IR 05000261/2020003
| ML20304A308 | |
| Person / Time | |
|---|---|
| Site: | Robinson  |
| Issue date: | 10/30/2020 |
| From: | Randy Musser NRC/RGN-II/DRP/RPB3 |
| To: | Kapopoulos E Duke Energy Progress |
| References | |
| IR 2020003 | |
| Download: ML20304A308 (10) | |
Text
October 30, 2020
SUBJECT:
H. B. ROBINSON STEAM ELECTRIC PLANT - INTEGRATED INSPECTION REPORT 05000261/2020003
Dear Mr. Kapopoulos:
On September 30, 2020, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at H. B. Robinson Steam Electric Plant. On October 20, 2020, 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/
Randall A. Musser, 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: 05000261/2020003 Enterprise Identifier: I-2020-003-0055 Licensee: Duke Energy Progress, LLC Facility: H. B. Robinson Steam Electric Plant Location: Hartsville, SC Inspection Dates: July 01, 2020 to September 30, 2020 Inspectors: A. Beasten, PhD, Resident Inspector M. Fannon, Senior Resident Inspector S. Sanchez, Senior Emergency Preparedness Inspector M. Schwieg, Reactor Inspector Approved By: Randall A. Musser, 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 began the inspection period at rated thermal power and remained at or near rated thermal power for the remainder of the 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 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 (COVID-19), resident and regional 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, increasing the amount of time on site as local COVID-19 conditions permitted.
As part of their onsite activities, resident inspectors conducted plant status activities as described in IMC 2515, Appendix D; 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 portion 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 during Tropical Storm Isaias on August 3, 2020.
71111.04 - Equipment Alignment Partial Walkdown Sample (IP Section 03.01) (3 Samples)
The inspectors evaluated system configurations during partial walkdowns of the following systems/trains:
(1) A safety injection (SI) while B SI was out of service for maintenance activities on July 16, 2020 (2) 'B' emergency diesel generator (EDG) following the monthly slow start on August 17, 2020
(3) A and B motor driven auxiliary feedwater (MDAFW) during steam driven auxiliary feedwater (SDAFW) maintenance activities on September 8, 2020 Complete Walkdown Sample (IP Section 03.02) (1 Sample)
(1) The inspectors evaluated system configurations during a complete walkdown of the SI system on September 17, 2020.
71111.05 - Fire Protection Fire Area Walkdown and Inspection Sample (IP Section 03.01) (5 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 1, 'B' EDG room on July 13, 2020 (2) Fire Zone 2, A EDG room, on July 16, 2020 (3) Fire Zone 20, emergency switchgear rooms and electrical equipment area, on August 20, 2020 (4) Fire Zone 18 and 19, cable spreading room, on September 22, 2020 (5) Fire zone 7, auxiliary building central hallway, on September 29, 2020 Fire Brigade Drill Performance Sample (IP Section 03.02) (1 Sample)
(1) The inspectors evaluated the onsite fire brigade training and performance during an announced fire drill on September 10, 2020.
71111.06 - Flood Protection Measures Cable Degradation (IP Section 03.02) (1 Sample)
The inspectors evaluated cable submergence protection in:
(1) M-50A and M-50B service water pump motor and valve cable vaults 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 main control room during a malfunction of control rod position indication on July 21, 2020.
Licensed Operator Requalification Training/Examinations (IP Section 03.02) (2 Samples)
(1) The inspectors observed and evaluated licensed operator requalification training on August 11, 2020.
(2) The inspectors observed and evaluated licensed operator requalification training on September 30, 2020.
71111.12 - Maintenance Effectiveness Maintenance Effectiveness (IP Section 03.01) (2 Samples)
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) 2313436, A component cooling water (CCW) under-voltage trip attachment failed testing (2) NCR 2338716, 'A' service water booster pump (SWBP) water intrusion into oil reservoir 71111.13 - Maintenance Risk Assessments and Emergent Work Control Risk Assessment and Management Sample (IP Section 03.01) (7 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) B power range nuclear instrument drawer replacement from July 6, 2020 to July 8, 2020 (2) C CCW pump inoperable for maintenance on July 20, 2020 (3) B residual heat removal pump (RHR) maintenance and testing activities on July 22, 2020 (4) Pressurizer water level protection testing on July 28, 2020 (5) A MDAFW maintenance activities on August 5, 2020 (6) SDAFW maintenance and testing on September 8, 2020 (7) C charging pump maintenance activities on September 15, 2020 71111.15 - Operability Determinations and Functionality Assessments Operability Determination or Functionality Assessment (IP Section 03.01) (4 Samples)
The inspectors evaluated the licensee's justifications and actions associated with the following operability determinations and functionality assessments:
(1) NCR 2340285, Rod position indication failure due to water intrusion on July 21, 2020 (2) NCR 2313436, A CCW undervoltage trip attachment failed test on August 11, 2020 (3) NCR 2342647, A SWBP oil discoloration and elevated temperatures following maintenance activities on September 3, 2020 (4) NCR 2345845, Unsatisfactory test results of service water check valve during service water inservice testing on September 14, 2020 71111.19 - Post-Maintenance Testing Post-Maintenance Test Sample (IP Section 03.01) (7 Samples)
The inspectors evaluated the following post maintenance test activities to verify system operability and functionality:
(1) Work Order (WO) 20295643, NI-1B power range nuclear instrument calibration following the drawer replacement on July 7, 2020 (2) WO 20359819, B RHR pump maintenance activities on July 22, 2020 (3) WO 20106087, A SWBP maintenance activities on August 4, 2020 (4) WO 20302053, A MDAFW maintenance activities on August 5, 2020 (5) WO 20419337, water cooled condensing unit 1B tripped on low oil pressure on September 2, 2020 (6) WO 20294854, SDAFW maintenance activities on September 8, 2020 (7) WO 20378311, C charging pump maintenance activities on September 15, 2020 71111.22 - Surveillance Testing The inspectors evaluated the following surveillance tests:
Surveillance Tests (other) (IP Section 03.01) (4 Samples)
(1) EST-002, Power distribution measurement on July 7, 2020 (2) OST-158, SI, RHR, and containment spray flowpath verification on August 19, 2020 (3) OST-409-1, A EDG fast start surveillance test on September 1, 2020 (4) MST-020, A reactor protection logic train testing on September 10, 2020 Inservice Testing (IP Section 03.01) (1 Sample)
(1) OST-302-1, 'A' and 'B' service water pump testing on August 27, 2020 71114.03 - Emergency Response Organization Staffing and Augmentation System Inspection Review (IP Section 02.01-02.02) (1 Sample)
(1) The inspectors completed the evaluation of the readiness of the Emergency Response Organization on July 29, 2020. This was a continuation of an inspection that was performed remotely during the week of April 27, 2020, but was unable to be completed due to aspects that did not lend themselves to being performed remotely. Inspection Report 05000261/2020002 (ADAMS Accession No.
ML20205L435) documented the initial inspection activities.
71114.05 - Maintenance of Emergency Preparedness Inspection Review (IP Section 02.01 - 02.11) (1 Sample)
(1) The inspectors completed the evaluation of the maintenance of the emergency preparedness program on July 29, 2020. This was a continuation of an inspection that was performed remotely during the week of April 27, 2020, but was unable to be completed due to aspects that did not lend themselves to being performed remotely. Inspection Report 05000261/2020002 documented the initial inspection activities.
71114.06 - Drill Evaluation
Drill/Training Evolution Observation (IP Section 03.02) (2 Samples)
(1) The inspectors evaluated the conduct of an emergency planning drill on July 8, 2020. The drill involved a primary to secondary leak, a reactor coolant system leak, a faulted steam generator, and large break loss of coolant accident with loss of suction to emergency core cooling pumps.
(2) The inspectors evaluated the conduct of an emergency planning drill on September 9, 2020. The drill involved a fire in the charging pump room, injured personnel requiring offsite medical transportation, primary coolant leak, and loss of SI and RHR.
OTHER ACTIVITIES - BASELINE 71151 - Performance Indicator Verification The inspectors verified licensee performance indicators submittals listed below:
EP01: Drill/Exercise Performance (IP Section 02.12) (1 Sample)
(1) Drill & Exercise Performance for the period April 1, 2019, through December 31, 2019.
EP02: ERO Drill Participation (IP Section 02.13)
This Performance Indicator was verified and previously documented in Inspection Report 05000261/2020002.
EP03: Alert & Notification System Reliability (IP Section 02.14)
This Performance Indicator was verified and previously documented in Inspection Report 05000261/2020002.
IE01: Unplanned Scrams per 7000 Critical Hours Sample (IP Section 02.01) (1 Sample)
(1) Unplanned scrams per 7000 critical hours (IE01) from July 1, 2019 to June 30, 2020.
IE03: Unplanned Power Changes per 7000 Critical Hours Sample (IP Section 02.02) (1 Sample)
(1) Unplanned power changes per 7000 critical hours (IE03) from July 1, 2019 to June 30, 2020.
MS08: Heat Removal Systems (IP Section 02.07) (1 Sample)
(1) Heat removal systems (MS08) from July 1, 2019 to June 30, 2020 BI01: Reactor Coolant System (RCS) Specific Activity Sample (IP Section 02.10) (1 Sample)
(1) Reactor coolant system activity (BI01) from July 1, 2019 to June 30, 2020
71152 - Problem Identification and Resolution Annual Follow-up of Selected Issues (IP Section 02.03) (2 Samples)
The inspectors reviewed the licensees implementation of its corrective action program related to the following issues:
(1) NCR 2338716, 'A' SWBP water intrusion into the oil reservoir (2) NCR 2341239, 'A' and 'B' SI pump Trico Oiler level verification INSPECTION RESULTS No findings were identified.
EXIT MEETINGS AND DEBRIEFS The inspectors verified no proprietary information was retained or documented in this report.
- On October 20, 2020, the inspectors presented the integrated inspection results to Mr. E. Kapopoulos, Site Vice President, and other members of the licensee staff.
- On July 29, 2020, the inspectors presented the emergency preparedness program inspection results to Mr. E. Kapopoulos, Site Vice President, and other members of the licensee staff.
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