IR 05000335/2023004
| ML24023A412 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 01/24/2024 |
| From: | David Dumbacher NRC/RGN-II/DRP/RPB3 |
| To: | Coffey B Florida Power & Light Co |
| References | |
| IR 2023004 | |
| Download: ML24023A412 (10) | |
Text
SUBJECT:
ST. LUCIE UNITS 1 & 2 - INTEGRATED INSPECTION REPORT 05000335/2023004 AND 05000389/2023004
Dear Bob Coffey:
On December 31, 2023, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at St. Lucie Units 1 & 2. On January 18, 2024, the NRC inspectors discussed the results of this inspection with Mr. Rob Craven, Site Vice President, 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, David E. Dumbacher, Chief Reactor Projects Branch 3 Division of Reactor Projects Docket Nos. 05000335 and 05000389 License Nos. DPR-67 and NPF-16
Enclosure:
As stated
Inspection Report
Docket Numbers:
05000335 and 05000389
License Numbers:
Report Numbers:
05000335/2023004 and 05000389/2023004
Enterprise Identifier:
I-2023-004-0043
Licensee:
Florida Power & Light Company
Facility:
St. Lucie Units 1 & 2
Location:
Jensen Beach, FL
Inspection Dates:
October 01, 2023 to December 31, 2023
Inspectors:
A. Goldau, Operations Engineer
J. Hickman, Senior Resident Inspector
N. Lacy, Operations Engineer
S. Roberts, Resident Inspector
Approved By:
David E. Dumbacher, Chief
Reactor Projects Branch 3
Division of Reactor Projects
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees
performance by conducting an integrated inspection at St. Lucie Units 1 & 2, 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 1 operated at or near rated thermal power (RTP) until the unit was down powered to 92
percent RTP for the repair of 1B1 circulating water pump, on November 12, 2023. Unit 1
returned to near RTP on November 16, 2023, and remained there for the remainder of the
inspection period.
Unit 2 operated at or near RTP until the unit was shut down for the repair of HVE-21B control
element drive mechanism fan, on December 9, 2023. Unit 2 returned to near RTP on December
21, 2023, and remained there 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 performed activities described in IMC 2515,
Appendix DProperty "Inspection Manual Chapter" (as page type) with input value "NRC Inspection Manual 2515,</br></br>Appendix D" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process., Plant Status, observed risk significant activities, and completed on-site portions of
IPs. 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.
REACTOR SAFETY
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)
Unit 1, 1A emergency diesel generator (EDG) while the 1B EDG was out of service
(OOS) for planned maintenance on November 6, 2023
(2)
Unit 2, intake cooling water (ICW) 'A' train while 'B' train was OOS for planned
maintenance on November 29, 2023
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)
Unit 1 FZ-36, charging pump access hallway on October 6, 2023
(2)
Unit 1 FZ-47, auxiliary building switchgear room on October 18, 2023
(3)
Unit 1 FZ-55, reactor auxiliary building (RAB) main hallway east and main hallway
west on October 26, 2023
(4)
Unit 1 FZ-7, area between the RAB, reactor control building, and turbine generator
building on October 31, 2023
(5)
Unit 2 FZ-42, control room air conditioning room on November 3, 2023
71111.11A - Licensed Operator Requalification Program and Licensed Operator Performance
Requalification Examination Results (IP Section 03.03) (1 Sample)
The licensee completed the annual requalification operating examinations required to be
administered to all licensed operators in accordance with Title 10 of the Code of Federal
Regulations 55.59(a)(2), "Requalification Requirements," of the NRC's "Operator's
Licenses." The inspector performed an in-office review of the overall pass/fail results of the
individual operating examinations, and the crew simulator operating examinations in
accordance with Inspection Procedure (IP) 71111.11, "Licensed Operator Requalification
Program and Licensed Operator Performance." These results were compared to the
thresholds established in Section 3.03, "Requalification Examination Results," of IP 71111.11.
(1)
The inspectors reviewed and evaluated the licensed operator examination failure
rates for the requalification annual operating exam administered by November 28,
2023.
71111.11B - Licensed Operator Requalification Program and Licensed Operator Performance
Licensed Operator Requalification Program (IP Section 03.04) (1 Sample)
(1)
Biennial Requalification Written Examinations
The inspectors evaluated the quality of the licensed operator biennial requalification
written examination administered on 07/25/2022.
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
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:
A planned power reduction to 92% of Unit 1 to repair the 1B1 circulating water
pump (CWP) due to high vibration, on November 12, 2023
Power ascension to 100% of Unit 1 following repairs to 1B1 CWP, on
November 16, 2023
Shut down to mode 5 of Unit 2 for the repair of HVE-21B control element drive
mechanism (CEDM) fan, on December 9, 2023.
Startup of Unit 2 following repairs of HVE-21B CEDM fan, on December 21,
2023.
Licensed Operator Requalification Training/Examinations (IP Section 03.02) (1 Sample)
(1)
The inspectors observed and evaluated a licensed operator continuing training
evaluation in the control room simulator on October 10, 2023.
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)
Unit 1, 'B' ICW train, review completed on November 16, 2023
71111.13 - Maintenance Risk Assessments and Emergent Work Control
Risk Assessment and Management Sample (IP Section 03.01) (1 Sample)
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)
Unit 1, elevated risk with 1B ICW pump OOS for maintenance, from November 12 -
November 16, 2023
71111.15 - Operability Determinations and Functionality Assessments
Operability Determination or Functionality Assessment (IP Section 03.01) (6 Samples)
The inspectors evaluated the licensee's justifications and actions associated with the
following operability determinations and functionality assessments:
(1)
AR 2468242, high vibrations on 1A ICW heat exchanger outlet valve, review
completed on October 10, 2023
(2)
AR 2468451, 1B2 EDG fan belt, review completed on October 18, 2023
(3)
AR 2469186, Rosemount transmitter potential missed surveillance requirements,
review completed on November 13, 2023
(4)
AR 2470324 2A EDG lockout relay, review completed on November 1, 2023
(5)
AR 2474774, 2C auxiliary feedwater trip throttle valve MV-08-03 not tripping locally,
review completed on December 22, 2023
(6)
AR 2470756, potential impact on environmental qualifications due to improper quality
control inspection on unit 2 containment high range radiation detector, review
completed on December 28, 2023
71111.20 - Refueling and Other Outage Activities
Refueling/Other Outage Sample (IP Section 03.01) (1 Sample)
(1)
The inspectors evaluated the HVE-21A/21B cooling fan forced outage activities from
December 9, 2023 to December 19, 2023.
71111.24 - Testing and Maintenance of Equipment Important to Risk
The inspectors evaluated the following testing and maintenance activities to verify system
operability and/or functionality:
Post-Maintenance Testing (PMT) (IP Section 03.01) (4 Samples)
(1)
Work order (WO) 40864523, 2C auxiliary feedwater pump (AFW) pump MV-08-3
linkage lubrication on November 9, 2023
(2)
WO 40957271, Unit 1 1B steam generator pressure transmitter failure on November
21, 2023
(3)
WOs 40865518,40951649, and 40757088 Unit 1 1B EDG critical maintenance
management for radiator replacement on November,30, 2023
(4)
WO 40959233, Unit 2 V3801 steam leak on December 22, 2023
Surveillance Testing (IP Section 03.01) (3 Samples)
(1)
1-SMI-09.43B, Auxiliary Feedwater Actuation System Monthly Functional Test
Channel B, review completed on October 25, 2023
(2)
2-OSP-59.01B, 2B Emergency Diesel Generator Monthly Surveillance, review
completed on October 26, 2023
(3)
2-OSP-09.02C, 2C, 2C Auxiliary Feedwater Pump Shutdown Full Flow Test, review
completed on December 21, 2023
Inservice Testing (IST) (IP Section 03.01) (1 Sample)
(1)
2-OSP-09.01A, Unit 2 2A Auxiliary Feedwater Pump Code Run on November 7, 2023
OTHER ACTIVITIES - BASELINE
71151 - Performance Indicator Verification
The inspectors verified licensee performance indicators submittals listed below:
MS06: Emergency AC Power Systems (IP Section 02.05) (2 Samples)
(1)
Unit 1 (October 1, 2022, through September 30, 2023)
(2)
Unit 2 (October 1, 2022, through September 30, 2023)
MS07: High Pressure Injection Systems (IP Section 02.06) (2 Samples)
(1)
Unit 1 (October 1, 2022, through September 30, 2023)
(2)
Unit 2 (October 1, 2022, through September 30, 2023)
MS08: Heat Removal Systems (IP Section 02.07) (2 Samples)
(1)
Unit 1 (October 1, 2022, through September 30, 2023)
(2)
Unit 2 (October 1, 2022, through September 30, 2023)
MS09: Residual Heat Removal Systems (IP Section 02.08) (2 Samples)
(1)
Unit 1 (October 1, 2022, through September 30, 2023)
(2)
Unit 2 (October 1, 2022, through September 30, 2023)
MS10: Cooling Water Support Systems (IP Section 02.09) (2 Samples)
(1)
Unit 1 (October 1, 2022, through September 30, 2023)
(2)
Unit 2 (October 1, 2022, through September 30, 2023)
71152A - Annual Follow-up Problem Identification and Resolution
Annual Follow-up of Selected Issues (Section 03.03) (1 Sample)
The inspectors reviewed the licensees implementation of its corrective action program
related to the following issues:
(1)
Potential impacts on environmental qualifications of a Raychem splice for a
containment high range radiation monitor due to an improper quality control
inspection, completed in WO 40676592 and documented in AR 2470756.
71152S - Semiannual Trend Problem Identification and Resolution
Semiannual Trend Review (Section 03.02) (1 Sample)
(1)
The inspectors reviewed the licensees corrective action program for potential
adverse trends associated with missed or incomplete programmatic tests and
surveillances that might be indicative of a more significant safety issue. No adverse
trend was identified.
INSPECTION RESULTS
No findings were identified.
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
On January 18, 2024, the inspectors presented the integrated inspection results to Mr.
Rob Craven, Site Vice President, and other members of the licensee staff.
On November 15, 2023, the inspectors presented the IP 71111.11B inspection results to
Mr. Erik Feightner, Training Manager, and other members of the licensee staff.