IR 05000280/1979038
| ML18135A141 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 07/31/1979 |
| From: | Elrod S, Kellogg P NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML18135A140 | List: |
| References | |
| 50-280-79-38, 50-281-79-57, NUDOCS 7909250148 | |
| Download: ML18135A141 (4) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION
REGION II
101 MARIETTA ST., N.W., SUITE 3100 ATLANTA, GEORGIA 30303 Report Nos. 50-280/79-38 and 50-281/79-57 Licensee:
Virginia Electric and Power Company Richmond, Virginia 23261 Facility Name: Surry Units 1 and 2 Docket No and 50-281 License Nos. DPR-32 and DPR-37
_SUMMARY Inspection on July 9-12, 1979 Areas Inspected This routine, unannounced inspection involved 26 inspector-hours onsite in the areas of IE Circular followup and Seismic Reanalysis of Safety Related pipin Results Of the two areas inspected, no items of noncompliance or deviations were identifie _5 O\\q. <&
DETAILS Persons Contacted Licensee Employees
- W. L. Stewart, Station Manager
- J. L. Wilson, Superintendent Operations
- T. A. Peebles, Superintendent Technical Services
- P. P. Nottingham, I~I, Assistant Supervisor Health Physics
- R. L. Baldwin, Supervisor Administrative Services
- D. Kildoo, Station QC
- W.R. Skelley, Jr., SGRP Staff Assistant
- E. P. Dewandell, Station Staff Assistant
- D. A. Christian, Supervisor Engineering Services
- W. Davidson, Corporate
- T. Simpson, Corporate F. L. Rentz, Resident QC Engineer D. L. Padula, Engineer Other Organizations Stone and Webster Engineering Corporation E. Fuller, Engineering Assurance Engineer L. Reynolds NRC Resident Inspector D. J. Burke
- Attended exit intervie.
Exit Interview The inspection scope and findings were summarized on July 12, 1979 with those persons indicated in paragraph 1 above.* The scope of the inspection and the findings were reviewe The licensee was informed that no items of noncompliance were identifie.
Licensee Action on Previous Inspection Findings Not inspecte.
Unresolved Items Unresolved items were not identified during this inspectio..
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-2-IE Circular Followup (Closed) IE Circular 77-14, "Separation of Contaminated Water System from Non-Contaminated Plant System".
This circular addressed a combination of design and valve operation errors allowing water contaminated with tritium to enter the drinking water supply from the Primary Water Tan If further addresses National Standard Plumbing Code requirements concerning interconnections between potable and non-potable water system A review of licensee actions shows that a prompt review was made of plant systems with respect to this circula A resultant design change (77-49), which installed backflow prevention devices, was completed and audited on March 9, 197 Administrative Procedure 54 has been issued to specify respon-sibility for backflow prevention and Periodic Test Procedure 48 addresses testing of these device These procedures were reviewed by the inspector, who had no further question This circular is close (Closed) IE Circular 79-02, "Failure of 120 Volt Vital AC Power Supplies".
This circular addressed undesired automatic action of certain inverter controls caused by improper time delay settings and by excessive variation between rated DC input voltage and DC bus voltage during transient loading condition The licensee has reviewed this circular for the principles involved since the referenced configuration is unlike Surry's. Design Change 79-09 has been initiated to install a high-voltage shutdown unit on each battery charger to prevent damage to the inverters and DC equipment should battery charger fail and produce a high voltag The inspector had no further question This circular is close (Closed) IE Circular 79-04, "Loose Locking Nut on Limitorque Valve Operators". This circular addressed a situation where a manufacturer's instruction and maintenance manual omitted the requirement to "stake" certain locking nuts and recommended that licensees survey their equipment to ensure that the locking nuts were tight and stake The licensee conducted this survey (maintenance reports n and No. 1904210800), finding two loose locking nuts and many not stake Discrepancies were corrected and valve maintanance procedure MMP-C-G-001 was modified to include the staking requirement upon assembl The inspector had no further question This circular is close (Closed) IE Circular 79-08, "Attempted Extortion-Low Enriched Uranium".
This circular addressed criminal activity involving improper entry into, theft from and attempted extortion from a fuel processing plan e
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-3-It was addressed to power plants for informatio The licensee had reviewed the circular for the principles involved and had evaluated plant controls accordingl Subsequent to this inspection, this evaluation was reviewed by the Region II security sectio The inspector had no further question This circular is close (Open) IE Circular 79-05, "Moisture Leakage in Stranded Wire Conductors".
The station engineering staff reviewed this circular, and indicated that the issues would be addressed along with others by June 1 in the response to IE Bulletin 79-01, "Environmental Qualification of Class lE Electrical Equipment".
The response to IE Bulletin 79-01 indicated that further investigation is require This circular remains open (280/79-CI-05, 281/79-CI-05). Seismic Reanalysis of Safety Related Piping The inspector reviewed with plant management and involved engineers/ QC personnel the status of piping drawing approval, hanger review and repairs/
modifications made to the systems and hanger "Hanger" is used here as a generic term for supports, restraints, hangers, et As of the completion of the inspection, 127 piping drawings, called MKSs, have been issued for Unit No. 1. Eleven drawings have been voided as outside the scope of the analysis; 102 have been approved by VEPCO QC as accurately representing installed piping; and 14 require modifications to either the drawing or plant before final approval. It was noted that, as the hanger analysis progresses, some of the currently approved drawings will require some revision, mostly in the hanger note A total of 78 MKSs, have been issued on Unit No. 2, of which about 25% presently contain error These MKSs are being corrected as part of the licensee's seismic reanalysis progra The inspector had no further questions concerning MKS The current level of hanger review involves onsite verification of only those hangers requested by the Stone and Webster analysis group, located in Boston. Site management stated that no programmatic, documented hanger drawing verification program was being pursue This lack of a program was also noted in an earlier inspection report (280/79-28-01).
This item remains ope As of the completion of this inspection, 26 major piping hanger modifica-tions have been identified of which 21 were completed and 80 minor modifications have been identified of which 61 were complete No items of noncompliance or deviations were identified..
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