ML23038A155
| ML23038A155 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 01/12/2023 |
| From: | NRC/RGN-III/DORS/OB |
| To: | |
| Greg Roach | |
| Shared Package | |
| ML21188A232 | List: |
| References | |
| Download: ML23038A155 (4) | |
Text
ES-3.3, Page 16 of 17 Form 3.3-1 Scenario Outline Facility:
Perry Scenario #:
- 1 - 100% Power Scenario Source:
New Op. Test #:
2022-1 Examiners:
Applicants/
Operators:
Initial Conditions: Plant is at 100% power. Main Generator was placed on the Manual Voltage Regulator yesterday for repair of the Auto Voltage Regulator. Maintenance is now complete on the Auto Voltage Regulator.
Containment Spray valve 1E12-F537A is tagged out for MOVATS testing. HPCS Pump, 1E22-C001 tagged out for seal leak repair. Stator Water Cooling pump B 1N43-C001B is tagged out for motor replacement. Hydrogen Analyzer B is tagged out for inlet cooling valve replacement. SCC will request a power reduction later this shift.
eSOMS Narrative Log is down. PSA Risk is Green and the Grid Risk is Normal.
Turnover / Planned Activities: Shift main generator from Manual Voltage Regulator to Auto Voltage Regulator then lower power to meet SCC request IAW reactivity plan and IOI-3 when contacted by SCC. Make any Narrative Log entries on your note pads.
Critical Tasks:
- 1. Isolate Secondary Containment leak
Malf.
No.
Event Type*
Event Description 1
N-BOP/SRO Shift Main Generator to Auto Voltage Regulator 2
R-ATC/SRO Extraction Steam isolated to FW Heater #6A Enter ONI-N36 3
C-ATC/SRO Condensate Booster Pump A trips 4
I-BOP/SRO TS - SRO MC-BOP RCIC Suppression Pool Level instrument fails high 5
C-BOP/SRO TS - SRO MC-BOP Leak in RWCU pump room Enter EOP-03 6
M-All Loss of Feedwater 7
C-ATC MC-ATC RPS fails in AUTO and MANUAL. ARI works in MANUAL or AUTO Enter EOP-01 8
C-ATC MC-ATC Generator Field Breaker fails to auto open 9
M-All Loss of High-Pressure Injection - Anticipate Emergency Depressurization 10 M-All (Conditional) ED if unable to maintain RPV level > -25 with LPCS (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor, (TS)Tech Spec, (MC)Manual Control
ES-3.3, Page 16 of 17 Form 3.3-1 Scenario Outline Facility:
Perry Scenario #:
- 2 - 80% Power Scenario Source:
New Op. Test #:
2022-1 Examiners:
Applicants/
Operators:
Initial Conditions:
Plant is at 80% power due to FW limitations. CCCW Chill Water Pump C, P47-C001C is tagged out for motor replacement. Stator Water Cooling Pump B, N43-C001B is tagged out for bearing replacement. The M29 Control Room Humidification Boiler is tagged out for leak repair. Hydrogen Analyzer B was tagged out yesterday for inlet cooling valve replacement (One day into the LCO). CNTMT SPRAY SECOND SHUTOFF, 1E12-F537A is tagged out for MOVATS testing (Twelve hours into the LCO). Replacement of a speed sensor on RFPT B is complete. Maintenance Engineer requested Ops to pause RFPT B startup at various RPMs to gather data. Currently RFPTs A & B are in AUTO and the MFP is in MANUAL. eSOMS Narrative Log is down. PSA Risk is Green and the Grid Risk is Normal.
Turnover / Planned Activities: Continue Feedwater shift from MFP to RFPT B. An NLO is on station to support the shift. Raise reactor power to 85% power IAW reactivity plan and IOI-3. Make any Narrative Log entries on your note pads. Perform Prejob Briefs and Reactivity Briefs prior to entering the Simulator.
Critical Tasks:
- 1. Insert manual reactor scram when power oscillations are observed and auto RPS fails
- 2. When Containment temperature cannot be maintained < 185 °F, perform ED Event No.
Malf.
No.
Event Type*
Event Description 1
N-BOP/SRO Shift from MFP to RFPT A & B in service 2
R-ATC/SRO Raise Rx power to 85% (Control Rods) 3 C-ATC/SRO TS-SRO Uncoupled Control Rod Tech Spec 3.1.3 4
C-BOP/SRO ESW Pump House Fan B loses power 5
C-ATC/SRO MC-ATC HST Level Control Valve, N21-F230 fails closed 6
TS-SRO Combustible Gas Mixing Compressor A power loss Tech Spec 3.6.3.3 7
C-ATC/SRO Rx Recirc pumps down-shift to SLOW Enter ONI-C51 8
C-ATC/SRO Power oscillations Enter EOP-01 on failure to Scram 9
M-ALL SDV Leak in Containment Enter EOP-02 10 C-BOP/SRO Failure of Containment Spray valve Enter EOP-01-2 Emergency Depressurize 11 C-BOP/SRO SRV B21-F041A fails to open on ED (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor, (TS)Tech Spec, (MC)Manual Control
ES-3.3, Page 16 of 17 Form 3.3-1 Scenario Outline Facility:
Perry Scenario #:
- 3 - 96% Power Scenario Source:
New Op. Test #:
2022-1 Examiners:
Applicants/
Operators:
Initial Conditions:
Power was reduced two hours ago to 96% for surveillance testing, which is now complete.
SCC has requested we restore to rated power. The M29 Control Room Humidification Boiler is tagged out for leak repair. TBCC Pump C, P44-C001C is tagged out for seal replacement. Stator Water Cooling Pump B, N43-C001B is tagged out for bearing replacement. Hydrogen Analyzer B was tagged out yesterday for inlet cooling valve replacement (One day into the LCO). eSOMS Narrative Log is down. PSA Risk is Green and the Grid Risk is Normal.
Turnover / Planned Activities: Raise Reactor Power to 100% IAW reactivity plan and IOI-3 per SCC request.
Start HPCS in Full Flow Test SP mode for vibration analysis. An NLO is on station to support HPCS startup. Contact Maintenance Engineer for vibration analysis when HPCS is started. Once vibration analysis is complete, place HPCS in Standby. Perform Prejob Briefs and Reactivity Briefs prior to entering the Simulator.
Critical Tasks:
- 1. Manually start non-running Emergency Service Water loops
Malf.
No.
Event Type*
Event Description 1
R-ATC/SRO Raise Reactor Power to 100% (Flow) 2 N-BOP/SRO TS-SRO Start HPCS in Test Mode to Suppression Pool Tech Spec 3.5.1 3
C-BOP/SRO NCC A Pump trip Enter ONI-P43 4
C-ATC/SRO APRM H fails upscale 5
C-BOP/SRO TS-SRO Shutdown HPCS Test Valve, E22-F023 Loses power Tech Specs 3.5.1 & 3.6.1.3 6
C-BOP/SRO R-ATC/SRO Earthquake > OBE Enter ONI-D51 Initiate Normal Rx Shutdown:
Start all ESW loops 7
TS-SRO Earthquake causes leak in SLC tank Tech Spec 3.1.7 8
C-ATC/SRO 2nd Earthquake causes Loss of Feedwater Enter EOP-01 9
M-All MC-ATC Low power ATWS Enter EOP-01-5 10 C-BOP/SRO MC-BOP RCIC auto start failure (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor, (TS)Tech Spec, (MC)Manual Control
ES-3.3, Page 16 of 17 Form 3.3-1 Scenario Outline Facility:
Perry Scenario #:
- 4 - 1% Power Scenario Source:
New Op. Test #:
2022-1 Examiners:
Applicants/
Operators:
Initial Conditions: Plant startup following a planned shutdown is in progress per IOI-0002, Hot Startup, Section 4.5, with the Reactor currently at ~220 psig (Mode 2). RFBPs are in service on Low Flow Control. The MFP is tagged OOS. RPV Level band is 192 - 200 in. I&C is performing SVI-B21-T1176, RCS H/U & C/D surveillance.
HPCS was tagged out 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> ago for a 10CFR Part 21 defect on the HPCS Pump breaker cell switch. The cell switch has been replaced and HPCS will be returned to service later this shift. Maintenance Services is demobilizing tools and equipment from ECCS rooms. Main Turbine Shell Warming time commenced 30 minutes ago. eSOMS Narrative Log is down. PSA Risk is Green and Grid Risk is Normal.
Turnover / Planned Activities: Withdraw control rods to obtain 80% open on #1 Bypass Valve then shift Feedwater from RFBPs to RFPT A. An NLO is on station to support the FW shift. Then, continue Reactor heat-up and transition into Mode 1 per IOI-0002 (Section 4.7). The RE recommends gang rod movement where not prohibited by the pull sheets. Make any Narrative Log entries on your note pads. Perform Prejob Briefs and Reactivity Briefs prior to entering the Simulator.
Critical Tasks:
- 1. Shut MSIVs to prevent exceeding 100 °F per hour cooldown rate
- 2. Emergency Depressurize when unable to maintain Suppression Pool level >14.25 feet Event No.
Malf.
No.
Event Type*
Event Description 1
R-ATC/SRO Continue startup and maintain Heat-up rate. (BPV-1 20-80% Open) 2 N-BOP/SRO Shift RFPT to Low Flow Controller 3
TS/SRO Inadvertent HPCS Initiation Tech Specs 3.3.5.1, 3.5.1, 3.3.6.1 4
C-BOP/SRO MC-BOP TS/SRO HPCS ESW Pump Discharge valve fails to open automatically Tech Spec 3.7.2 5
C-ATC/BOP/
SRO Short-circuit in Bypass Valve Jack control circuit causing depressurization resulting in excessive cooldown (SCRAM & Activities to minimize cooldown) 6 C-ATC/SRO CRD Suction Filter clogs and pump trips preventing manual control rod insertion (Able to restore CRD) 7 C-ATC/SRO MC-ATC One control rod fail to insert, shutdown criteria is met 8
M-All Dropped N2 cylinder in RHR C Pump Room. Supp Pool Leak Enter EOP-03 and EOP-02 C-Crew Water-tight door in RHR C Pump room wont close Enter EOP-01 and EOP-01-2 (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor, (TS)Tech Spec, (MC)Manual Control