IR 05000321/2023001
| ML23111A291 | |
| Person / Time | |
|---|---|
| Site: | Hatch |
| Issue date: | 04/26/2023 |
| From: | Alan Blamey NRC/RGN-II/DRP/RPB2 |
| To: | Brown R Southern Nuclear Operating Co |
| References | |
| IR 2023001 | |
| Download: ML23111A291 (27) | |
Text
April 26, 2023
SUBJECT:
EDWIN I. HATCH, UNITS 1 AND 2 - INTEGRATED INSPECTION REPORT 05000321/2023001 AND 05000366/2023001
Dear R. Keith Brown:
On March 31, 2023, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Edwin I. Hatch, Units 1 and 2. On April 12, 2023, the NRC inspectors discussed the results of this inspection with Mr. Johnny Weissinger, 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, Alan J. Blamey, Chief Reactor Projects Branch 2 Division of Reactor Projects Docket Nos. 05000321 and 05000366 License Nos. DPR-57 and NPF-5
Enclosure:
As stated
Inspection Report
Docket Numbers:
05000321 and 05000366
License Numbers:
Report Numbers:
05000321/2023001 and 05000366/2023001
Enterprise Identifier:
I-2023-001-0024
Licensee:
Southern Nuclear Operating Company, Inc.
Facility:
Edwin I. Hatch, Units 1 and 2
Location:
Baxley, GA
Inspection Dates:
January 01, 2023 to March 31, 2023
Inspectors:
J. Bell, Health Physicist
J. Diaz-Velez, Senior Health Physicist
J. Hickey, Senior Project Engineer
J. Hickman, Resident Inspector
B. Kellner, Senior Health Physicist
M. Magyar, Reactor Inspector
J. Rivera, Health Physicist
R. Smith, Senior Resident Inspector
S. Temple, Resident Inspector
Approved By:
Alan J. Blamey, Chief
Reactor Projects Branch 2
Division of Reactor Projects
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting an integrated inspection at Edwin I. Hatch, Units 1 and 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 began the inspection period at 100 percent rated thermal power (RTP). On January 23, 2023, the unit was down powered to 95 percent RTP to perform an average power range monitor instrumentation calibration and returned to 100 percent RTP on January 25, 2023. On March 11, 2023, the unit was down powered to 70 percent RTP to perform a control rod sequence exchange and turbine valve testing. On March 12, 2023, the unit was returned to 100 percent RTP and operated there for the remainder of the inspection period.
Unit 2 began the inspection period at approximately 95 percent RTP due to its end of cycle coast down for the Cycle 27 refueling outage (2R27). On January 29, 2023, the operators shut down the unit for the scheduled refueling outage. The unit was restarted on February 26, 2023, and reached approximately 100 percent RTP on March 6, 2023. On March 11, 2023, the unit automatically decreased power to approximately 79 percent RTP due to a recirculation pump runback caused by low suction pressure to the condensate booster pumps while lowering hotwell level. The licensee determined the cause of the runback and restored the unit to 100 percent RTP on March 12, 2023. On March 29, 2023, the operators reduced power to approximately 20 percent RTP to perform maintenance on the digital controls for the main generator. After repairs were completed, on March 30, 2023, the operators proceeded to increase power. On March 31, 2023, while operating at 97 percent RTP, operators inserted a manual reactor scram (rapid shutdown), as required by technical specifications, due to the unexpected trip of both reactor recirculation pumps. The unit remained shut down 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 D, 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
71111.01 - Adverse Weather Protection
Impending Severe Weather Sample (IP Section 03.02) (1 Sample)
- (1) The inspectors evaluated the adequacy of general preparations to protect risk-significant systems from impending severe weather during a Tornado Watch on January 4, 2023.
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) Unit 2 decay heat removal (DHR) system, during refueling outage 2R27, due to being the primary means of decay heat removal, using procedure 34SO-G71-001-0, on February 6-7, 2023
- (2) Unit 2 loop B residual heat removal (RHR) system, during refueling outage 2R27, following inspection of the associated heat exchanger, using 34SO-E11-010-2, on February 8, 2023
- (3) Unit 2 reactor core isolation cooling (RCIC) system after being placed in stand-by for plant start-up, using 34SO-E51-001-2, on February 28, 2023
Complete Walkdown Sample (IP Section 03.02) (1 Sample)
- (1) The inspectors evaluated system configurations during a complete walkdown of the unit 2 high pressure coolant injection (HPCI) system the weeks of March 20 and March 27, 2023.
71111.05 - Fire Protection
Fire Area Walkdown and Inspection Sample (IP Section 03.01) (6 Samples)
The inspectors evaluated the implementation of the fire protection program by conducting a walkdown and performing a review to verify program compliance, equipment functionality, material condition, and operational readiness of the following fire areas:
- (1) Unit 2 turbine building 112-foot elevation on January 12, 2023
- (2) Control building 180-foot elevation on January 13, 2023
- (3) Control building 112-foot elevation on January 24, 2022
- (4) Unit 2 reactor building 130-foot elevation and below on February 9, 2023
- (5) Unit 2 reactor building steam chase on February 15, 2023
- (6) Unit 2 reactor building 203-foot elevation on March 13, 2023
Fire Brigade Drill Performance Sample (IP Section 03.02) (2 Samples)
- (1) The inspectors evaluated the onsite fire brigade training and performance during an announced fire drill in the unit 2 C/D switchgear room 130-foot elevation control building, on March 17, 2023.
- (2) The inspectors evaluated the onsite fire brigade training and performance during an announced fire drill in the unit 1 C/D switchgear room 130-foot elevation control building, on March 24, 2023.
71111.06 - Flood Protection Measures
Flooding Sample (IP Section 03.01) (1 Sample)
- (1) The inspectors evaluated internal and external flooding mitigation protections in the intake building:
1. Unit 1 and 2 plant service water pump (PSW) area
2. Unit 1 and 2 residual heat removal service water (RHRSW) pump areas
3. Unit 1 and 2 valve pits
71111.07A - Heat Exchanger/Sink Performance
Annual Review (IP Section 03.01) (1 Sample)
The inspectors evaluated readiness and performance of:
- (1) Unit 2 RHR B-division heat exchanger
71111.08G - Inservice Inspection Activities (BWR)
BWR Inservice Inspection Activities Sample - Nondestructive Examination and Welding
Activities (IP Section 03.01)
- (1) The inspectors evaluated boiling water reactor non-destructive testing by reviewing the following examinations from February 1 - 15, 2023:
03.01.a - Nondestructive Examination and Welding Activities.
1. Ultrasonic Testing
a.
2B11\\2BHD-A, Bottom Head Dome Meridional Weld, Class 1 (observed)b.
2B11\\2BHD-B, Bottom Head Dome Meridional Weld, Class 1 (observed)c.
2B11\\2BHT-E, Bottom Head Torus Meridional Weld, Class 1 (observed)
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 unit 2 plant shutdown for refueling outage 2R27. Specifically, the inspectors observed power decrease operations through reduction of reactor recirculation flow to minimum, insertion of control rods to 20 percent RTP, followed by a main turbine trip. The inspectors observed a further reduction of power, via control rods insertion, to 12 percent RTP in support of a containment entry to inspect for unidentified leakage noted during the operating cycle. The inspectors then observed operators manually insert a reactor scram, to complete the shutdown, and establish a controlled cooldown rate within technical specification limits, on January 28-29, 2023.
Licensed Operator Requalification Training/Examinations (IP Section 03.02) (1 Sample)
- (1) The inspectors observed and evaluated licensed operator performance in the simulator for just-in-time training, or JITT, to support the unit 2 shutdown for refueling outage 2R27, on January 24, 2023.
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) Primary containment vent T23 and purge valves 2T48-F319 and 2T48-F320 that failed local leak rate test for the penetration and resulted in a containment leakage rate that exceeded the allowable limit, on February 7, 2023
- (2) Concrete foundations for the unit 2 500-kilovolt (KV) switchyard towers, on March 15-21, 2023
Quality Control (IP Section 03.02) (1 Sample)
The inspectors evaluated the effectiveness of maintenance and quality control activities to ensure the following SSC remains capable of performing its intended function:
- (1) Replacement of the unit 2 PSW system flow venturi with ultrasonic transducers under the alternate treatment requirements of Title 10 of the Code of Federal Regulations (10 CFR) 50.69, Risk-informed categorization and treatment of structures, systems and components for nuclear power reactors, on February 4, 2023.
71111.13 - Maintenance Risk Assessments and Emergent Work Control
Risk Assessment and Management Sample (IP Section 03.01) (6 Samples)
The inspectors evaluated the accuracy and completeness of risk assessments for the following planned and emergent work activities to ensure configuration changes and appropriate work controls were addressed:
- (1) Unit 2 elevated risk during critical lift of the 356-kilopound main generator rotor to the turbine deck, in preparation of refueling outage 2R27, on January 11, 2023
- (2) Unit 2 elevated risk as the unit entered refueling outage 2R27, on January 30, 2023
- (3) Unit 2 elevated risk due to placing the B-division RHR system in shutdown cooling mode prior to reactor cavity drain down, on February 15, 2023
- (4) Unit 2 elevated risk due to placing the A-division RHR system in shutdown cooling mode prior to integrated leakage rate test, on February 21, 2023
- (5) Unit 1 elevated risk due to a start failure of the A-division emergency diesel generator (EDG) during a monthly surveillance, on March 3, 2023
- (6) Unit 1 elevated risk due to the A-division RHR system outage, on March 27, 2023
71111.15 - Operability Determinations and Functionality Assessments
Operability Determination or Functionality Assessment (IP Section 03.01) (7 Samples)
The inspectors evaluated the licensee's justifications and actions associated with the following operability determinations and functionality assessments:
- (1) Condition Report (CR) 10936048. Main control room air handling unit, 1Z41-B003B, failure to automatically start on demand.
- (2) CRs 10931208, 10931224, 10931346, 10931584. Main control room penetration, 1Z43H661J, breached without a pre-approved barrier impairment checklist.
- (3) CRs 10938241, 10939152, and 10939155. RHR snubbers, 2E11RHRR146 and 2E11RHRR245A, failed visual inspection due to having no hydraulic fluid in the reservoir.
- (4) CR 10944365. Potential impact to cable jacket insulation due to electro-hydraulic control fluid found in cable trays.
- (5) CR 10947938. Swing EDG 1B did not shut down during performance of logic system functional test (LSFT).
- (6) CR 10952899. Unit 1 A-division EDG failure to start and common cause failure review.
- (7) CR 10957414. Unit 2 HPCI following a high-water level logic actuation.
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) Unit 2 design changes associated with RHR motor-operated valves and breaker coordination of critical instrument buses to meet NFPA 805 commitments.
- (2) Unit 2 design change to replace PSW flow venturis with ultrasonic transducers and flow meters to develop a better flow profile, reduce flow uncertainty, and increase data repeatability caused by erosion and aging of the venturis.
71111.20 - Refueling and Other Outage Activities
Refueling/Other Outage Sample (IP Section 03.01) (1 Sample)
- (1) The inspectors evaluated unit 2 refueling outage, 2R27, activities from January 28 to March 6, 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) (8 Samples)
- (1) Procedure 34SO-G71-001-0, after replacement of the unit 1 DHR primary pump 1G71C001A, on January 9, 2023
- (2) Work order (WO) SNC1441689 and 34SV-R43-021-2, swing EDG 1B retest after replacement of the ES1 relay in the relay terminal box 1R43S001B, on February 14, 2023 (3)57CP-C51-012-0, 57GM-MIC-016-0, and 57IT-C51-001-0, after replacement of six local power range monitor (LPRM) detector strings, on February 15, 2023 (4)42SV-C11-003-0, after replacement of 20 control rod drive mechanisms, four control rod blades, and eight control rod blade shuffle pairs across 16 locations, on February 20, 2023 (5)34SV-R43-004-1, after replacement of the unit 1 A-division EDG governor, on March 3-5, 2023 (6)57SV-R43-001-2, after replacement of the K-19 relay due to unit 2 receiving a "Diesel Generator B loading Timer Failure" alarm, on March 16, 2023 (7)34SV-E11-002-1, 34SO-E11-010-1, and 34SV-E11-001-1, after maintenance on unit 1 RHR valves during a system outage, on March 29, 2023
- (8) WOs SNC1455959 and SNC1458235, test of the unit 2 main generator digital excitation system controls (EX2100 EDCF cards on M1, M2, and C controllers), after fuse and power supply replacements, on March 31, 2023
Surveillance Testing (IP Section 03.01) (4 Samples)
(1)34SV-R43-025-2, "Diesel Generator 2C Logic System Functional Test," Version 3.0, on February 1, 2023 (2)34SV-R43-022-2, "Diesel Generator 2C Loss of Coolant Accident / Loss of Offsite Power Logic System Functional Test," Version 2.6, on February 8, 2023 (3)34SV-R43-024-2, "Diesel Generator 1B Logic System Functional Test," Version 4.0, on February 12, 2023 (4)34SV-B21-012-2, "Low Low Set Logic System Functional Test," Version 1.1, and 34SV-B21-010-2, "Main Steam Isolation Valve Logic System Functional Test," Version 1.1, on February 14 and 20, 2023
Inservice Testing (IST) (IP Section 03.01) (1 Sample)
(1)34SV-E51-002-1, "Reactor Core Isolation Cooling Pump Operability Inservice Test," Version 29.1, on January 4, 2023
Containment Isolation Valve (CIV) Testing (IP Section 03.01) (1 Sample)
(1)42SV-TET-001-2, "Primary Containment Periodic Type B & C Leakage Tests," Version 37.3, for main steam isolation valves, on February 2, 2023
Reactor Coolant System Leakage Detection Testing (IP Section 03.01) (1 Sample)
- (1) CR 10952393. Unit 2 drywell floor drain leakage increase, on March 1, 2023.
Diverse and Flexible Coping Strategies (FLEX) Testing (IP Section 03.02) (1 Sample)
- (1) FLDAIRCOMP3Y-H, "Diesel Air Compressor Performance Test Work Instructions," for the performance test of the flex air compressor, on March 14, 2023
71114.06 - Drill Evaluation
Drill/Training Evolution Observation (IP Section 03.02) (2 Samples)
The inspectors evaluated:
- (1) Licensed reactor operators respond to a loss of coolant accident in the drywell during a simulator scenario. The inspectors observed the crew make an emergency declaration and notification. This represented a drill and exercise performance opportunity on March 15, 2023.
- (2) Licensed reactor operators respond to a loss of coolant accident in the drywell during a simulator scenario. The inspectors observed the crew make an emergency declaration and notification. This represented a drill and exercise performance opportunity on March 22,
RADIATION SAFETY
71124.01 - Radiological Hazard Assessment and Exposure Controls
Radiological Hazard Assessment (IP Section 03.01) (1 Sample)
- (1) The inspectors evaluated how the licensee identifies the magnitude and extent of radiation levels and the concentrations and quantities of radioactive materials and how the licensee assesses radiological hazards.
Instructions to Workers (IP Section 03.02) (1 Sample)
- (1) The inspectors evaluated how the licensee instructs workers on plant-related radiological hazards and the radiation protection requirements intended to protect workers from those hazards.
Contamination and Radioactive Material Control (IP Section 03.03) (3 Samples)
The inspectors observed/evaluated the following licensee processes for monitoring and controlling contamination and radioactive material:
- (1) Workers exiting the unit 2 drywell contaminated area
- (2) Workers exiting the radiologically controlled area (RCA)
- (3) Radiation protection technicians surveying bags of dry active waste for disposal
Radiological Hazards Control and Work Coverage (IP Section 03.04) (4 Samples)
The inspectors evaluated the licensee's control of radiological hazards for the following radiological work:
- (1) Unit 2 A recirculation pump motor replacement
- (2) Valve work including safety relief valves and inboard main steam isolation valves in the unit 2 drywell
- (3) Welding and grinding activities in the unit 2 condenser bay
- (4) Diving activities in the unit 2 torus High Radiation Area and Very High Radiation Area Controls (IP Section 03.05) (4 Samples)
The inspectors evaluated licensee controls of the following High Radiation Areas and Very High Radiation Areas:
- (1) Unit 2 reactor water cleanup valve nest locked high radiation area (LHRA)
- (2) Unit 1 fuel pool cooling heat exchanger LHRA
- (3) Unit 2 torus filters LHRA
- (4) Unit 1 185-foot east-west hallway very high radiation area Worker Performance and Radiation Protection Technician Proficiency (IP Section 03.06) (1 Sample)
- (1) The inspectors evaluated radiation worker and radiation protection technician performance as it pertains to radiation protection requirements.
71124.03 - In-Plant Airborne Radioactivity Control and Mitigation
Permanent Ventilation Systems (IP Section 03.01) (2 Samples)
The inspectors evaluated the configuration of the following permanently installed ventilation systems:
- (1) Main control room ventilation
- (2) Unit 1 A and B-trains, and unit 2 B-train, stand by gas treatment in-place filtration and charcoal adsorption test results.
Temporary Ventilation Systems (IP Section 03.02) (2 Samples)
The inspectors evaluated the configuration of the following temporary ventilation systems:
- (1) High efficiency particle air-filter ventilation unit, MCF-9118-2, used on the unit 2 turbine deck
- (2) High efficiency particle air-filter ventilation unit, MCF-9118-1, used on the unit 2 turbine deck
Use of Respiratory Protection Devices (IP Section 03.03) (1 Sample)
- (1) The inspectors evaluated the licensees use of respiratory protection devices. Reviewed respiratory protection equipment used during the outage, air sampling results during the outage, total effective dose equivalent (TEDE) as low as reasonably achievable (ALARA) evaluations for selected work activities, verified self-contained breathing apparatus (SCBA) respirator use, and qualifications of selected licensee employees, including shift control room operators, and SCBA glasses availability and use.
Self-Contained Breathing Apparatus for Emergency Use (IP Section 03.04) (1 Sample)
- (1) The inspectors evaluated the licensees use and maintenance of SCBAs. Reviewed annual Posi3 USB Regulator Test Results for SCBA Kit number 851 and 863 (regulator serial numbers (SNs) e0040150d39cdd89 and e0040150d39d4d5a).
71124.04 - Occupational Dose Assessment
Source Term Characterization (IP Section 03.01) (1 Sample)
- (1) The inspectors evaluated licensee performance as it pertains to radioactive source term characterization.
External Dosimetry (IP Section 03.02) (1 Sample)
- (1) The inspectors evaluated how the licensee processes, stores, and uses external dosimetry.
Internal Dosimetry (IP Section 03.03) (3 Samples)
The inspectors evaluated the following internal dose assessments:
- (1) The inspector reviewed a whole-body counter dosimetry assessment (worker #1)
- (2) The inspector reviewed a whole-body counter dosimetry assessment (worker #2)
- (3) The inspector reviewed a whole-body counter dosimetry assessment (worker #3)
Special Dosimetric Situations (IP Section 03.04) (3 Samples)
The inspectors evaluated the following special dosimetric situations:
- (1) The inspector reviewed a declared pregnant worker (DPW) dose assessment that occurred between February 2022 and February 2023 (DPW #1)
- (2) The inspector reviewed a DPW dose assessment that occurred between February 2022 and February 2023 (DPW #2)
- (3) The inspector reviewed an extremity dose assessment that occurred between February 2022 and February 2023 (worker #3)
71124.05 - Radiation Monitoring Instrumentation
Walkdowns and Observations (IP Section 03.01) (9 Samples)
The inspectors evaluated the following radiation detection instrumentation during plant walkdowns:
- (1) Portable ion chambers ready for use in the instrumentation lab
- (2) Portable Geiger Muller detectors ready for use in the instrumentation lab
- (3) Portable wide range telescopic survey meters ready for use in the instrumentation lab
- (4) Continuous air monitors in the unit 2 reactor building
- (5) Portable neutron survey meters ready for use in the instrumentation lab
- (6) Small article monitors at the RCA exit
- (7) Portal monitors at the RCA exit and protected area exit
- (8) Personnel contamination monitors at the RCA exit
- (9) Area radiation monitors in the unit 2 reactor building
Calibration and Testing Program (IP Section 03.02) (12 Samples)
The inspectors evaluated the calibration and testing of the following radiation detection instruments:
- (1) SAM-12, SN 286
- (2) GEM-5, SN 1301-016
- (3) ARGOS-5AB, SN 1301-002
- (4) RO-20, SN 4197
- (5) Ludlum-3, SN 273271
- (6) Telepole, SN 0173
- (7) Telepole, SN 6615-060
- (8) AMS-4, SN 1903
- (9) AMS-4, SN 1900
- (10) REM Ball, SN 1354 / 4641
- (11) Unit 2 drywell high range area radiation monitor, no. 57SV-D11-019-2
- (12) Hatch whole body counter, HNP-DO Effluent Monitoring Calibration and Testing Program Sample (IP Sample 03.03) (2 Samples)
The inspectors evaluated the calibration and maintenance of the following radioactive effluent monitoring and measurement instrumentation:
- (1) WO SNC1106409, unit 1 main stack radiation monitor calibration, August 3, 2021
- (2) WO SNC1135551, unit 1 liquid radwaste radiation monitor calibration, July 20,
OTHER ACTIVITIES - BASELINE
===71151 - Performance Indicator Verification The inspectors verified licensee performance indicators submittals listed below:
IE01: Unplanned Scrams per 7000 Critical Hours Sample (IP Section 02.01)===
- (1) Unit 1 (January 1, 2022 to December 31, 2022)
- (2) Unit 2 (January 1, 2022 to December 31, 2022)
IE03: Unplanned Power Changes per 7000 Critical Hours Sample (IP Section 02.02) (2 Samples)
- (1) Unit 1 (January 1, 2022 to December 31, 2022)
- (2) Unit 2 (January 1, 2022 to December 31, 2022)
IE04: Unplanned Scrams with Complications Sample (IP Section 02.03) (2 Samples)
- (1) Unit 1 (January 1, 2022 to December 31, 2022)
- (2) Unit 2 (January 1, 2022 to December 31, 2022)
OR01: Occupational Exposure Control Effectiveness Sample (IP Section 02.15) (1 Sample)
- (1) February 1, 2022 to February 9, 2023
71152A - Annual Follow-up Problem Identification and Resolution Annual Follow-up of Selected Issues (Section 03.03)
- (1) CR 10925361 and corrective action report (CAR) 332462. Review of corrective actions for a fire water main rupture, on February 1, 2023
71152S - Semiannual Trend Problem Identification and Resolution Semiannual Trend Review (Section 03.02)
- (1) Semi-annual trend review of steam leaks for both units during cycle year 2022 71153 - Follow Up of Events and Notices of Enforcement Discretion Event Follow-up (IP section 03.01) (1 Partial Sample)
(1)
(Partial)
The inspectors evaluated a manual reactor scram on unit 2 following a loss of both recirculation pumps and the licensees initial response on March 31, 2023. A follow-up inspection of this event (NRC Event Notification 56446) will be completed during the second quarter of
INSPECTION RESULTS
No findings were identified.
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
On April 12, 2023, the inspectors presented the integrated inspection results to Mr. Johnny Weissinger, Site Vice President (SVP), and other members of the licensee staff.
On February 22, 2023, the inspectors presented the radiation safety inspection (IP71124)results to Mr. Johnny Weissinger, SVP, and other members of the licensee staff.
On February 15, 2023, the inspectors presented inservice inspection (IP71111.08G)results to Mr. Johnny Weissinger, SVP, and other members of the licensee staff.
DOCUMENTS REVIEWED
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Procedures
Naturally Occurring Phenomena
20.2
Condition Report
(CRs)
10780157, 10780410, 10780501, 10783270, 10783779,
10788423, 10788425, 10797252, 10797254, 10797255,
10797478, 10797539, 10797548, 10797559, 10797737,
10798027, 10808367, 10813160, 10824117, 10836779,
10847170, 10854350, 10854912, 10855148, 10855514,
10856192, 10856252, 10857745, 10870105, 10874276,
10883964, 10883987, 10884556, 10884651, 10884712,
10884729, 10884852, 10884877, 10884944, 10885072,
10885091, 10885941, 10890566, 10898583, 10903140,
10908138, 10916168, 10916446, 10932902, 10933182,
10933370, 10933414, 10944008, 10945151, 10946095,
10947530, 10948568, 10949002, 10949236, 10949437,
10951521, 10952186, 10926166, 10927088, 10930268,
10931128, 10931906, 10932866, 10937218, 10940570,
10942319, 10943344, 10943377, 10944008, 10944919,
10947422, 10951693, 10951883, 10892107, 10892178,
10892291, 10896990, 10898137, 10900349, 10900709,
10906813, 10906911, 10907552, 10907564, 10910224,
10910665, 10911511, 10916570, 10927362, 10929514,
10932064, 10932511, 10936892, 10936911, 10937624,
10937647, 10938156, 10938228, 10938317, 10939577,
10941302, 10943411, 10944277, 10945682
Various
Corrective Action
Documents
Corrective Action
Report (CAR)
255432
Corrective Action
Documents
Resulting from
Inspection
Condition Reports
(CR)
10951752, 10951754
Drawings
H-26020, 26021
HPCI System P&ID Sheets 1 and 2
2.0, 41.0
Engineering
Evaluations
Technical
Evaluations (TEs)
1118823, 1118776
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Miscellaneous
Danger 2-DT-R27
Tagout Clearance 2-DT-23-2E11-03001(3) for RHR Heat
Exchanger
2/08/2023
ATT 13
Venting RHR Loop A(B) Piping
45.2
Residual Heat Removal System
45.2
High Pressure Coolant Injection (HPCI) System
31.2
Reactor Core Isolation Cooling (RCIC) System
28.4
Decay Heat Removal System
19.1
Procedures
HPCI Pump Operability
39.2
Corrective Action
Documents
Condition Report
(CR)
10960416
Corrective Action
Documents
Resulting from
Inspection
Condition Reports
(CR)
10553429, 10956429, 10958643
NMP-ES-035-
019-GL02-F01
Control Building ELEV 112'
1.0
NMP-ES-035-
019-Gl02-F05
Control Building 180-foot elevation.
1.0
NMP-ES-035-
019-GL02-F25
U2 Turbine Building ELEV 112'
1.0
NMP-ES-035-
019-GL02-F33
U2 Reactor Building ELEV 203-Foot
1.0
Fire Plans
NMP-ES-035-
GL02-F29
Unit 2 Reactor Building Elevation 130 foot and below.
1.0
Miscellaneous
Drill S-FP-115
(Fire Drill 1)
Charlie Team Evaluation Form
03/17/2023
NMP-TR-425-F01
Fire Drill Scenario Development and Approval Sheet (Unit 1
C/D SWGR Room 130-foot Control Building)
6.0
NMP-TR-425-F01
Fire Drill Scenario Development and Approval Sheet (Unit 2
C/D SWGR Room 130-foot Control Building)
6.0
Procedures
NMP-TR-425-F14
Fire Drill Package
4.0
Work Orders
Work Order
(SNC)
208789
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
H-RIE-IF-U00-001
Hatch Internal Flood Notebook - Tasks 1, 2, and 3
10/03/2018
H-RIE-IF-U00-002
Hatch Internal Flooding Notebook - Task 4 - Documentation
of flood area qualitative screening
10/05/2018
H-RIE-IF-U00-006
Hatch Flood Notebook, Task 9, PRA Modeling of Flood
Scenarios
10/05/2018
H-RIE-U00-003
Hatch Flood Notebook - Task 5 - Characterization of Flood
Scenarios
10/05/2018
Calculations
SCNH-13-021
Evaluation of Plant Hatch Local Intense Precipitation -
Severe Accident Management (SAM) for Fukushima Near-
Term Task Force (NTTF) Recommendation 2.1 Flooding
Evaluation
1.0
Hatch Final Safety Analysis Report, Sections 2.4 and 9.3
35.0
Miscellaneous
E. I. Hatch Individual Plant Examination
2/01/1992
Loss of Plant Service Water
13.13
Procedures
Fire Protection System Failures
4.3
Corrective Action
Documents
Condition Report
(CR)
10945505, 10946536
Procedures
NMP-ES-012-F01
Heat Exchanger Inspection Report
1.0
Work Orders
Work Order
(SNC)
1016455
23-001
2R27 Outage Shutdown JITT
01/20/2023
Miscellaneous
Form 6: Just-In-
Time Training
2R27 Outage Shutdown JITT
01/23/2023
Procedures
NMP-RE-008-F01
Detailed Reactivity Management Plan (Hatch - Unit 2 Cycle
27)
07/28/2023
Condition Reports
(CRs)
2479, 10946502, 10946508
Various
Corrective Action
Documents
Corrective Action
Report (CAR)
210108
Corrective Action
Documents
Resulting from
Inspection
Condition Reports
(CRs)
10947418, 10951946
Various
Drawings
H29256
Plant Hatch Unit NO. 2 Substation Conc. 500 KV Switchyard
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Tower Caissons & Fdns. NL & Reinf.
SNC1266997
U2 PSW Pump Venturi Replacement DECP
Engineering
Changes
SNC1440523
Change Orientation of Valve Disc (2T48-F319/F320)
2/14/2023
RER C100305001
2010 Structural Monitoring Inspection
03/01/2011
RER SNC546900
Plant Hatch Unit 1 Structural Monitoring Inspection Report -
2014
03/19/2016
Engineering
Evaluations
RER SNC921613
Plant Hatch Unit 1 Structural Monitoring Inspection Report -
2018
09/11/2018
200 T-ring Interchangeability
2/25/2021
Letter from
Vendor Emerson
U2 Primary Containment Vent and Purge Valve Failures
Licensee White
Paper
Discussion of the LLRT Failure Causes for the 2T48 Primary
Containment Isolation Valves
2/17/2023
NRC Event
Notification (EN)
563342
Appendix J Program - LLRT Penetration Failure Associated
with 2T23-X026 (2T48-F319 & 2t48-F320)
07/07/2023
Purchase Order
SNG10285421
Dual Channel Permanent Flow Meters
04/26/2022
Purchase Order
SNG10285421(1)
PSW Ultrasonic Flowmeters
04/24/2022
Purchase Order
SNG10300549
Flexim Dual Triax Transducer Extension Cables
2/02/2022
Miscellaneous
Purchase Order
SNG10300549(1)
PSW Ultrasonic Transducers
2/02/2022
Unit 2 LLRT 2T48-F319 & 2T48-F320
2/15/2023
MNP-ES-027
9.0
NMP-AD-002-F08
Support/Refute Matrix (2T48-F319/F320 Valves)
1.0
NMP-ES-021
Structural Monitoring Program for the Maintenance Rule
2.0
Procedures
NMP-ES-065
CFR 50.69 Program
5.0
SNC1388269
2A PSW Pump Venturi Replacement
2/15/2023
SNC1388271
2C PSW Pump Venturi Replacement
2/15/2023
SNC1390416
2A PSW Pump Ultrasonic flow Transmitter installation.
2/18/2023
Work Orders
(SNC)
SNC1404826
2R27-Install permanent power to the new venturi flow
meters.
2/18/2023
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Corrective Action
Documents
Condition Report
(CR)
10953467
Corrective Action
Documents
Resulting from
Inspection
Condition Report
(CR)
10948481, 10950293
Unit 1 RICT On-Line Configuration Risk Monitor Current
Risk Summary Report
03/03/2023
Unit 1 RICT On-Line Configuration Risk Monitor Current
Risk Summary Report
03/27/2023
1-ET-23-1E11-
00106
Equipment Tagout - RHR Loop 1A for System Outage
3/25/2023
2-ET-23-1G71-
0016
Equipment Tagout - Decay Removal System (U1 203-foot
RB, R/R Airlock Roof)
01/2702023
Miscellaneous
2-ET-23-2E11-
00025 (1)
Equipment Tagout - 2A RHR for SDC Unit 2 Outage 2R27
2/21/2023
Shutdown/Refueling Mode Preparation Strategy For Flex
1.2
Outage Safety Assessment
5.5
NMP-GM-031
On-Line Configuration Risk Management Program
6.0
Procedures
NMP-OS-010-02
Hatch Protected Equipment Logs
2.3
Corrective Action
Documents
Condition Reports
(CRs)
10957414, 10960409, 10952899, 10953174, 10944365,
10936048, 10936047, 10943940, 10931208, 10931224,
10931346, 10931584
Various
H-17159
Unit 1 High Pressure Coolant Injection System E41
Elementary Sheet 3
30.0
H-17160
Unit 1 High Pressure Coolant Injection System E41
Elementary Sheet 4 Of 11
H-23775
Edwin I. Hatch Nuclear Plant Elementary Diagram - 2R43B
Diesel Generator 2B Sheet 3
17.0
Drawings
H17073
Control Building Control & Cable Spreading Rooms Air
Conditions System Z41 Elementary Diagram Sheet 6
RBA-23-001-H
Evaluation of NFPA-805 Impacts From EHC Oil Spill
2/08/2023
Engineering
Evaluations
Request for
Engineer Review
Evaluation of Insulation Integrity of Cables Exposed to EHC
Fluid
2/21/2023
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
(RER)
Technical
Evaluations (TEs)
1117219, 1117743, 1118315
Various
Condition Reports
(CRs)
10931208,
10931224,
10931346
Crew Learning: Control Room Envelope
1-LCO-22-00216
MCR AHU 1Z41B003C is Inoperable and 1Z41B003B
Remains Tracking with Failure to Auto Start in Standby.
01/04/2023
Miscellaneous
2-LCO-22-00113
Control Room Envelope Seal Penetration 1Z43H661J
2/13/2022
Control Room Ventilation System
24.0
Control Room Habitability Program (Attachment 1)
2.0
NMP-MA-050
Work Package Preparation
2.2
Procedures
NMP-MA-050-F02
Work Planner Checklist MWO
4.0
Corrective Action
Documents
Resulting from
Inspection
Condition Report
(CR)
10951946
H-53194
Unit 2 Electrical Equip. Layout Partial Plans Control Building
1.0
H-53195
Unit 2 Electrical Equip. Layout Sections & Details Sheet 2 of
1.0
H-58347
Wiring Diagram PSW Ultrasonic Flow Transmitters
Drawings
1305918C001, 1305918C002, 1305918E001,
1305918E101, 1305918E004, 1305918SK01, 1305918SK02
Engineering
Changes
SNC1266997
Unit 2 PSW Pump Venturi Replacement DECP
Procedures
NMP-ES-065
CFR 50.69 Program
5.0
SNC1388270
2B PSW Pump Venturi Replacement
2/05/2023
SNC1388273
2D PSW Pump Venturi Replacement
2/05/2023
Work Orders
Work Order
(SNC)
9808800, 1305918, 1364612, 1364945
Various
NMP-OS-009-F01 Restart Review Checklist
2/24/2023
Miscellaneous
List of Temp Mods and Mods Implementation for 2R27
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Refueling Outage
Fitness for Duty Records Reviewed for Maintenance,
Operations and Security for 2R27 Refueling Outage
2/27/2023
PRB Meeting
23-004
Startup PRB - H2R27
2/23/2024
34-GO-OPS-015-
Maintaining Cold Shutdown Or Refueling Conditions
16.2
Plant Startup
51.12
Normal Plant Shutdown (Attachment 1:
Cooldown/Depressurization Checks)
01/29/2023
NMP-MA-007-001
SNC Rigging and Lifting Program Planning and Evaluation
to Lift Generator Rotor Field to the Turbine Deck
2/13/2022
NMP-OM-002
Appendix A
H2R27 Shutdown Safety Assessment (Summary Report
Meeting Final Report)
01/12/2023
NMP-OS-019-253
Hatch Unit C SIG-12, Mode 4/5 RPV Inventory Control
2.3
Procedures
NMP-RE-008-F01
Detailed Reactivity Management Plan (H2C28-022623-001)
2/25/2023
Corrective Action
Documents
Condition Reports
(CR)
10952393, 10952877
Various
Corrective Action
Documents
Resulting from
Inspection
Condition Reports
(CRs)
10944592
Unit 2 2023 New LPRM (44-21, 36-37, 12-37, 44-37, 20-
21,12, & 12-21) IV Curves and TDR Curves.
LPRM Phase 3 Data
2/16/2023
Miscellaneous
LPRM Maintenance Overview Summary 2R27
2/13/2023
Residual Heat Removal System
46.4
Decay Hear Removal System
19.1
1.1
Low Low Set LSFT
1.1
Residual Heat Removal Pump Operability
30.1
RHR Valve Operability
21.6
Diesel Generator 1A Fast Start Test
16.5
Procedures
Diesel Generator 1B LOCA/LSFT
2.5
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Diesel Generator 2C LOCA/LOSP LSFT
2.6
Diesel Generator 1B LSFT
4.0
Diesel Generator 2C LSFT
3.0
2-SV-TET-001-0
Unit 2 LLRT 2T48-F0319 & 2T48-F320
2/15/2023
Control Rod Scram Testing
2.3
Primary Containment Periodic Type B & Type C Leakage
Tests (MSIV)
37.3
LPRM I/V Curve Using GE Provided Laptop Program Data
Sheet
20.5
LPRM Cables And Connectors
2.2
Neutron Monitoring System Detector Pre-Installation Tests 5.5
Testing The LOCA/LOSP Timer Cards
7.2
FLDAIRCOMP3Y-
H
Diesel Air Compressor Performance Test Work Instructions
03/14/2023
NMP-AD-002-F04
Troubleshooting Log (1A EDG)
1.1
NMP-AD-002-F04
Troubleshooting Log (SNC1016160)
2/15/2023
NMP-MA-014-001
Post Maintenance Testing Guidance
5.9
NMP-OS-028
Adverse Condition Monitoring Program (Elevated U2 DWFD
Leakage Rate Post 2R27)
1.0
Work Orders
Work Order
(SNC)
2121, 802502, 901917, 961089, 1005194, 1015835,
1016592, 1100646, 1277279, 1290006, 1359065, 1399047,
1399048, 1399049, 1399053, 1399054, 1399061, 1450172,
1450216, 1450217, 1453110, 1455959, 1458235
Various
Emergency Preparedness Observation Form
03/22/2023
Emergency Preparedness Observation Form
03/15/2023
Miscellaneous
H-LR-AF-00107
Reactor Feed Pump Turbine Cooling, Safety Relief Valve
Open, Loss of Feedwater Heating, Loss of Coolant Accident
in the Drywell (DW), DW Spray Failure, Reactor Core
Isolation Cooling Controller Failure
2.0
Corrective Action
Documents
Condition Reports
(CRs)
10792304, 10893012, 10893861, 10823349, 10775455,
10788677, 10802977, 10811301, 10819111, 10828518,
10838217, 10863205, 10890283, 10903314, 10906532, and
10924133
Various
Corrective Action
CR 10946360
NRC comment concerning swing gate at High Radiation
2/7/2023
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Area boundary of U2 TIP Room
CR 10946444
NRC Observation (Contaminated Area Boundary Needing
Improvement)
2/7/2023
CR 10946460
NRC Observation ("Contact RP" Ladder Labeling
Inconsistency)
2/7/2023
CR 10946840
Red flashing light needs bulb replaced.
2/08/2023
CR 10947178
Alpha contamination surveys not utilizing the highest smears
consistently
2/09/2023
Documents
Resulting from
Inspection
CR 10948496
High Radiation Area boundary postings in the Unit 2A
condenser did not Include all accessible points
2/15/2023
2018 Alpha characterization study
11/05/2018
NMP-HP-204-F06
Respirator Use Evaluation Worksheet (TEDE ALARA
Evaluation) for RWP 23-2602, U2 DW Initial Entry Surveys
7/8/2022
NMP-HP-204-F06
Respirator Use Evaluation Worksheet (TEDE ALARA
Evaluation) for RWP 23-2204
2/9/2022
Miscellaneous
NMP-HP-205-F06
Respirator Use Evaluation Worksheet (TEDE ALARA
Evaluation) for RWP 23-2615, CRD Removal/Replacement
1/31/2023
NMP-HP-300
Radiation and Contamination Surveys
5.8
Procedures
NMP-HP-302
Restricted Area Classification, Postings, and Access Control
2.9
Radiation
Surveys
203370
Unit 2 360 degree platform
2/07/2023
Radiation Work
Permits (RWPs)
23-2622
Unit 2 refuel outage high radiation area activities in the
drywell
Corrective Action
Documents
Condition Reports
(CRs)
10773429, 10796005, 10852194, 10872403, 10873344,
10881500, 10929659, and 10937326
Various
CR 10948467
NRC Comment - NRC RP Inspection - Respirator Wash
Room
2/15/2023
Corrective Action
Documents
Resulting from
Inspection
CR 10948469
NRC Comment - NRC RP Inspection - Hatch Site
procedures overlap and/alignment with Fleet RP procedure.
2/15/2023
Quarterly Grade "D" Air Analysis Results for Multiple
Systems (Unit 1 and Unit 2 service air compressors, Eagle
air compressor (SCBAs). [3rd qtr. 2022]
7/22/2022
Miscellaneous
Quarterly Grade "D" Air Analysis Results for Multiple
Systems (Unit 1 and Unit 2 service air compressors, Eagle
1/27/2023
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
air compressor (SCBAs). [1st qtr. 2023]
Respirator Issue Log - January 29 to February 7, 2023
Various
NMP-HP-501-
003, Data Sheet 1
In-Use Respirator Inspection Worksheet (July 2022)
8/10/2022
Self-Assessments TE#: 1097224
22 Pre-NRC Radiation Protection (RP) Check-In Self-
Assessment
WO #
SNC839149
Testing of Control Room Habitability Filter Trains (B Train
Charcoal Adsorber sample and analysis)
9/9/2021
WO #
SNC992454
Testing of Control Room Habitability Filter Trains (B Train
Charcoal Adsorber sample and analysis)
1/24/2023
Work Orders
Work Order (WO)
- SNC805890
Testing of Control Room Habitability Filter Trains (A Train
Charcoal Adsorber sample and analysis)
9/9/2021
Corrective Action
Documents
Condition Reports
(CRs)
10778929, 10818336, 10818338, 10818339, 10818341,
10818343, 10864491, 10906532, 10908820, and 10927138
Various
CR 10788003
Training Request from Performance Analysis - Evaluating
Unknown Peaks on WBC Reports.
04/05/2021
CR 10851676
01/17/2022
CR 10912755
AMP-100s S/N 5505-131 and 5006-146 found outside of
acceptable calibration tolerance limits.
10/06/2022
Corrective Action
Documents
CR 10939799
U2 Reactor Building Vent Radiation Monitor Not Functioning
Correctly
01/15/2023
CR 10946424
The ARM on the upper elevation of the Main Stack alarms
intermittently.
2/7/2023
CR 10947302
Adverse Trend - RB Vent Stack Rad Monitors
2/10/2023
CR 10948458
Lessons Learned - RP NRC Inspection Slow to Respond
2/15/2023
Corrective Action
Documents
Resulting from
Inspection
CR 10950640
Gaps in the NRC 2023 RP CISA and initial information
request
2/22/2023
Unit 2 Power History Curves for Quarters 1, 2, 3 & 4 2022
Unit 1 Power History Curves for Quarters 1, 2, 3 & 4 2022
Unit 2 Control Room Operator Logs for 2022
Unit 1 Control Room Operator Logs for 2022
71151
Miscellaneous
NRC Licensee
Event Report:
LER 2022-001-00
Manual Reactor Scram due to Reactor Pressure
Perturbations
2/18/2022
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Condition Report
(CR)
10925361
Corrective Action
Documents
Corrective Action
Report (CAR)
2462
Corrective Action
Documents
Condition Reports
(CR)
10847628, 10847670, 10847873, 10847919, 10848192,
10848210, 10848212, 10848274, 10848702, 10848760,
10849432, 10852590, 10854350, 10854912, 10855148,
10855514, 10856630, 10856718, 10863403, 10863515,
10863579, 10863937, 10863938, 10863992, 10864838,
10866195, 10868234, 10868825, 10869084, 10872650,
10872825, 10876920, 10877272, 10882194, 10883087,
10883964, 10884712, 10885749, 10887810, 10891422,
10893017, 10893859, 10900807, 10902200, 10904223,
10906852, 10907730, 10915419, 10915439, 10915569,
10915889, 10916820, 10919352, 10919470, 10919786,
10920506, 10920526, 10923219, 10926624, 10927777,
10929993, 10930947, 10931553, 10933322, 10933510,
10937689, 10942429, 10943500, 10943533, 10963403,
10857209, 10857366, 10857829, 10859427, 10921534,
10924335, 10945502, 10946038, 10949197, 10856648
Various
H-11250
RFP Seal Water, Leakoff and Drains
H-11604
Unit 1 PI&D Condensate & Feedwater System Sheet 3
54.0
H-11605
Unit 1 PI&D Condensate & Feedwater System Sheet 4
2.0
H-21031
Unit 2 Main & RFP Turbine Drains P&ID
54.0
H-21038
Unit 2 Condensate & Feedwater P&ID Sheet 2 of 3
17.0
H-46540
Unit 1 Condensate/Feedwater FAC Inspection Isometric
2.0
H-46540
Unit 1 Condensate/Feedwater FAC Inspection Isometric
(Denotes Inspection Component Numbers)
2.0
H21014
Unit 2 Extraction Steam P&ID
29.0
H21070
Unit 2 Extraction Steam To Steam To 1oth Stage LP
Heaters
2.0
H51132
Unit 2 Extraction Steam To 10th Stage Heaters FAC
Inspection Isometrics
18.0
Drawings
H51756
Core Spray System Pump A Discharge To RPV Storage
2.0
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Tank FAC Inspection Isometrics
H52064
Unit 2 12th Stage Heater Vents FAC Inspection Isometrics
8.0
Engineering
Evaluations
Technical
Evaluation (TE)
1093008
Work Orders
Work Orders
(SNC)
0572272, 0646586, 1000653, 1000654, 1000655, 1095818,
1110822, 1140706, 1144133, 1144831, 1196853, 1196854,
208904, 1217443
Various
Scram Procedure
14.3
Procedures
Normal Plant Shutdown
33.7