IR 05000261/2018004
ML19038A210 | |
Person / Time | |
---|---|
Site: | Robinson |
Issue date: | 02/07/2019 |
From: | Randy Musser NRC/RGN-II |
To: | Kapopoulos E Duke Energy Progress |
Geanette D | |
References | |
IR 2018004 | |
Download: ML19038A210 (26) | |
Text
ary 7, 2019
SUBJECT:
H. B. ROBINSON STEAM ELECTRIC PLANT - NUCLEAR REGULATORY COMMISSION INTEGRATED INSPECTION REPORT 05000261/2018004
Dear Mr. Kapopoulos:
On December 31, 2018, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at your H. B. Robinson Steam Electric Plant, Unit 2. On January 29, 2019, 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.
The NRC inspectors documented one finding of very low safety significance (Green) in this report. This finding involved a violation of NRC requirements. The NRC is treating this violation as a non-cited violation (NCV) consistent with Section 2.3.2.a of the Enforcement Policy.
If you contest the violation or significance of this NCV, you should provide a response within 30 days of the date of this inspection report, with the basis for your denial, to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington DC 20555-0001; with copies to the Regional Administrator, Region II; the Directory, Office of Enforcement; and the NRC Resident Inspector at the H. B. Robinson Steam Electric Plant.
If you disagree with a cross-cutting aspect assignment in this report, you should provide a response within 30 days of the date of this inspection report, with the basis for your denial, to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington DC 20555-0001; with copies to the Regional Administrator, Region II; and the NRC Resident Inspector at the H. B. Robinson Steam Electric Plant. 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.: 50-261 License Nos.: DPR-23
Enclosure:
IR 05000261/2018004 w/Attachment: Supplemental Information
REGION II==
Docket Nos: 50-261 License Nos: DPR-23 Report Nos: 05000261/2018004 Enterprise Identifier: I-2018-004-0050 Licensee: Duke Energy Progress, Inc.
Facility: H. B. Robinson Steam Electric Plant, Unit 2 Location: 3581 West Entrance Road Hartsville, SC 29550 Dates: October 1, 2018 through December 31, 2018 Inspectors: J. Rotton, Senior Resident Inspector A. Beasten, Resident Inspector A. Wilson, Project Engineer R. Williams, Senior Reactor Inspector (Section 1R08)
M. Bates, Senior Operations Engineer (Section 1R11)
P. Cooper, Reactor Inspector (Other Activities, IP 71003)
S. Downey, Senior Reactor Inspector (Other Activities, IP 71003)
B. Collins, Reactor Inspector (Other Activities, IP 71003)
W. Holston, Senior Mechanical Engineer (Other Activities, IP 71003)
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 licensees performance by conducting a baseline inspection at H. B. Robinson Steam Electric Plant, Unit 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. NRC and self-revealed findings, violations, and additional items are summarized in the table below.
List of Findings and Violations Inadequate Procedure for Movement of Fuel Assemblies in the Spent Fuel Pool Cornerstone Significance Cross-cutting Report Aspect Section Barrier Integrity Green [H.1] - 71111.20-NCV 05000261/2018004-01 Resources Refueling Open/Closed and Other Outage Activities A self-revealing Green NCV of Technical Specifications 5.4.1, Procedures, was identified for the licensees failure to incorporate (1) specific procedural steps describing the function of the spent fuel pool (SFP) Bridge crane hoist overload trip in FHP-003, Fuel Assembly Movement in the Spent Fuel Pool or FHP-001, Fuel Handling Tools Operating Procedures; (2) an appropriate trip set point for the SFP Bridge crane hoist overload trip; and (3) previously established vendor recommendations regarding the use of a load cell and weight lift restrictions during fuel assembly movement in the SFP. Specifically, the licensees failure to include adequate instruction in FHP-003 or FHP-001 resulted in damage to fuel assembly LL50 during pre-outage fuel moves in the SFP.
Additional Tracking Items None
PLANT STATUS
Unit 2 began the inspection period in Mode 6 during a planned refueling outage. The unit returned to rated thermal power on December 5, 2018, 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 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.
REACTOR SAFETY
71111.01 - Adverse Weather Protection Seasonal Extreme Weather
The inspectors evaluated readiness for seasonal extreme weather conditions prior to the onset of seasonal cold temperatures on November 6, 2018.
External Flooding (1 Sample)
The inspectors evaluated readiness to cope with external flooding on December 19, 2018.
71111.04 - Equipment Alignment Partial Walkdown
The inspectors evaluated system configurations during partial walkdowns of the following systems/trains:
- (1) B emergency diesel generator (EDG) while unit aligned for backfeed on October 16, 2018
- (2) A residual heat removal (RHR) pump while B RHR pump was unavailable due to E2 switchgear outage on October 31, 2018
- (3) Safety Injection system following performance of OST-163, Safety Injection Test and Emergency Diesel Auto Start on Loss of Power and Safety Injection, Rev. 72, on November 8, 2018
71111.05AQ - Fire Protection Annual/Quarterly Quarterly Inspection
The inspectors evaluated fire protection program implementation in the following selected areas:
- (1) Fire Zone 11 - Pipe Alley, on October 10, 2018
- (2) Fire Zone 9 - North Cable Vault, on October 17, 2018
- (3) Fire Zone 10 - South Cable Vault, on October 17, 2018
- (4) Fire Zone 22 - Control Room, on October 24, 2018
- (5) Fire Zone 23 - Hagan Room, on October 24, 2018
71111.06 - Flood Protection Measures Internal Flooding
The inspectors evaluated internal flooding mitigation protections in the motor driven auxiliary feedwater pump room (FLC060) on December 19, 2018.
71111.07 - Heat Sink Performance Heat Sink
The inspectors observed the B component cooling water heat exchanger during completion of the heat exchanger inspection on October 16, 2018.
71111.08 - Inservice Inspection Activities
The inspector evaluated pressurized water reactor non-destructive testing by reviewing the following examinations from October 1, 2018 to October 9, 2018:
- (1) Ultrasonic Examination (UT)a) UT of W-109/09, 14 Pipe-to-elbow weld, American Society of Mechanical Engineers (ASME) Class 1 (observed)
- (2) Radiographic Examination (RT)a) RT of W-29, 3 Pipe-to-pipe weld, Class 2 (observed)b) RT of W-46, 3 Pipe-to-elbow weld, Class 2 (observed)
- (3) Liquid Penetrant Examination (PT)a) PT of W-2, 3/4 sockolet to pipe weld, ASME Class 1 (reviewed) - This review included a pressure boundary welding activity
- (3) Visual Examination (VE)a) VE of reactor vessel head Control Rod Drive Mechanism Penetration Nos. 23, 28, 31, 35, 40, 64, 65, and 66; ASME Code Class 1 (Observed)
The inspector evaluated the licensees boric acid corrosion control program performance.
71111.11 - Licensed Operator Requalification Program and Licensed Operator Performance Operator Requalification
The inspectors observed and evaluated an operator simulator training scenario administered to an operating crew on December 12, 2018, involving system operation and failures leading into several abnormal operating procedures followed by multiple emergency declarations.
Operator Performance (1 Sample)
The inspectors observed and evaluated operator performance during reactor startup and low power physics testing on November 25, 2018.
Operator Exams (1 Sample)
The inspectors performed an in-office review of the overall pass/fail results of the individual operating examinations and the crew simulator operating examinations that were completed on March 19, 2018.
71111.12 - Maintenance Effectiveness Routine Maintenance Effectiveness
The inspectors evaluated the effectiveness of routine maintenance activities associated with the following equipment and/or safety significant functions:
- (1) Work Order (WO) 20297184, RV1-1 (A S/G Power Operated Relief Valve) lifting prior to reaching setpoint, on November 24-25, 2018
- (2) WO 20147611, MS-GVs (Main Steam Turbine Governor Valves) loose wiring, extent of condition investigation on November 30, 2018
71111.13 - Maintenance Risk Assessments and Emergent Work Control
The inspectors evaluated the risk assessments for the following planned and emergent work activities:
- (1) Green risk for switching power supply to the unit 4kV switchgear and 480 V buses via Backfeed procedure, OP-603, from 115kV Startup Transformer to the Unit Auxiliary Transformer on October 20, 2018
- (2) Yellow Defense-in-Depth risk for Inventory Control, Decay Heat Removal, and Power while a Dedicated Shutdown Diesel Generator Bus outage was performed and while E2 safeguard bus was de-energized for scheduled maintenance on October 31, 2018
- (3) Green risk for troubleshooting of Turbine Control System (TCS) system due to MS-GV4 failing closed on November 27, 2018
- (4) Elevated Green risk for planned steam driven auxiliary feedwater maintenance on December 11, 2018
71111.15 - Operability Determinations and Functionality Assessments
The inspectors evaluated the following operability determinations and functionality assessments:
- (1) Containment moisture barrier degraded/non-conforming operability evaluation (NCR
===02235381) on October 18, 2018
- (3) EDG B vibes points out of in service limit (NCR 02242594) on November 11, 2018
- (4) Service Water Booster Pump A vibrations in ALERT (NCR 02245445) on December 4, 2018
71111.18 - Plant Modifications
The inspectors evaluated the following permanent modification:
- (1) Engineering Change (EC) 402274, Rev. 11, Replacement of Met Tower datalogger and connection to DICSP (Distributed I&C System Platform)
71111.19 - Post Maintenance Testing
The inspectors evaluated the following post maintenance tests:
- (1) WO 20016479, Actuator diaphragm replacement---SI-855-AO, on October 4, 2018
- (2) WO 20153162, EST-137-5, Local Leak Rate Test of Purge Exhaust Valve after V12-9 replacement on October 25, 2018
- (3) WO 20212841, OP-604, Diesel Generators A and B and OST-411, Emergency Diesel Generator 'B' (24 Hour Load Test) for B EDG runs to test EDG governor replacement on November 3, 2018
- (4) OST-163, Safety Injection Test and Emergency Diesel Auto Start on Loss of Power and Safety Injection, Section 7.8, to demonstrate operability of B EDG following governor overhaul on November 8, 2018
- (5) WO 20260625, MST-023, Safeguard Relay Rack Train B, for PC-952(X2) relay replacement regarding AC Eaton (Framatome) NBF relay 10CFR21 issue (NCR 02210482) on November 10, 2018
- (6) WO 20297766, OST-202, Steam Driven Auxiliary Feedwater System Component Test, after pump turbine blade borescope inspection, lube oil heat exchanger clean and inspect, and instrumentation calibrations on December 11, 2018
71111.20 - Refueling and Other Outage Activities
The inspectors evaluated refueling outage (R2R31) activities from October 1, 2018 through November 25, 2018. The inspectors observed activities related to sections 03.01b, 03.01d.1-11, and 03.01e during this period to complete the inspection samples.
The inspectors completed the remaining inspection procedures during the third quarter of 2018, documented in NRC Inspection Report 05000261/2018003 (ADAMS ML18317A229).
71111.22 - Surveillance Testing The inspectors evaluated the following surveillance tests: Routine
- (1) MST-E-480V-E1-DV, Degraded Voltage Test E1 Bus on October 7, 2018
- (2) MST-E-480V-E2-UV, Emergency Bus E1 Undervoltage Test and Load Shed Test on November 6, 2018
- (3) OST-163, Safety Injection Test and Emergency Diesel Auto Start on Loss of Power and Safety Injection, Rev. 72, on November 8, 2018 In-service ===
- (1) OST-151-3, Safety Injection System Components Test Pump C on November 16, 2018
Containment Isolation Valve (1 Sample)
- (1) EST-062, Local Leak Rate Test of Containment Instrument Air Header Isolation Valves, Rev. 25, on October 10, 2018
71114.06 - Drill Evaluation Drill/Training Evolution
The inspectors evaluated a licensed operator continuing training evaluated session which involved multiple equipment failures and entry into multiple abnormal operating procedures and emergency declarations on December 20,
OTHER ACTIVITIES - BASELINE
===71151 - Performance Indicator Verification The inspectors verified licensee performance indicators submittals listed below for the period from October 01, 2017, through September 30, 2018.
- (1) High Pressure Injection System
71152 - Problem Identification and Resolution Semiannual Trend Review
The inspectors reviewed human performance issues with an emphasis on procedure use and adherence.
Annual Follow-up of Selected Issues ===
The inspectors reviewed the licensees implementation of its corrective action program related to the following issues:
- (1) Review of emergency response facility information system (ERFIS) reliability and availability as a result of implementation of EC 402274.
- (2) Review of corrective actions implementation for NCR 02109909 related to failure to conduct required Containment Barrier inspections per ASME Section X1, Subsection IWE.
- (3) Review of corrective action implementation for NCR 468235 related to flooding of the SI pump room during a heavy rain storm in 2011.
71153 - Follow-up of Events and Notices of Enforcement Discretion Personnel Performance
The inspectors evaluated a secondary load rejection transient event due to governor valve swing oscillations and the licensees response on November 28,
OTHER ACTIVITIES
- TEMPORARY INSTRUCTIONS, INFREQUENT AND ABNORMAL 60855.1 - Operation of an Independent Spent Fuel Storage Installation The inspectors evaluated the licensees independent spent fuel storage installation cask loadings.
71003 - Post-Approval Site Inspection for License Renewal License Renewal - Phase 4 (0 ROP Baseline Samples, 7 LRIP samples)
In accordance with IMC 2516, the license renewal inspection program is the process used by NRC staff to verify the adequacy of aging management programs (AMPs) and other activities associated with an applicants request to renew an operating license of a commercial nuclear power plant beyond the initial licensing period under 10 CFR Part 54, Requirements for the Renewal of Operating Licenses for Nuclear Power Plants.
For the following Aging Management Programs and their respective components, the inspectors verified that there is reasonable assurance that the effects of aging are being adequately managed so that the intended function(s) of structures, and components (SCs),for which an aging management review is required, are being maintained consistent with the current licensing basis (CLB).
- (1) Closed Cycle Cooling Water Program (Updated Final Safety Analysis Report (UFSAR)
Section 18.1.5)a. Component Cooling Water Heat Exchanger A (CCW-HTX-A)b. Component Cooling Water Heat Exchanger B (CCW-HTX-B)c. Dedicated Service Diesel Radiator (DSD-RADIATOR)d. Safety Injection Pump A Lube Oil Cooler (SI-PMP-A)e. Component Cooling Water Surge Tank (CCW-SRG-TNK)f. Component Cooling Water Pump A (CCW-PMP-A)g. Piping Header Downstream of Spent Fuel Pool Heat Exchangers (10-AC-152N-41)
- (2) Open Cycle Cooling Water System Program (UFSAR Section 18.1.13)a. Fan and Motor Cooler - HVAC CV Air Recirculation Cooling Unit (HVH-1)b. Fan and Motor Cooler - HVAC CV Air Recirculation Cooling Unit (HVH-3)c. Motor Driven AFW Pump Lube Oil Cooler (AFW-PMP-B-LO-HTX)d. Service Water Header Piping (30-CW-11)e. Service Water Header Piping (30-CW-12)f. Emergency Diesel Generator Jacket Water Cooler (DG-A-JW-HTX)g. Service Water Strainer (S6-1A)h. Service Water Strainer (S6-1B)
- (3) Buried Piping and Tanks Surveillance Program (UFSAR Section 18.1.16)a. Diesel Fuel Oil Storage Tank b. Unit 1 IC Turbine Fuel Oil Tank c. Underground Piping from DFOST to Each EDG Day Tank d. Underground Piping from Unit 1 to Unit 2 DFOST e. Cathodic Protection System
- (4) ASME Section IX, Subsection IWE Program (UFSAR Section 18.1.21)a. Moisture Barrier at Liner-Concrete Interface b. Sump Moisture Barrier c. Containment Panel 228-D d. Containment Panel 228-F e. Containment Panel 228-VV f. Containment Panel 228-WW g. Containment Panel 228-XX h. Containment Panel 228-BBB i. Equipment Hatch Cylinder and Bolting j. Fuel Transfer Tube Surface and Bolting
- (5) Preventative Maintenance Program (UFSAR 18.1.26)a. Charging Pump Speed Control Positioners (SC-151-V/P, SC-152-V/P)b. Condensate Storage Tank (COND-STRG-TNK)c. Dedicated Shutdown Diesel (DSD-ENG)d. Emergency Diesel Generator Air Start Strainers (S-35A, S-35B)e. HVAC Containment Vessel Air Recirculation Cooling Units (HVH-1; HVH-3)f. Motor Driven Auxiliary Feedwater Pump (AFW-PMP-B)g. Pressurizer Relief Tank (PZR-RLF-TNK)h. Reactor Coolant Pump (RCP-C)i. Service Water Pumps (SW-PMP-B; SW-PMP-D)j. Unit Auxiliary Transformer to 4kV Bus 1 Duct (UAT-BUS1-BUSDUC)
- (6) Pressurized Water Reactor (PWR) Vessel Internals Program (UFSAR 18.1.30)a. Baffle Edge Bolts (Q3-A, Q3-I, Q4-G, Q4-C)b. Upper Core Plate (101/UCP)c. Control Rod Guide Tube Flange Welds (CRGTA-B-10, CRGTA-M-10, CRGTA-M-6, CRGTA-P-6, CRGTA-P-8)d. Upper Support Assembly (101/USA)e. Hold Down Spring (101/HDS)f. Upper to Lower Girth Weld (W2)g. Lower Flange Weld (W4)h. Lower Girth Weld (W3)
- (7) Non-EQ Cables and Connections Program (UFSAR Section 18.1.33)a. Cables inside Containment Vessel b. Cables in Auxiliary Building c. Cables in Turbine Building d. RC-535 Motor Operator (Pressurizer Cubicle)
INSPECTION RESULTS
Observation 71152 Semiannual Trend Review From July 1, 2018 through December 31, 2018, the inspectors noticed a potential adverse trend in human performance, specifically as it relates to procedure use and adherence with the potential to impact plant health. During this timeframe, seven NCRs were initiated related to human performance errors. Most were significant enough to warrant a Human Performance Review Board or Prompt Investigation Response Team. The most significant events are outlined below:
- On August 14, 2018, failure to comply with MMM-009-1, Turbine Crane Protocol and General Information, Rev. 6, Step 7.1.5, resulted in the turbine crane impacting and damaging a Sealand container being used as a tool room. While this event did not have an impact on plant equipment, it did have the potential to cause injury to workers in the area. (NCR 02224661)
- On August 30, 2018, failure to comply with OST-409-1, EDG A Fast Speed Start, Rev. 63, Step 7.2.92, resulted in an incorrect starting air valve alignment to the A EDG when DA-25A was not returned to the locked open position. Multiple barriers were bypassed, including failure to perform an independent verification following manipulation of the component, as required by procedure. The condition remained undiscovered until September 1, when a security officer discovered a chain with an unlocked valve lock resting on a pipe near DA-25A. This event did have the potential to adversely affect the operability of the A EDG, however, the EDG remained operable because the redundant starting air lineup remained unaffected. The inspectors reviewed this event and the associated corrective actions and determined, based on the redundancy of the starting air lineup, the event was of minor significance.
- On October 19, 2018, with the reactor in Mode 6, a failure to verify worker qualifications in accordance with AD-MN-ALL-1000, Conduct of Maintenance, Rev. 17, Step 4.6.2, in conjunction with a failure to provide required supervisory oversight as specified in WO 20234794-70, resulted in an inadvertent start of the A Reactor Coolant Pump (RCP) during testing. While racking in the RCP breaker to the TEST position, the breaker was inadvertently positioned to the CONNECT position. During a subsequent step, the breaker was closed in the CONNECT position. Closure of the breaker in the CONNECT position started RCP-A. The pump ran for approximately 14 seconds before operations secured it. (NCRs 02238258 and 02240888)
In two instances, the undesired condition was not discovered for several days (NCR 02225270, OWP-11 switch misposition, and NCR 02228410, DA-25A (DG A Lower Air Start Outlet Isolation) mispositioned). Both of these mispositioning events were not discovered by operations, although presumably both issues would have been discovered on normal rounds and walkdowns.
None of the human performance events resulted in a significant impact to plant safety. Upon discovery of each of these events, immediate corrective action was taken. The licensee is aware of the trend in human performance as it relates to procedure use and adherence.
Inadequate Procedure for Movement of Fuel Assemblies in the Spent Fuel Pool Cornerstone Significance Cross-cutting Report Aspect Section Barrier Integrity Green [H.1] -
71111.20 - NCV 05000261/2018004-01 Resources Refueling
Open/Closed and Other Outage Activities A self-revealing Green NCV of Technical Specifications 5.4.1, Procedures, was identified for the licensees failure to incorporate
- (1) specific procedural steps describing the function of the SFP Bridge crane hoist overload trip in FHP-003, Fuel Assembly Movement in the Spent Fuel Pool or FHP-001, Fuel Handling Tools Operating Procedures;
- (2) an appropriate trip set point for the SFP Bridge crane hoist overload trip; and
- (3) previously established vendor recommendations regarding the use of a load cell and weight lift restrictions during fuel assembly movement in the SFP. Specifically, the licensees failure to include adequate instruction in FHP-003 or FHP-001 resulted in damage to fuel assembly LL50 during pre-outage fuel moves in the SFP.
Description:
On August 22, 2018, with the reactor at 100 percent power, while performing pre-outage fuel assembly shuffles in the SFP, control room operators entered AOP-013, Fuel Handling Accident, due to indications of damage to fuel assembly LL50 in the SFP. While attempting to raise fuel assembly LL50 from its storage location, upward motion was interrupted.
Overload indication was received on the SFP bridge crane hoist overload protection, but the technicians on the bridge failed to respond as this indication was not understood or described in FHP-003. The technicians lowered LL50 to verify freedom of movement within the storage rack cell and to verify proper alignment of the SFP handling tool, and proceeded to raise LL50 again. The evolution was stopped a second time due to concerns with binding, and LL50 was returned to fully seated. A third attempt to raise LL50 was made. As LL50 cleared the top of the storage rack cell, an all stop order was issued due to evidence of visible damage to the fuel assembly. Damage observed included fuel assembly grid strap damage and a corner fuel pin, bent down approximately 135 degrees from vertical and pushed into the interior of the fuel assembly behind the first row of fuel rods. Operations was notified of the damaged fuel assembly at this time, and operations entered AOP-013. There were no signs of fuel damage that would have caused a release of fuel pin internals. No changes in radiological conditions or SFP chemistry were identified.
The site had implemented a deviation (with vendor concurrence) from the vendor recommendations to use a load cell, resulting in fuel handling technicians relying on feel and the overload protection feature to aid in the identification of fuel assembly binding/interference during movement. Vendor recommendations included an OVERLOAD trip setpoint that should be adjusted to 200 pounds (lbs.) above the upward-moving weight of the fuel assembly to be moved. FHP-003 dictates that the fuel handling technicians are to use the feel of the fuel handling tool to detect perturbations in loading during movement, which limits the ability of the technician to detect excessive loads. Additionally, FHP-003 failed to describe the hoist overload protection feature and lacked guidance for the fuel handling technicians on its purpose or function, with the result that no action was taken when the overload indication was received. At the time of discovery, the overload protection setpoint was found to be at 2550 lbs. This is a non-conservative setpoint with respect to vendor recommendations, which aimed to limit fuel assembly movement to less than 200 lbs. above the nominal weight of the fuel assembly (1650 to 1800 lbs., including the fuel handling tool),with the use of a load cell.
Corrective Actions: The licensee took immediate corrective actions to secure fuel assembly LL50 in an elevated position in its storage location. All fuel assembly movement was stopped. The licensee performed visual inspection of all four sides of the entire length of the fuel assembly. After the licensee performed an engineering evaluation to install a temporary storage rack in the Cask Pit Preparation area in the SFP to perform fuel assembly reconstitution at a later time, the damaged fuel assembly was transferred to the temporary storage location and normal fuel assembly movement in the SFP was allowed. Procedure FHP-003 was revised to require the use of a load cell with actions to be taken in the event load cell display read between 100-200 pounds above expected fuel assembly load.
Corrective Action Reference: CR 2226466
Performance Assessment:
Performance Deficiency: The inspectors determined that the licensees failure to establish adequate procedural guidance for SFP bridge crane operations such that early indication of binding/interference during fuel assembly movement is recognized and established was a performance deficiency and a violation of Technical Specification 5.4.1, Procedures.
Screening: The inspectors determined the performance deficiency was more than minor because it adversely affected the objective of the barrier integrity cornerstone to provide reasonable assurance that physical design barriers protect the public from radionuclide releases caused by accidents or events. Specifically, inadequate procedural guidance on the purpose and function of the overload protection feature, in conjunction with a non-conservative overload protection setpoint, resulted in damage to fuel assembly LL50.
Significance: The inspectors assessed the significance of the finding using IMC 0609, 4, Initial Characterization of Findings, dated October 7, 2016, and IMC 0609, Appendix A, The Significance Determination Process (SDP) for Findings At-Power, dated June 19, 2012. The inspectors determined the finding was of very low safety significance (Green) because while the finding did result in mechanical damage to the fuel clad, it did not cause a detectable release of radionuclides.
Cross-cutting Aspect: The inspectors determined the finding had a cross-cutting aspect of resources in the area of human performance (H.1), because the licensee did not ensure that existing procedural resources were available to prevent damage to fuel assembly LL50.
Enforcement:
Violation: Technical Specification Section 5.4.1 states, in part, that written procedures shall be established, implemented, and maintained covering the applicable procedures recommended in Regulatory Guide 1.33, Revision 2, Appendix A, February 1978. Section 2.k requires procedures for Preparation for Refueling and Refueling Equipment Operation and Section 2.l requires procedures for Refueling and Core Alterations. Procedure FHP-003, Fuel Assembly Movement in the Spent Fuel Pool, implements these requirements.
Contrary to the above, on August 22, 2019, while performing a fuel assemble transfer from SFP storage location M05, fuel assembly LL50 was damaged due to the licensees failure to establish procedural guidance on the use of the hoist overload protection feature to ensure that adequate protection existed to prevent damage to fuel assemblies during movement in the SFP or the use of a load cell with applicable setpoints installed on the SFP bridge crane hoist per vendor recommendations. Specifically, a lack of instructions in FHP-003 on the function or purpose of the hoist overload protection feature, in conjunction with a failure to use an appropriate hoist overload setpoint or the use of an installed load cell, resulted in damage to a fuel assembly during fuel handling.
Enforcement Action: This violation is being treated as a Non-Cited Violation, consistent with Section 2.3.2 of the Enforcement Policy.
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
The inspectors confirmed that proprietary information was controlled to protect from public disclosure.
On October 9, 2018, the inspectors presented the inservice inspection results via teleconference to Kevin Ellis, Regulatory Affairs Manager, and other members of the licensee staff.
On January 29, 2019, the inspectors presented the quarterly resident inspector inspection results to Ernie Kapopoulos, and other members of the licensee staff.
THIRD PARTY REVIEWS None LIST OF
DOCUMENTS REVIEWED
71111.01: Adverse Weather Protection
Seasonal Extreme Weather Conditions
AD-WC-ALL-0230, Seasonal Readiness, Rev. 0
AP-058, Seasonal Readiness, Rev. 3
OP-925, Cold Weather Operation, Rev. 71
NCR 02193529, Winter Seasonal Weather Roll Up, 03/22/2018
PRR 02226735, OP-925, 08/23/2018
External Flooding
AP-053, Severe Weather Response, Rev. 8
OMM-021, Operation during Adverse Weather Conditions, Rev. 53
GID/R87038/0007, Generic Issues Document - Hazard Analysis, Rev. 8
RNP-C/YSTR-1004, Site PMP Storm Event Inflow and External Flooding Analysis, Rev. 5
RNP-C/YSTR-1010, Hydrologic and Hydraulic (H&H) Tainter Gate Evaluation, Rev. 1
71111.04: Equipment Alignment
Partial Walkdown
OMM-009, Locked Valve List, Rev. 109
OP-604, Diesel Generators A and B, Rev. 123
G-190204A, Emergency Diesel Generator System Flow Diagram, Sheet 1, Rev. 39; Sheet 2,
Rev. 20; Sheet 3; Rev. 22
OP-202, Safety Injection and Containment Vessel Spray System, Rev. 99
5379-1082, Safety Injection System Flow Diagram, Sheet 2, Rev. 55
5379-1484, Residual Heat Removal System Flow Diagram, Sheet 1, Rev. 49
71111.05: Fire Protection
Quarterly Inspection
AD-EG-ALL-1520, Transient Combustible Control, Rev. 11
FP-010, Housekeeping Controls, Rev. 37
FP-012, Fire Protection Systems Minimum Equipment and Compensatory Actions, Rev. 30
OMM-002, Fire Protection Manual, Rev. 53
OMM-020, Fire Protection List, Rev. 13
OST-611-22, Low Voltage Fire Detection and Actuation System Zone 22 - Control Room, Rev.03
OST-611-23, Low Voltage Fire Detection and Actuation System Zone 23 - Hagan Room, Rev.04
CSD-RNP-PFP-AB2-0254-001, Auxiliary Building Elev 254 Pre-Fire Plan, Rev. 0
CSD-RNP-PFP-AB2-0226-001, Auxiliary Building Elev 226 Pre-Fire Plan, Rev. 0
71111.06: Flood Protection
AOP-032, Response to Flooding from the Fire Protection System, Rev. 10
RNP-F/PSA-0009, Assessment of Internally Initiated Flood Events, Rev. 2
RNP-F/PSA-0104, RNP Internal Flooding PRA-Plant Partitioning and Walkdown Data, Rev. 0
RNP-F/PSA-0105, RNP Internal Flooding Analysis, Rev. 1
RNP-F/PSA-0113, RNP Internal Flooding PRA Quantification and Results Analysis, Rev. 2
RNP-M/MECH-1881, Internal Flooding Pipe Breaks for Reactor Auxiliary Building, Rev. 0
RNP-M/MECH-1882, Internal Flooding Displacement Evaluation for Reactor Auxiliary Building,
Rev. 1
RNP-M/MECH-1883, Internal Flooding Analysis Reactor Auxiliary Building, Rev. 0
71111.07 - Heat Sink Performance
CM-201, Safety Related and Non-Safety Related Heat Exchanger Maintenance, Rev. 57
EGR-NGGC-0512, License Renewal Aging Management Activities, Rev. 8
MMM-010, Cleanliness and Flushing Requirements, Rev. 31
TMM-044, Heat Exchanger NDE Inspection Process, Rev. 2
RNP-M/MECH-1074, Effect of Tube Plugging on CCW HX and Plant Cooldown Capabilities,
Rev. 3
WO 20016711, Cleaning and inspection on B CCW Heat Exchanger, 10/16/2018
WO 20212855, Clean & repair the coating on the tube sheet and housing on, 10/16/2018
71111.08 - Inservice Inspection Activities
Procedures
AD-EG-PWR-1611, Boric Acid Corrosion Control Program - Implementation, Rev. 2
AD-MN-ALL-0006, Fluid Leak Management, Rev. 1
NDE-NE-ALL-5101, Radiographic Examination, Rev. 0
NDE-NE-ALL-6102, Utilization of PDI-UT-2 Generic Procedure for the Ultrasonic Examination of
Austenitic Pipe Welds, Rev. 2
PD-EG-PWR-1611, Boric Acid Corrosion Control Program, Rev. 1
Welding Procedure Specification No.: GTOO0808-04
Other Documents
218-AST-101129, Condition Monitoring and Operational Assessment for Robinson Unit 2 R030
Outage, Rev. 001
Certificate of Instrument Calibration for Infrared Thermometer SN: 31420250WS
Certification Report for Calibration Block SN: 7544
NDE Examiner Certification Record for Examiner: 477508, 366449
Procedure Qualification Record No.: L-110D Rev. 0, L-138 Rev. 0, L-148C Rev. 0
Ultrasonic Calibration/Examination Report No.: UT-18-012
Ultrasonic Instrument Linearity Report No.: L-18-029
Welder Qualification Record for Welder: DC0010
Condition Reports
AR 02234771, Potentially abandoned piping with no tag
AR 02234774, Flaking Coating on support structure
NCR 2113517, Boric acid leak on B RHR pump
NCR 2134355, Replace si-857a (boron injection tank to safety injection test line relief)
NCR 2141488, 1 TSP brown/yellow boric acid on Charging Pump A discharge flange
NCR 2150199, Fix the leak at ps-988 and clean boric acid
NCR 2187659, WD-1777 Excessive boric acid at packing
NCR 2202725, CVC-368B Diaphragm leaking
NCR 2222305, Cycle 31 BACCP Active leaks to repair in R231
Work Orders (WO)/Work Requests (WR)
WR 20121496
WR 20121500
WR 20121503
WR 20121505
WR 20121507
71111.11: Licensed Operator Requalification
Resident Inspector Quarterly Review of Licensed Operator Requalification
Scenario description: LOCT Segment 18-10, LOCT Simulator Exercise Guide: ATWS/LOCA;
Lesson Number: RNLOC1810R-N-S3, Rev. 00A, 11/06/2018
Resident Inspector Quarterly Review of Licensed Operator Performance in the Actual Plant/Main
Control Room
AD-NF-ALL-0201, Reactivity Manipulation Plan Development, Rev. 4
AD-OP-ALL-0203, Reactivity Management, Rev. 11
AD-OP-ALL-1000, Conduct of Operations, Rev. 13
EST-050, Refueling Startup Procedure, Rev. 58
GP-003, Normal Plant Startup from Hot Shutdown to Critical, Rev. 111
RNP Unit 2 Cycle 32 Startup and Power Ascension, Rev. 0
71111.12: Maintenance Effectiveness
AD-EG-ALL-1210, Maintenance Rule Program, Rev. 1
AD-OP-ALL-0201, Protected Equipment, Rev. 5
AD-WC-ALL-0200, On-Line Work Management, Rev. 13
AD-WC-ALL-0410, Work Activity Integrated Risk Management, Rev. 7
OMM-048, Work Coordination and Risk Assessment, Rev. 65
NCR 02245045, RV1-1 Lifting prior to reaching setpoint, 11/24/2018
NCR 02245060, S/G PORV controls not working properly per GP-002, 11/24/2018
WO 20287185 RV1-2 lifting prior to relief setpoint, 11/24/2018
NCR 02245463, RNP TCS - GV-4 Oscillations During Performance of SPP-062, 11/27/2018
NCR 02245464, Governor Valve 4 failed closed at 20% power, 11/27/2018
NCR 02245806, AOP-015 Entry due to Load Swings, 11/28/2018
NCR 02246008, AOP-015 Entry due to Load Swings, Governor Valve Oscillations, 11/28/2018
NCR 02248025, GV3 LVDT1 Erratic Indication, 12/10/2018
71111.13: Maintenance Risk Assessments and Emergent Work Evaluation
AD-NF-ALL-0501, Electronic Risk Assessment Tool (ERAT), Rev. 1
71111.15: Operability Evaluations
AD-OP-ALL-0102, Operational Decision Making, Rev. 2
AD-OP-ALL-0105, Operability Determination and Functionality Assessments, Rev. 4
71111.18: Plant Modifications
AD-EG-ALL-1134, Preparation and Control of Evaluation Engineering Changes, Rev. 2
AD-EG-ALL-1137, Engineering Change Product Selection, Rev. 4
AD-EG-ALL-1180, Engineering Change Walk Downs, Rev. 4
AD-LS-ALL-0008, 10CFR50.59 Review Process, Rev. 0
71111.19: Post Maintenance Testing
PLP-033, Post Maintenance Testing Program, Rev. 67
TMM-043, Air Operated Valve Program, Rev. 17
71111.20: Outage Activities
EST-050, Refueling Startup Procedure, Rev. 58
GP-003, Normal Plant Startup from Hot Shutdown to Critical, Rev. 111
RNP Unit 2 Cycle 32 Startup and Power Ascension, Rev. 0
71111.22: Surveillance Testing
OMM-015, Operations Surveillance Testing, Rev. 49
71151: Performance Indicator (PI) Verification
AD-LS-ALL-0004, NRC Performance Indicators and Monthly Operating Report, Rev. 2
AD-BO-ALL-0002, Performance Measures Program, Rev. 5
RNP-M/MECH-1904, RNP NRC Mitigating System Performance Index (MSPI) Basis Document,
Rev. 4
71152: Problem Identification and Resolution
AD-PI-ALL-0100, Corrective Action Program, Rev. 19
MMM-009-1, Turbine Crane Protocol and General Information, Rev. 6
NCR 02221337, Processing Valve Lineup Error, 07/27/2018
NCR 02224661, Lifting and Rigging incident with Turbine Crane, 08/14/2018
NCR 02225270, OWP-11 switch misposition, 08/16/2018
NCR 02228410, DA-25A (DG A Lower Air Start Outlet Isolation) mispositioned, 09/01/2018
NCR 02235329, Inadvertent contact made by polar crane with swing gate, 10/04/2018
NCR 02238258, A Reactor Coolant Pump Breaker closure during testing, 10/20/2018
NCR 02240888, RCP A Inadvertent Start EIT Report, 11/01/2018
NCR 02244511, B EDG Auto start, 11/20/2018
AR 02217105, R2M31A Action Item: Review EC402274, 08/30/2018
AR 02182232, Update Pri. A drawings listed on ADL for EC-413474 & 413533, 10/04/2018
EC 413356, Provide UPS-backed power to 2-PNET-ES005 from power panel PP-8, 09/25/2018
NCR 02134503, RNP - MET Tower Swap-over Modification Stopped, 06/30/2017
NCR 02136956, ERFIS Failover occurred during Software Upgrade, 07/13/2017
NCR 02226089, Power Loss to PNet Components Impacting ERFIS Reliability, 08/21/2018
NCR 02213269, Loss of Control Room ERFIS with OSIPI available, 06/15/2018
NCR 02225780, Unplanned LCO entry due to a loss of ERFIS in Control Room, 08/20/2018
60855.1: Operation of an Independent Spent Fuel Storage Installation (ISFSI) Procedures
Certificate of Compliance 1004, Amendment 13, Technical Specifications for the Standardized
NUHOMS Horizontal Modular Storage System, Docket 72-1004
License No. SNM-2502, Amendment 3, May 25, 2018 (Technical Specifications)
ISFS-102, ISFSI DSC Loading and Storage, Rev. 4
ISFS-103, ISFSI HSM Temperature Monitoring, Rev. 1
OST-021, Daily Surveillances, Rev. 48
RNP-B/FP-1012, Fire Hazards Evaluation for the 24P-ISFSI Cask Hauling and Storage, Rev. 3
RNP-B/FP-1013, Explosion Hazards Evaluation for the 24P-ISFSI Cask Hauling and Storage,
Rev. 3
RNP-B/FP-1014, Probabilistic Risk Assessment of Explosion Hazards for 24P-ISFSI Cask
Hauling and Storage, Rev. 0
71003: Post-Approval Site Inspection for License Renewal
Action Requests
2044-07 556945 2120498-04
417194-26 705596-26 2230740-05
419268 722827-26 2247484
457822 733360-26 22475
Calculations
RNP-L/LR-0642, Aging Management Program - Preventative Maintenance Program for
- H.R
Robinson Unit 2, Revision 10
Condition Reports
0370343 0714514 2109909
0512470 0719666 2110709
0393456 0730164 2140335
0581908 0741180 2157488
0600053 0750731 2157489
0607989 0750869 2162763
27441 0753999 2213746
0632017 0754218 2215712
0633712 1962902 2221720
0645278 1999604 2235381
0650704 2020104 2235607
0652938 2104555 2236016
0683561 2105259 2239389
Condition Reports Generated During the Inspection
247484, 2018 NRC LR Inspection: Cable Aging Management
247520, 2018 NRC LR Inspection: SW Piping Inspection
Engineering Change
222R5 84562R1 413924R1
Miscellaneous
2018 Triennial Ultimate Heat Sink Self-Assessment
51-9177743-001, Spring 2012 RO-27 Refueling Outage. Reactor Vessel & Internals Remote
Visual Examinations, 6/4/12
DSDG Trend Data Sample 11/27/2016 - 09/20/2018
EDG Trend Data Sample 09/11/2016 - 09/10/2018
EST-116, Service Water Piping Inspection, Revision 8, conducted for R229, 05/31/2015
EST-116, Service Water Piping Inspection, Revision 8, conducted for R230, 03/23/2017
EST-116, Service Water Piping Inspection, Revision 9, conducted for R231, 11/29/2018
Final Eddy Current Inspection Report AFW Pump Room Cooler HVH-7B
HBR2-12414, CV Liner Insulation/Sheathing Insulation Panels Developed Elevation View, Rev.
NLS-90-005, HB Robinson to NRC, Response to NRC Generic Letter 89-13 Service Water
System Problems Affecting Safety-Related Equipment, 01/26/1990
NLS-91-030, HB Robinson to NRC, Supplemental Response to NRC Generic Letter 89-13
Service Water System Problems Affecting Safety-Related Equipment, 11/18/1991
NLS-91-050, HB Robinson to NRC, Supplemental Response to NRC Generic Letter 89-13
Service Water System Problems Affecting Safety-Related Equipment, 03/08/1991
Preventative Maintenance Change Requests # 2209037
Self-Assessment 712884, RNP Closed and Open Colling Water Chemistry Trends and Program
Review, 11/17/2014
Self-Assessment 1967254, PM Program Self-Assessment, completed 12/10/2015
Self-Assessment 2089149, RNP PM Program Self-Assessment, completed 03/21/2018
Self-Assessment 2201776, Fleet Closed Cooling Water Chemistry and Monitoring Trends,
04/30/2018
System Performance Monitoring Plan Dedicated Shutdown Diesel Generator, Revision 2
VE-18-010, Visual Examination (Panel 228-BBB) dated 10/3/2018
VE-18-014, Visual Examination (Panel 228-VV) dated 9/28/2018
VE-18-018, Visual Examination (Panel 228-F) dated 10/3/2018
VE-18-021, Visual Examination (Panel 228-D) dated 10/3/2018
VE-18-022, Visual Examination (Panel 228-WW) dated 9/28/2018
VE-18-023, Visual Examination (Panel 228-XX) dated 9/28/2018
VT-18-291, Visual Examination of IWE Interfaces (Equipment Hatch Cylinder), dated 10/2/2018
VT-18-293, Visual Examination of IWE Interfaces (Equipment Hatch Bolting), dated 10/2/2018
VT-18-298, Visual Examination of IWE Interfaces (Fuel Transfer Tube Bolting), dated 9/24/2018
VT-18-364, Visual Examination of IWE Interfaces (Moisture Barrier), dated 10/4/2018
VT-18-365, Visual Examination of IWE Interfaces (Sump Moisture Barrier), dated 11/6/2018
VT-18-366, Visual Examination of IWE Interfaces (Fuel Transfer Tube Surface), dated
11/7/2018
WDI-PJF-1308961-FSR-001. Reactor Vessel Lower Internals MRP Visual Inspection, October
2013
Procedures
AD-EG-ALL-1202, Preventative Maintenance and Surveillance Testing Administration, Revision
AD-EG-ALL-1615, Cable Aging Management Program - Implementation, Rev. 1
AD-EG-ALL-1911, Reactor Internals Program Implementation, Rev. 2
AD-EG-RNP-1615, Cable Aging Management Program (Robinson), Rev. 0
AD-PI-ALL-0400, Operating Experience Program, Rev. 7
CM-201, Safety Related and Non-Safety Related Heat Exchanger Maintenance, Revision 57
EGR-NGGC-0211, ASME Section XI Repair/Replacement Program, Rev. 3
OST-013, Weekly Checks and Operations, Revision 141
OST-201-1 MDAFW System Component Test Train A, Revision 38
OST-201-2 MDAFW System Component Test Train B, Revision 35
OST-405, TSC/EOF/Security Diesel Generator Operational Test, Revision 39
OST-406, TSC/EOF/Security Diesel Generator Monthly Test, Revision 36
OST-409-1, EDG A Fast Speed Start, Revision 63
OST-409-2, EDG B Fast Speed Start, Revision 66
OST-410, Emergency Diesel Generator A (24 Hour Load Test), Revision 66
OST-411, Emergency Diesel Generator B (24 Hour Load Test), Revision 67
OST-908-2, Component Cooling Water Pump A Test, Revision 4
OST-908-3, Component Cooling Water Pump B Test, Revision 5
OST-908-4, Component Cooling Water Pump C Test, Revision 4
OST-910, Dedicated Shutdown Diesel Generator (Monthly), Revision 59
PM-E-CATH-MISC-001, Cathodic Protection System Soil to Structure Potential Measurement
Test, Rev. 1
PM-E-CATH-RCTFR-001, Cathodic Protection System Rectifier Inspection and Cleaning, Rev.
PM-M-DSD-COOL-01, DSD Semi-Annual Engine Coolant Maintenance, Revision 2
PM-M-DSD-INSP-001, DSD 24 Month Inspection, Revision 2
PM-M-EOFDG-INSP-001, TSC/EOF/Security Diesel Generator Inspection Number 1, Revision
PM-M-FO-PIPE-001, Fuel Oil Transfer Piping Leak Check, dated 10/6/2015
PM-M-FO-PIPE-001, Fuel Oil Transfer Piping Leak Check, Rev. 8
RNP-L/LR-0602, Aging Management Program Open Cycle Cooling Water System Program,
Revision 7
RNP-L/LR-0627, Aging Management Program Closed Cycle Cooling Water System Program,
Revision 2
TMM-124, Inservice IWE/IWL Program, Rev. 12
Procedure Change Request
431728 1968689
597537 02247472
Work Orders
00670842-01 20015713-01
00734169-01 20016230
01127879-01 20016407-01
01800270 20016432
01800271 20016718-01
2037023-01 20016735
2066053-01 20057811
10764421 20057812
10888147 20057813
11092369 20058601-01
11672497-01 20146154-01
11813918 20152545-01
11823269 20166986
13399302 20180470
13447937-01 20213005-01
13468733 202840
13477980
13325834
20007847
2