IR 05000295/1979023
| ML19260C016 | |
| Person / Time | |
|---|---|
| Site: | Zion File:ZionSolutions icon.png |
| Issue date: | 11/05/1979 |
| From: | Hayes D, Naidu K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19260C012 | List: |
| References | |
| 50-295-79-23, 50-304-79-21, NUDOCS 7912180236 | |
| Download: ML19260C016 (5) | |
Text
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U.S. NUCLEAR REGULATORY COMMISSION
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OFFICE OF INSPECTION AND ENFORCEMENT
REGION III
Report No. 50-295/79-23; 50-304/79-21 Docket No. 50-295; 50-304 License No. DPR-39; DPR-48 Licensee:
Commonwealth Edison Company Post Office Box 767 Chicago, IL 60690 Facility Name: ' Zion Nuclear Power Station, Units 1 and 2 Inspection At:
Leckenby Company, Seattle, Washington and the Commonwealth Edison Company Corporate Office, Chicago, Il Inspection Conducted: July 2, 1979 at Leckenby; September 25, 1979 at Commonwealth Edison Company Corporate Office O
// f/77 Inspector:
K. R. Naidu
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Approved By:
D.
. Ha h
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Engineering Support Section 1
Inspection on July 2, 1979 at Leckenby and September 25, 1979 at Commonwealth Edison Company (CECO) Corporate Office (Report No. 50-295/79-23; 50-304/79-21)
Areas Inspected: Review procedures and observe manufacturing activities at Leckenby Company, Seattle, Washington; review audits and surveillances per-formed at Leckenby by CECO at the latter's offices.
The inspection involved eight inspection hours on site by one NRC inspector.
Results: No items of noncompliance or deviations were identified.
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1609 329 7 912180 A3b
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DETAILS
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Persons Contacted Leckenby Company Seattle, Washington A. Kunzler, Vice President
- P. D. Moore, Quality Assurance Manager
- R. B. Pittsenburger, Chief Engineer
- J. R. Sullivan, Project Engineer Commonwealth Edison Company (CECO)
- G. Marcus, Director, Quality Assurance C. Richardson, Engineer, SNED L. S. Rafner, Engineer, ShTD T. Tram, Project Engineer, Z'on Units 1 and 2 i
- Denotes those who attended the exit interview on July 2, 1979.
- Denotes those who attended the exit interview on September 25, 1979.
Functional or Program Areas Inspected 1.
Introduction
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CECO requested ammendments to Facility Operating Licenses DPR-39 and DPR-48 for Zion Nuclear Power Plants Units 1 and 2 to increase the spent fuel storage capacity from the present 868 to 2112 fuel assem-blies. The increased spent fuel capacity would be achieved by installing new high density Spent Fuel Storage Racks (SFSR) with a decreased spacing between fuel storage cavities.
The proposed new spent fuel racks are modular stainless steel (SS) structures with individual storage cavities to provide a nominal center-to-center (CTC) spacing of 10.35 inches.
(The existing ones have 21 inches CTC). Boral sheets (boron carbide in an aluminum matri) are encap-sulated in each SS wall of individual storage cavities.
Nuclear Re actor Regulation (NRR) issued the Safety Evaluation Report and Environmental Impact Appraisal dated March 29, 1979 authorizing CECO to increase the spent fuel storage capacity.
Nuclear Services Coporation, Campbell, California prepared the licensing report for the Spent Fuel Rack Modification encompassing the Nuclear Analysis, Structural Analysis, Evaluation of the Pool Structures, seismic evaluation, the Thermohydraulic Analysis and the Radiochemical Analysis.
1609 330-2-
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2.
Objectives To ascertain whether CECO performed audits and surveillances to a.
verify that Leckenby implemented their QA program during fabri-cation of the high density Spent Fuel Storage Racks.
b.
Objective Accomplished by:
(1) Selectively reviewing procedures and observing manufacturing activities at Leckenby.
(2) Selectively reviewing audits and surveillances performed by CECO on Leckenby.
3.
Review of Procedures The inspector reviewed the specification and drawings available at I-eckenby and determined the following:
The design input requirements were prepared by Nuclear Services a.
Corporation, California (NSC) and were approved by CECO.
b.
The Spent Fuel Tubes were fabricated by Brooks and Perkins, Michigan and delivered to Leckenby for installation in the SFSR.
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Sections III, V and IX of the 1977 ASME Code have been invoked c.
for the design, Nondestructive Examination and welding requirements.
d.
Nominal center-to-center spacing of the modular stainless steel structures containing the Boral r capsulated Spent Fuel tubes is given as 10.35 inches in the design drawings.
The documentation, which will be reviewed during receipt inspection e.
at site for the SFSRs is ennumerated in a letter from NSC to CECO #NSC-COM-0219-0220-9-L121 dated May 25, 1979 and includes as-built drawings.
No items of noncompliance were identified.
4.
Observation of Work Activities The inspector observed the following activities in progress and determined them acceptable.
The size of the welds on the SFSR structures was inspected and a.
determined to conform to the respective drawings.
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b.
Review of one weld procedure specification utilized for welding indicates that it was qualified to AStiE Code Section III; the
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procedure qualification record was acceptable.
Storage of the materials was observed to be acceptable; identifi-c.
cation of the material was acceptable.
d.
Control of welding material including weldrod was acceptable.
Documentation on the process and inspection results were being e.
maintained on 2 current status.
No items of noncompliance were identified.
5.
Review of Vendor Surveillances Performed by CECO The inspector reviewed the documentation available at Ceco Corporate office relative to the fabrication of SFSRs.
CECO contracted NSC to prepare the design specification including seismic qualification evaluation and perform vendor surveillance functions during the fabrication of the SFSR.
The inspector reviewed the NSC quality assurance audit performed a.
on Leckenby on April 9 and 10, 1979.
Corrective action taken to resolve the open items identified during this audit was verified and determined acceptable during a subsequent audit on May 23, 1979.
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b.
The inspector reviewed an audit, #QAM 22-79-15, performed by CECO QA un Leckenby Company during April 24 and 25, 1979. The audit checklist which consisted of 41 questions, was approved by the CECO Director of Quality Assurance for Engineering and Construction and was intended to examine Leckenby work activities to verify compliance to their Quality Assurance program Revision 3 dated April 2, 1979. The audit was comprehensive and covered the following attributes:
(1) Organization.
(2) Review system to independently verify documents including changes to drawings and manufacturing orders (MO).
(3) Control of incoming material including identification of nonconforming material.
(4) Control of tools and calibration of measuring tools and standards.
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(5) Welding, qualification of weldors, NDE activities including
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use of certified material.
(6) Veri ication of corrective action taken.
The following four audit findings were identified by CECO during this audit.
(7) Inadequate identification of material relative to its status, whether it was acceptable or nonconforming.
(8)
Inadequate documentation on training of inspectors.
(9) Annual audit was not performed in 1978.
(10) One welder's log was not maintained current for three months.
In addition to the above, the following obser-vations were identified.
(11) Certificates of Conformances were signed prior to reviewing documentation packages.
(12) Acceptance or rejection was not identified on subtier surveillance / audit reports.
CECO performed a surveillance un Leckenby Company on June 11 and 12, 1979 to verify corrective action taken on the audit findings and obser-
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vations and determined that all items were satisfactorily resolved.
No items of noncompliance were identified.
Exit Interview The inspector met with the Leckenby staff and Ceco personnel at the con-clusion of the inspection on July 2 and September 25, 1979 rerpectively and summarized the purpose and findings of the inspection.
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