ML040490436
| ML040490436 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 08/20/2003 |
| From: | Ernstes M NRC/RGN-II |
| To: | Rosalyn Jones Duke Energy Corp |
| Shared Package | |
| ML40510003 | List: |
| References | |
| 50-269/03-302 50-269/03-302 | |
| Download: ML040490436 (9) | |
See also: IR 05000269/2003302
Text
Draft Submittal
(Pink Paper)
OCONEE JUNE 2003 RETAKE
EXAM 5 0 -2 6912 0 0 3 -3 02
OCTOBER 17,2003
CRITICAL TASKS
Scenario i :
4. CT-1, Trip All RCPs
2. CT-3, Isolate Possible RCS Leak Paths
3. CT-10, Establish W Flow and Feed SGs
4. CT-20, WCS Pressure Control To Prevent Exceeding RV P-T Limits And Comp[y
With PTS Guidance
5. CT-27, Implementation of Control Room Habitability Guidance
Spare:
4 . Cb-5, Control HPI
2. CT-10, Estabsish FW Flow and Feed SGs
3. CT-11, Control SG pressure to Maintain RC Temperature Constant.
4. CT-26, Restore Feed To A Dry SG
Appendix D
Scenario Outline
Form ES-D-l
Facility: Qconee
Scenario No.: 1 RO
Op-Test No.: -
Examiners:
Operators: Tracey Roland (SRO-U)
Kevin Cooley (RO)
Initial Conditions:
e 45% Reactor Power, (Snap 281 1
Turnover:
Startup in progress after adding oil to AB1 RCP
e
SASS in MANUAL for I&E troubleshooting
1B MDEFDW Pump 08%
o
After turnover, the crew should start 151 RCP
Event 1
Malf. No.
1 EventType*
No.
I
Event
Description
Oa
Pre-Insert
SASS in manual
Pre- Insert
MSS270
1 B MDEFDW Pump OOS
I
Oc
Pre-Insert
Block All Turbine Trips Except Manual
Od
Re-insert
A RBCU fails to receive ES signal
MP1290
MPS358
-
II not develop adequate
4
1
I C A L L
I BWST ruDture
C OATC SRO
8
I MPS40Q
I M,ALL
I RCS leak to SBLOCA (ramp over 10 minutes)
RCS leak isolated, SCM increases > 0°F
(N)ormal, (R)eactivity, (I)nstrument, (C)ompsnent, (M)ajor
NUREG-1021, Draft Revision 9
Page 1 of 12
Scenario #1 Overview RO
Initial Conditions: Unit 1: 45% power
~ EOL, Unit 2: 180%, Unit 3: 100%
Turnover:
0
0
a
o
Startup in progress after adding oil to 1B1 RCP
SASS in MANUAL for I&E troubleshooting
1 E3 MDEFDW Pump 00s
After turnover, the crew should start I
B1 RCP
1) Stile iB1 RCP: (N, OATC)
a) Reactor power was reduced so oil could be added to the 1 B1 RCP. The oil
addition has been completed and the crew is directed to start the 1BI RCP per
OP/1/A/1103/006.
TIME = 5 minutes
2) 1 B4 WCP AC Oil Lifa pump will not develop adequate discharge pressure: (C,
QATC)
a) Prior to starting the 1B1 RCP, the RCP AC Oil Lift pump will be started. The
OAC should be monitored and the RCP started after the low oil pressure alarm
clears. The low pressure condition will not clear and the AC Oil Lift pump will stop
after three minutes. The operator should follow procedural guidance and use the
BC Oil Lift pump and complete starting the 1 B1 RCP.
TIME = 5 minutes, TOTAL 10 min.
Q-
3) Turbine Header Pressure fails LOW: (I, OATC) q o 3 p
a) The crew should utilize Plant Transient Response to stabilize the plant. The
Turbine master will transfer to manual. The QATC should take the Diamond
Panel and the FDW Masters to manual. FDW, Control Rods, and Turbine Header
pressure should be adjusted to stabilize the plant.
b) The SRO should refer to APi28 (ICs instrument Failures).
TIME = 10 minutes, TOTAL 2Q min.
4) BWST rupture: (6,
ALL) (TS)
a) A crane will damage the BWST resulting in level rapidly decreasing to -24 feet.
b) The SRO should refer to TS 3.5.4 and determine that a unit shutdown is
TIME = 10 minutes, TOTAL 30 min.
required.
Page 1 of 3
Scenario #I
Overview RO
5) Manual unit shutdown: (R, O A K )
a) FDW, Control Rods, and Turbine Header pressure will be controlled to manually
TIME = 10 minutes, TOTAL 40 rnin.
shutdown the unit.
6) RCS NR Pressure bails HIGH: (I, QATC)
a) After the manual unit shutdown, RCS NR Pressure will fail high and the crew
b) The PZR heaters will de-energize and PZR spray (1 RC-1) will open. The PORV
should utilize Plant Transient Response to stabilize the plant.
(1 RC-66) will also open. Actual RCS pressure will decrease and the reactor will trip
on low pressure in about one minute without operator action.
c) The crew should refer to the ARGs and the SRO should direct the crew to close the
P O W or 1 WC-4 (Spray Block) and 1 RC-I (PZR Spray). The PZR heaters should
be cycled as required to control RCS pressure.
d) The %a0 should refer to AP/28 (ICs Instrument Failures).
TIME = 5 minutes, TOTAL 45 min.
7) Main FBW pumps trip and Main Turbine Fails to trip (Lockout EHC Pumps): (6,
OATC)
a) Both Main FDW pumps will trip resulting in a reactor trip. The Main Turbine
should trip but does not. This will result in a reduction in steam pressure in both
SGs until actions are taken to trip the turbine. The will result in WCS overcooling
until the Main Turbine is tripped.
and then perform the RNO step which will stop both EHC pumps. This will cause
the turbine to trip.
b) While performing IMAs, the OATC should diagnose that the turbine did not trip
TIME = 1 minutes, TOTAL 46 min.
8) RCS ieak to SBLQCA (ramp over 10 minutes): (M,
ALL)
a) The RCS leak will require entry into AP/2 (Excessive RCS Leakage). The leak
will increase causing a loss of SCM.
b) RULE 2 (Loss of SCM) will be implemented and the SRO will transfer to the Loss
of Subcooling Margin (LOSCM) tab of the EOP. The SRO will then transfer to
the LOCA Cosldown (%OCA CD) tab of the EOP.
c) EOP Enclosure 5.1 (ES Actuation) will be implemented. The A RBCU will not
receive an ES signal and will not go to LOW speed. The RO should diagnose this
and place the A RBCU in LOW speed.
TIME = 28 rninutes, TOTAL 66 min.
Page 2 of 3
Scenario #I
Overview RO
9) RCS leak isolated, SCM increases > 0°F: (M, ALL)
a) After transfer is made to the LOCA CB tab of the EOP the leak will be isolated.
This will cause SCM to increase
Subsequent Actions. After the transfer to Subsequent Actions is made the
scenario may be stopped.
0°F and a transfer should then be made to
TIME = 10 minutes, TOTAL 76 min.
Page 3 of 3
Form ES-I)-1
Appendix e!
Scenario Outline
-
Facility: Oconee
Scenario No.: SPARE RQ
Bp-Test No.: -
Examiners:
Operators: Tracey Roland (SRO-U)
Kevin Cooley (RO)
Initial Conditions:
0
1 OQ% Reactor POWW, (IC-41)
Turnover:
e
e
AMSAClDSS bypassed for I&E testing
Unit I
PBEFDWP has been out of service for bearing replacement for about
18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br />. Expect it to be returned to service within the next 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.
1A MDEFBWP fails to start
.......
.......
-
......-.......
-
.....-......-....
_
i
I
...--
1..
fN)ormal, (R)eactiviiy. (I)nstrurnen!,
(C)omponent, (M)ajor
NUREG-1021, Draft Revision 9
Page 1 Of 13
Scenario Spare Overview R8
initial Conditions: Unit I:
200% power - EOL, Unit 2: 108%, Unit 3: 100%
Turnover:
e
AMSAC/DSS bypassed for l&E testing
e
Unit 1 TDEFWP has been out of service for bearing replacement for about 16
hours. Expect it to be returned to service within the next 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.
1) Pressurize the LDST with H*: (N, OATC)
Statalarm will actuate indicating that the LBST H2 pressure is low. Crew should reier
to the ARG and the LDST Pressure vs Level curve. The crew should then add H
to the LDST.
TIME = 18 minutes
2) 1H-1 fails OPEN: (C, QATC) (TS)
During the H2 addition to the LEIST, 2 1-1-1 (LDST Supply) will Bail OPEN recpuising the
OATC to direct the primary NE0 to close the isolation valve to stop the H addition.
isolation by the NE0 will be delayed and BOTH trains of HPl must be declared
inoperable due to operation outside of permissible Operating Region on the LLDST
Pressure vs bevel curve.
TIME = 5 minutes, TOTAL 15 rnin
3) That fails HIGH: (Is QATC)
a) The crew should diagnose the failure and stabilize the plant by using the Plant
b) The OATC should place both FDW Masters and the Diamond Panel to manual to
c) This failure will not be repaired and the ICs will remain in manual.
d) The SRO should refer to AP/28 (ICs Instrument Failures).
TIME = 5 minutes, TOTAL 20 rnin
Transient Response process.
mitigate the transient and stabilize the plant.
4) I A CC Pump trips: (6,
QATC)
a) The crew should refer to ARG and to AP/020 (Loss of Component Cooling). The
bj The crew should initiate investigation and repair of 1A CC pump and 1 B CC auto
TIME = 5 minutes, TOTAL 2% min.
OATC should manually start the standby CC pump.
start failure.
5) IHP-5 Fails closed: {C, OATC)
t.
R O
a) Recognize that 1 HP-5 closed due to high letdown temperature, and refer to the
b) When the crew recognizes that 1 HP-5 has failed closed, the SRO should refer to
c) An operator should be dispatched to manually open 1 HP-5.
ARG for stat alarm 1 SA-2/C-2, Letdown Temperature High.
AP/032, Loss of Letdown.
pabl-JM d y *
TIME = 10 minutes. TOTAL 35 min.
/
Page I
of 2
Scenario Spare Overview RO
6) I D 1 Heater Brain Pump oil leak: (6,
All)
a) The basement NEQ will notify the control room that the 4 D l HDP has a severe
oil leak. Crew should refer to OP/1//1106/002D (Shutdown of the 1 D1 HDP).
The SWO should direct the crew to reduce CTP to 89% and secure the 1 D I
HBP.
TIME = 10 minutes, TOTAL 45 min.
7) Manual reactor power decrease: (R, QATC)
a) The OATC should reduce power with the control rods and the FBW Masters in
TIME = 15 minutes, TOTAL 60 min.
manual.
8) boss of Main Feedwater with 1 FDW-316 Failed CLOSED: (M, ALL)
a) After reactor power has been reduced both main FBW pumps will trip and
1 FBW-316 will fail closed. The SRQ will refer to the EOP. Rule 3 (boss of Main
or Emergency Feedwater) should be implemented after the completion of IMAs
and symptoms check because of the loss of Main FDW. The failure of 1 FDW-316
should be diagnosed and ERN aligned through the startup header. Until flew is
aligned through the B startup header no Main or E M Row will reach the SGs
due to the 1A MDEFDWP not operating and 1 FDW-316 failed closed. If the
alignment through the startup header is delayed HPI Forced cooling must be
initiated.
TIME = 1Q minutes, TOTAL 90 min.
9) Loss of Main and Emergency Feedwater, 15 MDEFDWP trips [CBP Feed): (M,
ALL)
a) After flow has been established through the startup header the 1 B MDEFDWP
will trip. This results in a total loss of Main and Emergency Feedwater. The SRO
should transfer to the Loss of Heat Transfer (LOHT) tab of the EOP. The OAT6
should feed the OTSGs using the CBPs per the guidance in Rule 3 (Loss of Main
or Emergency Feedwater).
TIME = 40 minutes, TOTAL 80 min. 7
1O)TDEFDWP returned (CBP feed recovery)
a) After the plant is stable, the crew will be notified that the TBEFDWP has repaired
and is now available. The SWO will direct the crew to recover from CBP feed by
using the PBEFDWP to feed the SGs per EQP guidance. When the TDEFDWP
is feeding the SGs and the unit is stable the scenario may be stopped.
TIME = 10 minutes. TOTAL 90 min.
Page 2 of 2