ML20062J456
| ML20062J456 | |
| Person / Time | |
|---|---|
| Issue date: | 07/13/1982 |
| From: | Barnes I, Roberts H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | |
| Shared Package | |
| ML20062J414 | List: |
| References | |
| REF-QA-99900751 NUDOCS 8208160372 | |
| Download: ML20062J456 (5) | |
Text
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ORGANIZATION:
RICHMOND ENGINEERING COMPANY, INC.
RICHMOND, VIRGINIA REPORT INSPECTION INSPECTION N0:
99900751/82-01 DATE(S) 6/1-3/82 ON-SITE HOURS:
20 CORRESPONDENCE ADDRESS:
Richmond Engineering Company, Inc.
ATTN:
Mr. F. G. Louthan, Jr.
President P. O. Box 25189 Richmond, VA 23260 ORGANIZATION CONTACT:
C. H. Massen1ill, Corporate QA/QC Manager TELEPHONE NUMBER:
(804) 644-2611 i
PRINCIPAL PRODUCT:
Pressure Vessels NUCLEAR INDUSTRY ACTIVITY: Not identified ASSIGNED INSPECTOR:
Dam 7 - /3- # 2_,
fE
- r H. W. Roberds, Reactive and Component Program Date Section,(R& CPS)
OTHER INSPECTOR (S):
7 - / 3-92.
APPROVED BY:
/a w Date I. Barnes, Chief, R& CPS INSPECTION BASES AND SCOPE:
A.
BASES:
B.
SCOPE:
This inspection was made as the result of:
(1) a 10 CFR Part bO.55(e) report by Duke Power Company relative to unacceptable quality of radiographs of welds for refueling water storage tanks supplied to Catawba Nuclear Station, Units 1 and 2; and (2) the identification of a potential construction deficiency (_CDR) by Georgia Power Company of incorrect coating applied to the ID of diesel fuel oil day tanks supplied to Voatle Unit 2.
PLANT SITE APPLICABILITY:
Unacceptable radiographic quality:
50-413 and 50-414, and incorrect coating of diesel fuel oil day tanks: 50-425.
8208160372 820729 PDR GA999 EECRIEN 99900751 PDR
'0RGANIZATION :. RICHMOND ENGINEERING COMPANY, INC.
RICHMOND, VIRGINIA REPORT INSPECTION N0:
99900751/82-01 RESULTS:
PAGE 2 of 4 A.
VIOLATIONS:
None B.
NONCONFORMANCES:
None C.
UNRESOLVED ITEMS:
None D.
STATUS OF PREVIOUS INSPECTION FINDINGS:
1.
(Closed) Nonconformance (81-01):
A hold point had been signed off on weld joint 3 although final acceptance (radiography) was not performed until I week later.
It was verfied that documentation has been revised to include signoff of radiographic examination on the operational worksheet, and the revised documentation had been sent to customers.
2.
(Closed) Nonconformance (81-01):
Review of ultrasonic thickness measurements showed that tanks contained heads with thickness below drawing requirements.
It was verified that the applicable drawings had been revised to reflect the minimum design thickness of the heads, and Section 2 of the QA Manual had been revised to require the development of fabrication drawings which reflect the as-constructed condition.
3.
(Closed) Nonconformance (81-01): A 3/16-inch electrode was used to weld joint nos.1, 6, 9,11, and 13 rather than the required combination of 1/8-inch and 5/32-inch electrodes.
It was verified that a nonconformance report had been initiated, and the applicable Weld Procedure Specification had been requalified using a 3/16 electrode.
A formal procedure, ES-170, had been issued to define responsibilities for issuance of electrodes in accordance with the applicable weld procedure.
4.
(Closed) Nonconformance (81-01):
A certified material test report for applicable E7018 electrode was not included in the record package for gas decay tank no. 2320.50.
l l
ORGANIZATION: RICHMOND ENGINEERING COMPANY, INC.
RICHMOND, VIRGINIA REPORT INSPECTION N0:
99900751/82-01 RESULTS:
PAGE 3 of 4 It was verified that the applicable material test report was forwarded to the customer to include the test report in his documentation record package, and Section 16 of the QA Manual had been revised to require the Quality Assurance Coordinator to review the final documentation record package for completeness.
5.
(Closed) Nonconformance (81-01):
Various lengths of leg beam to plate fillet welds were found to be undersized on gas decay tanks at WPPSS site.
It was verified that calculations had been performed to indicate specific minimum fillet weld size by location, and that drawings had been revised and approved by the customer to reflect the minimum size of fillet welds. A procedure had been initiated and implemented for formal inprocess inspection for monitoring weld configuration and size.
E.
OTHER FINDINGS OR COMMENTS:
1.
Part 50.55(e) Report - The quality of radiographs of welds for refueling water storage tanks (RWST) fabricated by Richmond Engi-neering Company (RECO) for Catawba Nuclear Station, Units 1 and 2, does not meet the requirements of Section III of the ASME Code.
a.
As a result of a review of radiographs by Duke Power Company of welds on Catawba Unit 2 RWST, it was disclosed that the majority of radiographs did not meet the quality requirements g
of the ASME Code.
The RWST was erected in the field by REC 0, and nondestructive examination was subcontracted to Industrial NDT, Inc. (INDT). The radiographs were interpreted by two INDT Level III examiners, certified by ASNT written examination, and accepted as meeting all the requirements of Section III of the ASME Code.
Out of 605 radiographs, 465 were rejected by Duke Power Company and REC 0 radiographic interpreters for being under the required density of 2.0.
The Unit 2 RWST was reradiographed, and 10 radiographs showed indications of unacceptable slag inclusions.
REC 0 repaired the welds and rehydrotested the tank.
The rework was completed on January 29, 1982.
b.
The Catawba Unit 1 RWST was erected in the field by RECO, and nondestructive examination was subcontracted to Frochling and Robertson Testing Laboratory (F&R).
Radiography was performed by F&R and the radiographs were interpreted and accepted by a F&R Level III examiner, certified by ASNT written examination.
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