IR 05000250/2019003

Integrated Inspection Report 05000250/2019003 and 05000251/2019003

ML19298B835
Person / Time
Site:	Turkey Point
Issue date:	10/25/2019
From:	Randy Musser NRC/RGN-II/DRP/RPB3
To:	Moul D Florida Power & Light Co
Randy Musser REG-II/RPB3
References
IR 2019003
Download: ML19298B835 (12)

Text

{{#Wiki_filter:ber 25, 2019

SUBJECT:

TURKEY POINT UNITS 3 & 4 - INTEGRATED INSPECTION REPORT 05000250/2019003 AND 05000251/2019003

Dear Mr. Moul:

On September 30, 2019, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Turkey Point Units 3 & 4. On October 10, 2019, the NRC inspectors discussed the results of this inspection with Mr. Brian Stamp, Site Director, and other members of your staff.

The results of this inspection are documented in the enclosed report.

The NRC inspectors did not identify any finding or violation of more than minor significance.

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 10 CFR 2.390, Public Inspections, Exemptions, Requests for Withholding.

Sincerely, /RA/ Randall A. Musser, Chief Reactor Projects Branch 3 Division of Reactor Projects Docket Nos. 05000250 and 05000251 License Nos. DPR-31 and DPR-41

Enclosure:

As stated

Inspection Report

Docket Numbers: 05000250 and 05000251 License Numbers: DPR-31 and DPR-41 Report Numbers: 05000250/2019003 and 05000251/2019003 Enterprise Identifier: I-2019-003-0020 Licensee: Florida Power & Light Company (FPL) Facility: Turkey Point Units 3 & 4 Location: Homestead, FL 33035 Inspection Dates: July 01, 2019 to September 30, 2019 Inspectors: R. Carrion, Senior Reactor Inspector J. Orr, Senior Resident Inspector J. Reyes, Resident Inspector R. Taylor, Senior Project Engineer 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 Turkey Point Units 3 & 4 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 3 began the inspection period at rated thermal power. On September 26, 2019, the unit was down powered to 30 percent to reduce radiation levels in containment for workers performing maintenance on the containment inboard exhaust purge valve POV-3-2603. The unit was returned to rated thermal power on September 29, 2019, and remained at or near rated thermal power for the remainder of the inspection period.

Unit 4 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.

71111.01 - Adverse Weather Protection Impending Severe Weather Sample (IP Section 03.03)

(1) The inspectors evaluated readiness for impending adverse weather conditions for Hurricane Dorian from August 28 through September 3, 2019.

71111.04Q - Equipment Alignment Partial Walkdown Sample (IP Section 03.01)

The inspectors evaluated system configurations during partial walkdowns of the following systems/trains:

(1) A and B auxiliary feedwater (AFW) pumps while the C AFW pump was out of service (OOS) on July 2, 2019

(2) Unit 3 and Unit 4 class 1E 125-Volt DC battery systems while the 4A battery was OOS and the spare class 1E battery was supplying the 4A DC bus on July 15, 16, and 19, 2019

(3) Unit 3 and Unit 4 AFW train 1 and train 2 while the B AFW pump was OOS for emergent maintenance on July 30, 2019

(4) 4A emergency diesel generator (EDG) while the 4B EDG was inoperable for a 24 hour endurance run on August 8, 2019

(5) 3B and the spare class 1E station batteries and associated chargers, while the 3A battery was OOS for maintenance on September 9, 2019

(6) 3B EDG while the 3A EDG was OOS to install new radiators, engine power packs, and overhaul on September 19, 20, 23 and 24, 2019

71111.05Q - Fire Protection Quarterly Inspection (IP Section 03.01)

The inspectors evaluated fire protection program implementation in the following selected areas:

(1) Fire zones (FZs) 81, 82, 86 and 87 for the Unit 3 and Unit 4 start-up, auxiliary, and main transformers on July 01, 2019

(2) FZs 45, 47, 54 and 55 for the Unit 3 and Unit 4 charging pump rooms and component cooling water pump rooms on July 01, 2019

(3) FZ 122 for the electric and diesel driven fire pumps, jockey pumps, and raw water tank areas on August 12, 2019

(4) FZs 30, 31, 38 and 40 for the Unit 3 and Unit 4 containment spray pump and pipe and valve rooms on August 15, 2019

(5) FZs 4, 5, 6, 7, 8, and 9 for the 2 and 4 elevation common areas of the auxiliary building on August 21, 2019

(6) FZs 25, 25A, 98, 101, and 104 for the Units 3 and Unit 4 cable spread room, electrical equipment room, Unit 4 B DC equipment room, Unit 3 A DC equipment room, and class 1E spare battery room on August 22, 2019

71111.06 - Flood Protection Measures Inspection Activities - Internal Flooding (IP Section 02.02a.)

The inspectors evaluated internal flooding mitigation protections in the:

(1) Unit 3 and Unit 4 4kV switchgear rooms on July 8, August 6, 22, 23, and 26, 2019

71111.07T - Heat Sink Performance Triennial Review (IP Section 02.02)

The inspectors evaluated heat exchanger/sink performance on the following:

(1) 3B and 4A Component Cooling Water (CCW) Heat Exchangers, Cooled by Intake Cooling Water Section 02.02b

(2) 3A and 4B Residual Heat Removal (RHR) Heat Exchangers, Closed Loop, Section 02.02c

(3) Cooling Canals, Heat Sink, Section 02.02d, specifically Sections 02.02d#6 and 02.02d#7 were completed.

==71111.11Q - Licensed Operator Requalification Program and Licensed Operator Performance Licensed Operator Performance in the Actual Plant/Main Control Room (IP Section 03.01) (2 Samples)

(1) The inspectors observed and evaluated licensed operator performance in the Main Control Room during an unannounced fire drill on September 17, 2019.

(2) The inspectors observed and evaluated licensed operator performance in the Main Control Room during reactivity operations on Unit 3 while diluting the reactor coolant system boron concentration to maintain rated power, and during Unit 4 AFW train 2 surveillance testing on September 30, 2019.

Licensed Operator Requalification Training/Examinations (IP Section 03.02)==

(1) The inspectors observed and evaluated a requalification training simulator scenario administered to an operating crew on August 20, 2019

71111.12 - Maintenance Effectiveness Routine Maintenance Effectiveness Inspection (IP Section 02.01)

The inspectors evaluated the effectiveness of routine maintenance activities associated with the following equipment and/or safety significant functions:

(1) Action Request (AR) 2322902, B AFW pump tripped early at 6,403 rpm (event date was July 31, 2019), on August 26 and 28, and September 25 and 26, 2019.

Quality Control (IP Section 02.02) (1 Sample)

The inspectors evaluated maintenance and quality control activities associated with the following equipment performance activities:

(1) Work Order (WO) 40224302, 3A EDG radiator core replacement, quality control sample on August 12, 15, 16, 19, and 20, and September 16, 2019.

71111.13 - Maintenance Risk Assessments and Emergent Work Control Risk Assessment and Management Sample (IP Section 03.01)

The inspectors evaluated the risk assessments for the following planned and emergent work activities:

(1) Unit 3 and Unit 4 online risk with BS-4-1403, basket strainer to intake cooling water (ICW) supply for the 4C CCW heat exchanger, and E232 condensing unit for the electric equipment room air handling unit V76 OOSs on July 1, 2019

(2) Unit 3 and Unit 4 online risk with the 3A1 battery charger and the 3A CCW heat exchanger OOSs on July 16 and 19, 2019

(3) Unit 3 and Unit 4 online risk with Unit 3 and Unit 4 AFW train 1 and A AFW pump OOSs and the Unit 4 control rods aligned for manual operation on August 12, 2019

(4) Unit 3 and Unit 4 online risk with the Unit 3 and Unit 4 AFW train 1, Unit 3 ICW A header, and the 3B charging pump OOSs on September 11 and 12, 2019

(5) Unit 3 and Unit 4 online risk with the 3A EDG, 3A charging pump, and the 4D 4kV switchgear room air conditioner 4S230 OOSs on September 16, 17, 19, and 20, 2019

71111.15 - Operability Determinations and Functionality Assessments Operability Determination or Functionality Assessment (IP Section 02.02)

The inspectors evaluated the following operability determinations and functionality assessments:

(1) AR 2321378, unsupported conduit in 3A battery room on August 7, 2019

(2) AR 2320534, reactor coolant system response after inadvertent 3C charging pump trip on July 11, 2019

(3) AR 2320780, 4B residual heat removal pump seal leak-off unsatisfactory during surveillance testing on July 12, 2019

(4) AR 2323337, 4C ICW pump abnormal vibration on August 5, 8, and 12, 2019

(5) AR 2325249, corroded through conduits resulting in a potential internal flood concern for the 4A and 4B 4kV switchgear rooms on August 22, 23, and September 12, 2019

(6) AR 2328937, 3A EDG noise during post maintenance testing; AR 02328803, 3A EDG radiator fan shaft deflection; AR 2329174, 3A EDG high vibration data on generator outboard axial; and AR 2329403, 3A EDG engine analysis results for noise on cylinder #19 on September 24, 26, 27, and 30, 2019

==71111.18 - Plant Modifications Temporary Modifications and/or Permanent Modifications (IP Section 03.01 and/or 03.02) (2 Samples) The inspectors evaluated the following temporary or permanent modifications:

(1) Engineering Change (EC) 293163 dewetron recorder and current transformers at 4A 480V load center for ground monitoring on August 21 and 22, 2019

(2) EC 293789, fabrication of a new washer and gasket for use on taper pin in Unit 3 containment purge exhaust inboard valve, POV-3-2603 on September 27 and 30, 2019

71111.19 - Post-Maintenance Testing Post-Maintenance Test Sample (IP Section 03.01)

[[IP sample::=

=IP 71111.18|count=8}}

The inspectors evaluated the following post maintenance tests:

(1) 0-SME-003.15, Station Battery 60 Month Maintenance after 4A battery bank replacement, WO 40598604

(2) 3-OSP-075.2, Auxiliary Feedwater Train 2 Operability Verification and 0-OSP-075.11, Auxiliary Feedwater Inservice Test after B AFW pump governor replacement, WO

===40555048

(3) 3-OSP-023.1, Diesel Generator Operability Test after 3A EDG radiator core replacement, WO 40224302

(4) 4-OSP-047.1A, Charging Pump 4A Group A Pump Test after crankcase oil change, interlock control pressure switch replacement, oil pump drive chain and suction stabilizer maintenance, WOs 40569110, 40609831, 40632633, and 40680407

(5) 0-SME-003.15, Station Battery 60 Month Maintenance after 3A battery bank replacement, WO 40569388

(6) 0-OSP-075.11, Auxiliary Feedwater Inservice Test after repair of the A AFW pump inboard journal bearing seal plates, WO 40682368

(7) 3-OSP-023.1, Diesel Generator Operability Test after 3A EDG power pack replacement and overhaul, WO 40537362

(8) 3-OSP-051.5, Local Leak Rate Tests, after 3-POV-2603, Unit 3 containment purge exhaust inboard valve modification that installed a machined washer and seal on the tapered locked pin, WO 40387403

==71111.22 - Surveillance Testing The inspectors evaluated the following surveillance tests: Surveillance Tests (other) (IP Section 03.01)==

(1) 3-OSP-202.2, RHR Pump and Piping Venting; 3-OSP-068.2, Containment Spray Gas Accumulation Management Program; and 0-OSP-202.3, Safety Injection Pump and Piping Venting, on July 25, 2019

(2) 4-OSP-023.2, 4B Diesel Generator 24 Hour Full Load Test, on August 6, 2019 Inservice Testing (IP Section 03.01) ===

(1) 3-OSP-062.2B, Safety Injection Pump 3B Group Pump Test, on July 5, 2019

==71114.06 - Drill Evaluation Select Emergency Preparedness Drills and/or Training for Observation (IP Section 03.01) (1 Sample) The inspectors evaluated:

(1) Emergency preparedness drill in the simulator control room, technical support center and the emergency operating facility, on August 8,

OTHER ACTIVITIES - BASELINE

===71151 - Performance Indicator Verification The inspectors verified licensee performance indicators submittals listed below: MS05: Safety System Functional Failures (SSFFs) Sample (IP Section 02.04)==

(1) Unit 3 July 2018 through June 2019

(2) Unit 4 July 2018 through June 2019

71152 - Problem Identification and Resolution Annual Follow-up of Selected Issues (IP Section 02.03)

The inspectors reviewed the licensees implementation of its corrective action program related to the following issues:

(1) AR 232037, B AFW pump overspeed cam device not returned to required normal position causing overspeed trip during test. This issue was selected for follow-up to verify FPL's corrective actions were appropriate to address clarifications to procedural ambiguities that contributed to the overspeed trip and additional unavailability of the B AFW pump.

(2) AR 1823645 & 2306639, foreign material concerns in CCW systems due to degradation of valve rubber seats. This issue was selected for follow-up to ensure FPL intended to perform extent of condition inspections for a population of CCW rubber seated valves that if degraded could introduce foreign material in the Unit 3 and Unit 4 CCW systems.

(3) AR 2170587, tornado missile protection walkdowns. This issue was selected to verify that FPL resolved any identified tornado missile protection vulnerabilities that were not in conformance with Turkey Point's current license basis.

71153 - Followup of Events and Notices of Enforcement Discretion Event Report (IP Section 03.02) ===

The inspectors evaluated the following licensee event reports (LERs):

(1) LER 05000250/2019-001-00, Unit 3 Manual Reactor Trip Following Grid Disturbance (ADAMS accession: ML19179A290): The inspectors determined that it was not reasonable to foresee or correct the cause discussed in the LER therefore no performance deficiency was identified. The inspectors also concluded that no violation of NRC requirements occurred. The circumstances surrounding this LER are documented in Inspection Report 05000250/2019002 and 05000251/2019002 Section 71153 (ADAMS Accession No. ML19219B126).

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 10, 2019, the inspectors presented the integrated inspection results to Mr.

Brian Stamp, Site Director, and other members of the licensee staff.

• On July 18, 2019, the inspectors presented the heat sink inspection results to Mr. Brian Stamp, Site Director, and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection Type Designation Description or Title Revision or Procedure Date 71111.07T Drawings 5610-C-1168 Cooling Canals System Layout, Sheet 1 Revision 10 5610-C-1168 Cooling Canals System Layout, Sheet 2 Revision 5 5613-M-3019 Intake Cooling Water System, Sheet 1 Revision 41 5613-M-3019 Intake Cooling Water System, Sheet 2 Revision 30 5613-M-3030 Component Cooling Water System, Sheet 1 Revision 27 5613-M-3030 Component Cooling Water System, Sheet 2 Revision 20 5614-M-3019 Intake Cooling Water System, Sheet 1 Revision 39 5614-M-3019 Intake Cooling Water System, Sheet 2 Revision 28 5614-M-3030 Component Cooling Water System, Sheet 1 Revision 32 5614-M-3030 Component Cooling Water System, Sheet 2 Revision 25 Miscellaneous Component Cooling Water System Health Reports for Unit 4 from 1st Quarter 2018 through 2nd Quarter 2019 Component Cooling Water Units 3 and 4 Heat Exchanger Operability Curves from October 2017 through July 2019

                                         (Selected weekly curves were reviewed.)

Intake Cooling Water System Health Reports for Unit 3 from 1st Quarter 2018 through 2nd Quarter 2019 Intake Cooling Water System Health Reports for Unit 4 from 1st Quarter 2018 through 2nd Quarter 2019 Unit 3 Component Cooling Water System Flow Balance for 2017 Unit 3 Component Cooling Water System Flow Balance for 2018 Unit 3 ICW Crawl-Thru Inspection of B Header, C Pump as dated related to Work Order 40526237 01 10/14/2018 Unit 4 Component Cooling Water System Flow Balance for dated 2017 10/25/17 Unit 4 Component Cooling Water System Flow Balance for 2019 Component Cooling Water System Health Reports for Unit 3 from 1st Quarter 2018 through 2nd Quarter 2019 5610-019-DB-001 Design Basis Document: Determination of Affects on Revision 11 Inspection Type Designation Description or Title Revision or Procedure Date Accident Analyses 5610-019-DB-002 Component Design Requirements: Intake Cooling Water Revision 11 System 5610-030-DB-001 Design Basis Document: Component Cooling Water System Revision 8 5610-030-DB-002 Component Design Requirements: Component Cooling Revised Water System 01/27/2016 5610-050-DB-001 Design Basis Documents: Determination of Affects on Revision 11 Accident Analyses 5610-050-DB-002 Component Design Requirements Document: Residual Heat Revision 11 Removal System Florida Power & Engineering Design of the Turkey Point Cooling Reservoir dated June Light Company 1972 Environmental Engineering Report No. 72-8 SPEC-M-081 CCW Heat Exchangers Tube Integrity Inspection Turkey Revision 1 Point Units 3 and 4 and St. Lucie Units 1 and 2 SPEC-M-086 Intake Cooling Water System Piping Inspection Revision 0 Procedures 0-ADM-651 Nuclear Chemistry Parameters Manual Revision 11 0-PMM-030.01 CCW Heat Exchanger Cleaning and Inspection Revision 6 0-PMM-030.04 CCW Heat Exchanger Cleaning and Tube Plugging Revision 1 3-OSP-019.4 Component Cooling Water Heat Exchanger Performance Revision 8 Monitoring 3-OSP-030.4 Component Cooling Water Heat Exchanger Performance Revision 16 Test 4-OSP-019.4 Component Cooling Water Heat Exchanger Performance Revision 9 Monitoring 4-OSP-030.4 Component Cooling Water Heat Exchanger Performance Revision 8 Test CY-TP-104-0031 Component Cooling Water Sampling Revision 0B 10| ]]