ML17187A957
| ML17187A957 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 05/02/1997 |
| From: | Kropp W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Jamila Perry COMMONWEALTH EDISON CO. |
| References | |
| CAL-III-96-16, NUDOCS 9705120173 | |
| Download: ML17187A957 (35) | |
Text
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Mr. J. S. Perry Site Vice President Dresden Station Commonwealth Edison Company 6500 North Dresden Road Morris, IL 60450 May 2, 1997
SUBJECT:
DRESDEN CONFIRMATORY ACTION LETTER MEETING
Dear Mr. Perry:
Pu &-1'c
};£ -01 This refers to the meeting conducted at the Training Center and the Dresden Nuclear Power Station in Morris, Illinois on April 14, 1997. This* meeting was to discuss the status of your actions related to the NRC Confirmatory Action Letter (CAL) No. Rlll-96-016.
In accordance with Section 2. 790 of the NRC's "Rules of Practice," Part 2, Title 10, Code of Federal Regulations, a copy of this letter and the enclosures (the agenda and handouts provided by your staff at the meeting) will be placed in the NRC's Public Document Room.
We appreciate your cooperation in this matter. If you have any questions regarding this meeting, please contact me at 630/829-9633~
Docket No. 50-237 Docket No. 50-249
Enclosures:
1.
- 2.
Sincerely,
/s/ W. J. Kropp Wayne J. Kropp, Chief Reactor Projects Branch 1 Attendance List Licensee Presentation, Dresden Station Presentation to NRC on Status of CAL Action Items DOCUMENT NAME: A:\\CALMTGTC.414 To reoeive e oapy of this document. lnclcete In the box *c* a Ccipy wilhout ettech/end "E" a Ccipy with llttlldi/end "N" a No oapy UrM\\;olAL nc\\.UMU \\.Ur-T I
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T. J. Maiman, Senior Vice President Distribution:
Nuclear Operations Division D. A. Sager, Vice President, Generation Support H. W. Keiser, Chief Nuclear Operating Officer T. Nauman, Station Manager Unit 1 M. Heffley, Station Manager Units 2 and 3 F. Spangenberg, Regulatory Assurance Manager I. Johnson~ Acting Nuclear Regulatory Services Manager Richard Hubbard Nathan Schloss, Economist Office of the Attorney General State Liaison Officer Chairman, Illinois Commerce Commission Document Control Desk-Licensing Docket File w /encl PUBLIC~ w/encl DRP w/encl Project Manager, NRR w/encl Project Manager Unit 1, NRR w/encl OC/LFDCB w/encl Riii PRR w/encl CAA 1 w/encl (E~Mail)
A. B. Beach, w/encl Riii Enf. Coordinator, w/encl DRS (2) w/encl SRI LaSalle, Drescten, Quad Cities w /encl RAC 1 (E-Mail)
ATTENDANCE LIST Commonwealth Edison (ComEdl Dresden Station J. S. Perry, Site Vice President R. D. Freeman, Site Engineering Manager F, A. Spangenberg, Regulatory Assurance Manager D.
Winchester, Site Quality Verification Manager J.
Basak, Engineering Assistance Group Manager R.
Scott, Independent Safety Evaluation Group E.
Connell, Design Engineering Superintendent Coroorate Office E.
Netzel, Supplier Evaluation Services Director R.
Renuart, Configuration Management and Engineering Assurance Nuclear Regulatory Commission (NRCl G. E. Grant, Director, Division of Reactor Safety (DRS), Riii J. A. Gavula, Acting Chief, D~S, Engineering Specialists Branch 1, Riii G.
Hausman, Reactor Inspector, DRS, Riii W. J. Kropp, Chief, DRP, Branch 1, Riii R. M. Lerch, Project Engineer, DRP, Branch 1, Riii D.
Roth, Resident Inspector, Dresden
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ENCIDSURE 2
- AGENDA DRESDEN STATION PROGRESS MEETING FOR CONFIRMATORY ACTION LETTER APRIL 14, 1997 Russell Freeman Joseph Basak Edward Connell Robert Scott Russell Freeman All Introduction I Opening Remarks.
Dresden Engineering Assistance Group DEAG) Recent Activity.
Peer Group Participation Safety Evaluation Performance Indicator.
Effectiveness Of DEAG Review Of Safety Evaluation.
Comparison of MCIP and 12 System Critical Parameter Review.
CCSW Pump Motor Performance Under Conditions Of Degraded Voltage.
Other DBDs For Which Crib House Water Level Is A Critical Parameter.
Twelve System Closure Design :Sasis Reconstitution Program Review of level 3 Calculation Discrepancies Closing R~marks Status Of Commitments And Current Schedule.
Open Discussion
ComEd DRESDEN STATION Dresden Station Presentation To NRC on Status of CAL Action Items
- April 14, 1997 I
DRESDEN ST AT!ON Russell Freeman Joseph Basak Edward Connell Robe11 Scott Russell Freeman All AGENDA Introduction I Opening Remarks Dresden Engineering Assurance Group (DEAG) Recent Activity Peer Group Participation.
Safety Evaluation Performance Indicator Effectiveness ofDEAG Review of Safety Evaluation Comparison ofMCIP and 12 System Critical Parameter Review CCSW Pump Motor Performance Under Conditions of Degraded Voltage Other DBDs For Which Crib House Water Level Is A Critical Parameter Twelve System Closure Design Basis Reconstitution Program.
Review of Level 3 Calculation Discrepancies Closing Remarks Status of Commitments And Current Schedule Open Discussion
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ComEd DRESDEN STATION I
, Engineering R,. D. Freeman Site Engineering Manager
ComEd DRESDEN STATION l
- 1 I
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Dresden Engineering
. Assurance. Group Jo*e Basak
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DEA G Status
- DRESDEN STATION
- Organization. *
- Significant Work.Acti.vities Completed D3Rl 4 Mod Reviews Switchyard Bypass Temp Alt Support RB Temperature Operability Shutdown Cooling
DEAG Status (cont'd)
DRESDEN STATION
- 3 8 Engineering Products Reviewed 10 Safety Evaluations 7 comments 2 PIF's 6
Operability Assessments 1 comment
Temporary Alterations 0 comments 1
Special Procedures 1 comment Correspondence 3 comments
.J 1
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- DEAG Stlltus (cont'd)
DRESDEN STATION
- ESPT Training *
- Difference Between "Editorial", '.'Design", and "Tech~ical" Change to UFSAR
- Proper Use And Referencing Of Inputs
- Administrative Requirements
- EAG Peer Group
- Corporate Charter and Desk Top Instruction
- Common Classification of Discrepancies
CornEd
. Safety EValuations DRESDEN STATION
.* *. :... ~, *. * *.* '.
- ; : ¥:.
Engineering Performance Indicator
- EAG Review Classification 1,2 Comments but acceptable.
3 Commynts reqµire incorporation for clarity 4
Incorrect references, undocumented assumptions, e
und.ocumented judgments (PIF required) 5 Error. that could affect end result (PIF required)
- Tracking Percentage of 4's and 5's.
ComEd Safety Evalulltions (cont'd)
DRESDEN STATION DEAG Performance Indicator
- Offsite Assessment *
- 6 Areas of Review
. /.
. :*:. ~.~..
- 3 Grad~s* - Unacceptabl~, Satisfactory, Good Tracking% of Unacceptable
- PORC Acceptance
- No rejections for Safety Issues
ComEd Safety Evalulltions (cont'd)
DRESDEN STATION Dresden Safety Evaluation Performance Indicators 80%.
700/o. _ *- ___________ I ____________________ ~ __ -. _______ -. ______ _
60%.
~ 50°/o. - - - - - - - - - -._ - - - - - - - - - - -.*- - - - - - - - - - -*:- - - -. - - _*.. - - -
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40%
30% *-
20% -----------------------------------------
10%. --------------------i----------~----~-~~_:~_:~~
0% -'--~~~~~~~~~~~~-'--~~~~--..~~~~~~~~~~~~---~~~~~-!
Sep-96 Oct-96 t-bv-96 Dec-96 Jan-97 Feb-97 l\\ittr-97
- -+-Offsrte
-a-EAG (3,4,5) EAG (4,5)
CornEd DEA GActivities DRESDEN STATION Planned Activities for April
- Track the Performance of 3 Engineering Outage Projects and Evaluate
- Improve Performance Trending
ComEd DRESDEN STATION Design Engineering CAL Actions E. C. Connell, III
- Design Engineering Superintendent
Presentation Outline DRESDEN STATION
- 12 System Key Parameter Screening
- Closure 1'
- Adequacy and Availability of Design Basis
- Project'-Status
ComEd DRESDEN STATION Screening Verification of Key
- Parameters for Twelve Risk Significant Systems
ComEd ComEd Commitments DRESDEN STATION
- Screening of key operating parameters on the twelve systems most.important from a risk perspective to verify that calculations exist to support those parameters by February 28, 1997.
- The NRC will be immediately informed if critical -
parameters;-on any of the twelve systems are discovered to be. outside of normal acceptance values.
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- Results of the screening will be provided to the NRC on a monthly basis through a meeting and dockete*d response.
ComEd DRESDEN STATION Key Parameter Project Summary
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- Project completed on.Schedule
- A total of 56 PIFs were initiated. Only one resulted in.De*graded Plant Operability
- Discrepancies identified were similar to those identified duriqg the Dresden* self assessment and the NRC ISi
ComEd DRESDEN STATION Summary.of Findings (Continued)
- ISI Corrective Actions are adequate to address
- I I
II the finding
- Engineering Assurance Group Overview
- NEPs Revisions
- Reconstitution or Validation of calculations for portions of Systems affected by Modifications
-* Reconstitution or Validation of the design basis calcul~tions for the 12 risk significant systems
- Review of UFSAR requirement against Design Basis Doct1nients
.. 12 System Key Parameter ComEd..
DRESDENSTATION Screening Closure l.I
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- Response to Questions from February CAL Meeting
- Key Parameter Training
- Key Para*meter Maintenance
ComEd Response to CAL Questions DRESDEN STATION Compare MCIP to Key Parameter Review Purpose
- Results MCIP Identify latent material condition problems which may affect system performance and reliability for 27 systems Review operations, maintenance and testing of Systems/Components 494 latent problem observati.ons mainly related to maintenance, procedure changes or training related.
Nine related to design basis documents
- Confusing, inaccurate or missing design basis documents for non-safety systems Key Parameter Review Verify that key parameters are supported by design basis calculations for 12 risk significant systems Review licensing and design basis documents for Systems/Components 56 discrepancies related to Licensing basis and design basis documents and calculations.
- Adequate calculation support'for safety systems
- Few calculations for no-safety
. systems
- The two projects were complementary in scope
ComEd Response to CAL Questions DRESDEN STATION I
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- Review :DBDs for which Crib House Water Level is. a Parameter
- SW and EDG system NPSH evaluation use 501' as the minimum water level, Adequate NPSH With 500'
'I,
- FP system design basis NPSH can not be located, Adequate NPSH with 500'
- PIFs initiated to resolve the discrepancies related to SW, EDG and FP systems
ComEd Response to CAL Questions DRESDEN STATION
- I
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- CCSW.pump motor performance under degrade*d voltage conditions
- Motors will operate continuously, without damage or loss of performance, at 90% rated voltage (3600V). Dresden
- historically has not experienced operating voltages below 3600V on.-Buses 23 & 24 since it will indicate a severe degradation of the Off Site Power Grid impacting the system stability
- LOOP or sustained low voltage conditions on Buses 23 & 24 would cause tripping of the CCSW pu1np motor supply
. breaker by the bus under voltage relay
- DGA-12 lists manual operator actions to run the CCSW pump while ifs supply bus is fed from the EDG
Key Parameter Training DRESDEN STATION
- All Dresden Engineering Staff Trained
- Trainipg Covered Objective, Selection, Results and Maintenance of 12 SysteITI Key Parameters
... ~
- Training Completed During March 1997 as part ofESPT
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ComEd Key Parameter Maintenance DRESDEN STATION
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- Procedure Revisions to Ensure Maintenance
. of 12 s*ystems Key Parameters
. - Plant Modification and Calculation, UFSAR, or Technic.al Specification Revision Procedures
~ Procedure Revisions in Progress
- Scheduled Completion: April 30, 1997
ComEd' DRESDEN STATION Adequacy and Availability of Design Basis Project Two Year Corporate Program e
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ComEd Project Goals*
DRESDEN ST A TION
- Consistency between UFSAR, TSUP, Design Basis documents and calculations, plant procedures and plant configuration
- Ownership and understanding of plant Design Basis by ComEd personnel
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- '.High confidence that plant is operating within Design *Basis
- Fast retrieval of system *Key Parameters
ComEd ProjeCt Status DRESDEN STATION i
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- Logistic requirements established (space.,.
computers, etc.).
- Project plan and four engineering procedur,es developed
- Pilot program* initiated
- Staffing initiated
- ComEd DRESDEN STATION S & L Audit Calculation Review*
Bob Scott
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- ISEG Supervisor Dresden i
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CornEd DRESDEN STATION Six Significant Errors Identified i
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Four Identified by SQV/Audit
- One Level 3 Found during ISEG Surveillance
- One Level 3 *Found during Audit
- Two Level 2s Found during the Audit
DRESDEN STATION Six Significant Errors Identified rCONT'D)
Two Identified by ISI
- Used to validate ISI findings *
- -Used to verify S & L Corrective Action Program.
ComEd DRESDEN STATION Significant Errors Level 3
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- 0591-387-003 (SQV)
Containment Venting
- VR-10 (SQV).
Rx Bldg. Volume
- A TD-0216 (ISi)
CCSW Pp Disch Pressure
- ATD-0253 (ISi)
CCSW Pp Rm Cooler Orifice
DRESDEN STATION
- Significant Errors Level 2
- .~.{*.* -.,.
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- MPED 9621-100-00 (SQV)
- DRE96-0134 (SQV)
RBV Chiller -
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