IR 05000280/1978030
| ML18113A716 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 11/13/1978 |
| From: | Burke D, Robert Lewis NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML18113A715 | List: |
| References | |
| 50-280-78-30, 50-281-78-30, NUDOCS 7812210113 | |
| Download: ML18113A716 (6) | |
Text
e UNITED STATES e
NUCLEAR REGULATORY COMMISSION
REGION II
101 MARIETTA STREET, ATLANTA, GEORGIA 30303 Report Nos.: 50-280/78-30 and 50-281/78-30 Docket Nos.:
50-280 and 50-281 License Nos.:
Virginia Electric and Power Company P. 0. Box 2666 Richmond, Virginia 23261 Facility Name:
Surry Power Station Inspection at:
Surry, Virginia Inspection conducted:
October 10-13, 1978 Inspector:
D. J. Burke Approved by:,E.C. ~
//~.3/7J'
R. C. Lewis, Chief Reactor Projects Section No. 2 Reactor Operations and Nuclear Support Branch Inspection Summary Inspection on October 10-13, 1978 (Report Nos. 50-280/78-30 and 50-281/78-30)
Areas Inspected:
Routine, unannounced inspection of plant operations, plant cleanliness control, IE Bulletins and Circulars, and followup of LER's,previously identified unresolved and open item The inspection involved 27 inspector-hours onsite by one NRC inspecto Date Results:
No items of noncompliance or deviations were identified in the four areas inspected.
781221.0 l /j
e e
RII Rpt. Nos. 50-280/78-30 and 50-281/78-30-1-DETAILS I Prepared b D. J. Burke, Reactor Inspector Reactor Projects Section No. 2 Reactor Operations and Nuclear Support Branch Dates of Inspection:
October 10-13, 1978 Reviewed by: £..C.~
R. C. Lewis, Chief Reactor Projects Section No. 2 Reactor Operations and Nuclear Support Branch
//ll:J/JR Date Persons Contacted Virginia Electric and Power Company (VEPCO)
- T. L. Baucom, Station Manager
- W. L. Stewart, Superintendent, Station Operations
- J. L. Wilson, Operating Supervisor
- E. P. Dewandel, Administrative Assistant
- L.A. Johnson, Supervisor, Engineering Services
- D. S. Taylor, Supervisor, Mechanical Maintenance
- F. L. Rentz, Resident QC Engineer R. E. Nicholls, Supervisor, Electrical Maintenance
- M. R. Kansler, Assistant Engineer, Engineering Services S. Eisenhart, Engineering QA Staff J. Pickworth, Senior Engineering Technician, QC D. H. Rickeard, Engineering Technician Several Control Room Operators, Shift Supervisors, QA Stores, Maintenance and records personne *Denotes those present at the exit intervie Licensee Actions on Previous Inspection Findings Unresolved Items (Closed) Unresolved Item (78-16-07):
Operability of large bore snubber The inspector reviewed records and examined certain snubber seals to determine operability of the large bore suppressors used on the pressurizers, reactor coolant pumps, and steam generators in Units 1 and The licensee determined that the majority of Pathon snubber leakage occurred during shutdown and appeared to be a result of movement of the piston shaft and of interference of the
e e
RII Rpt. Nos. 50-280/78-30 and 50-281/78-30-2-shaft with its mount when the reactor was not at temperatur The interference was corrected by the license The licensee continues to monitor the Pathon snubbers, but has noted no leakage during reactor operatio In addition, prior to plant startup, the licensee performed an engineering study which verified snubber operabilit The licensee also disassembled the worst-leaking Pathon and Bergen-Patterson (B-P) snubbers on Unit 2 and a Pathon snubber on Unit 1 to examine the seal The Buna-N and polyurethane seals were found intact and resilien The Pathon wiper rings were found embrittled, but do not affect snubber operabilit The licensee stated that the B-P seal leakage appeared to be a result of physical damage to a seal rin Environmentally induced damage or deterioration was not eviden The licensee rebuilt the above snubbers with new seals and is performing more quantitative examination of the seals remove The snubber inspection intervals are in accordance with Technical Specification 4.1 (Closed) Unresolved Item (78-05-01):
Service Water Valve Pit Flooding Modification The inspector verified that a two foot metal dike surrounded each SW valve pit, that the pits were covered with gratings for visual inspections, and that water level alarms were installed in the pits of each uni Concrete dikes were also constructed at certain entrances to prevent flooding of the turbine building rooms or area No standing water was observed in the valve pits or isolated area (Closed) Unresolved Item (77-30-01):
Fully retracted hydraulic snubbers attached to feedwater pipin The licensee modified the snubber attached on snubbers 2-WFPD-HSS-10 and 11 to return the snubbers to midspan in the cold conditio Also, an evaluation by the licensee determined that design stress limits in the feedwater piping were not exceeded due to the retracted snubber.
Unresolved Items No new unresolved items were identifie.
Exit Interview s.
The inspector met with licensee representatives as indicated in Paragraph 1 at the conclusion of the inspection on October 13, 197 The inspector summarized the scope and findings of the inspectio Review of Reportable Occurrence In the office, the inspector reviewed the Reportable Occurrence (RO) reports listed below to ascertain that NRC reporting require-
RII Rpt. Nos. 50-280/78-30 and 50-281/78-30-3-ments were being met and to determine the appropriateness of corrective action taken and planne Certain reports were reviewed at the site to verify corrective action and determine compliance with the Technical Specifications and other regulatory requirement The review included examination of log books, internal correspondence and records, review of SNSOC meeting minutes, and discussions with various staff member Within the areas inspected, no items of noncompliance or deviations were identife License Event Report (LER) 280/78-13, dated July 7, 1978, concerned six hydraulic snubbers which did not meet the snubber functional test requirements due to the apparent drift to adjustment settings during unit operatio The bleed or the lock-up rate was adjusted and the snubbers retested prior to reinstallation and servic LER 280/78-14, dated July 7, 1978, concerned an inadequate mounting plate attachment for hydraulic snubber 1-WFPD-HSs-*
1 A new attachment plate was fabricated and.properly attached to the crane wal The inspector noted an error on the LER form; docket number *05000338 was incorrectly typed in Item The inspector had the NRC files correcte LER 280/78-15, dated June 27, 1978, addressed the discovery of foreign material on certain valve seating surface Procedures have been revised and administrative memoranda issued to prohibit the use of foreign materials in valves which are leak-tested. Evaluations have been conducted and certain valves have been opened and inspected to assure that all such valves are free of foreign material LER 280/78-20, dated July 28, 1978, concerned a possibly inoperative hydraulic snubber due to the observation of some air bubbles suspended in the reservior flui Although the snubber was considered operable, it was replaced as a conserva-tive measur No bubbles have been observed in any other snubber reservior LER 281/78-18, dated June 23, 1978, concerned the discovery that two snubbers required on the Unit 2 steam generator blowdown piping had never been installe The two snubbers (2-WGCB-HSS- 002 and 003) have been installe The three snubbers on Unit 1 were evaluated by the licensee and determined to be adequate.
- RI! Rpt. Nos. 50-280/78-30 and 50-281/78-30-4-LER 281/78-17, LER 281/78-19 and LER 281/78-20 dated June 23, 1978 and LER 281/78-27 dated August 16, 1978, concerned certain inoperable Unit 2 snubbers and their reportability per TS The licensee has taken adequate corrective action and continues to review plant snubber operabilit.
Licensee Actions on IE Bulletins and Circulars IE Bulletin 78-10, Bergen-Patterson Hydraulic Shock Suppressor Accumulator Spring Coils, dated June 27, 1978, discussed the need for licensees to determine if the subject suppressors are installed at their facilities, and if so, to describe what action will be taken to assure that snubber operability is not impaire The licensee's response describe.s the location of the snubbers (RCP motors) and his plans to inspect same and replace the spring coils, if necessary, during the next extended outag To this date, no problems have been note This item remains open pending inspection and replacement of the spring coils as necessar IE Circular 78-05, Inadvertent Safety Injection (SI) During Cooldown, dated May 25, 1978, was received and reviewed by appropriate licensee personne The licensee has precautions in his operating procedures which minimize the occurrence of inadvertent SI' This item is close IE Circular 78-07, Damaged Components of a B-P Series 25000 Hydraulic Test Stand, dated May 31, 1978, was received and reviewed by appropriate licensee personne The licensee and vendor (ITT) verified that the Grinnell Tester used in not susceptible to similar damag This item is close IE Circular 78-09, Arcing of GE NEMA Size 2 Contactors, dated June 9, 1978, was received and reviewed by appropriate licensee personne A preliminary review by the licensee has determined that no such GE contactors are used at Surr A review of spare parts and purchase orders is in progres This item is close IE Circular 78-13, Operab1lity of Service Water Pumps, dated July 10, 1978, was received and reviewed by appropriate licensee personne A river water ice protection project, removal of silt from the service water system, and dredging have been initiated by the license This item is closed.
RII Rpt. Nos. 50-280/78-30 and 50-281/78-30-5-Plant Cleanliness.
The inspector reviewed plant procedures and toured certain plant areas to verify that appropriate plant cleanliness controls have been established in accordance with ANSI N18.7-1972, N45.2.3, and Reg Guide 1.3 ADM-29, "Conduct of Operations", and ADM-40,
"Station Housekeeping", are used by the licensee to assure adequate plant housekeeping and cleanlines By dir~ct questioning, the inspector verified that plant operations and maintenance personnel were cognizant of and used the above procedure The licensee is reviewing ADM-40 to determine if more specific assignment of housekeeping responsibilities is necessar In the areas inspected, no items of noncompliance were identifie Inspector Followup of Open Items The inspector verified that pressurizer sample valves (TV-SS-202A) are now Nupro valves with an extended operating rang LER 281/77-19 and open item (78-01-04) are close The inspector verified that the service water valve pits have been modified as require LER 281/77-15 and open item (78-01-03) are close The inspector has reviewed periodic test procedures with respect to snubber tests and inspection; the reviewed program appears adequat LER 281/77-12 and open item (78-01-02) are close The inspector verified that the licensee is taking action on the item identified in the Surry Fire Protection Systems Revie Open item (77-32-01) is close The inspector verified that "No Smoking" signs have been posted on each control room vertical board walk-in are Open Item (77-32-03) is close Plant Operations The inspector toured the Unit 1 and Unit 2 control rooms and certain plant areas to observe that monitoring equipment and plant instrumentation was functioning as required, and that the facility operations were in accordance with the Technical Specification Within the areas inspected, no items of noncompliance or deviations were identified.