ML20033D044
| ML20033D044 | |
| Person / Time | |
|---|---|
| Site: | Satsop |
| Issue date: | 11/24/1981 |
| From: | Leddick R WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| To: | Faulkenberry B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, G3-81-2783, GO3-81-2783, NUDOCS 8112040624 | |
| Download: ML20033D044 (1) | |
Text
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'T Docket Nos. 50-508/509 So.55(e) RepqrJggdD sin Washington Public Power Supply System y
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Box 1223 Elma, Washington 98541 (206)482-4428T! KUV 2 7 DI13 5l 6
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November 24, 1981 p
G03-81-2783 U. S. Nuclear Regulatory Commission, Region V M
Office of Inspection and Enforcement Q'[' }/ h'
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1450 Maria Lane, Suite 210 g
Walnut Creek, California 94596-5368 2
DEC3 1981 >-
Attention:
Mr. B. H. Faulkenberry 9-u.s pucuA1 &KMAT
Chief, Reactor Construction Projects Branch 5**"
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' p' i t Gentlemen:
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Subject:
PROJECT N05. 3 AND 5 DOCKET NUMBERS 50-508 AND 50-509 INTERIM REPORT OF POTENTIAL 10CFR50.55(e)
SOUTH STEAM GENERATOR BEARING PLATES, UNIT 3 (D/N #038)
Reference:
Supply System Record of Telecon, J. A. Puzauskas to Bob Dodds/ Dennis Haist, dated October 19, 1981.
Attached is an Interim Report for the potential 10CFR50.55(e) concern-ing surface finish of Unit 3 Steam Generator No. 2 bearing plates.
A Final Report will be provided by January 8, 1982.
Should you have any questions or desire further information, please centact me directly.
Very truly yours, 2
/
R. S. Leddick Program Director, WNP-3/5 cc:
J. Adams - NESCO-WO/A D. Smithpeter - BPA-WO/A Ebasco - New York-WO/A WNP-3/5 Files - Richland-WO/A EZ7 s
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.yt WASHINGTON PUBLIC POWER SUPPLY SYSTEM WPPSS NUCLEAR PROJECT NOS. 3 AND 5 INTERIM REPORT 10CFR50.55(e) - D/N #038 UNIT 3 STEAM GENERATOR SLIDING BASE BEARING PLATE SURFACE FINISH DEFICIENCY November 17, 1981
INTRODUCTION Steam Generator No. 2 on the south side of Unit Na 3 was set in place during the weekend of August 21-22, 1981. Bearing plates on the gril-lage under the sliding base were installed August 21, 1981. The bear-ing plates (4 per generator) were fabricated and supplied by Chicago Bridge & Iron per Contract 3240-113. Design specifications require a 125 rms finish on the plates. The installing contractor, Joint Venture (MK/ESI/ LORD), Contract 3240-224, sent the plates to Bingham-Willamette Company in Portland for final machining and finishing. Bingham-Willamette performed the machining and provided a Certificate of Compliance to the i
requirements of the Purchase Order; however, certification of surface finish was not provided. The Joint Venture received, inspected, acce,.ed and subsequently installed the plates in the as-received condition.
F-sonnel who performed the document review during receiving inspection failed to recognize that certification of surface finish was not pro-vided by Bingham-Willamette.
One week after Generator placement, an NCR was initiated to identify the documentation deficiencies. The NCR noted that the surface finish of the plates was indeterminate.
Since this could affect the performance of primary systems, the deter-mination of surface finish was essential and the problem was considered significant.
The NRC was notified on September 20, 1981, in accordance with the pro-visions of 10CFR50.55(e).
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A.
P0TENTIAL PROBLEMS AND REFERENCE TO THE NOTIFICATION The potential problem of having a surface finish that did not meet the specified 125 rms was identified by the NCR. The NCR also identified the discrepancy between the Purchase Order Certificate of Compliance and Field Receiving Inspection Reports. Conflicts between the documents are summarized as follows:
e The Contractor's Purchase Order to Bingham-Willamette called for a 125 rms finish.
o An Audit Report prepared by the installing contractor's audi-tor noted that the surface finish varied from 250 to 600 rms.
This was a much coarser finish than required.
e The Certificate of Compliance furnished by Bingham-Willamette excluded the surface finish requirements.
e The Contractor's field receiving inspection accepted the sur-face finish as furnished.
e The bearing plates iere installed in the as-received condition.
Tim NCR was initiated a week after the actual setting of the Steam Generator. Since the bearing plates are inaccessible for examin-ation, an overall evaluation of the potential problem areas of ven-dor inspection process, inspection expertise and technical conse-quences is required.
1.
Vendor Inspection Process The inspection process has been established in accordance with Quality Assurance requirements for Nuclear Projects.
In this case, sub-vendor auditing, receiving inspections and post installation inspections were in order. The sub-vendor shop surveillance audit report displayed thoroughness in its audit inspection.
The receiving inspection is considered the area of potential deficiency. The NCR notes that the receiving personnel were made aware of the deficient surface finish prior to receiving the material in the field. Also, the NCR notes that, even though the plates were inspected by a Joint Venture QC Receiv-ing Inspector, a Joint Venture QC Receiving Supervisor and Joint Venture Engineering, they wera accepted in the as-received condi-tion. The receiving inspection report contains errors in the reference documents and thus casts doubt on the validity of the inspection itself.
2.
Personnel Qualification During the course of Ebasco Engineering's investigation, inspec-tion personnel qualifications were reviewed to evaluate the Joint
r-iM 61 A.
POTENTIAL PROBLEMS AND REFERENCE TO THE NOTIFICATION (Continued) 2.
Personnel Qualification (Continued)
Venture contention that the plates met the required finish.
Sub-vendor Bingham-Willamette's shcp was visited and their procedure for determining the metal finish was witnessed by Supply System and Ebasco Engineering. The Joint Venture aud-i itor's qualifications were found to be satisfactory; however, j
the Joint Venture QC receiving inspector's qualifications were found questionable.
3.
Technical Consequences Combustion Engineering performed an analysis of their steam l
supply system based on bear 1ng plates with a 125 rms finish.
CE has not performed a system analysis with bearing plates exhibiting a different surface finish.
It is CE's contention that a re-analysis would be extremely tille consuming and ex-pensive.
l B.
APPROACH TO THE RESOLUTION OF THE PROBLEM An extensive investigation by Ebasco Engineering has been initiated to review the vendor inspection process. A number of meetings were conducted between Ebasco, Joint Venture and the Supply System.
Responsible personnel from the contractor's Construction, Quality Control and Engineering Departments expressed their opinions at the meetings. Their contention was that the receiving inspection-was proper and the plates had the required finish of 125 rms.
Even though Ebasco Engineering was satisfied with Bingham-Willamette's inspection methods and certification, they were convinced that irre-gularities existed in various statements and documentation records.
Ebasco dispositioned the NCR as follows:
The installed sliding base bearing plates are to be removed and replaced with new plates that meet the specified require-ments.
Immediately after removcl, the contractor is to place the removed sliding base bearing plates into Ebasco's control in a location specified by Ebasco.
C.
STATUS OF PROPOSED RESOLUTION i
A decision was made to lift the Steam Generator No. 2 and replace the bearing plates. The lift was made during the week of Novem-ber 9, 1981 and four new bearing plates with the required finish were installed.
I
r INTERNAL DISTRIBUTION THIS LETTER SATISFIES COMMITMENT NO.
SITE FILES THis LETTER (DOES)(DOES NOTl ESTA8LISH A NEW COMMITMENT.
ROUTING WPPSS CORRESPONDENCE NO.
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COMMITMENT CONTROL
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GC S0RENSEN 443 NC KAUFMAN
/ November 23, 1981 AJ MOORE MA MCHUGH
- G03-81-2778 Mr. A. A. Tuzes CE Power Systems Combustion Engineering, Inc.
1000 Prospect Hill Road Windsor Connecticut 06095 l
Subject:
SUPPLY SYSTEM NUCLEAR PROJECTS 3 AND 5 DISTRIBUTION OF CESSAR-F AMENDMENTS l
Reference:
Letter, CEEB2-81-124, A.A.TuzestoD.L.up
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9 ear Mr. Tuzes:
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The referenced letter provided a distrib + on ist os c ies of CESSAR-F and amendments thereto.
In order to assl a. ' pr t-con rol and distribution of amendments to CESSAR-F, it is necessa e'ise your distribution list.
Mr. M. K. Yates, of Ebasc,,w York, should continue to receive five copies of all CESSAR-F me a.ents. The nine copies being sent to the Supply System personn 1 d now be sent to the WNP-3/5 Licensing. Depart-ment which will c7ntr01 i r tion within the Supply System.
1 1
i If you ha an q.stio s - garding these changes, please feel free to contac
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Very truly yours, K. W. Cook WNP-3/5 Licensing Project Manager cc: D. Smithpeter, BPA J. A. Adams, PP&L WNP-3/5 Files, Richland H. Canale, New York Elma, New York - Elma AUTHOR: KW COOK:dj yV/u [bl/-
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F R SIGNATURE OF:
U UN SECTION FOR APPROVAL OF APPROV ED DATE WP487 7,,.-g - r, v.-- n 3..
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D.
REASONS WHY THE FINAL REPORT WILL BE DELAYED The inspection of the removed plates has not been completed and results have not been evaluated.
It is presently anticipated that Ebasco will submit a final re-port to the Supply System December 15, 1981. Upon review and con-currence, the Supply System will provide a final report to Region V by January 8, 1982.