ML20046A197
| ML20046A197 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 07/21/1993 |
| From: | Hebert J Maine Yankee |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| JRH-93-152, MN-93-71, NUDOCS 9307270082 | |
| Download: ML20046A197 (11) | |
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MaineYankee I
RJLI Aj)(Lf_LC_C_TRICITY SINcE 1972 EDISON DRIVE
- AUGUSTA. MAINE 04330 * (207) 6224868 t
July 21,1993 MN-93-71 JRH-93-152 I
UNITED STATES NUCLEAR REGULATORY COMMISSION Attention: Document Control Desk Washington, DC 20555 s
Reference:
(a)
License No. DPR-36 (Docket No. 50-309)
Attachments:
(a) SWOPI Self-Assessment Milestone Schedule (b)
Inspection Plan Functional Descriptions (c)- SWOPI Organization (d)
Previous Service Water / Component Cooling Inspections
Subject:
Service Water Operation Performance Inspection (SWOPI)
Gentlemen:
Maine Yankee recently discussed with you.the possibility of conducting a self-inspection of Service. Water Operational Performance in lieu of a NRC Service Water Operation Performance Inspection (SWOPI). The inspection would utilize Maine Yankee personnel in lieu of NRC personnel / contractors.
We are presently. developing the plans:to conduct an inspection. on our Service Water System using as guidance NRC--
- Temporary Instructions 2515/118.
We understand that the NRC. may' also-elect. to L
conduct an independent SW0PI on Maine Yankee,Las deemed appropriate.
Provided<as attachments are a proposed milestone-schedule, SWOPI organization,
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Land conceptual functional descriptions of areas to be assessed. The functional areas
-provided are considered to be consistent with the-NRC Temporary Instructions. Also provided, as an attachment, is a. listing of recent' previous inspections conducted on the SW system, CCW ' systems, and auxiliary systems, such- ~ as,. electrical and instrumentation systems.
It should be noted that the Service Water (SW) System at
' Maine Yankee' only provides the. heat / sink for_ the plant's-. component Cooling-Waterl
=(CCW)-Systems. The CCW systems;are closed-loop / chemically; controlled-. systems. - As -
such, the:SW system is considered relatively simple (non-complex) system (Refer to-FSAR section 9.6 for additional SW system description).
As. indicated in the attached.SWOPI milestone schedule, we' propose'.to meet with' NRC personnel -to discuss our ; proposed inspection plan-and schedule ' prior to
-finalizing our inspection program.
The schedule shows' minimal-inspection plan activities from July through October of this year to avoid impacting refueling outage; activities and personnel resources.
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MaineYankee UNITED STATES NUCLEAR REGULATORY COMMISSION
-MN-93-71 Attention: Document Control Desk Page 2 We appreciate your being willing to allow us to conduct an in-house SWOPI. We will ensure that a quality system performance inspection is performed.
Please contact me should you have any further questions.
Very truly yours, AM James R. Hebert, Manager Licensing & Engineering Support Department JRH/ jag Attachments
-c:
Mr. Thomas T. Martin Mr. Wayne M. Hodges Mr. Jacque P. Durr Mr. Plackeel K. Eapen Mr. Leonard Prividy Mr. Charles S. Marschall Mr. E. H. Trottier Mr. Patrick J. Dostie L \\93MN\\9371
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ATTACHMENT A SWOPI SELF-ASSESSMENT MILESTONE SCHEDULE Haine Yankee letter to NRC describing conceptual SWOPI 05/93 inspection plan and presenting the proposed milestone schedule.
i Appoint a M.Y. Management Sponsor, Team Leader, and Ass't Team 05/93 l
Leader for the SW0PI Program.
Select remaining Inspection Team Members and Department 06/93 Contacts.
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Develop SWOPI Inspection Plan.
11/93 Management review of Inspection Plan.
-12/93 Inspection Plan presentation to NRC for information and comment.
01/94 Indoctrination of team members on Inspection Plan, inspection 02/94 techniques and process (includes service water system walkdown).
Conduct SWOPI.
02/94 I
Prepare final report.
03/94 Management review of SWOPI final report.
04/94 Submit SWOPI final report to NRC.
05/94 Presentation of SWOPI results to NRC.
06/94 Li\\93PN\\937 3
ATTACHMENT D FUNCTIONAL DESCRIPTION TEAM LEADER AND ASSISTANT TEAM LEADER Develop inspection plan.
e Focus inspection on important issues.
Coordinate to assure all important issues are covered.
Review team members work and identify significant findings, Prepare daily report to management.
e Prepare final report.
Lei 93MN\\9371 L..
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ATTACHMENT B FUNCTIONAL DESCRIPTION DESIGN REVIEW AND CONFIGURATION MANAGEMENI Determine system / component functions based on design basis review, Determine conformance to regulatory requirements / commitments.
e Determine if thermal & hydraulic performance requirements will be met.
Determine if controlled drawings, specs, etc. conform to design basis.
Review operating procedures for conformance to design basis, Evaluate single failure scenarios.
e Evaluate failures of interfacing systems.
Evaluate common mode failures.
Review design features which minimize fouling or silting.
Verify features are provided to detect flow degradation.
e Verify system flow balancing.
Verify protection against pump runout.
e Check design features to prevent flooding.
e Review recent EDCRs for conformance to design basis.
Evaluate Maine Yankee response to Action IV of G.L. 89-13.
e Review performance trending and operability determinations.
Review setpoints for conformance to design basis.
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ATTACHMENT B
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FUNCTIONAL DESCRIPTION OPERATIONS Perform system walkdown, e
Review system configuration consistent with drawings & procedures (Action o
IV, G.L. 89-13)
Review alarm response and OPS procedures to meet design.
e Review implementation of OPS procedures.
Assess adequacy of flow instruments needed during accident.
Review logs for adequacy of temperature ard flow monitoring.
Review operator training.
Review implementation of procedures for alignment of valves.
Verify that normal system operations valve alignments allow adequate accident flows.
Verify valve throttle positions, if any.
Walkthrough OPS procedures with operators.
Verify accessibility of equipment, Determine working order of equipment.
e Verify adequacy of operator's knowledge of equipment location and procedures.
Interview operators to determine system knowledge (Tech.
Spec.
requirements,etc.)
Review local operation of equipment.
e Assess operational controls to prevent clogging of inlet screens.
Evaluate Maine Yankee response to Action V of G.L. 89-13.
Witness post maintenance, surveillance, and inservice tests, if possible.
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e ATTACHMENT B FUNCTIONAL DESCRIPTION MAINTENANCE Perform system walkdown.
e Review material condition of equipment.
e Review work order preparation.
Witness a maintenance activity.
e Evaluate adequacy of maintenance procedures.
Compare maintenance procedures and PM program to vendor manuals.
Verify vendor manuals are complete and up to date.
Evaluate Maine Yankee response to Actions III, IV, & V of G.L.
89-13.
Review maintenance program to deal with silting, biofouling, and corrosion.
Review history files for recurring problems, Evaluate root cause analysis and corrective actions taken in response to e
adverse trends.
Review several completed work packages for technical adequacy and appropriate functional testing.
Interview personnel to assess technical knowledge such as setting limit switches, aligning pump couplings, replacing filters, etc.
Assess training programs.
e Evaluate spare parts availability.
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ATTACHMENT B FUNCTIONAL DESCRIPTION SVRVElllANCE AND TESTING Evaluate Tech. Spec. surveillance procedures and IST procedures performed in last 2 years.
Ensure that test methods demonstrate that system performance mercs design assumptions.
Review system design and licensing basis, Verify that test acceptance criteria are consistent with design basis.
e Review system performance indicators to identify testing adequacy.
Review results of pre-ops testing for adequate demonstration of system capability, Determine if controls, such as valve travel limits, were established.
e Evaluate EDCR packages for appropriate testing.
Review the IST Program for completeness.
Review IST records for adequacy of procedures, trending, and recurrent failures.
Review instrument calibration ano testing.
Review how valve stroke time testing is performed.
Review installation of temporary test equipment.
Verify instrument accuracy tolerances.
Witness post maintenance, surveillance, and inservice tests, if possible, Review periodic performance testing of heat exchangers (Action II, G.L.
e 89-13).
Verify that components are tested to ensure performance per design basis.
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Review periodic inspection program to detect flow blockage (Action I, G.L.
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e 89-13).
1 Evaluate Maine Yankee response to Actions I, II, & IV of G.L.
e 89-13.
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ATTACHMENT B FUNCTIONAL DESCRIPTION OVALITY ASSURANCE Review safety review committee's meeting minutes for applicable items, e
Review applicable LERs, NCRs, NPRDS, 10CFR50.72 reports, etc.
e Review applicable operability determination.
Review work orders and adverse test results or recurrent test failures for root cause evaluations.
Determine why quality verification programs did not discover significant e
issues identified in this inspection.
Review timeliness and adequacy of resolutions of self-assessment findings.
Review open item tracking system for adequate closure of deficiencies.
Evaluate interface between engineering / technical support and plant operations.
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ATTACHMENT C SERVICE WATER SYSTEM CPERATIONAL PERFORMANCE INSPECTION TEAM ORGANIZATION CHART (see Attachment B for specific functions)
VP, LICENSING & ENG TEAM LEADER ASSISTANT TEAM LEADER YNSD SUPPORT DESIGN REVIEW CONFIG. MANAGEMENT OPERATIONS TRAINING SUPPORT MAINTENANCE SURVEILLANCE TESTING QUALITY ASSURANCE
- ELECTRICAL SUPPORT
- Note: minimum-involvement required; previously covered by NRC SSFI & EDSFI L \\9D98\\9373
ATTACHMENT D PREVIOUS SERVICE WATER / COMPONENT COOLING INSPECTIONS NRC SSFI Inspection, Report 89-80 "89" NRC Inspection, Report 89-22 "89" NRC SSFI Follow-Up Inspection, Report 90-80 "90" M Y. Inspection and Response to Generic Letter 89-13 "91" M.Y. Self-Initiated SSFI "91" Design Basis Recovery "91" EDSFI Inspection, Report 91-81 "91" e
NRC Inspection, Report 92-21 "92" Li\\93MN\\9373
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