ML14181A173
| ML14181A173 | |
| Person / Time | |
|---|---|
| Site: | Robinson  |
| Issue date: | 12/23/1993 |
| From: | Merschoff E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Dietz C CAROLINA POWER & LIGHT CO. |
| References | |
| NUDOCS 9401040370 | |
| Download: ML14181A173 (31) | |
Text
DEC 23 1993 Docket No.:
50-261 License No.:
DPR-23 Carolina Power and Light Company ATTN: Mr. C. R. Dietz Vice President H. B. Robinson Steam Electric Plant Unit 2 P. 0. Box 790 Hartsville, SC 29550-0790 Gentlemen:
SUBJECT:
MEETING
SUMMARY
- ROBINSON UNIT 2 This refers to the management meeting conducted in the Region II Office on December 20, 1993. The purpose of the meeting was to discuss the results of your investigation into the miscalibration of nuclear instrumentation and the readiness to restart the Robinson Plant. A list of attendees and a copy of your slides are enclosed.
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 its enclosures will be placed in the NRC Public Document Room.
Should you have any questions concerning this matter, please contact us.
Sincerely, Original signed by:
Jon R. Johnson/for Ellis W. Merschoff, Director Division of Reactor Projects
Enclosures:
- 1. List.of Attendees
- 2. Licensee Slides cc w/encls:
(See page 2) 030065 9401040370 931223 PDR ADOCK 05000261 P
DEC 23 1993 Carolina Power and Light Company 2
cc w/encls:
M. P. Pearson Plant Manager H. B. Robinson Steam Electric Plant P. 0. Box 790 Hartsville, SC 29550 H. W. Habermeyer, Jr.
Vice President Nuclear Services Department Carolina Power & Light Company P. 0. Box 1551 - Mail OHS7 Raleigh, NC 27602 D. B. Waters, Manager Regulatory Compliance H. B. Robinson Steam Electric Plant P. 0. Box 790 Hartsville, SC 29550 Max Batavia, Chief Bureau of Radiological Health Dept. of Health and Environmental Control 2600 Bull Street Columbia, SC 29201 Dayne H. Brown, Director Division of Radiation Protection N. C. Department of Environment, Commerce & Natural Resources P. 0. Box 27687 Raleigh, NC 27611-7687 McCuen Morrell, Chairman Darlington County Board of Supervisor County Courthouse Darlington, SC 29535 H. Ray Starling Vice President - Legal Department Carolina Power and Light Co.
P. 0. Box 1551 Raleigh, NC 27602 Karen E. Long Assistant Attorney General State of North Carolina P. 0. Box 629 Raleigh, NC 27602 (cc w/encls cont'd - See page 3)
Carolina Power and Light Company 3
DEC 23 1993 (cc w/encls cont'd)
Robert P. Gruber Executive Director Public Staff - NCUC P. 0. Box 29520 Raleigh, NC 27626-0520 Public Service Commission State of South Carolina P. 0. Box 11649 Columbia, SC 29211 bcc w/encls:
H. Christensen, RH B. Mozafari, NRR Document Control Desk NRC Resident Inspector U. S. Nuclear Regulatory Commission Route 5, Box 413 Hartsville, SC 29550 RII:DR4 RHI:
P JStarefos DVerrelli JJo son 12/73/93 12/p/93 12/v993
ENCLOSURE I List of Attendees Carolina Power and Light Company:
W. S. Orser, Executive Vice President C. R. Dietz, Vice President, Robinson M. P. Pearson, Plant General Manager, Robinson R. E. Rogan, Manager, Licensing S. Zimmerman, Manager, Nuclear Fuels C. S. Hinnant, Director, Site Operations, Brunswick J. C. Guibert, Consultant L. Loflin, Manager, Nuclear Assessment Department Nuclear Requlatory Commission:
S. D. Ebneter, Regional Administrator, Region II (R11)
G. C. Lainas, Assistant Director for Region II Reactors, Office of Nuclear Reactor Regulation (NRR)
E. W. Merschoff, Director, Division of Reactor Projects (DRP), RH A. F. Gibson, Director, Division of Reactor Safety (DRS), RH J. R. Johnson, Deputy Director, DRP, RH J. P. Jaudon, Deputy Director, DRS, RH T. A. Peebles, Chief, Operations Branch, DRS, RH S. S. Bajwa, Acting Director, Project Directorate II-1, NRR D. M. Verrelli, Chief, Reactor Projects Branch 1, DRP, RII B. L. Mozafari, Project Manager, NRR W. T. Orders, Senior Resident Inspector, DRP, RH J. L. Starefos, Project Engineer, DRP, RII E. Wang, Reactor Engineer, Intern, NRR
ENCLOSURE 2 Confirmatory Action Letter (November 19, 1993)
Readiness To Restart CP&L Carolina Power & Light Robinson Nuclear Project December 20, 1993
Readiness To Restart Agenda Introduction W. S. Orser Purpose, Objectives, Overview C. R. Dietz Nuclear Instrumentation/
C. S. Hinnant Operator Performance Root Causes Corrective Actions Self Assessment Results, and C. R. Dietz Restart Plan.
Startup and Power Ascension M. P. Pearson Conclusion C. R. Dietz CP&L Carolina Power & Light
Purpose and Objectives Purpose Confirmatory Action Letter (CAL) Status o
Nuclear Instrumentation/Operator Performance Root Causes Corrective Actions o
Readiness to Restart Self Assessment Startup and Power Ascension Plans Objectives Provide Status Discuss CAL Closure Process CP&L Carolina Power & Light
Presentation Overview Event Evaluations
-Fuel
- Nuclear Instrumentation/Operator Performance Corrective Actions Additional Actions CP&oL Readiness For Restart Program Carolina Power & Light
Nuclear Instrumentation/Operator Performance Event Evaluation Team Multi-Discipline Highly Qualified Independence Ensured 0
INPO Techniques Utilized CP&L Carolina Power & Light
Nuclear Instrumentation/Operator Performance Simplified Events And Causal Factors PRE-JOB BRIEFING CORRECTIVE NOT ADEQUATE ACTION FROM HARRIS EVENT CORRECTIVE NO INFRQUENTLY EMPIRICALLY ACTION FROM PERFORMED EVOLUTION DERIVED HARRIS EVENT BRIEF BYHBR INCORRECT FMP-002 NI CURRENTS POWER RANGE SYNC METHODOLOGY CALCULATED TRIP RESET REACTOR INADEQUATE DEVELOPED PPO TO 45%
CRITICAL BRIEF GRID o PLP-37 DID NOT REQUIRE o NSD FUELS SECTION A BRIEF FOR GP-005 NOT AWARE OF WMETHOD FOR HARRIS o OPS MANAGEMENT DETERMINED THAT o LIMITATIONS OF PLACING CASE DETERMINATION METHOD WAS NOT IN OPS PROCEDURE RECOGNIZED WAS NOT APPROPRIATE CP&L Carolina Power & Light
Nuclear Instrumentation/Operator Performance Simplified Events And Causal Factors FOCUS ON IR OPERATOR FOCUS GP-005 AND NO TRIPS ON ACHIEVING PRECAUTION S/G LEVEL NOT FOLLOWED STABILITY POWER TECH SUPPORT P-10 B/S IR=20%
INCREASED POWER VERIFIED WHEN POWER TO 20%
ISMATCH BETWEEN MANAGER ANDIR ONOTON POWER MW, N, AND QUESTIONS TRIPS O
BOKDRECOGNIZEDDET (30% ACTUAL)
BY OPS PERCENT PWR o OPERATOR DID o TRAINING DID NOT o IMPORTANCE NOT QUESTION ALTER OPERATOR'S OF USING DIVERSE BELIEF THAT ACHIEVING INDICATIONS NOT IN INDICATIONS S/G LEVEL STABILITY UNDERSTOOD OR IN INDCATION WAS PRIMARY FOCUS DONE VS. REACTOR POWER o DELTA T RECORDER LEVEL SCALED IN o F ONLY Carolina Power & Light
Nuclear Instrumentation/Operator Performance Cause Failure to Effectively Implement Corrective Actions from Similar Events CP&L Carolina Power & Light
3 I
I I
I I
3 I
3 i
I I
I I
1 I ~
~I L
I 1--A~
Nuclear Instrumentation/Operator Performance Principal Factor SOER 90-03 Corrective Actions Short Lived Contributing Factors NI Current Adjustment Method Incorrect for this Core Operators Not Sensitive to NI Inaccuracies
- Information and Training on Low Leakage Core Was Weak Power Ascension Not Identified as an Infrequently Performed Evolution CP&L Carolina Power & Light
Nuclear Instrumentation/Operator Performance Corrective Actions Managerial Methods Training Procedures Work Practices Man-Machine Interface CP&L Carolina Power & Light
Nuclear Instrumentation/Operator Performance Proposed Corrective Actions Managerial Methods Independence Between Calculation Preparer and Reviewer Experienced Reactor Engineering Staff Available and Involved Importance of Barriers to not Repeat Industry Events Expectations for Pre-job Briefings CP&L Carolina Power & Light
Nuclear Instrumentation/Operator Performance Proposed Corrective Actions Procedures Proper Methodology Used for New Cores Independent Indications and Guidance for Checks and Holds Shift Turnover Briefings Expectations For Management Designated Monitor Work Practices Plan for PLP-037* Case Determination for Each Plant Procedure PLP-037 Evolutions in Outage Plans Format for the Outage Shift Turnover that Ensures PLP-037 Case Determination is Discussed CP&L Carolina Power & Light PLP-037 - Infrequently Performed Tests and Evolutions
Nuclear Instrumentation/Operator Performance Proposed Corrective Actions Training 0
Improved Simulator and/or Classroom Training Operator Fundamental Knowledge of Monitoring and Controlling Primary Plant Parameters Develop Interface Agreement Relative to Special Evolution Training Periodic Training to Key Managers on PLP-037 Man-Machine Interface Label RCS Delta-T Recorder CP&L Carolina Power & Light
Corrective Actions Status All 16 Pre-startup Corrective Actions are Complete or In Progress!!
CP&L Carolina Power & Light
Program For Restart CP&L Carolina Power & Light
Self Assessment Results 0
Management Oversight and Control Operator Sensitivity Management Expectations "Questioning Attitude" Practices Operating Experience Usage Work Management and Event Analysis Ownership and Accountability CP&L Carolina Power & Light
Restart Plan Purpose Comprehensive and Structured Self-Assessment System Readiness Organizational Readiness Operational Readiness CP&L Carolina Power & Light
Restart Plan System Readiness Assessment System Engineers Will Affirm That Their System is in a State of Readiness to Support Safe and Reliable Startup and Power Operation Through the Next Operating Cycle (39 Systems)
CP&L Carolina Power & Light
Restart Plan Organizational Readiness Assessment Selected Unit Managers Will Affirm That Their Organization is in a State of Readiness to Support Safe and Reliable Startup and Power Operation Through the Next Operating Cycle (6 Key Units)
CP&L Carolina Power & Light
Restart Plan Operational Readiness Assessment Shift Supervisors Will Affirm on Behalf of Their Crew That the Plant Material Condition and the Crew Are in a State of Readiness to Support Safe and Reliable Startup and Power Operation Through the Next Operating Cycle (5 Shifts)
CP&L Carolina Power & Light
Readiness To Restart Plan Current Schedule Advise NRC System Readiness Reviews/
Of Intentto System Engineer Affirmations 12/28 Heatup 12/1012/23System Readines Collective Evaluation Joint SRO/System Engineer Walkdowns 112/31 12/13Operational 12/27 PGM 12/30
, RNP Readiness Recommends Authorizes Collective Heatup
\\Plant Heatup Evalu Operational Readiness Reviews/Affirmations I
NSRC Review 12/131221/8 12/28 Organizational ReadinessReviews/
12/15 Affirmations 12/22 NAD Assessment Of Restart Readiness 12/13 12/30
Startup and Power Ascension Plan A Detailed, Structured Plan to Ensure Safe, Well-Controlled, and Deliberate Heatup, Reactor Startup, and Power Ascension Plan Attributes Include:
Startup Organization Assessment Holdpoints Specific Performance Objectives CP&L Carolina Power & Light
Startup Organization Unit 2 Plant Manager Operations Power Ascension Manager Test Manager On Shift - 24 Hours Shift Supervisor Startup Duty Manager I1 Shift Technical Senior Shift Test Coordinator Advisor Reactor Operator (As Needed)
Shift Operators Permanent Organization
______-------_Startup Organization Carolina Power & Light
Startup & Power Ascension Schedule 12/31 1/1 1/3 1/7 1/10 1/13...........
1/27 HP #5HP6 Approval To Exceed FRomlTan 70%/ PowerFrmPa HP #4 Approval To Exceed 30% Power*
Full Power HP #3 Approval To Go Critcal"Power
>70%
HP #1 1HP #2 Approval For Approval To Exceed Heatup*
350 DegreesPoe>3%
Heatup Criticality
- Inform NRC
- NRC Concurrence Also Required CP&L Carolim Power & Light
Readiness To Restart Restart Thought Process Review Material Condition Problems Noted in Past Outages Review Status of Temp Mods Review Status of Annunciator Review Category 1-4 Work Orders Review INFO Outage Assessment Report Review NAD Outage Assessment Report Review Outstanding ACRs Review Outstanding NRC and INPO Items Review JCOs Review Procedures Required For Startup Review of Applicable SOERs Recommendations CP&L Carolina Power & Light BACKUP
Conclusion Effective Root Cause Analyses Comprehensive Corrective Actions Lessons Effectively Learned Emphasis on Self-Assessment Status of Fuel Investigation Assessment Physical Inspection Reverification of Assumptions and Calculations Core Reconfigured, Head Assembly Complete CP&L Carolina Power & Light
Conclusion Confirmatory Action Letter Items
- 1.
Conducted a Detailed Root Cause Analysis.
- 2.
Met With NRC Prior to Completing Core Configuration Alterations.
- 3.
Determined Cause of NI Anomalies. Corrective Actions Complete Before Startup.
- 4.
Evaluated Operator Performance and Procedures.
Corrective Actions and Training Complete Before Startup.
- 5.
Met With NRC (TODAY). Will Obtain Concurrence Prior to Entering Startup Mode.
CP&L Carolina Power & Light