ML20023D643
| ML20023D643 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 05/13/1983 |
| From: | Tucker H DUKE POWER CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, SD-413-83-07, SD-413-83-7, NUDOCS 8305250282 | |
| Download: ML20023D643 (2) | |
Text
{{#Wiki_filter:_ 4 DUKE POWER GOMPANY P.O. Itox 33180 CHAMLOTrE, N.C. 28242 HAI. H. TUCKER TELEPHONE vuos reassoast (704) 373-4531 May 13, 1983
===r-- .Mr.' James P. O'Reilly, Regional Administrator U. S. Nuclear Regulatory Commission Region Il '101 Marietta Street, NW, Suite 2900 Atlanta, Coorgia 30303 Re: Catawba Nuclear Station . Unit 1 Docket No. 50-413
Dear Mr. O'Reilly:
Pursuant to 10 CFR 50.55e, please find attached Significant Deficiency Report SD~413/83-07. Very truly yours, 6 d/ Hal B. Tucker RWO/php Attachment cc: Director INPO Records Center Office of Inspection and Enforcement Suite 1500 U.' S. Nuclear Reguletory Commission 1100 Circle 75 Parkway Washington, D. C. 20555 Atlanta, Georgia 30339 Mr. P. K. Van Doorn Mr. Robert Guild, Esq. NRC Resident Inspector Attorney-at-Law Catawba Nucicar Station P. O. Box 12097 Charleston, South Carolina 29412 Palmetto Alliance 2135 Devine Street Columbia, South Carolina 29205 OFFICIAL COPh (305250282'830513 2 ~ 05000413 .PDR ADOCK
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.-.~. 4 W. y Duke Power Company Catawba Nuclear Station Significant Deficiency i LReport' Number: SD 413/83-07 Report Date:.May 13, 1983 i Facility: ~ Catawba Nuclear Station Unit 1 Identification of Deficiency: Vent valve IND105 was not installed in accordance with Design and Construction criteria. This item was identified by Design Engineering during a field visit on March 25, 1983. Initial Report: Initial report was made to Mr. V. Brownlee, Region II NRC, on April 14, 1983 by W. O. Henry, C. A. Bell, and T. A. Ford of Duke Power Company, Charlotte, North Carolina 28242. Description of Deficiencyt Vent valve IND105 was not installed in accordance with Design isometric drawing CN-1492-NC029. The discovery was made after system installation' completion and system inspection by QC. Revision 2 of'the above drawing added-the particular vent in question. This l' revision showed a detailed configuration of the vent on the drawing.. Prior to the actual installation of the vent, Revision 3 of'the drawing was issued which deleted the detailed configuration of the vent and added reference to a standard detail; drawing. f or vent < ins tallation. Seventeen months after Revision 3 was issued, the' vent was installed. The current revision of the drawing at that time was Revision 5. The overall length criterion specified by the standard drawing was exceeded;,however,' the -installed configuration is allowed by the standard drawing. This discrepancy'was not discovered by' Construction or QC 4 . personnel even though governing procedures require a detailed configuration and dimensional inspection. JAnalysis of Safety Implications: The installation deficiency described above clearly-is in violation of Catawba FSKR commitments to Design ~and Construction Seismic Category I systems in accordance with ASME B&PV Section III,~and could preclude this component from' serving its safety function. 4 . Corrective Action: The' vent installation error will be corrected to conform with the drawing in June 1983 or as soon as NC system cold hydro is complete, .No changes to our inspection program are anticipated at this time because-e investigation shows this to be an isolated case based-on inspection of all'other similar situations ;in the ND system (five cases). No problems were' identified. -We~ feel-our)programisadequatetopreventfutureoccurrence. O b e g -y-t w w -u-ay,. w w ,,-,r ~., es i- - -e. =}}