IR 05000261/2021001
| ML21130A112 | |
| Person / Time | |
|---|---|
| Site: | Robinson  |
| Issue date: | 05/10/2021 |
| From: | David Dumbacher NRC/RGN-II/DRP/RPB3 |
| To: | Kapopoulos E Duke Energy Progress |
| References | |
| IR 2021001 | |
| Download: ML21130A112 (12) | |
Text
May 10, 2021
SUBJECT:
H. B. ROBINSON STEAM ELECTRIC PLANT - INTEGRATED INSPECTION REPORT 05000261/2021001
Dear Mr. Kapopoulos Jr.:
On March 31, 2021, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at H. B. Robinson Steam Electric Plant. On April 14, 2021, the NRC inspectors discussed the results of this inspection with you and other members of your staff. The results of this inspection are documented in the enclosed report.
No findings or violations of more than minor significance were identified during this inspection.
This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations 2.390, Public Inspections, Exemptions, Requests for Withholding.
Sincerely,
/RA/
David E. Dumbacher, Chief Reactor Projects Branch 3 Division of Reactor Projects Docket No. 05000261 License No. DPR-23
Enclosure:
As stated
Inspection Report
Docket Number: 05000261 License Number: DPR-23 Report Number: 05000261/2021001 Enterprise Identifier: I-2021-001-0078 Licensee: Duke Energy Progress, LLC Facility: H. B. Robinson Steam Electric Plant Location: Hartsville, SC Inspection Dates: January 01, 2021 to March 31, 2021 Inspectors: A. Beasten, PhD, Resident Inspector B. Caballero, Senior Operations Engineer M. Fannon, Senior Resident Inspector D. Lanyi, Senior Operations Engineer Approved By: David E. Dumbacher, Chief Reactor Projects Branch 3 Division of Reactor Projects Enclosure
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting an integrated inspection at H. B. Robinson Steam Electric Plant, in accordance with the Reactor Oversight Process. The Reactor Oversight Process is the NRCs program for overseeing the safe operation of commercial nuclear power reactors. Refer to https://www.nrc.gov/reactors/operating/oversight.html for more information.
List of Findings and Violations
No findings or violations of more than minor significance were identified.
Additional Tracking Items
None.
PLANT STATUS
Unit 2 operated at or near rated thermal power for the entire inspection period.
INSPECTION SCOPES
Inspections were conducted using the appropriate portions of the inspection procedures (IPs) in effect at the beginning of the inspection unless otherwise noted. Currently approved IPs with their attached revision histories are located on the public website at http://www.nrc.gov/reading-rm/doc-collections/insp-manual/inspection-procedure/index.html. Samples were declared complete when the IP requirements most appropriate to the inspection activity were met consistent with Inspection Manual Chapter (IMC) 2515, Light-Water Reactor Inspection Program - Operations Phase. The inspectors performed plant status activities described in IMC 2515, Appendix D, Plant Status, and conducted routine reviews using IP 71152, Problem Identification and Resolution. The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel to assess licensee performance and compliance with Commission rules and regulations, license conditions, site procedures, and standards.
Starting on March 20, 2020, in response to the National Emergency declared by the President of the United States on the public health risks of the Coronavirus Disease 2019 (COVID-19),resident inspectors were directed to begin telework and to remotely access licensee information using available technology. During this time, the resident inspectors performed periodic site visits each week; conducted plant status activities as described in IMC 2515, Appendix D, Plant Status; observed risk-significant activities; and completed on-site portions of IPs. In addition, resident and regional baseline inspections were evaluated to determine if all or portions of the objectives and requirements stated in the IP could be performed remotely. If the inspections could be performed remotely, they were conducted per the applicable IP. In some cases, portions of an IP were completed remotely and on-site. The inspections documented below met the objectives and requirements for completion of the IP.
REACTOR SAFETY
71111.01 - Adverse Weather Protection
Impending Severe Weather Sample (IP Section 03.02) (1 Sample)
- (1) The inspectors evaluated the adequacy of the overall preparations to protect risk-significant systems from impending severe weather of thunderstorms with the possibility of large hail, damaging winds, and tornadoes on March 18, 2021.
71111.04 - Equipment Alignment
Partial Walkdown Sample (IP Section 03.01) (2 Samples)
The inspectors evaluated system configurations during partial walkdowns of the following systems/trains:
- (1) A emergency diesel generator (EDG) and motor driven auxiliary feedwater (MDAFW) system while the B EDG was out of service for planned surveillance activities on January 13, 2021
January 26, 2021 Complete Walkdown Sample (IP Section 03.02) (1 Sample)
- (1) The inspectors evaluated system configurations during a complete walkdown of the A and B EDGs on March 29, 2021.
71111.05 - Fire Protection
Fire Area Walkdown and Inspection Sample (IP Section 03.01) (6 Samples)
The inspectors evaluated the implementation of the fire protection program by conducting a walkdown and performing a review to verify program compliance, equipment functionality, material condition, and operational readiness of the following fire areas:
- (1) Fire Zone 3, SI pump room, on January 19, 2021
- (2) Fire Zone 6, MDAFW pump room, on January 21, 2021
- (3) Fire Zone 14, diverse and flexible coping strategies (FLEX) emergency diesel generator area, on February 9, 2021
- (4) Fire Zone 15, auxiliary building second level, on February 11, 2021
- (5) Fire Zone 2, A EDG room, on February 23, 2021
- (6) Fire Zone 4, charging pump room, on February 23, 2021
71111.06 - Flood Protection Measures
Inspection Activities - Internal Flooding (IP Section 03.01) (1 Sample)
The inspectors evaluated internal flooding mitigation protections in the:
- (1) MDAFW pump room (FLC060) on March 21, 2021
71111.11B - Licensed Operator Requalification Program and Licensed Operator Performance
Licensed Operator Requalification Program (IP Section 03.04) (1 Sample)
- (1) The inspectors completed an inspection to verify the licensees ability to evaluate the performance of their licensed operators during the conduct of examinations, to assess their ability to properly develop and administer requalification annual operating tests and biennial written examinations, to evaluate the performance of the control room simulator and their testing and maintenance of the simulator, to ensure that licensed individuals satisfy the conditions of their licenses, and to assess their effectiveness in ensuring that operator license conditions are satisfied.
Biennial Requalification Written Examinations The inspectors evaluated the quality of the licensed operator biennial requalification written examinations that were administered in February and March 2021.
Annual Requalification Operating Tests The inspectors evaluated the adequacy of the facility licensees annual requalification operating test.
Administration of an Annual Requalification Operating Test The inspectors evaluated the effectiveness of the facility licensee in administering requalification operating tests required by 10 CFR 55.59(a)(2) and that the facility licensee is effectively evaluating their licensed operators for mastery of training objectives.
Requalification Examination Security The inspectors evaluated the ability of the facility licensee to safeguard examination material, such that the examination is not compromised.
Remedial Training and Re-examinations The inspectors evaluated the effectiveness of remedial training conducted by the licensee, and reviewed the adequacy of re-examinations for licensed operators who did not pass a required requalification examination.
Operator License Conditions The inspectors evaluated the licensees program for ensuring that licensed operators meet the conditions of their licenses.
Control Room Simulator The inspectors evaluated the adequacy of the facility licensees control room simulator in modeling the actual plant, and for meeting the requirements contained in 10 CFR 55.46.
71111.11Q - Licensed Operator Requalification Program and Licensed Operator Performance
Licensed Operator Performance in the Actual Plant/Main Control Room (IP Section 03.01) (1 Sample)
- (1) The inspectors observed and evaluated licensed operator performance in the Control Room during the following:
1) During MST-013-1, MST-013-2, and MST-013-3, steam generator water level protection channel testing, concurrent with OST-401-2, B EDG Slow Speed Start, on January 13, 2021 2) In response to a fan failure on C Main Transformer, on March 8, 2021
71111.12 - Maintenance Effectiveness
Maintenance Effectiveness (IP Section 03.01) (1 Sample)
The inspectors evaluated the effectiveness of maintenance to ensure the following structures, systems, and components (SSCs) remain capable of performing their intended function:
- (1) Nuclear condition report (NCR) 2370335, A charging pump casing leak
71111.13 - Maintenance Risk Assessments and Emergent Work Control
Risk Assessment and Management Sample (IP Section 03.01) (6 Samples)
The inspectors evaluated the accuracy and completeness of risk assessments for the following planned and emergent work activities to ensure configuration changes and appropriate work controls were addressed:
- (1) MST-014-2, MST-014-3, and MST-014-4, steam generator pressure protection channel testing, on January 7, 2020
- (2) B MDAFW pump relay replacement on January 12, 2021
- (3) MST-013, steam generator water level protection channel testing concurrent with the B EDG slow speed start, on January 13, 2021
- (4) A SI pump and cooling unit maintenance activities on January 26, 2021
- (5) Cross-train work on A charging pump while the B EDG out of service for 24-month maintenance outage, on February 22, 2021
- (6) C SI pump maintenance activities on March 23, 2021
71111.15 - Operability Determinations and Functionality Assessments
Operability Determination or Functionality Assessment (IP Section 03.01) (3 Samples)
The inspectors evaluated the licensee's justifications and actions associated with the following operability determinations and functionality assessments:
- (1) NCR 2367074, pressurizer protection low pressure alarm remained lit following restoration from surveillance test on January 26, 2021
- (2) NCR 2374062, dedicated shutdown diesel ventilation fan tripped on March 16, 2021
- (3) NCR 2376435, A component cooling water elevated motor temperatures on March 31, 2021
71111.19 - Post-Maintenance Testing
Post-Maintenance Test Sample (IP Section 03.01) (6 Samples)
The inspectors evaluated the following post-maintenance test activities to verify system operability and functionality:
- (2) WO 20417495, A SI pump maintenance activities on January 26, 2021
- (4) OP-604, Diesel Generators A and B, Rev. 126, for B EDG following 24-month maintenance outage, on February 24-25, 2021
- (5) WO 20432663, A charging pump leak repairs on March 5, 2021
- (6) WO 20406971, A charging pump oil change and speed control linkage lubrication on March 24, 2021
71111.22 - Surveillance Testing
The inspectors evaluated the following surveillance tests:
Surveillance Tests (other) (IP Section 03.01)
- (1) MST-014-2, MST-014-3, and MST-014-4, steam generator pressure protection channel testing, on January 7, 2021
- (2) MST-013-1, MST-013-2, and MST-013-3, steam generator water level protection channel testing, on January 13, 2021
- (3) OST-401-2, B EDG slow speed start, on January 14, 2021
- (4) OST-409-1, A EDG fast start surveillance test on February 2, 2021
Inservice Testing (IP Section 03.01) (1 Sample)
- (1) OST-151-3, C SI pump surveillance test on March 23, 2021
FLEX Testing (IP Section 03.02) (1 Sample)
- (1) OST-453, Fukushima FLEX diesel generator 1A and 1B surveillance test on February 17, 2021
71114.06 - Drill Evaluation
Drill/Training Evolution Observation (IP Section 03.02) (1 Sample)
The inspectors evaluated:
- (1) The inspectors evaluated the conduct of a routine emergency planning drill on February 2, 2021. The drill involved a mudslide impacting plant access, primary to secondary leak, a faulted steam generator, and fuel failure.
OTHER ACTIVITIES - BASELINE
===71151 - Performance Indicator Verification The inspectors verified licensee performance indicators submittals listed below:
MS09: Residual Heat Removal Systems (IP Section 03.08) ===
- (1) January 1, 2020 to December 31, 2020
MS10: Cooling Water Support Systems (IP Section 03.09) (1 Sample)
- (1) January 1, 2020 to December 31, 2020
BI02: RCS Leak Rate Sample (IP Section 03.11) (1 Sample)
- (1) January 1, 2020 to December 31,
INSPECTION RESULTS
No findings were identified.
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
- On April 14, 2021, the inspectors presented the integrated inspection results to Ernest J.
Kapopoulos Jr. and other members of the licensee staff.
- On February 25, 2021, the inspectors presented the licensed operator requalification inspection results to Ernest J. Kapopoulos Jr. and other members of the licensee staff.
DOCUMENTS REVIEWED
Inspection Type Designation Description or Title Revision or
Procedure Date
71111.11B Fire Plans CR-120 Respond to Pressurizer Instrument Failure Rev 0
Miscellaneous 2021 BRE RO 2021 BRE RO 2/25/2021
Exam 3
21 BRE 2021 BRE Scenario Rev 0
Scenario 12
21 BRE 2021 BRE Scenario Rev 0
Scenario 2
21 BRE 2021 BRE Scenario Rev 0
Scenario 6
21 BRE 2021 BRE Scenario Rev 0
Scenario 7
21 BRE SRO 2021 BRE SRO Exam 2/25/2021
Exam 3
ADM-037 Subcooled Margin Calculation Rev 0
ADM-039 Flag Annunciators Rev 0
CR-023 Transfer of Aux Electric Loads Rev 0
CR-124 Terminate an Inadvertent CV Spray Actuation Rev 0
CR-66 Respond to a Loss of CCW to the RCP Motor Coolers Rev 0
IP-127 Respond to a Loss of Instrument Air Rev 0
IP-134 Perform Control Room Emergency HVAC Unit Emergency Rev 0
Cooling Alignment
IP-18 Control Steam Generator PORVs at Secondary Control Rev 0
Panel
IP-184 Manually Initiate IVSW Rev 0
Medical Records Biannual Physical Records (5 sampled) 2/22/2021
Simulator Full Power Steady State Comparison Test 6/3/2019
Performance Test
- 2.0.2
Simulator Maximum Design Load Rejection Test 5/15/2019
Performance Test
- 4.11
Simulator Simultaneous Closure of MSIVs Transient Test 5/13/2019
Inspection Type Designation Description or Title Revision or
Procedure Date
Performance Test
- 4.3
Simulator Turbine Trip from 37% Power Transient Test 5/14/2019
Performance Test
- 4.6
Simulator DBA Main Steam Line Break Transient Test 5/14/2019
Performance Test
- 4.9
Work Orders CMS 20-16949 Simulator Service Request - Perform Weekly Check 4/13/2020
CMS 20-17039 Simulator Service Request - Evaluate for ATWS with 6/4/2020
LBLOCA Response
CMS 20-17188 Simulator Service Request - Modify Governor Valve 9/17/2020
Response
CMS 21-17330 Simulator Service Request - VCT Pressure Rises too Fast 1/12/2021
10