ML20069C040
| ML20069C040 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 02/18/1982 |
| From: | Parker W DUKE POWER CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8203080216 | |
| Download: ML20069C040 (3) | |
Text
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' Sta nee PmODuctiON co Mr. James P. O'Reilly, Regional Administrator t-Cb U. S. Nuclear Regulatory Commission OO 01 far tta Street, Suite 3100 Atlanta, Georgia 30303 MAR 051982m3 kp Re: Catawba Nuclear Station Units 1 and 2 Ice Docket Nos. 50-413 and -414 Cu
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Dear Mr. O'Reilly:
Pursuant to 10 CFR 50.55e, please find attached Significant Deficiency Report SD 413-414/82-01.
Vet,f truly yours hw: _ lb.
William O. Parker, Jr RWO/php Attachment cc: Director Mr. Robert Guild,1:sq.
Office of Inspection and Enforcement Attorney-at-Law U. S. Nuclear Regulatory Commission 314 Pall Mall Washington, D. C. 20555 Columbia, South Carolina 29201 P. K. Van Doorn Palmetto Alliance NRC Resident Inspector 2135h Devine Street Catawba Nuclear Station Columbia, South Carolina 29205 d
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8203080216 820218
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CATAWBA NUCLEAR STATION Report Number:
SD 413-414/82-01 Report Date: February 18, 1982 Facility: Catawba Nuclear Station, Units 1 and 2.
Identification of Deficiency:
Valves 1NI54A, 1NI76A, 1RN74A Limitorque Operator (EMO) lubricant leakage from gear box into limit switch compartment.
Initial Report:
On January 21, 1982, Mr. Bryant of NRC Region II, Atlanta, Georgia was notified of this deficiency by Mr. W. O. Henry, Mr. J. K. Berry and Mr. II. E. Edwards of Duke Power Company, Charlotte, North Carolina.
Supplier and/or Components:
The valves and operators affected are as follow:
Valve Number Application Limitorque Model #
INI54A, 1NI76A UHI Accumulator Tank Dis-SBD-3 charge Isolation Valve in Safety Injection System.
Valve is 10" Cate Item 9J-209 1RN47A Nuclear Service Water SMB-00-10 Crossover Isolation Valve.
Valve is 20" butterfly item 2B-270 Description of Deficiency:
As a result of McGuire Unit 2 50.55e report SD 370/81-08 (10/21/81), inspection of Catawba Unit 1 and 2 Limitorque Operators was initiated. Construction personnel discovered lubricant leakage into the Limit Switch Compartment in the above EM0's.
Limitorque Operators on valve 1RN47A had been stored in an improper orientation for an extended period, and INI54A had been installed in improper orientations and had not been operated for an extended' period.
Analysis of Safety Implications:
The' affected valves are safety related, active valves with Class 1E EMOs.
The lubricant is not compatible with components and wiring located in these i
compartments and subsequent degradation of these components could result in loss of safety related valve function, Corrective Action:
The following corrective actions have been or are being completed:
1.
Electrice' apartments in the three_EM0s will be cleaned of lubricant.
Damaged r-ig and components will be replaced, i
2.
Storage procedures have been changed to assure that Limitorques are not stored in positions susceptible to leakage.
3.
The inspection identified twenty active valves with Limitorque EMOs currently installed in an improper orientation. The resolution to these problems will be made by March 1, 1982 via NCI 13808. Resolu-tions include rotation of EMO on valve, reorientation and/or relocation of valve in piping to obtain proper EMO orientation. Any subsequent lubricant leakage that may occur during NCI 13808 problem resolution a ni inspection will be resolved as noted in Item 1.
i 4.
Erection Tolerance, Drawing Number CN-1680-48 has been revised to assure proper orientation of Limitorques in future Catawba designs.
Cherokee Nuclear Station Design Documents identified in Items 2 and 4 are currently in force and should preclude similar occurrence at Cherokee.
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