ML22250A681
| ML22250A681 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 06/30/2022 |
| From: | Ted Wingfield NRC/RGN-III/DRS/OLB |
| To: | Indiana Michigan Power Co |
| Wingfield T | |
| Shared Package | |
| ML21263A038 | List: |
| References | |
| Download: ML22250A681 (4) | |
Text
Op. Test No.: Cook 2022 Scenario No.: NRC2022-2 Form 3.3-1 Page 1 of 1 Form 3.3-1 Scenario Outline Facility: DC COOK 1 & 2 Scenario #: NRC2022-1 Scenario Source: New Op. Test #: Cook 2022 Examiners:
Applicants/
Operators:
Initial Conditions: 100% Power Turnover: The plant is at 100% power and the crew is directed to maintain power at 100% and swap Stator Cooling Water Pumps for maintenance when clearance is ready.
Critical Tasks**: 1. Manually trip the reactor
- 2. Energize at least one AC emergency Bus Event No.
Malf. No.
Event Type*
Event Description**
1 U2_QLC451 I-RO QLC-451, VCT Level Transmitter, fails Low 2
U2_FFC210 I-BOP MC-BOP TS FFC-210, Feed Water Flow Instrument, SG #21 Channel 1, fails High 3
U2_NFP210 TS RCS Flow Instrument fails low 4
N-BOP Swap Stator Cooling Water Pumps 5
U2_TP03 C-BOP R-RO MC-RO Stator Water Cooling leak Perform 2%/min Rapid Power Reduction Control VCT level in manual 6
U2_NPP151 U2_RP16A I-RO Pressurizer pressure controlling channel fails high with mechanical failure of one spray valve open (EOP entry) 7 U2_RCO1A U2_101TD6 U2_101TA4 M-CREW C-CREW LBLOCA following Rx trip RHR Pumps Auto Start failure Transfer to Cold Leg Recirculation
- (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor, (TS)Tech Spec, (MC)Manual Control
- Details on subsequent pages
Op. Test No.: Cook 2022 Scenario No.: NRC2022-2 Form 3.3-1 Page 1 of 1 Form 3.3-1 Scenario Outline Facility: DC COOK 1 & 2 Scenario #: NRC2022-2 Scenario Source: New Op. Test #: Cook 2022 Examiners:
Applicants/
Operators:
Initial Conditions: 100% Power, breaker T21C3 is OOS due to control power failure, T.S.
3.8.1.B in effect.
Turnover: As part of Post Maintenance testing for breaker T21C3, DG2CD output breaker to Bus T21C, start DG2CD per marked up copy of 2-OHP-4021-032-001CD, run loaded on Bus T21C at 900-1100 KW, then shut down the DG per the NOP.
Critical Tasks**: 1. Manually trip the reactor
- 2. Energize at least one AC emergency Bus Event No.
Malf. No.
Event Type*
Event Description**
1 N-BOP Perform DG2CD start per NOP 2
U2_EG14O ZGI101WMO726_
U2 ZGI101WMO728_
U2 C-BOP TS Failure of DG2CD ESW Supply 3
U2_RD07H C-US R-RO MC-RO Uncontrolled automatic Control Rod Insertion Restore control rod position 4
U2_NLP151 I-RO MC-RO TS Controlling Pressurizer Level Channel fails High 5
U2_SW09 C-BOP TS Loss of Containment Cooling 6
RP01A RP01B U2_RCP1 C-RO 21 RCP Trip with Automatic Reactor Trip Failure (EOP entry) 7 U2_ED05E U12_ED25B U12_ED25C M-CREW Loss of Bus T21A/Loss of Offsite Reserve Power
- (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor, (TS)Tech Spec, (MC)Manual Control
- Details on subsequent pages
Op. Test No.: Cook 2022 Scenario No.: NRC2022-2 Form 3.3-1 Page 1 of 1 Form 3.3-1 Scenario Outline Facility: DC COOK 1 & 2 Scenario #: NRC2022-3 Scenario Source: New Op. Test #: Cook 2022 Examiners:
Applicants/
Operators:
Initial Conditions: 100% Power Turnover: After crew turnover, swap NESW pumps and place the currently running pump in standby mode. After NESW pumps are swapped, reduce load to 95% in preparation for turbine valve testing.
Critical Tasks**: 1. Isolate ruptured SG
- 2. Control initial RCS cool down
- 4. Terminate ECCS flow Event No.
Malf. No.
Event Type*
Event Description**
1 N-BOP Start South NESW Pump and Stop the North NESW pump.
2 R-RO Commence power reduction to 95%
3 U1_NPP151 I-RO MC-RO TS Pressurizer Pressure Channel Fails Low 4
U2_101GLC2 C-BOP M-BOP Bus Duct Cooling Fan Failure with failure of the standby fan to auto start 5
U2_SW07A C-BOP MC-BOP Main Turbine Oil Temperature Controller Failure 6
U2_RC23B
@1%
C-RO TS MC-RO SG Tube Leak 7
U2_RC23B ZGI43SDI_U2 U2_RC15A M-CREW C-CREW C-CREW Steam Generator Tube Rupture (EOP entry)
Steam Dump System failure Pressurizer spray valve NRV-163 fails open during RCS depressurization
- (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor, (TS)Tech Spec, (MC)Manual Control
- Details on subsequent pages
Op. Test No.: Cook 2022 Scenario No.: NRC2022-2 Form 3.3-1 Page 1 of 1 Form 3.3-1 Scenario Outline Facility: DC COOK 1 & 2 Scenario #: NRC2022-4 Scenario Source: New Op. Test #: Cook 2022 Examiners:
Applicants/
Operators:
Initial Conditions: 80% power. The South Condensate Booster Pump is running with slightly elevated temperatures.
Turnover: After turnover, shift the Condensate Booster Pumps to the Middle Pump in service and the South Pump in standby. Then, continue power increase to 100% power.
Critical Tasks**: 1. Isolate Main Turbine from SGs during ATWS.
Event No.
Malf. No.
Event Type*
Event Description**
1 N-BOP Shift Condensate Booster Pumps 2
R-RO Raise reactor power 3
U2_QFI200 I-RO MC-RO Charging Flow Instrument QFI-200 fails low 4
U2_ECC short U2_CC02B C-BOP M-BOP TS Running CCW pump failure, CCW pump Auto start fails 5
U2_QLC452 I-RO VCT Level channel 2-QLC-452 Fails High 6
U2_BLP141 I-BOP MC-BOP TS Controlling SG Level Channel fails high 7
U2_RP12A U2_RP12B U2_RP03A U2_RP03B U2_TC02 U2_RP07A U2_RP07B U2_FW48A U2_FW48B U2_FW48C M-CREW C-CREW C-CREW Inadvertent SI/Loss of Feed ATWS (EOP entry)
Auto & Manual turbine trip failure Auto Main Steam Isolation failure AFWP auto start failures 8
SI Termination
- (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor, (TS)Tech Spec, (MC)Manual Control
- Details on subsequent pages