IR 05000324/1986029

Insp Repts 50-324/86-29 & 50-325/86-28 on 861020-24.No Violations Noted.Major Areas Inspected:Electrical, Instrumentation & Control Maint Activities

ML20215B618
Person / Time
Site:	Brunswick
Issue date:	12/01/1986
From:	Conlon T, Petrone C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
Shared Package
ML20215B604	List: IR 05000324/1986029 ML20215B601
References
50-324-86-29, 50-325-86-28, NUDOCS 8612120253
Download: ML20215B618 (13)

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United States Nuclear Regulatory Commission Region II 101 Marietta Street, Atlanta, Georgia 30323 Report No. 50-325/86-28 and 50-324/86-29 Licensee: Carolina Power and Light Company 411 Fayetteville Street Raleigh, North Carolina 27602 Docket No. 50-325 and 50-324 License No. DPR-71 and DPR-62 Facility Name: Brunswick 1 and 2 Inspection Dates: October 20-24, 1986 Inspector: . M //, ' J//6 C. Petrone, Lead Reactor Engineer date Approved by M[#~

T. ET Conlon, Section Chief

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' da *.e Plant System Section Division of Reactor Safety Scope: This routine, unannounced inspection was conducted by a Region I based inspector in the areas of Electrical and Instrumentation and Control maintenance activitie Results: No violations or deviations were identified.

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8612120253 861204 PDR ADOCK 05000324 o PDR i

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DETAILS Persons Contacted Carolina Power and Light Company

• J. W. Chase,~ Assistant to the General Manager

• J. O'Sullivan, Maintenance Manager

• R. L. Warden, Unit 1 I&C Superintendent

• L. E. Jones, Director QA/QC

• K. E. Enzor, Director Regulatory Compliance

• R. M. Poulk, Senior Specialist NRC Compliance C. Parker, Senior Specialist - I&C Other licensee employees contacted included engineers technicians electricians, and mechanic United States Nuclear Regulatory Commission

• Ruland, Senior Resident Inspector L. Garner, Resident Inspector

• Denotes those who attended the exit intervie . Exit Interview

, The inspection scope and findings were summarized on October 24, 1986

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with those persons indicated in paragraph 1 above. The inspectors described the areas inspected and discussed in detail the inspection findings. No dissenting comments were received from the licensee. The licensee did not identify as proprietary any of the materials provided to or reviewed by the inspectors during this inspectio . License Action on Previous Enforcement Matters This subject was not addressed in the inspectio . Unresolved Items Unresolved items were not identified during the inspectio . Electrical and Instrumentation Maintenance The inspector reviewed the licensee's Electrical and Instrumentation Maintenance activities by witnessing work activities, reviewing documentation, and interviewing licensee personnel.

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5.1 Procedures Review The licensee's procedures, listed in Attachment 1, were reviewed to ensure written procedures had been established for routine, corrective or emergency maintenance activities and that they included the following:

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Administrative approvals for removing the item from service and returning it to service;

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Provisions to require that the latest approved drawings are used;

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Hold points for inspection and signoff by QC;

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Provisions for returning the affected system to the original configuration following maintenance;

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Provisions for operational readiness testing following maintenance;

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Requirements for special authorization for activities involving welding, open flame, or other ignition sources;

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Provisions to assure that materials, parts and components are correct and suitable, including environmental qualification;

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Provision for assuring that TS limiting conditions for operation are identified and satisfied;

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Provisions for the control of housekeeping;

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Provisions for obtaining approval from operations;

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Provisions for equipment failure analysis and trending;

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Provisions for removal of appropriate jumpers, restoration of lifted leads, reinstallation of tubing, and removal of test devices;

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Responsibility for repar ting to licensee management details concerning design or construction related deficiencies identified during maintenance;

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Provisions for control of special processes, special tools, and test equipment;

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Appropriate acceptance criteria;

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Provisions to assure personnel qualifications;

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Provisions to control the use of measurement and test equipment; a t.d ,

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Provisions to control work in radiation area No violations or deviations were identifie .2 Witnessing Maintenance Activities The inspector witnessed work activities performed by electricians and I&C technicians. These activities included corrective and preventive maintenance. During these observations the inspector determined the following:

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Proper operational personnel had been notified and clearances issued;

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Appropriate maintenance work orders had been issued and approved;

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The latest approved procedures, drawings and instructions were being used;

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Properly specified parts and materials were used;

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QC inspection signoffs were made where specified in the procedures;

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Qualified test equipment and tools were in use;

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Adequate identification of jumpers and lifted leads was maintained;

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Proper restoration of barriers and covers was accomplished;

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Required system lineups had been accomplished and verified prior to functional testing;

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Adequate post maintenance functional testing was performed; l

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Fire Protection precautions were observed;

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Limiting conditions for operation were met; and,

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Housekeeping was satisfactory.

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The insp.ector witnessed portions of the following maintenance and surveilipnce activities:

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GEkks,VACBreakerCompartmentCheckout Breaker compartment preventive maintenance was performed on three cubicles by two electricians who inspected and cleaned breaker contacts, meggered insulation resistance, and checked motor winding continuity using a Wheatstone Bridg Calibration of Core Spray Room Pressure Switch I&C technicians used procedure MI-03-3A to attempt to calibrate a service water header pressure switch for the IB core spray room cooler. They suspended work when they found corrosion on the pressure switch and decided to replace the switc Barksdale Pressure Switch A pressure switch with a crack in the case was replaced by I&C technicians. This pressure switch monitors the nitrogen accumulator pressure in CRD Hydraulic Control Unit 42-31. The inspector witnessed the installation and calibration of this switc Level Indication System Troubleshooting The inspector witnessed the troubleshooting of the two level indicators on the Containment Atmospheric Control System Nitrogen Storage Tank Level Indicators. The two level indicators provide indication of the CAC Nitrogen supply in both control rooms. The technician calibrated the control room indicators which did not correct the problem. He isolated the problem to a suspected faulty level transmitter. He then suspended work for the remainder cf the shift while he requisitioned the necessary part No violations or deviations were identifie .3 Measurement and Test Equipment During the witnessing of these work activities the inspector selected a sample of seven pieces of measurement and test equipment and verified they were within their specified calibration due dat These instruments are listed in attachment 1. The inspector also reviewed the calibration records for these instruments which were maintained by the licensees calibration lab. These records were readily accessible and properly maintained. The record of instrument usage was being accurately maintaine No violations or deviations were identifie _

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. 5 5.4 Records Review The inspector reviewed a sample of twenty-five completed work requests, listed in attachment 1, to ensure Nuclear Quality Engineering had reviewed all safety related work requests, appropriate post maintenance testing had been specified, Shift Supervisor approval had been obtained where necessary, and final review sign-offs had been completed. All work requests appeared to be satisfactor No violations or deviations were identifie .5 Quality Control and Quality Assurance The NRC inspector examined the role of the licensee's quality control department during the performance of maintenance activities. The QC supervisor explained that QC inspectors witness all hold points specified in the Maintenance Instructions and on Work Requests. They also perform random monitoring of plant activities. The NRC inspertar reviewed a sample of the QC Random Monitoring Field Reports (listed in Attachment 1) performed during the past four months and verified they included I&C and Electrical maintenance activitie The NRC inspector also reviewed the licensees' Quality Assurance department involvement in the review of I&C and Electrical Maintenance Activities. The NRC inspector reviewed the licensee's tentative schedule of surveillance activities for the months of October, November, and December, and noted it included plans to -

inspect the maintenance program. The NRC inspector also reviewed a sample of completed QA Surveillance Reports (listed in Attachment 1)

and noted that I&C and Electrical Maintenance activities had been reviewe No violations or deviations were identifie .0 Unresolved Items and Inspector Follow-up Items 6.1 (Closed) Unresolved Item 324, 325/84-33-01, No Test Performed or Required to Verify Proper Operation of Motors After Breaker Preventive Maintenance. The inspector reviewed maintenance instruction MI-10-2K2, GE 480 VAC Breaker Compartment Checkout, Rev. 9, January 17, 1985 which was revised by the licensee to include requirements for the operations department to check the operation of equipment following completion of the PM on the breakers. They are required to start the equipment and verify proper operation or, if the equipment cannot be operated at that time, to initiate a Work Request and Authorization to verify and signoff proper operation when the equipment is returned to service. This procedure revision satisfactorily addresses the inspectors concer .

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.6 6.2 (Closed) Inspector Followup Item 324, 325/84-33-02, Review Cable Installations for Bend Radius and Unsupported Length. The inspector reviewed an engineering evaluation performed by the licensee which concluded that the as installed unsupported length of these cables did not result in unacceptable stress in the cables. The inspector examined the cables on the identified motor control centers and did not identify any which exceeded the maximum allowable unsupported length. The inspector reviewed the results of a survey performed by the licensee which verified that the bend radius for each size and type of cable was not below the minimum recommended in BSEP Specification 048-001. The inspector also verified that the cables were not in contact with the threaded hanger rods. Based on these reviews and inspections the inspector concluded that the licensee had adequately evaluated the concerns addressed in this ite .3 (Closed) Inspector Follow Item 324, 325/84-33-03, Review of Fuse Size During Preventive Maintenance. The ir.spector reviewed maintenance instruction MI-10-2K2, GE 980 VAC Breaker Compartment Checkout, Rev. 9, January 17, 1985, and verified that it was revised by the licensee to include the requirement to verify fuse size and to inspect fuse clips for damage and tension. The fuse size and fuse holder condition are also required to be recorded on the data sheet. During the witnessing of breaker maintenance

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activities the inspector confirmed that these steps were being performe .4 (Closed) Inspector Follow Item 324, 325/84-33-04, Procedure MP-31 Should Require Restoration of Fire Protection / Separation Materials. The inspector reviewed maintenance procedure MP-31, Electrical Cable and Conduit Installation, Identification, and Testing, Rev. 6, April 2, 1985, and verified that instructions had been added to require that any fire protection or separation materials, removed during the performance of MI-31, be restored to the original

! condition. The inspector also reviewed MI-31-1, l Installation of Electrical Cables, Rev. 4, dated November l 26, 1984, and verified instructions had been added to l ensure any covers removed for wire pulls are replaced.

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al 6.5 (Closed) Inspector Followup Item 324, 325/84-33-05, Review the Trending Program Status. The concern identified is that a back log in the review of completed maintenance work requests would keep the desired information unavailable for input to the trending program for plant equipmen Subsequently the licensee has implemented an Automated Maintenance Management System which electronically stores the work order data including equipment type, malfunction, and corrective actions. This new system allows the data required for trending to be recalled, sorted, and edited more rapidly than with the old system. The inspector reviewed maintenance procedure MP-14A, Corrective Maintenance (Automated Maintenance Management System)

Rev. 1, December 5, 1985 which describes this syste These changes make the data required for trending available on a mort timely basi .

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ATTACHMENT 1

, Procedures Reviewed Number Title Re Date AP VOL I Operating Manual 100 July 22, 1986 MP-01B Control of Measuring 5 June 1,1986 Devices and Test Equipment for I&C/.

Electrical MP-03 Calibration of 23 July 31,1985 Process Instruments MP-04 General Maintenance 13 May 27, 1986 Procedure MP-10 Prevent Maintenance 27 February 10,'1986 Procedure '

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MP-11 Control of Relay and 8 July 17, 1985 Overload Settings o MP-12 General Cleanliness 10 January 9, 1986 Procedure MP-14A Corrective Maintenance 3 April 16, 1986 MP-26 Loop Calibrations 7 October 11, 1985 MP-31 Electrical and Conduit 6 April 2, '985 Installation MI-10-2K2 GE 480 VAC Breaker 12 June 9, 1986 Compartment Checkout MI-03-3A General Pressure / Vacuum 6 November 7, 1984 Switches MI-03-3A45 Barksdale Pressure Switch 0 January 23, 1982 OAC-UI001 Calibration of International 1 October 4, 1986 Instruments Model 1151 Indicator m

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ATTACHMENT 1(Cont)

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Measuring and Test Equipment CP&L-BSED(Number)' Description CAL Due Date i G146 Heise Pressure Gage November 3, 1986 V36 Simpson Volt-Ohm- December 23, 1986 Milliammeter RC18 Ronan Model 85 December 8, 1986 V70 Simpson Volt-0hm- December 23, 1986 Milliammeter G134 Heise Pressure Gage November 3, 1986

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Mly Megger November 3, 1986

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'sih Beckman Wheatstone November 10, 1986

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ATTACHMENT 1 (Cont) j

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Completed Work Requests Reviewed Number System Description 85-AIWA1 RWCU Re-terminate Wires on Temperature Element 86-AMYQ1 Fire Detection Smoke Detector Spurious Alarms 86-AHNP1 Off Gas Flex Conduit broken 86-AHNB1 HPCI Loose Cover Bolt 84-ABAM1 CRD Repair Thermocouple 85-3648 SBLC Repair Level Transmitter 85-1657 821 Repair Valve Operator 86-AEJD1 RHR Pressure Switch Repair 85-1663 821 Repair Valve Operator 85-9859 CRD Repaired Accumulator Pressure Monitor Relay 85-4283 C32 Repaired Level Recorder 84-5673 CW Replace Switch 85-2603 480VDS Replaced and Calibrated GE Ssave N ye Dc14y 86-AKSG1 CRD CRD Pump Motor Breaker * iripped 85-4650 RHR Megger Pump Motor for EQ Requirements 84-5187 RHR Repair 480 Volt Breaker 85-3532 APRM Check Low Chamber Power Supply 86-AFM1 120VAC Corrected Panel Label 86-AGLT1 Emergency DC Repair DC Ligt.ts 84-5471 480VDS Reterminate Lifted Levels 85-ALLF1 250VDC Verify Operation of MCL 85-4060 SW Replace Instrument Tubing 86-ANYa1 Neutron Monitor Install Jumpers to Perform PT 85-ALAG1 RWCU Checkout Leak Flow Indicator 86-ANCA1 120 Volt Dis Clean Transformer

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ATTACHMENT 1 (Cont)

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QC Random Monitoring Field Reports Report N Subject Date EFR-86-317 MCC Bus Bar Bolt Failures June 20, 1986 EFR-86-401 EDG Lube Oil Pump Motor August 28, 1986 EFR-86-403 4180 Volt Switchgear Monitor September 2, 1986 EFR-86-405 Fire Protection in Cable September 7, 1986 Spreading Room EFR-86-412 Conduit Cover Missing September 15, 1986 EFR-80-413 Broken Switch on Radiation September 15, 1986 EFR-86-416 Missing Conduit Cover September 18, 1986 EFR-86-427 Lights in Service Water September 30, 1986 Arec Lamp EFR-86-429 PYR-A-LARM Switch Support October 2, 1986 EFR-86-430 Loose Ground Wire in Cable October 5, 1986 EFR-86-431 Monitor of Calibrated Tools October 6, 1986 EFR-86-432 Monitor of Calibrated Tool October 7, 1986 EFR-86-433 honitor of Fiber Optic October 7, 1986 Cable Testing i

EFR-86-435 Monitor I&C Calibration October 8, 1986 Tool Room 5:1.386-436 Emergency Lighting Unit PM October 8, 1986 EFR-66-53/ Service Water Pump Wiring October 12, 1986 Loose EFR-86-438 CST Heat Trace Wires Loose October 13, 1986 EFR-86-445 Monitored Cable Pulling October 22, 1986

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ATTACHME;1T 1 (Cont)

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QA Surveillance Reports Report N Surveillance Area Date QASR-86-001 Corrective Action for July 15,1986 NRC Inspection Reports QASR-86-002 Measuring and Test Equipment May 8, 1986 Calibrations QASR-86-003 Verification of T.S. Surveillance February 3, 1986 Requirements QASR-86-011 Verification of TS Surveillance April 3, 1986 Requirements QASR-86-024 Verification of TS Surveillance July 31,1986 Requirements QASR-86-028 Periodic Tests May 30, 1986 (including Maintenance)

QASR-86-031 Revision of Plant Surveillance July 30,1980 Procedures QASR-86-033 Valve and Electrical Lineup May 9, 1986 Verification QASR-86-034 Conduit Support June 9, 1986 QASR-86-040 Outage Activities July 2,1986 QASR-86-003 Transversing Incore Probe Tubing October 17, 1986

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