ML032450486
| ML032450486 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 03/07/2003 |
| From: | Ernstes M Operator Licensing and Human Performance Branch |
| To: | Scalice J Tennessee Valley Authority |
| Shared Package | |
| ML032461208 | List: |
| References | |
| 50-327/03-301, 50-328/03-301 | |
| Download: ML032450486 (11) | |
See also: IR 05000327/2003301
Text
Final Submittal
SEQUOYAH RETAKE EXAM
50-327 & 50-328/2003-301
FEBRUARY 27,2003
Appendix D Scenario Outline Form ES-D-1
Facility: Sequovah Scenario No.: 1 Op-Test No.: 1
Examiners: Operators:
Initial Conditions: Plant is at 94% power following a trip after a refuelina outaue. 10 gpd leakage in
- 3 SIG.
Turnover: Maintain current plant power level and place excess letdown in service. A Severe
Thunderstorm Warninq is in effect for Hamilton and Rhea counties for the next 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />. There is
aeneral increased securitv due to validated threats in the US.
Event Malf. Event Event
- No.
- No.
- -
Type*
Set up simulator to IC- 9.
Description
Preinsert
I I
I B Containment spray Pump oos
I
Preinsert B MDAFW Pump 00s
Preinsert RHOlA C ARHR Pump Fails
Preinsert RP16K C Phase Afails to actuate
605A
1 - N Place Excess Letdown in Service
(RO)
2 RX18 I Tavg Channel fails High
100% (RO)
(AN
I I I
- (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor, (P)RA, (L)ow Power
Appendix D Operator Actions Form ES-D-2
Op-Test No.:- Scenario No.: 1 Event No.: 1 Page -1- of -1-
Event Description: -Removing Letdown from ServicelPlace Excess Letdown in Service
-
-
--
Time Position
SO-62.1 Steps
Applicant's Actions or Behavior
-
OATC OBTAIN permission from Unit 1 SRO to remove letdown from service
-
OATC 1 IF excess letdown is to be Dut in service, THEN PERFORM 1-SO-62-6, AND RETURN
-
- OATC I ENSURE following letdown orifice valves CLOSED: v-FCV-62-721,ll-FCV-62-73], 11-FCV-62-741
- OATC
~
I CLOSE following letdown isolation valves: I-FCV-62-69,1-FCV-62-70
-
SO-62-6 Steps
-
OATC ENSURE LI-FCV.62-93] is in MANUAL AND OPERATE as needed to regulate charging flow to keep pressurizer
level on program
-
- us NOTIFY RADCON that Excess Letdown is being PLACED in SERVICE
- CRO 1 ENSURE H.FCV-70-143] CCS water to the excess letdown heat exchanger is OPEN
CRO ENSURE 11-FCV-70-851 Excess Letdown Heat Exchanger CCS flow control valve is OPEN
-
ENSURE [I.Fl-70-841 is indicating greater than 230 gpm
- CRO
-
- OATC 1 OPEN [I-FCV-62-54] Cold Leg Loop #3 Excess Letdown isolation valve
- ~~
OATC 1 OPEN [I-FCV-62-551Excess Letdown containment isolation valve
OATC OPEN [l-FCV.62-56] slowly to increase excess letdown flow to desired amount, not to exceed 240'F heat
- exchanger outlet temperature, as indicated on 1-TI-62-58
- us NOTIFY RADCON that Excess Letdown has been placed in service
-
-
NUREG-1021,Revision 8, Supplement 1 1
Appendix D . __ Operator Actions Form ES-D-2
1) Op-Test No.:- Scenario No.: 1 Event No.: 2 Page -1- of -1-
I Event Description: -Tavg Channel Fails High
Time Position Applicant's Actions or Behavior
AOP-C.01 Steps
us EVALUATE the following Tech Specs for applicability
us EVALUATE EPIP-1, Emergency Plan Classification Matrix
CREW DIAGNOSEthe failure: Continuous control bank movement, Section 2.2
I1 I OATC I CHECK rod control: ENSURE rod control in MAN, CHECK rod motion STOPPED (YES)
OATC CHECK for instrumentation malfunction
OATC CHECK nuclear instrumentation OPERABLE
I ~
I CRO 1 CHECK turbine impulse pressure channels OPERABLE
OATC CHECK T-ref OPERABLE, USING TR-68-26
CHECK Auct T-avg OPERABLE, USING TR-68-26
OATC
PLACE Steam Dumps in Steam Pressure Mode
CRO
OATC IF pressurizer level does not control in automatic, THEN CONTROL pressurizer level manually
1~
' 1 OATC 1 DETERMINE ProgramT-avg for current reactor power USING TI-28 Figure A.9
us NOTIFY MIG of T-avg failure
OATC/CRO RESTORE T-avg. to T-Ref: POSITION control rods, ADJUST turbine load, ADJUST RCS boron
concentration
OATC CHECK for steam line or feedwater line breakneak: CHECK for rising reactor power with dropping T-avg (NO)
OATC CHECK for inadvertent boration flow: CHECK evidence of boration flow INDICATED (NO)
I I OATC I CHECKfor inadvertent dilution flow: CHECK evidence of dilution flow INDICATED (NO)
OATC CHECK for rod control system integrity, VERIFY T-avg. and T-Ref matched, PLACE control rods in AUTO
(NO)
us NOTIFY Duty Operations Manager of the situation
us NOTIFY IM to determine and correct cause of rod control circuit failure
NUREG-1021, Revision 8, Supplement 1 2
Appendix D Operator Actions Form ES-D-2
Op-Test No.:- Scenario No.: 1 Event No.: 3 Page -1- of 2 -
Event Description: -" E MFP Trips
Position Applicant's Actions or Behavior
AR-M3B (N) Steps
CRO IF unit > 80% load, THEN, VERIFY all auxiliaty feedwater pumps start
us IF unit > 80% load and one MFP trips, THEN, GO TO AOP-S.01, Loss of N o m a / Feedwater
I AOP-S.OI Steps
CRO 1 VERIFY turbine runback to less than 73% load (-880 Mwe)
~
OATC VERIFY control rods inserting automatically to match T-avg and T-ref
CRO ENSURE running main feedwater pump FULLY LOADED, speed controller output at maximum
[M-3, SIC-46-20A or SIC-46-206].
CRO ENSURE the following for Auxiliary Feedwater Pumps
~
CRO I MDAFW Pumps RUNNING [M-4]:
CRO TDAFW Pump RUNNiNG [M-3].
CRO TDAFW Pump LCVs OPEN lM-31.
PRO MDAFW Pumo recirculation valves CLOSED lM-41: FCV-3-400, FCV-3-401
CRO I ENSURE affected Main Feedwater Pump Turbine Condenser isolation valves CLOSED, Condenser 8
CRO
_____
I ENSURE the steam generator blowdown valves CLOSED [M-41:
CRO RESTORE steam generator levels to program level
us EVALUATE placing additional condensate pumps IN SERVICE as necessary (NIA)
CRO ENSURE unit STABILIZED
us DISPATCH an operator to investigate cause of main feedwater pump trip, places 1-HS46-27A & 30A in PTL
CRO CLOSE Turbine Driven Auxiliary Feedwater Pump LCVs as required [M-3]:
CRO RESET Steam Dump Load Rejection Signal: (May decide not to do this step, since in Stm. Press. Mode)
PLACE HS-1-103A and 1036, Steam Dump Control, in OFF.
CRO
PLACE HS-1-103D, Steam Dump Control, in RESET and VERIFY spring return to TAVG.
CRO
CRO VERIFY C-7, LOSS OF LOAD iNTERLOCK alarm, DARK [M-4A, 5E]
NUREG-1021, Revision 8, Supplement 1 3
Appendix D Operator Actions Form ES-D-2
Op-Test No.:- Scenario No.: 1 EventNo.: 3 Page -2- of -2-
Event Description : " B MFP Trips
I
I I
w
NUREG-1021, Revision 8, Supplement 1 4
Appendix D Operator Actions Form ES-D-2
Op-Test No.:- Scenario No.: 1 Event No.: 4 Page -1- of -5-
Event Description :-Large Break LOCA Loop 1
Position Applicant's Actions or Behavior
E-0 Actions
OATC VERIFY reactor TRIPPED
CRO VERIFY turbine TRIPPED
~ ~ ~
CRO VERIFY shutdown boards ENERGIZED
CROlOATC DETERMINE if SI actuated (Yes)
CRO VERIFY CCS pumps RUNNING
CRO CHECK ERCW system operation, VERIFY at least four ERCW pumps RUNNING, VERIFY DIG ERCW supply
valves OPEN
CROlOATC VERIFY ECCS pumps RUNNING
OATC VERIFY CCP flow through CCPIT
OATC CHECK RCS pressure less than 1500 psig (YES)
OATC VERIFY ESF systems ALIGNED, Phase A ACTUATED, Containment Ventilation IsolationACTUATED, Status
monitor panels. Train A status Dane16K. Train B status Dane16L
OATC MONITOR containment spray NOT required (NO)
OATC ENSURE containment spray INITIATED
OATC Containment spray pumps RUNNING
OATC Containment spray header isolation valves FCV-72-39 and FCV-72-2OPEN
OATC Containment spray recirculationvalves to RWST FCV-72-34 and FCV-72-13 CLOSED
OATC Containment spray header flow greater than 4750 gpm per train
OATC Panel 6E LIT
OATC ENSURE Phase B valves CLOSED, Panel 6K PHASE B GREEN, Panel 6L PHASE B GREEN
OATC STOP RCPs
OATC MONITOR containment air return fans
OATC WHEN 10 minutes have elapsed, THEN ENSURE containment air return fans are running
NUREG-1021, Revision 8, Supplement 1 5
~~ ~ ~~ ~
Appendix D Operator Actions Form ES-D-2
Op-Test No.:- Scenario No.: 1 Event No.: 4 Page -2- of 5 -
-
Time Position Applicant's Actions or Behavior
-
__
OATC CHECK if main steam lines should be isolated (YES), VERIFY MSlVs and MSlV bypass valves CLOSED
- ~
CRO VERIFY MFW Isolation
-
CRO VERIFY AFW pumps RUNNING, MDAFW, TDAFW
-
- CRO I CHECK AFW valve alignment
- CRO 1 DETERMINE if secondary heat sink available (Yes)
OATC MONITOR RCS temperatures
-
.__
OATC/CRO
1 IF temperature less than 547OF and dropping, THEN PERFORM the following; ENSURE steam dumps and
atmosDheric reliefs CLOSED (NO)
CRo
US/CRO
II IF cooldown continues, THEN, PERFORM the following; CONTROL total feed flow USING EA-3-8, Manual
Control of AFW Flow, MAINTAIN total feed flow greater than 440 gpm UNTIL narrow range level greater
than 10% 125% A D 4 in at least one SIG
IF cooldown continues, THEN, CLOSE MSlVs and MSIV bypass valves
CRO ~
I DISPATCH personnelto perform EA-0-1, Equipment Checks Following ESF Actuation
OATC CHECK pressurizer PORVs, safeties, and spray valves
EXAMINER NOTE
- Depending on crew speed, the crew may go back to step 7c when RCS pressure goes
below 1500 Dsia
OATC MONITOR RCP trip criteria; At least one CCP OR SI pump RUNNING AND RCS pressure less than 1250
psig (NO*)
A phase B signal should be generated during this portion of the procedure
OATC STOP RCPs
CRO I CHECK if SIG secondary pressure baundaries are INTACT: All SIG pressures controlled or rising, All SIG
Dressures greater than 140 wig (YES)
CRO 1 CHECK if S/Gtubes are INTACT (YES)
OATC CHECK if RCS is INTACT: Containment pressure NORMAL (NO)
U l M I N E R NOTE
1 SJA Should Identify a Transition to FR-P. 1 is required
NUREG-1021,Revision 8, Supplement 1 6
Appendix D Operator Actions Form ES-D-2
Scenario No.: 1 Event No.: 4 Page -3- of -5-
escription :. -Large Break LOCA Loop 1
Position Applicant's Actions or Behavior
FR-P.l Steps
OATC MONITOR RWST level greater than 27%
CRO MONITOR CST level greater than 10%.
OATC CHECK RCS pressure greater than 180 psig (NO)
OATC IF at least one RHR pump flow greater than 1500gpm, THEN RETURN TO procedureand step in effect (E-I)
EXAMNERNOTE
STA Should /dentify a Transition to FR-Z. 1 is required (May transition to ES-1.3)
FR-Z.l Steps
OATC MONITOR RWST level greater than 27%.
OATC VERIFY containmentventilation dampers CLOSED, Panel 6K CNTMT VENT GREEN, Panel 6L CNTMT VENT
GREEN
OATC VERIFY Phase A valves CLOSED, Panel 6K PHASE A GREEN, Panel 6L PHASE A GREEN (Action should be
taken to close valves that failed to actuate)
OATC VERIFY Phase B valves CLOSED, Panel 6K PHASE B GREEN, Panel 6L PHASE B GREEN
_ _ _ ~ ~
OATC VERIFY containmentspray operation
OATC STOP RCPs
OATC CHECK procedure applicabilityfor containmentspray operation, RHR sump recirculation capability AVAILABLE
OATC VERIFY containment spray pumps RUNNING
OATC MONITOR RWST level greater than 8%.
~ ~~~
OATC VERIFY containmentspray suction ALIGNED to RWST
OATC VERIFY containment sDrav discharge alionment
OATC VERIFY EGTS operation, VERIFY EGTS fans RUNNING, VERIFY EGTS operation NORMAL
OATC MONITOR containment air return fans, WHEN 10 minutes have elapsed, THEN VERIFY containment air return fans
RUNNING
OATC VERIFY MSlVs and MSlV bypass valves CLOSED
OATC DETERMINE if any SIG Intact, CHECK at least one SIG pressure, Controlled or rising, and Greater than 140 psig
CRO DETERMINEif any SIG Faulted (NO)
NUREG-1021, Revision 8, Supplement 1 7
~
Appendix D Operator Actions Farm ES-D-2
Op-Test NO.:- Scenario No.: 1 EventNo.: 4 Page -4- of -5-
Event Description :-Large Break LOCA Loop 1
Time I Position Applicant's Actions or Behavior
I FR-Z.l steps continued
1 OATC MONITOR if RHR spray should be placed in service (NO)
1 OATC
~
MONITOR if containment spray should be stopped
1 OATC CHECK anv containment sorav pump RUNNING
.+ I OATC
OATC
I OATC
CHECK containment pressure less than 2.0 psid
RESET Containment Spray
STOP containment spray pumps and PLACE in A-AUTO
CLOSE containment spray discharge valves FCV-72-2 and FCV-72-39.
MONITOR if containment vacuum control should be returned to normal, CHECK containment pressure less than
1
+ OATC VERIFY containment vacuum relief isolation valves OPEN, ECV-30-46 OPEN, FCV-30-47 OPEN, FCV-30-48
OPEN
E-I Steps
I OATC MONITOR RCP triD criteria: At least one CCP OR SI pump RUNNING AND RCS pressure less than 1250 psig
1 CRO CHECK if SIG secondary pressure boundaries are INTACT: All SIG pressures controlled or rising, All SIG
pressures areater than 140 Dsia (YES)
I CRO MAINTAIN Intact SIG narrow range levels: > 25%, Between 25 - 50%
-1 CRO VERIFY secondary radiation NORMAL: CHECK the following radiation monitors, including available trends prior tc
isolation: Main steamline NORMAL, Condenser exhaust NORMAL, SIG blowdown recorder RR-90-120, pen # I
and pen #2 NORMAL, Post-AccidentArea Radiation Monitor recorder RR-90-2W points 3 (blue), 4 (violet),
5 (black). and 6 (brown) NORMAL. IM-31 (back of M-30)I
NOTIFY chem lab to take SIG activity samples every 60 minutes
~~ ~~~~~ ~~
NOTIFY RADCON to survey main steamlines and SIG blowdown
MONITOR pressurizer PORVs and block valves: Power to block valves AVAILABLE, Pressurizer PORVs
CLOSED, At least one block valve OPEN
ENSURE Reactor Building auxiliary floor and equipment drain sump pumps (pocket sump pumps) STOPPED
NUREG-1021,Revision 8, Supplement 1 8
Appendix D Operator Actions Form ES-D-2
Op-Test No.:- Scenario No.: 1 Event No.: 1 Page -5- of -5-
Event Description :-Large Break LOCA Loop 1
Time Position Applicant's Actions or Behavior
E 4 Steps
I I OATC I MONITOR SI terminationcriteria I
OATC RCS subcooling based on core exit T/Cs greater than 40°F
CRO Secondary heat sink: Narrow range level in at least one Intact S/G greater than 10% 125% ADV]. Or Total feed
flow to Intact S/Gs greater than 440 gpm
OATC RCS pressure stable or rising (NO)
OATC MONITOR if containment spray should be stopped
OATC CHECK any containmentspray pump running.
I ~
I OATC I CHECK containmentpressureless than 2.0 psid. I
OATC RESET containment spray.
OATC STOP containment spray pumps and PLACE in A-AUTO.
OATC CLOSE containment spray discharge valves FCV-72-2 and FCV-72-39.
n 1 OATC 1 MONITOR If containmentvacuum control should be returnedto normal N
OATC CHECK containment pressure less than 1.5 psid.
OATC VERIFY containmentvacuum relief isolation valves OPEN: FCV-30-46, FCV-3047, FCV-3048
I I I TERMINATE THE EXERCISEAT TRANSITION TO ES-1.3 I
NUREG-1021. Revision 8, Supplement 1 9