ML20088A040
| ML20088A040 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 03/30/1984 |
| From: | Tucker H DUKE POWER CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NUDOCS 8404100451 | |
| Download: ML20088A040 (2) | |
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DUKE Powen GOMPANY P.O.150x 33180 CHAHLOTTE, N.G. 28242 HALB. TUCKER renzerrows
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2"21 March 30,1984 Mr. James P.' 0'Reilly, Regional Administrator U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30303 Re:
Catawba Nuclear Station Unit 1 Docket No. 50-413
Dear Mr. O'Reilly:
Please find attached a supplement to Significant Deficiency Report No.
SD 413-414/83-16. This supplement describes corrective actions taken in regard to FSA mechanical snubbers which were shipped to Catawba Nuclear Station.
Very truly yours,
&k Hal B. Tucker LTP/php Attachment cc:
Director INP0 Records Center Office of Inspection and Enforcement Suite 1500
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U. S. Nuclear Regulatory Commission 1100 Circle 75 Parkway Washington, D. C. 20555 Atlanta, Georgia 30339 NRC Resident Inspector Mr. Robert Guild, Esq.
Catawba Nuclear Station Attorney-at-Law P. O. Box 12097 Palmetto Alliance Charleston, South Carolina 29412 21351 Devine Street Columbia, South Carolina 29205 8404100451 840330 PDR ADOCK 05000413 s
PDR OFFICIAL COPV 16 %
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JP0/HBT/LTP 1 Supplement.to Significant Deficiency Report No. SD 413-414/83-16
- March 30,1984 The Deficiency Report ' dated November 23, 1983, identified 8,500 mecha-nical snubbers as potentially having defective capstan springs.
ITT Grinnell records indicate that of the 8,500 mechanical snubbers, 187 were. shipped to Catawba Nuclear Station. Of the 187, 109 were Size 1 snubbers and 78 were Size 3 snubbers. We have reviewed our receiving records and confirmed that the snubbers in question were received at Catawba.
A complete search of the site has been conducted to locate the snubbers in question. A review of transfer requisitions revealed none of the subject snubbers were transferred to other Duke sites. It was also veri-fied that-none of the subject snubbers are currently with the vendor for repair. The results of the search are as follows:
Of the 109 Size 1 snubbers, 99 were located leaving 10 unaccounted
'for.
Of the 78 Size 3 snubbers, all have been accounted for.
The search included the warehouse and all installed supports that utilize Size 1 and 3 mechanical snubbers. The subject snubbers that were found installed have been removed and replaced. All of the subject snubbers, that were located, are stored in the warehouse NCI area awaiting repair arrangements - to be finalized. Therefore, ' none of the subject snubt ers are installed.
Since al~, of the subject snubbers could not be located, we are developing a program to prevent the installation of any subject snubbers. The appro-priate construction procedure will be revised to list all the serial numbers of the remaining subject snubbers. This list will be checked by the craftsman when he records the serial number, of Size 1 snubbers, on the appropriate process control. The appropriate M-51E (Support Inspec-tion Instructions) will also be revised to make it a requirement of the ' inspector to review this list when he/she verifies serial numbers during mechanical inspection. The QA-301A form (Final Review of Hanger Package) will be revised to make it a requirement to verify that all serialized components have a data report. A copy of NCI 17249, which documents this problem, will be attached to each affected data report.
When QA reviews each data report, they will at that time be able to determine if it is a serial number for one of the subject snubbers.
Full compliance will be achieved by April 16, 1984.
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