IR 05000566/1979013
| ML19262A013 | |
| Person / Time | |
|---|---|
| Site: | Yellow Creek  |
| Issue date: | 09/18/1979 |
| From: | Cantrell F, Gouge M NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19262A014 | List: |
| References | |
| 50-56-79-13, 50-566-79-13, NUDOCS 7910260138 | |
| Download: ML19262A013 (6) | |
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UNITED STATES
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NUCLEAR REGULATORY COMMISSION
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REGION 11
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101 MARtETTA ST., N.W., SUITE 3100
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ATLANTA, GEORGIA 303o3 Report Nos. 50-566/79-13 and 50-567/79-13
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Licensee: Tennessee Valley Authority 500A Chestnut Street Tower II Chattanooga, Tennessee 37401 Facility Name: Yellow Creek Nuclear Plant, Units I and 2 Docket Nos. 50-566 and 50-567 License Nos. CPPR-172 and CPPR-173 Inspection at Yellow Creek Site near Iuka, Mississippi Inspector:
Id h$M 9//6/79 M. J. Gouge
Date Signed Approved by:
[d [Oh 9/dB/79 F. S. Cantrell, Section Chief, RCES Branch Date Signed
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SUMMARY Inspection on September 4-7, 1979 Areas Inspected This routine, unannounced inspection involved 24 inspector-hours onsite in the areas of QA records, QA audits, containment welding, IE Bulletin followup and followup on a licensee identified item.
Results Of the areas inspected, no items of noncompliance or deviations were identified.
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DETAILS
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1.
Persons Contacted Licensee Employees
- H. M. Price, Project Manager L. S. Cox, Construction Engineer S. G. Carr, Assistant Construction Engineer (PE)
- C. G. Wages, Assistant Construction Engineer (QC)
- J. N. Holladay, Supervisor, Project QA Unit
- R. G. Delay, Supervisor, Civil QC Unit
- M. F. Stakley, Supervisor, Welding QC Unit J. D. Shanlever, Supervisor, Material Services Unit
- S. E. Alge, Supervisor, DCU E. W. McGuire, General Labor Foreman G. B. Alexander, Civil QC Unit D. P. Reynolds, Civil QC Unit
- C. M. Freeman, Civil QC Unit
- S. P. Watson, DCU J. B. Nelson, Project QA Unit J. C. Adams, Assistant Construction Superintendent Other licensee employees contacted included various construction craftsmen, technicians, and office personnel.
Other Organizations Chicago Bridge and Iron Company L. Savage, QA Technician
- Attended exit interview 2.
Exit Interview The inspection scope and findings were summarized on September 7,1979, with those persons indicated in Paragraph I above.
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Licensee Action on Previous Inspection Findings Not inspected.
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Unresolved Items Unresolved items were not identified during this inspection.
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Independent Inspection a.
Quality Control Investigation Report (QCIR)/Nonconformance Report (NCR) System (Units 1 and 2)
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The master QCIR log maintained by the Document Control Unit was reviewed for content and accuracy in accordance with Construction Engineering
Procedure (CEP) 15.01. Completed (cleared) QCIR's up to and including QCIR 12301 were reviewed for acceptance disposition. Site originated NCR's 001 through 031 were reviewed for conformance to CEP 15.03. The QCIR and NCR systems were found to be implemented and functioning in accordance with CEP 15.01 and CEP 15.03, respectively.
No items of noncompliance or deviations were identified.
b.
Quality Assurance (QA) Audits (Units 1 and 2)
The following audits conducted by the site QA unit were examined by the project inspector for completeness, deficiencies found, corrective action taken and implementation in accordance with the licensee's procedures QASP 7.1 and CEP 18.01:
Audit No.
Subject YC-G-79-11 Work Packages YC-C-79-06 Concrete Placement and Curin.
YC-L-79-02 Receipt Inspection - Concrete Materials The above audits were found to be conducted and documented in an objective manner.
No items of nonconpliance or deviations were identified.
6.
Containment Vessel Welding Program (Units 1 and 2)
Steel Structures and Supports - Welding Procedure Specifications and a.
Quality Assurance Procedures Chicago Bridge and Iron Company (CBI) is the contractor responsible for fabrication of the spherical steel containment vessels. Fabrication will be monitored by the CBI QA program as described in the CBI QA Manual for ASME Section III Products, Issue 8.
Fabrication, installation, erection, inspection and testing of the containment vessel will be in.
accordance with Subsections NA and NE of Section III of the ASME Code, 1974 edition, with Summer 1976 addenda. The inspector reviewed the contractor's QA program in the following areas:
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(1) organizational structures
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(2) QA audits
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incorporation of quality requirements into procedures, drawings and specifications (4) inspection and work procedures
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(5) control of materials and processes (6) corrective action procedures (7) document control (8) test and test equipment control (9) quality record control The contractor's Weldhg Procedure Specifications (WPS) E7018 and EH-14 (Twin)/860 0.D., were reviewed to ensure that they had been prepared, qualified, certified and distributed in accordance with CBI procedures. The above WPS's were also reviewed in detail to ensure that they were qualified in accordance with Section IX of the ASME Code and that the supporting Procedure Qaulification Records (PQR)
were adequate.
The PQR's and WPS's reviewed listed all essential required by Section IX of the ASME code.
The PQR's variables as adequately documented all tests required by the ASME code and had been certified by CBI and the licensee. Revisions to WPS EH-14(Twin)/860 0.D., were in accordance with CBI procedure.
No items of noncompliance or deviations were identified.
b.
Steel Structures and Supports - Welding Material Control The Region II inspector reviewed the CBI program for control of welding materials. Areas inspected were as follows:
(1) procedures for purcpacing welding materials (2) procedures for receiving, storing, distributing and handling of welding materials (3) welding material purchasing and receiving records for the following heat numbers to determine conformance with specifications:
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(a) 401H0961 (7018)
(b) 0479008 (Tapco powdered metal)
(c) 036057 (EH-14 wire)
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(d) 412E7191 (7018)
(e) 422E3371 (7018)
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(f) 432E3951 (7018)
(g) 422E5861 (7018)
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(4) identification of welding materials (5) storage and distribution of welding materials (6) handling of welding materials after issue No items of noncompliance or deviations were identified.
c.
Steel Structures and Supports - Observations of Welding Activities Within Containment The Region II inspector observed in process welding on two welds. The welding of seam Al of assembly A16 using the automatic submerged arc welding process EH-14 (twin)/860 0.D., was inspected. The seam results from the alignment of two large one and one half inch vessel plates on a tilting platform designed to properly orient the spherical plates to the weld geometry. The welding of penetration 45A1 (TVA X39) to a completed 3 plate assembly using the manual shielded metal are process E7018 was also observed.
Areas inspected on both welds included preparation of surfaces to be welded, fitup and alignment of component parts, weld joint geometry, application of preheat, control of interpass temperature, proper range of voltage and current, calibration of voltmeters and ampmeters and general condition of welding equipment.
Welding was conducted in accordance with the applicable WPS. CBI is using a " notebook system" in lieu of a traveler to document weld status, identify welders, document application of preheat and inter-pass temperature, and identify inspection hold points. Data from this notebook maintained by CBI site QA personnel is transferred to permanent records on site and used with weld maps to document completed welds.
No items of noncompliance or deviations were identified.
d.
Steel Structures and Support - Welder Qualification The Region II insp*ctor reviewed the qualification records for four welders. The Record of Performance Quglification Test for each welder conformed to applicable code requirements and had been maintained current by continuous welding and/or requalification. The contractor's system for maintaining a continuous record of qualification status to ensure qualified welders is adequate. The welders observed conducting the welds identified in paragrpah 6.c above were qualified to the
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applicable WPS for the positions welded.
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No items of noncompliance or deviatici ; were identified.
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7.
Inspection and Enforcement Bulletins (IEBs) (Units 1 and 2)
the T_tcensee has received and reviewed IEBs through IEB 79-21 at the site.
Tre project manager and construction engineer review all I
'pplicability and coordinate a response if needed with corpor,EBs ' r site ate design and licensing personnel. The following IEBs are not applicable to the site or require no action (issued for information only):
79-05C 79-06C 79-16 79-17 79-18 79-19 79-21 The bulletins listed above are closed. The bulletins listed below required action by the licensee and their status is indicated as follows:
(Closed) IEB 79-07: Seismic Stress Analysis of Safety Related Piping. The licensee's final response dated May 31, 1979, has been reviewed by Region II and IE:HQ. The licensee's method of seismic stress analysis of safety related piping was correct and all actions specified by the bulletin have been completed. This item is closed.
(Closed) IEB 79-11: Faulty Overcurrent Trip Device in Circuit Breakers for Engineered Safety Systems. The licensee's response dated July 20, 1979, stated that none of the subject breakers with faulty overcurrent trip devices have been used or are planned for use at Yellow Creek Nuclear Plant. This item is closed.
8.
Licensee Identified Item (Units 1 and 2)
TVA has reported the following item in compliance with 10 CFR 50.55(e).
The inspector reviewed the item listed below and the supporting documenta-tion and discussed the item with responsible licensee staff during the inspection.
(0 pen) Item 566-567/79-1r ^1: Rebar Not Bending in Accordance with Specifi-cations. On August 3,1979, TVA informed Region II of this reportable item
__i.dentified as NCR YC-023.
The item involved site bending oC partially embedded rebar without approval of the Design Project engineering staff as required by procedure. TVA stated in an interim report dated September 4, 1979 that a subsequent report will be submitted by November 23, 1979.
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