ML022630061
| ML022630061 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 09/16/2002 |
| From: | - No Known Affiliation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| FOIA/PA-2002-0371 | |
| Download: ML022630061 (12) | |
Text
Scenario Outline 9
Form ES-D-1 Facility:
VCSUMMER Scenario No.:
1 Examiners:..J..G. HOPPER__
._._L. MELLEN_
SSYKES_:.
Op-Test No.: _99-1 Operators:
Objectives:
Initial Conditions: PLANT OPERATING AT 90% POWER. 'B' TRAIN EQUIPMENT IN SERVICE. PCV-445A HAS BEEN ISOLATED DUE EXTERNAL LEAKAGE. 'C' ACCUM PRESS HI/LO ANNUNCIATOR JUST ALARMED.
HEAVY THUNDERSTORMS IN THE AREA.
Turnover: PCV-4448 HAS MINOR SEAT LEAKAGE.
'A' TRAIN COMPONENT COOLING PUMP OOS SERVICE FOR MAINTENANCE (CLEARING TAGS). 30 GPD LEAKAGE ON 'A S/G.
Event Malf. No.
Event Event No.
Type*
Description 1
N-RO RAISE 'C' ACCUMULATOR PRESSURE 2
PRS-001A I-RO PZR PRESSURE CONTROL CHANNEL PT-444 FAILS HI (SEVERITY=2500, RAMP=-15)
PRS-004B PCV-444B STICKS OPEN (SEVERITY=50%, RAMP-5. DELAY=5, TRIGGER-JMLPRSIA)
I-BOP 3
MSS-009E
'C' STEAMLINE FLOW XMITTER FT-494 FAILS LO (SEVERITY=O, RAMP=10) 4 CCW-007B C-8OP LOSS OF OPERATING COMPONEIT COOLING WATER TRAIN 51---
N-RO REALIGN LETDOWN TO DEMINERALIZERS 6
CVC-004A C-RO RCP 'A' #1 SEAL FAILURE (SEVERITY =7.5, RAMP=120) 7 R-ALL SRO DIRECTS POWER REDUCTION TO <38% @ 3%/MINUTE 8
CVC-004A M-ALL RCP 'A' #1 SEAL FAILURE (SEVERITY 100, RAMP=30)
RCS-006A RCP SEAL LOCA (SEVERITY=300, RAMP=180, DELAY=60)
LOA-EPS-138
'B' TRAIN EQUIPMENT FAILS TO AUTO SI. MANUALLY ACTUATE 'B' TRAIN ECCS EQUIPMENT (SELECT=OPEN, TRIGGER=JPPLSI(1))
PMP-CS004S
'A' CHARGING PUMP SHEARED SHAFT MSS-008B FAIL BANK 1 STEAM DUMP VALVE OPEN (SEVERITY=100, RAMP=IO, DELAY=5, TRIGGER--JPPLSI(1))
I_
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Scenario Outline 0
Form ES-D-1
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- P (R)eactivity, (I)nstrument, kL,)ompornent,
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- (N)ormal,
Appendix D Operator Actions 1W Form ES-D-2 Op-Test No.: 99-1 Scenario No.:
1 Event No.:
1 Page 1
of 1
Event
Description:
Raise 'C' Safety Injection Accumulator Pressure
[Time Position Applicants Actions or Behavior RO Ensure the Accumulator Nitrogen Vent, HCV-936, is closed.
Open Nitrogen Supply, PVT-8880.
Open Nitrogen Supply to 'C' Accumulator, PVT-8875C.
Monitor Accumulator 'C' Pressure Indication.
When Accumulator Pressure is between 600 PSIG and 656 PSIG, close Nitrogen Supply to 'C' Accumulator, PVT-8875C.
Place Control Switch for PVT-8880 to CLOSE/AUTO to close PVT 8880.
A A
Appendix D 1W Operator Actions Form ES-D-2 Op-Test No.: 99-1 Scenario No.:
1 Event No.:
2 Page 1
of 1 Event
Description:
Pressurizer Pressure Control Channel PT-444 Fails High Pressurizer PORV, PCV-444B, Sticks Open
[-Time Position Applicants Actions or Behavior RO Operator verifies failed Control Channel
"* PI-444 indicates HI
"* PZR CNTRL PRESS HI Annunciator
"* PZR PRESS HI/LO Annunciator
"* PZR PRESS HI Annunciator Checks position of Pressurizer PORV's and places PCV-444B control switch to CLOSE.
uts Valve MVG-8000B, Block Valve for PCV-444B.
Compare Control Channel Indications to Protection Channel PI-455, 456, and 457. This may have been done in Step 1.
Close the Pressuorzer Spray Valves PCV-444C and PCV-444D.
Control the PZR PRESS Master Control in Manual.
Operate Pressurizer Heaters and Spray Valves in Manual to control RCS pressure between 2220 PSIG and 2250 PSIG.
Verify PI-445, CNTRL CHAN PRESS PSIG, Indication is Normal.
Ensure Rod CNTRL BANK SEL Switch is in AUTO.
Maintain RCS Pressure between 2220 PSIG and 2250 PSIG.
_ I I1 I
4 I ________
Appendix D IRW Operator Actions Form ES-D-2 Op-Test No.: 99-1 Scenario No.:
I Event No.:
3 Page 1
of 1 Event
Description:
'C' Steamline Flow Transmitter FT-494 Fails Low
[ Time Position Applicants Actions or Behavior 14I BOP Operator recognizes indications for failed FT-494 "zo 0 FI-494 indicates LOW 0 SG C FWF > STF Mismatch Annunciator Takes Manual Control bf FCV-498, 'C' Feed Control Valve.
Operator adjusts FCV-498 so Feedflow > Steamflow on FI-495.
Operator selects operable Steam Flow Channel FY495A.
Operator selects matching Feed Flow Channel FY496A.
Operator controls FCV-498 to restore 'C' Steam Generator level to
=61%.
Operator verifies Feedwater Speed Control is operating properly.
Operator verifies all Steam Generator water levels are normal.
Operator places FCV-498 Control in AUTO.
I4 4
I 4
4 I
4 J.
4 J. _______
+/-
A
- b, Aft Appendix D 1W Operator Actions W
Form ES-D-2 Op-Test No.: 99-1 Scenario No.:
1 Event No.:
4 Page 1
of 2 Event
Description:
Loss of Operating Component Cooling Water Train
[Time Position Applicants Actions or Behavior
,,t.50 BOP Operator recognizes indications for a trip of'B' CCW Pump
", CCP B/C Trip Fail Annunciator
"* 'B' CCW Pump Amps reading 0
"* CCW Loop B PP DISCH PRESS LO Annunciator Within one minute the operator should 7'
& Start '(F' CCW Pump on 'A' Train
- Start 'A' Charging Pump a Stop 'B' Charging Pump Operator should establish 'A' CCW Train and the Active Train O Start MVB-9503A, CC to RHR HX A, stroking in the Closed direction
- When flow on FI-7034 is between 5000 GPM and 4000 GPM rapidly Open MVB-9687A/9525A Open MVB-9524A/9526A Close MVB-9524B/9526B Close MVB-9687B/9525B Open MVB-9503B
- Have Auxiliary Building operator verify sample flow to RML2A is greater than one GPM
- Ensure the following Valves have not closed on High Flow MVG-9625 MVG-9626 MVG-9583 MVT-9593A/B/C
Appendix D Operator Actions Form ES-D-2 Op-Test No.: 99-1 Scenario No.:
1 Event No.:
4 Page 2
of 2 Event
Description:
Loss of Operating Component Cooling Water Train Time I Position T Applicants Actions or Behavior
- If 'B' Charging Pump Switch is not placed in PTL, the pump will restart on a Safety Injection signal and must be secured.
Onerator Actions w
Form E-D-2 AppendixD Op-Test No.: 99-1 Scenario No.:
1 Event No.:
5 Page 1
of 1 Event
Description:
Realign Letdown to Demineralizers Time Position Applicants Actions or Behavior RO Operator verifies conditions are met to restore Letdown Demin Flow
"* Annunciator XCP-613 (1-2), DEMIN FLO DIVERT TEMP HI, clear
"* Letdown temperature on TI-143 less than 135°F Operator places TCV-143, LTDN TO VCT OR DEMIN, in DEMIN/AUTO.
Derator Actions v
Form ES-D-2
Appendix D w
Operator Actions Form ES-D-2 Op-Test No.: 99-1 Scenario No.:
1 Event No.:
6 Page 1
of I
Event
Description:
Reactor Coolant Pump 'A' Number One Seal Failure
-im Position Applicants Actions or Behavior RO Operator recognizes indications of abnormal leakoff from 'A' RCP #1
- Seal a RCP A #1 SL LKOFF FLO HI/LO Annunciator Operator breaks out ARP XCP-617 (2-1) and monitors Seal Leakoff Flow on FR-154B.
Operator ensures Seal Injection Flow to 'A' RCP is greater than 8 GPM on FI-130A.
Operator ensures CCW Flow to 'A' RCP Thermal Barrier is between 35 GPM and 60 GPM on FM-7138.
Operator monitors lower Seal Water Bearing temperature on T0417A.
Operator monitors #f1 Seal Leakoff temperature on T0181A.
Operator determines that #1 Seal Leakoff Flow is greater than 6 GPM by monitoring FR-154A, RCP SL LKOFF HI RANGE.
Commence plant power reduction to allow securing 'A' RCP within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
After the subsequent Safety Injection, the operator should secure 'A' RCP.
Within three to five minutes after 'A' RCP is secured, close RCP 'A' Seal Leakoff PVT-8141A.
Appendix D 1W Operator Actions 1-' C Th -
w V orm I-iJ-L Op-Test No.: 99-1 Scenario No.:
1 Event No.:
7 Page 1
of 1
Event
Description:
Power Reduction to < 38% (@ 3%/Min.
STime Position Applicants Actions or Behavior SRO CRS directs power reduction at 3%/min.
BOP Reduces Turbine Load
- Deenergizes LOAD LMT circuit
- Energizes DEC LOAD RATE circuit
- Selects 3%/min. on LOAD RATE LMT - %
- Depress DECREASE pushbutton to reduce LOAD SET to value directed by CRS RO Monitors control rods to ensure TAvE is decreasing with automatic inward rod motion.
RO Opens MVG-8 104 as necessary to minimize TAVE - TREF mismatch.
BOP Secure one MFP per SOP-210 when directed by CRS 0 Open MFP Turbine Drain Valve MOV-1-5 0 Place MFP recirculation in Manual 0 Decrease MFP speed controller output to 0 0 Trip the MFP using the FWP PP TRIP/RESET switch at the MCB 0 Dispatches operator to verify HP & LP Stop Valves have closed 0 Ensures MFP turbine is on turning gear when speed is 0.
BOP Secures one MFBP when directed by CRS.
Onerator Actions I*r Ol1n
-L NL--
Appendix D Operator Actions Form ES-D-2 Op-Test No.: 99-1 Scenario No.:
1 Event No.:
8 Page 1
of 3 Event
Description:
'B' Train ESFLS Failure, 'A' Charging Pump Broken Gear Box Bank 1 Steam Dump Fails Open Time Position Applicants Actions or Behavior RO Recognizes increase in 'A' RCP #1 Seal Failure/Seal LOCA 0 RCP Seal Bearing temperature increasing
- PZR level decreasing
- Charging flow increasing iROBOP Trips the reactor when directed by CRS or when S OP-10 1 RCP trip T O/B OP criteria are met.
R
(' O R BtOP SI's when directed by CRS or after automatic SI.
SRO Secures 'A' RCP after the reactor trip.
S,90/
Performs Immediate Actions of EOP-1.0
- Verifies reactor trip BOP Performs Immediate Actions of EOP-1.0 Verifies turbine trip 0 Verifies ESF buses energized BOP Recognizes failure of 'B' Train ESFLS to sequence and informs RO/CRS 0
Recognizes 'A' Charging Pump low amps and informs CRS. Calls AB operator to investigate.
'0 Closes PVT-814aA, 3-5 minutes after securing 'A' RCP.
RO Directs TB operator to ra0k up 'C' Charging Pump on 'A' Train and rack down 'A' Charging Pump.
Appendix D 19W Operator Actions Form ES-D-2 Op-Test No.: 99-1 Scenario No.:
1 Event No.:
8 Page 2
of 3 Event
Description:
'B' Train ESFLS Failure, 'A' Charging Pump Broken Gear Box Bank 1 Steam Dump Fails Open
[ Time 1, 4Positin Applicants Actions or Behavior OP Crew should NOT secure 'B' & 'C' RCPs when RCS pressure decreases < 1400 psig until SI flow is established from 'C' Charging Pump.
RO During i, iffal check after Immediate Actions:
.7*
Recognizes 'B' RHR failed to start and manually starts it
- Recognizes one 'B' Train RBCU failed to start and manually
/
starts it 7 *Recognizes 'B' SWBP did not start and manually starts it.
BOP Performs Attachment 3 of EOP-1.0 to verify proper operation of all ESF equipment (If not already performed by the NROATC).
- Recognizes 'B' RHR failed to start and manually starts it.
- Recognizes one 'B' Train RBCU did not start and manually starts it
- Recognizes 'B' SWBP did not start and manually starts it.
BOP/RO Recognizes failure of one Bank 1 Steam Dump and attempts to manually close with the steam dump controller BOP/RO Dispatches an operator to locally close or isolate the failed open steam dump.
SRO,/
Transitions to EOP-2.0, Loss of Reactor on Secondary Coolant.
/ !?
Resets SI, Phase A Isolation, Phase B Isolation.
BOP Resets ESF Loading Sequencers.
Ash Auk Appendix D Operator Actions Form ES-D-2 O
Op-Test No.: 99-1 Scenario No.:
1 Event No.:
8 Page 3
. of 3 Event
Description:
'B' Train ESFLS Failure, 'A' Charging Pump Broken Gear Box Bank 1 Steam Dump Fails Open
[ Time Position I
Applicants Actions or Behavior RO Establishes Instrument Air to RB 0 Opens PVA-2659
- Opens PVT-2660 0 Directs TB AO to reset 'A' IA Compressor RO Secures RHR Pumps when directed by CRS.
SRO Transitions to EOP-2.1, Post-LOCA Cooldown and Depressurization.
BOP Initiates RCS Cooldown BOP 0 Places both STM DUMP INTERLOCK switches to BYP INTLK RO 0 Places both STMLN SI TRAIN switches to BLOCK BOP 0 Places Steam Dumps in STM PRESS mode BOP 0 Adjusts Steam Dump controller to establish cooldown rate <
100°F/hr.