examinations being performed by Conam inspection personnel.
a.
Ultrasonic examination of main steam nozzle N3A.
b.
Ultrasonic examination of jet pump instrumentation nozzle safe-end weld 10-2A.
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Liquid penetrant examination of SP/c nozzle N12.
It was determined that examination procedures were being followed.
No items of noncompliance or deviations were identified.
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Calibration and Examination Data Sheet Review The following calibration and examination data sheets were reviewed.
Calibration Sheets
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Sheet No. C-1 Feedwater nozzle mock-up UT Instrument-Sonic, MK-1, S/N-750304
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Couplant-Glycerol, Lot No. KHRS Transducer, Harrisonic, S/N-935 and 936, 1.0 MHZ Used on nozzles, H4A, H4B, N4C, and N4D b.
Sheet No. 1 CRD - System Standard No. 99958, Thickness,.337" Procedure - NDT-C-2, Revision 11 UT Instrument Sperry, UJ, S/N-10658-7 Transducer, 2.25 MHZ, S/N-800206 CRD No. 1 Weld No. 4KT
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4-7
4-7A
4-8 c.
Sheet No. 3 Core Spray Procedure, NDT-C-2, Revision 11 Standard, 99960, Thickness, 0.593" UT Instrument, Sonic MK-1, S/N-780303 Transducer, 2.25 MHZ, S/N-800204 d.
Sheet No. 9 Recirculation Bypass - Loop B Procedure - NDT-C-2, Revision 11 Standard - 99958, Thickness,.337" UT Instrument, Sperry, S/N-10658-7 Transducer, 2.25 MHZ, S/N-800206 Data Sheets, 22 through 30, Welds W1B through W9B e.
Sheet No. 12 Clean Up System Standard, 99955, Thickness,.500" Procedure, NDT-C-2 UT Instrument, Sperry UJ, S/N-10658-7 Transducer 2.25 MHZ, S/N-800204 Data Sheets, CL-1, 2, 3, 4, and 5 Welds 8K42, 43, 45, 46, 47, i
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Sheet No. 16-1 Reactor Pressure Vessel Head Procedure NDT-C-12, Revision 6 Standard 99978, Thickness, 4.006" UT Instrument - Sonic MK-1, S/N-780302 Data Sheets, No. RPVH, 1, 2, 3, 4
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Welds, Meridional Head to Flange Bottom 1/2 @ 180 Degrees Holes - 32 - 60 Bottom 1/2 @
0 Degrees Holes - 74 - 90
Bottom 1/2 @ 240 Degrees g.
Sheet No. 18 Safe-End to Nozzle Procedure."9T-C-16, Revision 3 Standard, 99911, Thickness 0.750" UT Instrument, Sonic MK-1, S/N-780303 Transducer, 2.25 MHZ, S/N-7364 Data Sheet R?VH-5 Weld N18B-SE-N h.
Sheet No. 19-1 Nozzle to Vessel Procedure, C-5, Revision 8 Standard, 99978, Thickness, 4.006" UT Instrument, Sonic MK-1, 780302 Transducer, 2.25 MHZ, S/N-800203 1.
Sheet No. 24 Feedwater Procedure, NDT-C-5, Revision 8 Standard, 99978. Thickness, 7.008" UT Instrument,..rautkramer, USL-38 S/N-910-200 Transducer, 2.25 MHZ, S/N-90534 Data Sheet FW-1 Weld NA Data Sheet Fw-2 Weld N4C j.
Sheet No. 28 Core Spray Procedure NDT-C-2, Revision 11 Standard 99960, Thickness,.593" UT Instrument, Sperry-UJ, S/N-10688-7 Transducer, 2.25 MHZ, S/N-800208 No items of noncompliance or deviations were identified.
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Data Sheets a.
Sheet No. V-1 Visual Examination, (Remote)
Vessel Internals No Recordable Indications (NRI)
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Sheet No. D-1 Nozzle N4A NRI c.
Sheet No. CRD-1 Reducer to Pipe 4"
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Weld 4K5 NRI
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d.
Sheet No. Recirc-10 Recirculation Bypass, Loop A Pipe to Elbow, Weld No. W10A e.
Sheet No. Recir-35 Recirculation Bypass Lop B Pipe to Elbow, Weld No. k'2B 2 - Indications one 50%, one 40%
Reviewed and Accepted f.
Sheet No. CL-5 Clean-up System Pipe to Elbow, Weld No. 8K-47 EI g.
Sheet No. CS-5 Core Spray System Elbow to Valve, Weld No. 10-9 NRI h.
Sheet No. CS-12 Core Spray System Pipe to Valve, Weld No. 10-35 2 Indications - one 50%, one 100%
Evaluated as ID and OD Geometry Approved by Licensee 1.
Sheet No. CS-14 Core Spray System Tee to Pipe, Weld No. 10-40 (2)
100% indications evaluated as ID and OD Geometry Approved by Licensee No items of noncompliance or deviations were identified.
Exit Interview The inspector met with licensee personnel (denoted in Persons Contacted)
on February 22 and 29, 1980. The scope and findings of the inspection were discussed.
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