ML11129A297
| ML11129A297 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 04/25/2011 |
| From: | Mcneil D Operations Branch III |
| To: | |
| References | |
| Download: ML11129A297 (3) | |
Text
Appendix D Scenario Outline Form ES-D-1 Facility: ___Point Beach_____ Scenario No.: __1_____
Op-Test No.: 2011301 Examiners: ____________________________ Operators:
Initial Conditions: _100% reactor power - EOL Turnover: Emergency diesel generator (G01) is OOS, motor-driven auxiliary feedwater pump (P38A) is OOS. The return to service time for both the G01 and P38A is approximately four hours from now. The plant is under a severe weather watch. G02 is aligned to 1A05 and 2A05 in accordance with OI-35A. IT 07G SW valve stroke time test is scheduled to be conducted immediately after shift turnover.
Event No.
Malf.
No.
Event Type*
Event Description 1
N-BOP N-SRO Conduct IT-07G SW Valve Stroke Time Test 2
C-RO C-SRO TS-SRO In-Service Charging Pump Failure 3
I-BOP I-SRO S/G B Level Transmitter ILT-471 Failure High 4
I-RO I-SRO TS-SRO Pressurize Pressure Channel Failure (PT-431) High 5
C-BOP C-SRO TS-SRO Steam Generator Tube Leak 6
R-RO N-SRO N-BOP Conduct Rx Plant Shutdown 7
M-ALL Steam Generator Tube Rupture 8
C-BOP Stuck Open Atmospheric Steam Dump Valve (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor
Appendix D Scenario Outline Form ES-D-1 Facility: ___Point Beach_____ Scenario No.: __2_____
Op-Test No.: 2011301 Examiners: ____________________________ Operators:
Initial Conditions: _ Unit 1 is at 28% power, middle of life.
Turnover: The following equipment is out of service: AB@ safety injection pump in day 3 of 7 of LCO to replace the outboard seal, continuing with power escalation IAW OP-1C, Step 4.120.
Event No.
Malf.
No.
Event Type*
Event Description 1
N-BOP N-SRO Start a Heater Drain Tank Pump.
2 R-RO N-SRO Increase Reactor Power from 28% at the Normal Rate.
2 I-BOP I-SRO TS-SRO Turbine First Stage Pressure Instrument PT-485 Fails Low.
3 I-RO I-SRO TS-SRO Pressurizer Level Instrument 1LT-428 Fails Low.
4 N-BOP N-SRO Restore normal letdown 5
C-BOP C-SRO TS-SRO Power Operated Relief Valve 1RC-430 Seat Leakage.
6 M-ALL Steam Line Break Upstream of the Unit 1 AA@ MSIV.
7 M-ALL Reactor Trip Breakers Fail to Open (ATWS)
C-BOP C-SRO Train AA@ ESF Sequencer Fails to Actuate.
(N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor
Facility: Point Beach Nuclear Station Scenario No.: 3 Op-Test No.: 2011301 Examiners:
D. McNeil Operators:
R. Walton D. Reeser Initial Conditions: Unit 1 is at 23% reactor power, BOL, equilibrium xenon conditions following a reactor trip from full power five days ago due to a failure of the Unit 1 Voltage Regulator. Unit 2 is at 100% reactor power. Present clock time is real time. Normal shift complement with the exception of the 3rd SRO.
Turnover: G-01 EDG is out of service for annual maintenance. It was taken OOS 2 days ago, and is expected to be returned to service in 3 days. G-02 EDG is aligned to 4.16kV buses 1-A05 and 2-A05 IAW OI-35A. P-38B, Electric Auxiliary Feedwater Pump was declared inoperable 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> ago due to recirculation line cracks and has just been tagged out for repair. A severe thunderstorm watch is in effect for the next 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. The RCS is at normal operating pressure and temperature. Steam Generator water level is being controlled with the Main Feedwater Regulating valves in automatic on a single train of feedwater and condensate. OP-1C, "Low Power Operation to Normal Power Operation" is in progress. You are to continue with unit startup per OP-1C.
Event No.
Malf.
No.
Event Type*
Event Description 1
R Normal Up-Power 2
I Thot Instrument (TE-401A) Fails High 3
C Running CCW Pump Shaft Seizes w/Failure of Standby CCW Pump to Auto Start 4
I Controlling SG Pressure Channel (PT-478) Fails High 5
M Small RCS Leak in "A" RCS Loop Degrading to Large Break 6
M Large Break LOCA 7
I Failure of SI to Auto-Actuate 8
C Failure of Containment Accident Fan 1W-1A1 to Auto-Start 9
C Failure of 1SI-852A to Auto-Open
- (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor
@ See scenario description pages 2 & 3 for malfunction numbers.