IR 05000374/1981006
| ML20003G096 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 03/13/1981 |
| From: | Danielson D, Key W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML20003G093 | List: |
| References | |
| 50-374-81-06, 50-374-81-6, NUDOCS 8104280248 | |
| Download: ML20003G096 (5) | |
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U.S. NUCLEAR r.EGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT
REGION III
Report No. 50-374/81-06 Docket No. 50-374 License-No. CPPR-100 Licensee: Commonwealth Edison Company Post Office Box 767 Chicago, IL 60690
~ Facility Name:
LaSalle County Station, Unit 2 Inspection At:
LaSalle site, Marseilles, Illinois Inspection Con, duct February 25-26, 1981
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Inspector: W
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Approved By:
D. H. Danielson, Chief d
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Materials and Processes-Section Inspection Summary Inspection on February 25-26, 1981 (Report No. 50-374/81-06)
Areas Inspected: Review of welding and related procedures for installation of reactor coolant pressure boundary piping; observation of installation and welding of reactor coolant pressure boundary piping; review of material and personnel certifications; review of shop fabrication and field installation documentation; review of shop fabrication radiographs. The inspection in-volved a total of 17 onsite inspector-hours by one NRC inspector.
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l Results: No items of noncompliance or deviations were identified.
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DETAILS-Persons Contacted Commonwealth Edison Company (CECO)
- L. J. Burke, Project Superintendent
- B. J. McAndrews Mechanical Supervisor
- D. J. Skoza, Field Engineer
- G. E. Groth, Field Engineer
- E. R. Netzel, QA Engineer Morrison Construction Company (MCCO)
- M. Wherry, QC Supervisor
- K. Kranz, Welding Superintendent
- D. Kanakares, QC Inspector E. Bouie, Foreman H. Stroud, Rod Room Attendant
- Denotes those in attendance at the entrtace and exit meetitgs.
Functional or Program Areas Examined 1.
Observation of Activities The inspector observed 'the following weld joints being fit-up, fusing of the insert, and welding of one filler pass.
Weld Joint No. 2270, Recirculation System loop "B".
24" replacement pipe spool, S/N 6901-1P, heat No. 27557. Welded to 90* elbow identified as G.E. Pc.5, 2RR01AB. Welding Procedure P8-18LS, SMAW and P8-19LS, GTAW.
Weld Joint No. W-RH-4574-18", Component No. 1 2RH-14A, item 22 pipe welded to component No. 2, valve 2E12-F021. Welding Procedure F1-11LS, Revision 7 and P1-8LS, Revision 6 Insert, E70S-2, heat No. 659A315.
The following partially completed welds were visually examined during the inspection.
Weld No. 633M, Recirculation System loop "A", 90* spool to nozzle safe end at vessel 90* azimuth. Component No. 1, SNK-1141-00'e, pipe.
Component No. 2, N2 nozzle inlet.
Weld No. 629M, Recirculation System loop "A",
120* azimuth.
Component No. 1, pipe spool IEN-K-1140-P003 to component No. 2, G.E. Pc. No. 38, 2RR01CD.
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t Weld No. 630M, Recirculation System loop "A" 150' azimuth.
Component No.~ 1, SN-K-1139-P002, (pipe). Component No. 2, 2RR01CE (pipe G.E. Pc.39).
Weld No. 635M, Recirculation System loop "A" 150 azimuth. _ Component No. 1, SN-K-1139-P002 (pipe). Component No. 2, N2 nozzle inlet.
During the examination of the above weld joints, the following was observed.
All weld joint preparations were in accordance with procedure and
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drawing requirements.
Shielding, purge gas, and dams were in accordance with welding and
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installation procedures.
Surfaces to be welded met all cleanliness requirements.
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Quality control inspectors performed periodic surveillance
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examinations of work in progress.
Weld travelers were at the work location.
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No items of noncompliance or deviations were identified.
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Material and Personnel Certification Review The following MCC0 welder certifications, material, storage, and issue facilities were examined:
Welders Stamp No.
L. Avila J-26 J. Arias M-7 J. R. Stank B-32 i
Weld Issue Room at Elevation 740'
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Oven No. 14, E308, E308L material Oven No. 19, E309-16, 502 Welding Materials and Certifications
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Manufacturer Morrison I.D. No.
Heat No.
Material McKay TK L2037 E316L Sandvik IL 10313-1 E3162-1 l
Sandvik IR 10433-3 E3162-1 McKay R0 02239 E308L McKay GN 04708 E308L-1 No items of noncompliance or deviations were identified.
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3.
Documentation Review Documentation on Recirculation System replacement spools supplied by General Electric (GE) to Specification No. 22A6417 were reviewed.
GE Pc. Mark 112D2706P002 112D2706P003 112D2706P004 112D2706P005 112D2706P006 112D2706P007 112D2706P008 112D2706P009 112D2706P0010 112D2706P0011 All assemblies were manufactured from the same heat of material, heat No. 69133 rolled and welded plate.
Replacement spool, Pc. Mark No. 73/57435, 24" X 1.140" wall X 2'~1/4" long Heat No. 27657, SA240 Type 316 rolled and welded plate.
During documentation review, it was noted that the spools welded to each end of the 90* elbow making up the complete assembly were not identified with individual serial numbers, as many as four spools had the same number. Further, radiographs of the longitudinal welded seams could not be identified to the spools.
This is being identified as an unresolved matter pending further information from G.E.
(374/81-06-01)
The following weld joint travelers were examined along with the welds:
Traveler No. RR-T-30 Weld No. 2270, spool to elbow Traveler No. RR-T-28
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Weld No's. 633M, spool to safe-end 629M, pipe to pipe 630M, pipe to pipe 635M, pipe to safe-end Traveler No. RH-T-1006 Weld No. RH-4574-18" No items of noncompliance or deviations were identified.
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Unresolved Items Unresolved items are matters about which more information is required in order to' ascertain whether.they are acceptable items, items _of noncompliance, or deviations. An unresolved item disclosed during this inspection is dis-
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cussed in paragraph 3.
Exit Interview The inspector met with licensee representatives (denoted under Persons Contacted) on February 26, 1981. 'The inspector. summarized the scope and findings of the inspection and discussed the unresolved item.
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