ML14234A365
| ML14234A365 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 08/04/2014 |
| From: | Vincent Gaddy Operations Branch IV |
| To: | Nebraska Public Power District (NPPD) |
| References | |
| 50-298/14-07 50-298/OL-14 | |
| Download: ML14234A365 (36) | |
Text
Note for Adams Package:
For scenario 2 only there is a final scenario file in the final approved Op test file and an as-given scenario 2 file which is in Adams as its own file. The other scenario ran was scenario 3 and scenario 1 was the spare for this exam.
Two crews (crew 1 and crew 3) failed to diagnose the dryer event properly and therefore created new critical tasks and different paths than expected by the licensee or NRC examiners during validation week and so the ES-D1 and ES-D2 forms are marked up accordingly (electronically) with two paths. Crew 2 took path one and crews 1 and 3 took path 2 with the new write-in critical tasks.
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 1 Event
Description:
RHRSWBP trips Time Position Applicants Action or Behavior NOTE to Examiners: SWB Pump B or D will trip shortly after starting.
Booth Allow the SWBP to run for a couple of seconds before tripping the first Operator one started. Insert Trigger 10 for SWBP B or Trigger 11 for SWBP D.
Place RHRSW system B in service per 2.2.70 5.2.1 Place and hold SWBP B or D switch to START until pump starts.
5.2.2 At Panel 9-3, check SWBP B or D AMPS are normal.
5.2.3 At Panel 9-3, check SW-MO-89B, HX-B SW DISCH VLV, opens.
BOP Respond to alarm 9-3-3/C-1 (Pump B) or 9-3-3/D-1 (Pump D).
2.3 Start SWBP B(D), as required, per Procedure 2.2.70.
Respond to alarm 9-3-3/A-1 (Pump B) or 9-3-3/B-1 (Pump D).
2.3 Start SWBP B(D), as required, per Procedure 2.2.70.
ROLE PLAY: If contacted as the E Shop to investigate the SWBP trip, Booth wait 5 minutes and report a bad overload/ground relay in the start Operator circuit is the cause.
Booth After the E Shop report, call the CRS as AOM Shift and direct the B Operator Loop of RHRSW be placed into service.
CRS Direct BOP to place the other RHRSW pump in service per 2.2.70.
Refers to Tech Spec 3.7.1 Condition A, One RHRSWB Pump inoperable.
CRS Action A.1 Restore RHR suppression pool cooling subsystem to OPERABLE status.
Time 30 Days to restore 5.2.1 Place and hold SWBP B or D switch to START until pump starts.
BOP 5.2.2 At Panel 9-3, check SWBP B or D AMPS are normal.
5.2.3 At Panel 9-3, check SW-MO-89B, HX-B SW DISCH VLV, opens.
Page 7 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 1 Event
Description:
RHRSWBP trips Time Position Applicants Action or Behavior 5.1.4.1 Flow on SW-FI-132B, SW FLOW, between 2500 and 4000 gpm.
5.1.4.2 SWBP B or D AMPS 136 amps.
5.1.5 Ensure differential pressure on SW-DPI-359B, RHR HX B SW SIDE DIVIDER PLATE DIFFERENTIAL PRESSURE (R-903-B RHR HX Room), 17.0 psid.
5.1.5.1 Record SW-DPI-359B P (R-903-B RHR HX Room) in Narrative Logs When requested as NLO to report differential pressure at step 5.2.5 of Booth SW 2.2.70, respond it indicates 5 psid. (<17 psid is procedurally Operator acceptable)
END OF EVENT Notes Proceed to the next event when CRS directs SPC placed into service..
Page 8 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 2 Event
Description:
Place RHR Loop B in Suppression Pool Cooling (Procedure 2.2.69.3)
Time Position Applicants Action or Behavior Directs BOP to place RHR Loop B in Suppression Pool Cooling per 2.2.69.3.
Refers to TS LCO 3.5.1, Condition A: One low pressure ECCS injection/spray subsystem CRS inoperable.
Action A.1 Restore low pressure ECCS injection/spray subsystem(s) to operable status.
Time: 7 days Booth ROLE PLAY: When contacted, report suction line drain flush for hot Operator spots is not required.
Contact ALARA to determine if suction line drain flush for hot spots is needed.
Ensure RHR Subsystem B in Standby Status per Procedure 2.2.69.
Notify Radiation Protection of RHR startup.
BOP IF RHR Subsystem B is being placed in suppression pool cooling to support non-emergency evolutions, THEN perform Section 3 concurrent with this section.
3.1.2 Initiate 6.LOG.601 Torus Average Temperature and Drywell Bulk Average Temperature Log Attachment for testing which adds heat to the suppression pool.
NOTE to Examiners: Annunciator 9-3-1/G-1, ADS AUX COOLING INTERLOCK, is an expected alarm when starting an RHR pump.
Initiate Suppression Pool Cooling:
8.23 Open RHR-MO-39B, SUPPR POOL COOLING/TORUS SPRAY VLV BOP 8.25 Start RHR Pump B or D.
8.26 Throttle open RHR-MO-34B, SUPPR POOL COOLING INBD THROTTLE VLV, to obtain rated cooling flow or as directed by Page 9 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 2 Event
Description:
Place RHR Loop B in Suppression Pool Cooling (Procedure 2.2.69.3)
Time Position Applicants Action or Behavior Control Room Supervisor 8.27 Ensure RHR-MO-16B (min flow valve) closed.
8.28 Perform one of the following:
8.28.1 Close CM-38, LOOP B INJECTION LINE PRESSURE MAINTENANCE SHUTOFF (R-958-SW).
8.28.2 Maintain RHR Subsystem B pressure greater than Condensate Transfer System pressure to prevent filling Torus.
8.29 Throttle closed RHR-MO66B, HX BYPASS VLV, to obtain desired cooling rate.
END OF EVENT Notes Proceed to the next event when the CRS directs lowering reactor power.
Page 10 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 3 Event
Description:
Reduce Power with Reactor Recirculation Time Position Applicants Action or Behavior Conducts Reactivity Briefing.
Notifies Shift Manager and Load Dispatcher of power reduction CRS for HPCI testing.
Directs ATC to lower reactor power to 95% per 2.1.10.
NOTE to Examiners: RR pump flows can be read on recorder RR-FR-163 on VBd 9-4.
Enter Procedure 2.1.10 Station power changes, Section 7 RR FLOW.
7.4 Lower power by lowering RR pump flow. Maintain rate of ATC power change consistent with system capabilities as determined by Load Dispatcher and TG limits.
Monitors reactor power, level, and power-to-flow map.
Reports power lowered to 95% to SRO.
END OF EVENT Notes Proceed to the next event when CRS direct surveillance to begin.
Page 11 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 4 Event
Description:
Perform HPCI Full Flow Test (Procedure 6.HPCI.103)
Time Position Applicants Action or Behavior NOTE to Examiners: The HPCI Aux Oil Pump discharge line rupture is passive until the pump is started.
CRS Directs performance of 6.HPCI.103 ROLE PLAY: When requested to establish communications, respond Both that you are setup and ready to begin 6.HPCI.103 at step 4.16.
Operator Wait 2 minutes and report oil pressures were recorded.
Reviews procedure 6.HPCI.103 in preparation for continuing surveillance.
Establish Communications with local Operator in HPCI room.
Begins at step 4.13 4.13 Informs CRS that HPCI System is inoperable for testing.
BOP 4.14 Step already completed 4.15 Step already completed 4.16 (Time) Start AUXILIARY OIL PUMP and time STOP VALVE opening stroke time ROLE PLAY-After HPCI AOP is started and Trigger 13 becomes active, Booth call the control room and report a large lube oil leak on the AOP Operator discharge piping.
CRS Halt the HPCI surveillance.
Refers to Tech Spec 3.5.1 Condition C and declares HPCI INOP.
Action C.1 Verify by administrative means RCIC System is OPERABLE within one CRS hour AND C.2 Restore HPCI System to OPERABLE status within 14 days.
Page 12 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 4 Event
Description:
Perform HPCI Full Flow Test (Procedure 6.HPCI.103)
Time Position Applicants Action or Behavior Also enters Condition D HPCI system inoperable and Condition A entered.
Action: D.1 Restore HPCI system to OPERABLE status OR D.2 Restore low pressure ECCS injection/spray subsystem to OPERABLE STATUS.
Time: 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> for both D.1 and D.2.
BOP Place HPCI AOP control switch to Pull-To-Lock.
END OF EVENT Notes Proceed to the next event at direction of the lead examiner.
Page 13 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 5 Event
Description:
In-Service CRD FCV fails closed.
Time Position Applicants Action or Behavior Booth When directed by the Lead Examiner, Insert Trigger 6, (CRD FCV fails Operator closed).
Respond to alarm 9-5-2/E-6, CRD CHARGING HEADER HIGH PRRESSURE.
1.1 Check drive water flow control valves for proper operation.
1.2 Adjust CRD-MO-20 to maintain following:
1.2.1 Drive water DP of ~ 265 psid.
ATC 1.2.2 Cooling water DP of ~ 20 psid.
1.3 Adjust charging water pressure manually with CRD-170, PUMP DISCHARGE MANUAL PRESSURE CONTROL VALVE, per Procedure 2.2.8.
1.4 IF annunciator due to CRD flow degradation, THEN enter Procedure 2.4CRD.
Report alarm references 2.4CRD.
Enter Abnormal Procedure 2.4CRD, CRD TROUBLE.
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Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 5 Event
Description:
In-Service CRD FCV fails closed.
Time Position Applicants Action or Behavior Enter 2.4CRD Attachment 5 for cooling water trouble.
CWT-1 CWT-2 CWT-3 Stop Any Cooling Ensure HCU Valve START Rod Water Flow Lineup Correct Movement 45-50 gpm? YES Per Procedure 2.2.8A CWT-4 NO Take Manual Flow Control with CRD-FC-301 CWT-5 Cooling YES Water Flow 45-50 gpm?
CWT-6 CRDM NO temperature
> 350F?
NO CWT-7 CWT-14 CWT-15 Rx Eng and ATC Shift FCVs per Procedure Address OPERABILITY per TS 3.1.4 (ref Proc 10.35) and obtain Rx Eng CRD System Eng Provide 2.2.8 and CRD System Eng Guidance Guidance NO CWT-13 CRDM temperature
> 350F?
CWT-8 Cooling Water Flow YES 45-50 gpm?
NO YES YES CWT-9 CWT-11 CWT-10 CWT-12 Cooling Take Manual Flow Cooling Take Manual YES NO Water Flow Control with Local Water Flow Flow Control with 45-50 gpm? Controller per 45-50 gpm?
CRD-FC-301 Procedure 2.2.8 CWT-16 NO Rx Eng, Management, CRD System Eng Provide Guidance Follow 2.4CRD Attachment 5 path to step CWT-7 and shift FCVs per Procedure 2.2.8.
20.1 Ensure CRD-FC-301 in BAL with settape adjusted, as required, for obtaining
~ 50 gpm cooling water flow.
ATC 20.4 .1 Step performed locally by building operator (controller in manual) 20.4.2 Building operator opens FCV B inlet valve.
20.4.3 Building operator opens FCV B outlet valve.
20.4.4 Building operator ensures FCV A in manual.
Page 15 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 5 Event
Description:
In-Service CRD FCV fails closed.
Time Position Applicants Action or Behavior 20.4.5 Step is N/A because the valve is closed.
20.4.5 Building operator opens FCV B.
20.4.9 & 10 Building operator isolates FCV A.
When directed to CRD FCV use remote function RD12 to OPEN to Booth unisolate FCV B. Use remote function RD11 to CLOSE to isolate FCV Operator A.
END OF EVENT Notes Proceed to the next event at direction of the lead examiner.
Page 16 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 6 Event
Description:
LIS-72C and LIS-72D fails downscale.
Time Position Applicants Action or Behavior Booth When directed by the Lead Examiner, Insert Trigger 7 (RD26C Operator and D. NBI-LIS-72C and D)
Respond to alarms:
9-3-1/B-1, ADS AUX RELAYS ENERGIZED 2.1 IF initiation signal is not valid, THEN perform following:
2.1.1 Place ADS A INHIBIT switch to INHIB.
2.1.2 Place ADS B INHIBIT switch to INHIB.
2.1.3 Enter Procedure 2.4CSCS.
9-3-2/A-5, RX LOW WATER LEVEL -42 2.1 If alarm is not valid, then enter Procedure 2.4CSCS to secure HPCI and RCIC as dictated by plant conditions.
9-3-2/B-5, RX LOW WATER LEVEL -113 BOP 2.1 If alarm not valid, then perform following:
2.1.1 Enter Procedure 2.4PC.
2.1.2 Enter Procedure 2.4CSCS.
2.1.3 Step is N/A.
9-4-1/A-1, RCIC LOGIC ACTUATED 2.1 If initiation not valid, perform following:
2.1.1 Press and hold TURBINE TRIP button until throttle valve closed.
2.1.2 Leave RCIC-MO-131 open, so turbine trip will not reset.
2.1.3 Enter Procedure 2.4CSCS.
Enter Abnormal Procedure 2.4CSCS. Assign actions to BOP.
CRS Direct ADS A and B switches taken to INHIBIT.
Place ADS A INHIBIT switch to INHIB.
BOP Place ADS B INHIBIT switch to INHIB.
Page 17 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 6 Event
Description:
LIS-72C and LIS-72D fails downscale.
Time Position Applicants Action or Behavior Update crew ADS has been placed in Inhibit.
ROLE PLAY: If directed to go to local instrument racks, report Booth NBI-LIS-72C and 72D are both down scale. NBI-LIS-72A and B Operator are reading normal.
Review TS LCO 3.5.3 Condition A for RCIC and determine Condition B applies due to HPCI being inoperable.
Be in MODE 3 in 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and reduce reactor steam dome pressure 150 psig within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />.
Review TS LCO 3.3.5.1-1 for Function 3a (HPCI low level initiation)
Note half of HPCI initiation logic is tripped.
TS Table 3.3.5.1-1 Functions 1a for CS initiation logic on low RPV CRS level, and 2a for RHR initiation logic on low RPV level.
TS Table 3.3.5.1-1 Functions 4a and 5a and LCO 3.3.5.1 F.1 and G.1 and declare ADS valves inoperable within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.
TS LCO 3.3.5.2-1 for Function 1(RCIC low level actuation)-Note logic is tripped.
LCO 3.5.1 G for two or more ADS valve inoperable, and H for HPCI and one or more ADS valves inoperable and enter LCO 3.0.3 immediately.
END OF EVENT Notes Proceed to the next event at direction of the lead examiner.
Page 18 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 7 Event
Description:
Instrument Air dryer plugs Time Position Applicants Action or Behavior Booth When directed by the Lead Examiner, Insert Trigger 2 (IA05, Operator Instrument Air dryer plugging)
Respond to alarm A-4/A-5, CONTROL AIR LOW PRESSURE.
1.1 Verify SACs operating properly.
1.2 Check for excessive air leaks or usage.
BOP 1.3 Enter Procedure 5.2AIR Report Instrument air pressure from IA-PI-606 (Panel A)
Report Service air pressure from SA-PI-611.
Report Service air pressure high and instrument air pressure low.
CRS Enter Abnormal Procedure 5.2AIR. Assign actions to BOP.
Booth ROLE PLAY: If directed to report air filter dP, wait 3 minutes and Operator report the filter dP is rising.
Critical Bypass the plugged instrument air dryers by opening SA-MO-81, prior to reactor scram requirement due to low instrument air Task pressure (< 77psig).
4.3 If air drying/filtering components at fault then perform following:
4.3.1 Open SA-MO-81, SA TO IA CROSSTIE (Panel A) 4.3.2 Place standby dryer and filters in service per Procedure 2.2.59.
4.3.3 If necessary, manually bypass any obstructed BOP component(s).
4.3.4 When dryer and filter flow returned to service, close SA-MO-81.
4.4 Step is N/A.
4.5 Make following announcement twice:
"All personnel using breathing equipment supplied by plant air move to Page 19 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 7 Event
Description:
Instrument Air dryer plugs Time Position Applicants Action or Behavior an area with a clean atmosphere."
4.6 Step is N/A.
4.7 Stop any work involving large air system loads.
4.8 At INSTRUMENT AIR PRESSURE 85 psig:
4.8.1 Ensure Steps 4.3 through 4.7 actions are completed.
4.8.2 Place BF-C-1A, EMERG BSTR FAN, as follows:
4.8.2.1 Place switch for BF-C-1A, EMERG BSTR FAN, to RUN, then allow it to spring-return to AUTO (VBD-R).
4.8.2.2 After BF-C-1A, has started, then verify following
- a. EF-C-1B, TOILET EXH FAN, stops.
- b. HV-270AV, CONTROL ROOM HVAC INLET VALVE, closes.
- c. HV-271AV, CONTROL ROOM HVAC EMERGENCY BYPASS SYSTEM INLET VALVE, opens.
- d. HV-272AV, CONTROL ROOM PANTRY EXHAUST FAN ISOLATION VALVE, closes.
4.8.3 Step is N/A.
4.8.4 Stop all radwaste processing.
4.8.5 Step is N/A.
4.8.6 Bypass FPC F/Ds per Procedure 2.2.32.
4.8.7 In Diesel Generator Rooms:
4.8.7.1 Close IA-687 4.8.7.2 Slowly open DGSA-37 4.8.7.3 Close IA-683 4.8.7.4 Slowly open DGSA-38.
4.8.8 Step is N/A.
4.8.9 Review Attachment 1 for significant loads and effects due to plant air loss.
4.9 At INSTRUMENT AIR PRESSURE 77 psig:
Page 20 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 7 Event
Description:
Instrument Air dryer plugs Time Position Applicants Action or Behavior 4.9.1 Concurrently enter Procedure 2.1.5.
4.9.2 Transfer level control to HPCI/RCIC per Procedure 2.2.33.1 or 2.2.67.1.
4.9.3 Close all MSIVs.
4.9.4 Close MO-MO-74, INBD ISOL VLV.
4.9.5 CLOSE ms-mo-77, OUTBD ISOL VLV.
4.9.6 Concurrently perform Attachment 2.
If dryer/filter bypass not opened, direct reactor scrammed, MSIVs CRS closed and RPV level control transferred to RCIC.
NOTE to Chief Examiner: If crew scrams the reactor at this point, direct booth operator to continue with Event 8 and insert Trigger 4.
NOTE to Examiners: If the reactor is scrammed at this point go to Event 9 for post scram actions. This is Path 2 as discussed at the beginning of the scenario guide in the D1 summary section in red text.
Contact building operator and direct other air dryer/filter placed in BOP service.
If directed to place other air dryer/filter in service, wait 5 minutes Booth delete malfunction IA05, and report the other dryer/filter is in Operator service.
END OF EVENT Notes Proceed to the next event at direction of the lead examiner.
Page 21 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 8 Event
Description:
Reactor Recirculation Pump High Vibration (ARP 9-4-3/C-3)
Recirculation Pump Seal Failure (ARP 9-4-3/A-3)
Time Position Applicants Action or Behavior Booth When directed by lead examiner, insert Trigger 4 (RR10a, RR11a, RR50a RR31a, RR Pump A #1 and #2 seal failure, RR Motor A high Operator vibration, and RR Loop A suction rupture)
Respond to alarm 9-4-3/C-3, RECIRC A PUMP MOTOR HI VIBRATION 1.1 Monitor RR A pump/motor vibration using PMIS Points.
ATC 1.2 NA 1.3 Notify System Engineer of valid alarms.
ROLE PLAY: If sent to the 976' elevation to observe RR Pump A motor Booth vibrations, wait 4 minutes and report the MOTOR LOWER vibration is Operator indicating 10 mils (Alert) and the UPPER MOTOR velocity is 6 mils (Alert).
NOTE to Examiners: ATC may trip RR pump A before SRO directs it if a drywell pressure increase is noted with the seal trouble annunciator.
ATC Respond to alarm 9-4-3/A-3, RECIRC PUMP A SEAL TROUBLE Operator responds to annunciator, announces alarm RR Pump A seal ATC failures, and refers to alarm procedure.
CRS Directs ATC to trip RR pump A and entry into 2.4RR.
BOP Report drywell pressure rise.
Enter Abnormal Procedure 2.4 PC and direct BOP to vent the drywell to CRS maintain drywell pressure within band.
Vent the drywell per the Hard Card:
1.5 Ensure PC-AD-R-1B is open and PC-AD-R-1A is closed.
BOP 1.6 Start preferred SGT fan.
Page 22 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 8 Event
Description:
Reactor Recirculation Pump High Vibration (ARP 9-4-3/C-3)
Recirculation Pump Seal Failure (ARP 9-4-3/A-3)
Time Position Applicants Action or Behavior 1.7 Open SGT-DPCV-546A(B) valve.
NOTE - Steps 1.4 and 1.5 may be performed in any order or concurrently, depending on plant conditions.
1.8 Vent Torus by performing following:
1.8.1 Ensure PC-MO-1308 is closed.
1.8.2 Open PC-AO-245AV.
1.8.3 Open PC-MO-305MV.
1.8.4 WHEN Torus pressure ~ 0.25 psig, THEN close PC-MO-305MV.
1.8.5 Close PC-AO-245AV.
1.8.6 Place switch for PC-AO-245AV to AUTO.
1.9 Vent Drywell by performing following:
1.9.1 Open PC-AO-246AV.
1.9.2 While ensuring Torus pressure does not exceed Drywell pressure by > 0.1 psig, open PC-MO-306.
1.9.3 WHEN Drywell pressure ~ 0.25 psig, THEN close PC-MO-306.
1.9.4 Close PC-AO-246AV.
1.9.5 Place switch for PC-AO-246AV to AUTO.
1.10 Place switch for running SGT fan to AUTO.
1.11 Place switch for SGT-DPCV-546A(B) to AUTO.
ATC Trips RR pump A and enters 2.4RR.
Page 23 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 8 Event
Description:
Reactor Recirculation Pump High Vibration (ARP 9-4-3/C-3)
Recirculation Pump Seal Failure (ARP 9-4-3/A-3)
Time Position Applicants Action or Behavior 4.3 Checks power-to-flow map for operating in the exclusion zone 4.4 Secure OWC Injection System, place OWC INJECTION SYS ENABLE SWITCH to SHUTDOWN (PANEL A).
4.5 Perform applicable Attachment 2, RECIRCULATION PUMP SEAL FAILURE Attachment 2
- 1. If both seals have failed and affected RR pump requires prompt isolation, perform following:
1.1 Ensure DRIVE MOTOR BKR 1CN, 1CS (1DN, 1DS) is tripped.
1.2 Close RR-MO-43A(B), PUMP SUCTION VLV.
1.3 Close RR-MO-53A(B), PUMP DISCHARGE VLV.
1.4 Close CRD-50 (CRD-51), REACTOR RECIRCULATION PUMP A (B) SEAL FLOW REGULATOR 46A (B) INLET (R-903-SE).
1.5 Following steps may be performed concurrently:
1.5.1 Enter Single Loop Operation section of Procedure 2.2.68.1.
1.5.2 Ensure RRMG Set A(B) GEN FIELD BKR open.
1.5.3 Ensure operating RRMG is transferred to Startup Transformer per Procedure 2.2.18.
If both seals have degraded and time allows, shut down and isolate affected pump per Procedure 2.2.68.1.
NOTE to Examiners: Venting the drywell with Standby Gas Treatment can keep up with RR seal leakage until the RR suction piping failure leakage exceeds venting capabilities.
END OF EVENT Notes Page 24 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 8 Event
Description:
Reactor Recirculation Pump High Vibration (ARP 9-4-3/C-3)
Recirculation Pump Seal Failure (ARP 9-4-3/A-3)
Time Position Applicants Action or Behavior The next event is already active.
Page 25 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 9 Event
Description:
LOCA - RR Suction Line Break (EOP 1A, 3A)
Time Position Applicants Action or Behavior NOTE to Examiners: malfunction RR31A, 5%, RR Suction line leak is already ramping in (Active).
BOP Report reversal in drywell pressure.
Accept scram action of 1.5 psig drywell pressure from Abnormal Procedure ATC 2.4PC.
CRS Direct ATC to SCRAM at 1.5 psig drywell pressure.
CRS Enters EOP 1A and 3A on high drywell pressure and directs actions.
SCRAM or verify SCRAM per 2.1.5
1.2 Place REACTOR MODE switch to REFUEL.
ATC 1.3 IF reactor power > 3%, THEN perform following:
1.3.1 Place REACTOR MODE switch to SHUTDOWN.
1.3.2 Initiate ARI.
NOTE to Examiners: The SDIV drain valve (AO-33) on the south volume fails to isolate when required post scram. This was originally annotated as a critical task but was determined by the exam team to NOT be critical for this scenario because it is masked by the SB LOCA events (Recirc pump seal LOCA and SB Pipe LOCA).
Perform Attachment 2 Reactor Power Control of 2.1.5 as follows:
1 REACTOR POWER CONTROL ATC 1.1 Ensure REACTOR MODE switch is in SHUTDOWN.
Page 26 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 9 Event
Description:
LOCA - RR Suction Line Break (EOP 1A, 3A)
Time Position Applicants Action or Behavior 1.2 Verify all SDV vent and drain valves are closed.
Report failure of drain isolation valve AO-33 to close. (Panel 9-5)
Places SDV Isolation switch on Panel 9-5 to ISOL.
Reports SDV drain valve closed.
NOTE - RR pump(s) will be tripped if on Normal Transformer or if ARI/RPT has automatically initiated.
1.3 Ensure operating RR pumps have run back to 22% speed.
NOTE - Steps 1.4 and 1.5 may be performed concurrently.
1.4 Verify all control rods are fully inserted.
1.4.1 If necessary, insert control rods as directed by CRS.
1.5 Observe nuclear instrumentation and perform following:
1.5.1 Insert SRM detectors.
1.5.2 Insert IRM detectors.
1.5.3 Change APRM recorders to IRMs.
1.5.4 Range IRMs on scale.
Check reactor power is lowering.
Stabilize RPV pressure below 1050 psig using main turbine BPVs and RPV BOP Pressure Control Systems (TABLE 1) as necessary (RC/L-5)
If ADS timer has initiated THEN inhibit ADS Page 27 of 35
Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 9 Event
Description:
LOCA - RR Suction Line Break (EOP 1A, 3A)
Time Position Applicants Action or Behavior Note to Examiners: Either Loop of RHR may be used for Torus Spray and Drywell Spray.
Initiate Drywell Spray prior to Drywell pressure exceeding the Pressure Critical Suppression Pressure (PSP) graph (Only if still on Path 1 for the Task scenario guide).
CRS Enters EOP 3A and directs Containment Sprays initiated.
(PC/P-1 )
Monitor and control PC pressure below 1.84 psig using containment pressure control systems, EOP 5.8.17 (PC/P-2)
BEFORE torus pressure reaches 10 psig, Spray Torus (PC/P-3)
When Torus pressure exceeds 10 PSIG Spray the Drywell
- 2. Containment Sprays (RHR Hard Card) 2.1 IF required, with CRS permission, THEN place CONTMT COOLING 2/3 CORE VALVE CONTROL PERMISSIVE switch to MANUAL OVERRD.
BOP 2.2 IF required, THEN place CONTMT COOLING VLV CONTROL PERMISSIVE switch to MANUAL.
2.3 Ensure RHR-MO-39A(B) open.
2.4 IF reactor pressure 300 psig and injection not desired, THEN close RHR-MO-27A(B), OUTBD INJECTION VLV.
2.5 Ensure RHR PUMP(s) running.
NOTE - RHR pump operation at minimum flow should be limited to
< 15 minutes or pump damage may result.
2.6 Throttle RHR-MO-38A(B) to maintain desired containment pressure.
2.7 Throttle RHR-MO-66A(B) to obtain desired cooling rate.
2.8 IF Drywell Spray required, THEN perform following:
2.8.1 Open RHR-MO-31A(B).
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Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 9 Event
Description:
LOCA - RR Suction Line Break (EOP 1A, 3A)
Time Position Applicants Action or Behavior 2.8.2 Throttle RHR-MO-26A(B) to maintain desired containment pressure.
2.9 IF PCIS Group 6 lights lit on Panel 9-5, THEN ensure one of following open:
2.9.1 REC-MO-711; or 2.9.2 REC-MO-714.
2.10 Place RHR SW System in service:
2.10.1 Start SWBP(s).
2.10.2 Adjust SW-MO-89A(B) to maintain flow between 2500 and 4000 gpm.
2.11 Throttle RHR-MO-66A(B) to maintain desired cooling rate.
Maintain Drywell pressure between +2 & +10 psig.
Ensure each of following initiated:
- ECCS initiations
- DGs (RC/L-3)
ATC Restore and maintain RPV water level between +3 in. and +54 in. with one or more Injection Systems (TABLE 3)
(RC/L-4)
When RPV water level cannot be restored and maintained between +3 in.
and +54 in.
(RC/L-6)
Restore and maintain RPV water level above -150 in. using Injection Systems (TABLE 3) and, if necessary, Alternate Injection Subsystems (TABLE 4)
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Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 9 Event
Description:
LOCA - RR Suction Line Break (EOP 1A, 3A)
Time Position Applicants Action or Behavior Report RCIC trip when containment pressure rises to the RCIC high exhaust BOP trip setting.
END OF EVENT Notes Proceed to the next event.
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Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 10 Event
Description:
RHR Drywell Spray Valves fail to auto close on low DW pressure.
Time Position Applicants Action or Behavior NOTE to Examiners: During performance of Drywell Sprays using procedure 2.2.69.3 during execution of EOP 3A if the operator fails to recognize DW Spray valves have lost power the valves will fail to close resulting in negative DW pressure and challenging PC Integrity.
Secure RHR Loop A drywell sprays or lower Loop B sprays prior to Critical Drywell Pressure reaching negative pressure (Only if still on Path 1 Task for the scenario guide).
Booth As drywell pressure is lowered to ~5 psig, insert Trigger 5 to de-Operator energize MO26A and MO-31A open.
Recognizes that RHR-MO-26A, DRYWELL SPRAY OUTBD THROTTLE VLV and RHR-MO-31A, DRYWELL SPRAY INBD VLV will not close while spraying the Drywell.
BOP If RHR Loop B also being used to spray the drywell, isolate drywell sprays in that loop to maintain drywell pressure above 2 psig.
OR Secure all RHR Loop A pumps.
Report status to the CRS Acknowledges and directs the drywell pressure maintained positive.
CRS END OF EVENT Notes Proceed to the next event.
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Appendix D Required Operator Actions Form ES-D-2 Op-Test No.: 1 Scenario No.: 2 Event No.: 11 Event
Description:
Emergency Depressurize and core re-flood.
Time Position Applicants Action or Behavior NOTE to Examiners: As the LOCA propagates, the RFP startup valves are unable to keep up with the leak causing RPV level to lower to below TAF.
When RPV level cannot be maintained above TAF, and low pressure Critical ECCS systems are available, emergency depressurize and raise Task water level above TAF within 15 minutes (Only if on Path 2 for the scenario guide).
When RPV water level cannot be maintained above TAF, exit EOP 1A CRS level leg and enter EOP 2A and direct Emergency Depressurization.
BOP Opens 6 SRVs as directed by the CRS.
Uses RHR and Core Spray to inject into the RPV to restore and maintain ATC RPV level in band prescribed by the CRS.
END OF EVENT Notes When RPV level is recovered and controlled, stop the scenario as directed by the lead examiner.
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Appendix D Required Operator Actions Form ES-D-2 Simulator Setup Initialize the simulator in Protected IC 232.
Triggers and Malfunctions E4 - RR10A, RR #1 seal failure, 100% severity with a 5:00 ramp time.
RR11A, RR #2 seal failure, 100% severity with a 15:00 ramp time.
RR31A, RR Suction Line Break, 3.5% severity with a 10:00 ramp time. 6 minute TD.
RR50A RR Pump A High Vibration, 50% severity.
E5 - RH23a and RH19a Loop A DW Spray Valves fail open.
E6 - RD04a 0% with 15 second ramp.
E7 - RR26 C and D.
E9- DMF RD01a (Allows SDIV drain valve to close)
E13- None Trgset 9 "zdirpssws10[1]==1" (SDIV control switch to ISOL)
Trgset 13 "zdihpcisws20[4]==1" (HPCI Aux Oil Pump control switch to START)
RD01a, 100% (Open) South SDV Drain Valve Fails to Close (Active)
HP 12, HPCI oil discharge line rupture (15 second time delay) (Active)
IA05 100% with a 5 minute ramp.
Remotes E5- rh19a, RHR-MO-26a control power failure rh23a, RHR-MO-31a control power failure E10- SW04b RHRSW Pump B trip.
E11- SW04d RHRSW Pump D trip.
Overrides None Panel Set-up
- Ensure HPCI Test displayed on SSSP.
- Ensure Tendamatic plaque labeled B-A-C
- Ensure PMIS IDTs are blank.
- Place the Shutdown EOL Rod Sequence Book on Panel 9-5.
- Ensure Recirculation Controllers are selected to P Procedures Needed 6.HPCI.103 - Completed up to step 4.13, then steps 4.14 and 4.15 are complete.
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Appendix D Required Operator Actions Form ES-D-2 Tags Hung None Parameter Monitoring:
Monitor RPV Power, Pressure and Level, Drywell Pressure Page 34 of 35
Appendix D Required Operator Actions Form ES-D-2 Turnover Sheet:
Plant Status: 100% power, EOL Risk: Green Activities in Progress:
Prejob brief for SPC and HPCI surveillance was briefed yesterday.
Procedure 2.2.69.3 is complete through Step 8.17.
RHR Heat Exchanger B was vented at the end of the previous shift in preparation for performing HPCI surveillance test.
6.HPCI.103 - procedure completed up to Step 4.13; Steps 4.14 and 4.15 are N/A.
LCOs in effect: None Equipment out of service: None Activities for the Shift:
- Place B Loop of RHR in Suppression Pool Cooling.
- Lower power to 95% for HPCI Test
- Perform 6.HPCI.103 Test
- Return to 100% power following HPCI test Page 35 of 35