IR 05000237/1981001
| ML17193B244 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 02/12/1981 |
| From: | Danielson D, Key W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML17193B243 | List: |
| References | |
| 50-237-81-01, 50-237-81-1, NUDOCS 8103260051 | |
| Download: ML17193B244 (7) | |
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U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT
REGION III
Report No. 50-237/81-01 Docket No. 50-237 Licensee:
Commonwealth Edison Company P. 0. Box 767 Chicago, IL 60690 Facility Name:
Dre~den Station, Unit 2 Inspection At:
Dresden site, Morris, Illinois Inspection Conducted:
January 6-7, 14-15, 22, 1981
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Inspector:
W. J. Key
,~J~
Approved By:
D. H. Danielson, Chief Engineering Support Section 2 Inspection Summary License No. DPR-19 Inspection on January 6-7, 14-15, and 22, 1981 (Report No. 50-237/81-01)
Areas Inspected:
Inservice inspection (ISI) program review, procedure review, observation of activities, and review of examination documentation; followup of Licensee Event Reports (LERs) and Bulletin This inspection involved a total of 38 onsite inspector-hours by one NRC inspecto Results:
No items of noncompliance or deviations were identifie (!)0~\\
- DETAILS Persons Contacted Commonwealth Edison Company (CECo)
- D. J. Scott, Station Superintendent faJ. Brunner, Technical Staff Supervisor
- J. Gates, Technical Staff Engineer Lambert McGill and Thomas (LMT)
E. L. Thomas, Site Supervisor Hartford Steam Boiler Insurance (Hartford)
J. Mislevy, ANI Inspector S. Felton, ANI Inspector
- Denotes those present at the exit intervie Licensee Action on IE Bulletins IE Bulletin No. 80-13, Cracking in Core Spray Spargers, IE Bulletin No. 80-13, item 1, required all BWR facilities with operating license to perform visual examinations of the core spray spargers and segments of piping between the inlet nozzle and vessel shroud at the next scheduled outag On January 15, 1981, the inspector witnessed the visual examination of Unit 2 core spray spargers and pipe segments using a remote underwater TV camer No adverse conditions or abnormalities were detecte This examination is to be per-formed during each refueling outage, until further notice; however, for this outage it is considered close Functional or Program Areas Examined Inservice Inspection (ISI) Program Review A review of the ISI program was made by the inspector for this, the last
- inspection of the first 10 year interval for Unit 2 for conformance to ASME Code Section XI, 1974 Edition including Summer 1975 Addenda require-ment No items of noncompliance or deviations were identifie.
Inservice Inspection (ISI) Procedure Review The following ISI procedures were reviewed by the inspector for conform-ance to ASME Code, regulatory requirements and applicable revisions.
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NDT-D-1, Revision 2, Procedure for Non-Aqueous Red Dye Liquid Penetrant Examination for Reactor Vessel Safe-End NDT-D-2, Revision, Procedure For Non-Aqueous Red Dye Liquid Penetrant Examination NDT-V-1, Revision 3, Visual Examination of Nuclear Reactor Coolant System Compoment NDT-C-2, Revision 12, Ultrasonic Inspection of Pipe Weld NDT-C-5, Revision 9, Ultrasonic Inspection of Reactor Vessel Weld NDT-C-10, Revision 1, Ultrasonic Inspection of the Inner Radius of the Nozzle-to-Vessel Junctio NDT-C-12, Revision 1, Ultrasonic Inspection of the Reacto NDT-C-14, Revision 6, Ultrasonic Inspection of Pressure Retaining Bolting Two Inches or Greater in Diamete NDT-C-15, Revision 3, Ultrasonic Inspection of Ferri tic Safe-Ends to Nozzle Weld NDT-C-16, Revision 4, Ultrasonic Inspection of Dissimilar Weld NDT-C-:-24, Revision 3, Ultrasonic Inspection of Feedwater Nozzel Inner Radi NDT-C-25, Revision 1, Ultrasonic Inspection of Feedwater Nozzle Inner Bor NDT-C-27, Revision 0, Ultrasonic Inspection of De-Clad Feedwater Nozzle Inner Bore and Radius of Boiling Water Reactor No items of noncompliance or deviations were identifie.
Material and Personnel Certification Review The following examination personnel certifications were reviewed for conformance to the applicable ASHE Code and Regulatory requirement LMT Personnel UT PT MT E. L. Thomas III III III D. Christina Trainee L. R. Davis I
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D. A. Hall I
J. E. Hill III II R. Kellerhall II II II E. L. Lake II M. E. Mace I
II R. w. Pechacek II II II w. M. Tighe I
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LMT Equipment The following LMT instruments, materials, and certifications were examined for calibration requirement Ultrasonic Instruments Nortec Model 1310, S/N-128/146 Sonic Model FTS-MKl, S/N-752311 Sonic Model FTS-MKl, S/N-755111 Nortec Model 131, S/N-371 Nortec Model 1310, S/N-311 Gulton Tr 722d Recorder, S/N-8082502 Gould Brush Recorder 222, S/N-064 Gould Brush Recorder 222, S/N-311 Ultrasonic Rampas Block, S/N-4, S/N-14, and S/N-17 Surface.Temperature Thermometers, Model-573F, S/N-231, S/N-256, S/N-240, S/N-238, S/N-253, and S/N-23 Transducers Size Fre9uenc1 Aero tech
. 25" 5MHz Hari \\" x \\"
2.25MHz Hari \\" x \\"
2.25MHz Hari \\" x \\"
2.25MHz Haris. (Daul)
\\" x \\"
1.5 MHz Haris. (Daul)
\\" x \\"
1.5 MHz Hari \\" x l" 2.25MHz Hari \\" x \\"
5.0 MHz Hari \\" x \\"
2.25MHz Nortec l" x l" 2.25MHz Aer \\"
2.25MHz Hari \\"
.5MHZ Aer \\"
2.25MHz Norte \\" x l" 2.25MHz Liquid Penetrant Materials Cleaner-SKC-S, Batch No. 49K072
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LC2 P377, P3108 P8120 P921 Ql032 Ql265 R3162 R9167 Rl2200 1386 015963 013570 015450 983
- Developer-SKD-S, Batch No. 80A091 Penetrant-SKI-HF/S, Batch No. 6Cl67 Ultrasonic Calibration Blocks, Commonwealth Edison Company S/N-99915-SS S/N-99914-SS S/N-99960-SS S/N-99980-CS S/N-99988-CS S/N-99958-SS S/N-99978-CS S/N-99955-SS No items of noncompliance or deviations were identifie.
Observation of Examination Activities The inspector observed examinations being performed by LMT personnel on the following items:
System Reactor Redrculating Piping, Line-2-0203B.,.4", Bypass loop-"B" Welds Nos. SPM-45-24, SPM-45-14, SPM-45-15, SPM-45-1 During ultrasonic examination of weld SPM-45-17, an indication measuring approximately 1 1/8" long was reporte Further investigation by the licensee Level III examiner identified this as root geometer The inspector requested that the radiograph of this weld be retrieved and reviewed it. At the location reported, the radiograph shows excessive root reinforcement for the length recorded during the UT examinatio System Reactor Recirculating Piping, Line-2-0203A-4", Loop-"A", By-Pass Weld Nos. SPM-45-25, SPM-45-8, SPM-45-System Feedwater nozzles, UT&PT examinations Nos. N4A, N4B, Inner Boore, Inner Radius, and Safe-End to Pipe Weld No items of noncompliance or deviations were identifie.
Review of Examination Documentation Ultrasonic Calibration Records Record No. C-021, UT Instrument, Nortec 131D, S/N-311, Transducer Sonic, S/N-P8120,
~" x ~", -2. 25 MHz, Calibration Block-Pipe Segment S/N-99911, UT Procedure - UT-24, Revision O, Rampas Block -S/N-1 Record No. C-022, UT Instrument-Nortec, 131D-S/N 311, Gould Recorder 222, S/N-095, Transducer, H. Sonic, S/N-Rl2200, \\" X \\" shear, 2.25 MHz Calibration Blocks, Pipe Segment, S/N-99957, Rampas Block - S/N-14
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Record No. C-027, UT Instrument, Master Slave, Nortec S/N-128/146, Gould Recorder, 222, S/N-095, Teach FM2300S Recorder, S/N-32, Calibra-tion Block Pipe Segment S/N-99979, Transducer H. Sonic, S/N-Ql032,
~" x ~", l.5MH Ultrasonic Examination Reports Report No. R-088, Calibration Record No. C-022, S13fe-End "A" Jet Pump, Instrument-Nortec, 131D, S/N-311, Gould Recorder-222, S/N-095, Transducer H. Sonic, S/N-Rl2200, \\" X \\"-45°F, 2.25 MHz, Couplant-KHHV, Calibration Block-Pipe Segment-S/N-9995 One indication reported as geometry 100% dac. +2d Report No. R-104, Calibration Record No. C-027, Safe-End to Nozzle N2E Recirculation Instrument Nortec 131D, S/N-128, Transducer Sonic ~"x ~", S/N Q 1032, 1.5 MHz, Brush Recorder 222, S/N-095, Cali-bration Block, S/N-99979, 3 indications, reported as geometr Report No. R-105, Calibration Record No. C-027, Safe-End to Nozzle N2G~ Equipment as recorded in Report No. R-10 Report No. R-107, Calibration No. C-027, Safe-End to Nozzle N2J, Equipment as recorded in Report No. R-10 Liquid Penetrant and Visual Record Review Data Sheet No. R-098, Component-N2A Nozzle to Safe-End and Safe-End to Pipe Weld Data Sheet No. R-093 and R~093R (After removal of surface indication).
Component-N2E Safe-End to Nozzle and Safe-End to Pipe Weld Data Sheet No. R-090, Component-N2G Safe-End to Nozzle and Safe-End to Pipe Weld Data Sheet No. R-072, Component-N20A, Jet Pump Instrument Safe-End to Nozzle Wel No items of noncompliance or deviations were identifie.
Followup of Licensee Event Reports (LERs)
LER, 80-33, \\" thru wall leak in 3A CCWS Pump Casin On August 5, 1980, thickness measurements were taken on the following pump Pump No. 59A, thickness range 0.80" to 0.98"; Pump No. 59B, thickness range 1. O" to 1. 2"; Pump No. 59C, thickness range 1. O" to 1. 2"; Pump No. 59D, thickness range 1.0" to 1.2".
This item is close LER 80-29, Leak from crack in weld on an instrument line of RX Water Cleanup System main heade During a short outage on December 5, 1980,
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r this weld was removed and rewelded with the proper gap being maintaine Work was accomplished on request No. Dl039 This item is close LER 80-04-031-1, Jef pump failure, Unit Following failure of jet pump No. 13 on February 2, 1980, ultrasonic examination of all Unit jet pump beams was performed by General Electric personnel in accordance with G.E. procedure No. TP-508-0654, Revision "U.T.-Examination, Jet Pump Beam, BWR's 4 and Later."
Crack indications were identified in six (6) additional hold down beams and were replaced with new beam The metallurigcal examination results are contained in G.E. report NEDC-24256 Class III, "Evaluation of Jet Pump Hold Down Beam Failure at Dresden Unit 3." Revisions to DOS-202, "Jet Pump Operation and Degradation,", were made in accordance with the recommendations of section 7.3 of the G.E. Repor On January 14, 1981, all jet pump beam assemblies of Unit 2, were ultrasonically examined by.G.E. in accordance with their procedur Beam assemblies No. 9 and No. 20 were reported to have crack like indications, and will be replaced during this outag This LER is considered close Exit Interview The inspector met with licensee representatives (Denoted under Persons Contacted) at the conclusion of the inspection on January 22, 198 The inspector summarized the scope and findings of the inspectio