IR 05000454/1980007
| ML19323G239 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 04/21/1980 |
| From: | Danielson D, Lee E K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19323G236 | List: |
| References | |
| 50-454-80-07, 50-454-80-7, NUDOCS 8006020016 | |
| Download: ML19323G239 (4) | |
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U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT
REGION III
Report No. 50-454/80-07 License No. CPPR-130 Docket No. 50-454 Licensee: Commonwealth Edison Company,
P. O. Box 767
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Chicago, IL 60690 Facility Name:
Byron Nuclear Generating Station Unit 1 Inspection At:
Byron Site, Byron, IL Inspection Conducted: April 8-10, 1980
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- /2//fc Inspector:
E. W. K. Lee
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Approved By:
D. H. Danielson, Chief
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Engineering Support Section 2 Inspection Summary Inspection of April 8-10, 1980 (Report No. 50-454/80-07).
Areas Inspected: Reactor coolant pressure boundary and safety related piping work activities, welding, and procedures. The inspection involved a total of 19 inspector-hours on site by one NRC inspector.
Results: No items of noncompliance or deviations were identified.
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80060200$f
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DETAILS Persons Contacted Principal Licensee Employees
- J. DeRosia, Field Engineer
- T. McIntire, Quality Assurance Supervisor
- G. Sorensen, Project Superintendent
- M. Stanish, Quality Assurance Engineer
- R. Tuetken, Lead Mechanical Engineer The inspector also contacted and interviewed other licensee and contractor personnel, including area superintendents and craftsmen.
- Denotes those present at the exit interview.
Functional or Program Areas Inspected 1.
Reactor Coolant Pressure Boundary Piping - Observation of Work and Work Activities The inspector observed the installed Safety Injection System line No. ISIO98A-10" between valve No. M01SI8808A-1 and the connection to the cold leg on isometric drawing No. SI-1 and the Residual Heat Removal System line No. 1RH01AB-12" between valves No. M01RH8702A-1 and No. M01RH8702B-2 on isometric drawing No. RH-8.
It was determined that the pipe runs were installed in accordance 4th the drawings.
No items of noncompliance or deviations were ~ientified.
2.
Reactor Coolant Pressure Boundary Piping - Visual Examination of Welds a.
Visual Examination The inspector visually examined the following completed welds:
(1) Safety Injection System Welds Nos. FW100, FW304, FW416, FW414, FW305, FW306, FW103, FW104, FW310, FW105, and FW145 on isometric drawing No. SI-1.
l (2) Residual Heat Removal System Welds Nos. FW53 thru FW60 on isometric drawing No. RH-8.
It was determined that (1) weld surface finish and appearance were accepiable and there was no evidence of wall thinning due to grinding; and (2) are strikes and weld spatter were not evident except on weld No. 105 and the base metal of pipe i
spool between welds No. FW414 and No. FW416 on isometric-2-l
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drawing No. SI-1.
b.
Review of Records The inspector reviewed weld data sheets for the following welds:
(1) Safety Injection System Welds Nos. 105, 416, 304, 305, 306, 103, 104, and 310 on isometric drawing No. SI-1.
(2) Residual Removal System Welds Nos. 53, 55, 56, 57, 59, and 61 on isometric drawing No. RH-8.
It was determined that (1) the records indicated specified inspections were completed, and (2) records are clear and legible.
No items of noncompliance or deviations were identified.
3.
Safety Related Piping - Observation of Welding Activities The inspector observed the following welding activities:
a.
Containment Spray System Weld No. 60 on isometric drawing No.
CS-8.
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b.
Residual Heat Removal System Weld No. 157 on isometric drawing No. RH-3-1.
c.
Safety Injection System Weld No. 385 on isometric drawing No.
SI-13-13.
d.
Boric Acid System Weld No. 403 on isometric drawing No. AB-18.
Safety Injection System Weld No. 451 on drawing No. H-FSK-39-1.
e.
It was determined that (1) work was conducted in accordance with traveller; (2) proper welding materials were used; (3) welding pro-
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cedure requirements were met; (4) work area was free of weld rod-stubs; (5) physical appearance was acceptable and (6) while observing welding on item e. above, the inspector noted the shop weld of the bellow to the pipe spool of the expansion joint in the valve contain-
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ment assembly I.D. No. 1RH01SA-36" (S/N D1-4815-N21359) is not flush-ed with the pipe spool. This item is considered unresolved pending a review of the design drawing of the weld.
(454/80-07-01).
No items of noncompliance or deviations were identified.
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4.
Safety Related Piping - Weld Heat Treatment
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a.
Review of Procedure The inspector reviewed the applicable welding procedures used in-3-
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welds stated in paragraph 3 of this report and determined that preheating and monitoring methods are specified and acceptable, b.
Observation of Preheating While observing welding activities for items stated in paragraph 3 of this report, the inspector determined that preheat met the welding procedure requirements.
No items of noncompliance or deviations were identified.
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Safety Related Piping - Welder Qualification a.
The inspector established that Hunter Corporation procedure for welder qualification has not been revised since the last review (IE Inspection Reports No. 454/79-16 and No. 455/79-16).
b.
The inspector randomly selected the qualification record of six welders who performed welding on welds stated in paragraph 3 of this report.
It was determined that the above documents met the requirements of ASME B&PV Code Section IX.
s No items of noncompliance or deviations were identified.
6.
Reactor Coolant Pressure Boundary Piping - Observation of NDE Work Activities The inspector observed liquid penetrant examination of Safety Injection System Weld No. FW428 on isometric drawing No. SI-8-4.
It was determined that (1) surface condition was acceptable, (2) procedure requirements were met, and (3) personnel were properly qualified.
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. Unresolved items disclosed during the inspection are discussed in paragraph 3.
Exit Interview The inspector met with licensee representatives (denoted under Persons Contacted) at the conclusion of the inspection on April 8-10, 1980.
The inspector summarized the purpose and findings of the inspection.
The licensee acknowledged the findings reported herein. The licensee stated that they are also concerned about arc strikes and weld spatters and special attention is paid to those unsatisfactory surface conditions.
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