ML060940685
| ML060940685 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 03/31/2005 |
| From: | Pacific Gas & Electric Co |
| To: | NRC Region 4 |
| References | |
| 50-275/05-301, 50-323/05-301 | |
| Download: ML060940685 (4) | |
Text
A ppendix D Scenario Outline Form ES-D-1 Facility: _DCPP Units 1 & 2___ Scenario No.: __NRCSIM-01__
Op-Test No.: _01_
Examiners: ____________________________ Operators:
Initial Conditions:
100% power, equilibrium Xe, 590 ppm, MOL (IC-510). DG 1-1 is tagged out for repairs on starting circuit, OOS for 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />, due back in 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> (Drill File 34)(Place yellow tags on CB). PRA YELLOW. PDP in service (Drill File 90). Diluting 20 gal/hr. STP I-1C was completed one hour ago, due in seven. Last run two days ago.
Turnover:
Swap from PDP to CCP 1-2.
Event No.
Malf.
No.
Event Type*
Event Description 1
Drill File 6020 N, ALL Secure PDP and place CCP 1-2 in service 2
Xmt pzr40 I, ALL LT 459 Failure low 3
N, ALL Restore Letdown 4
Xmt rcs138 I, RO Loop 4 TC failure 5
R, ALL CALL - EPOS requests ramp to 900 MW within 30 min. Start ramp in 10 min. (Call 12 minutes before ASW pump trip) 6 Pmp asw1 Pmp asw2 C, BOP Loss of ASW pumps 7
Cnv mfw5 C, RO SG 1-2 FRV failure 8
Mal mss6c M, ALL SG 1-2 safety valve sticks open 9
Mal rcs4c M, ALL SGTR from SG 1-2 10 Pmp rhr1/2 C, ALL Failure of RHR Pumps 1-1 and 1-2 to AUTO start (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor
- 2 drl_file 6020
A ppendix D Scenario Outline Form ES-D-1 Facility: _DCPP Units 1 & 2___ Scenario No.: __NRCSIM-02__
Op-Test No.: _01_
Examiners: ____________________________ Operators:
Initial Conditions:
100% power. MOL. 590 ppm boron. Diluting 20 gal/hr. Last dilution 15 minutes ago.
Turnover:
Maintain current plant conditions.
Event No.
Malf.
No.
Event Type*
Event Description 1
Pmp ccw1 ccw2 C, BOP Trip of CCW Pp 1-1 and failure of CCW Pp 1-3 to auto start 2
R, ALL CALL - EPOS: Path 15 emergency. Ramp to 900 MW within 30 min.
Start ramp in next 10 min.
3 Cnh cvc4 C, ALL Auto RMUW system failure 4
Xmt mfw46 I, ALL Failure of LT-549, SG 1-4 level transmitter 5
Xmt cvc4 I, RO Failure of FCV-128 auto control 6
Mal syd3 C, ALL Grid frequency variation (drops to 58 HZ) 7 Mal gen4 C, ALL Full load rejection 8
Mal pzr1 M, ALL PZR steam space break 9
Ovr vx4i222o C, ALL Trip of 52-HG-15 (vital bus startup supply) 10 Mal deg1a C, ALL Trip of DG1-1 11 Mal ppl1a I, ALL Failure of Phase A Train A to actuate 12 M, ALL SBLOCA Response per E-1 and E-1.2 (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor
- 4 drl_file 6040; drl_file 15 - secure vacuum, SJAE, Gland Seal; drl_file 48 - swap Batt 13 to Batt Chrg 131
A ppendix D Scenario Outline Form ES-D-1 Facility: _DCPP Units 1 & 2___ Scenario No.: __NRCSIM-03__
Op-Test No.: _01_
Examiners: ____________________________ Operators:
Initial Conditions:
100% power(IC-510). MOL with boron at 590 ppm. Diluting 20 gal/hr. Last dilution was 15 minutes ago. It was reported 5 minutes ago that DG 1-1 had an air leak from the turbocharger receiver relief valve. The receiver has been isolated and the compressor secured. Technical Specifications have NOT been reviewed for this event.
Turnover:
Swap Condensate Booster Pumps per procedure for clearance on set 1-1.
Event No.
Malf.
No.
Event Type*
Event Description 1
N, BOP Swap Condensate Booster Pump sets 2
Xmt cvc20 I, ALL VCT Level Indicator LI-114 Fail High 3
Cnh pzr4 I, RO Failed Auto control of PZR Pressure Controller HC-455 4
Mal cws3a cws3b asw2 C, ALL Increased screen and condenser DP (Call from Intake Watch of sudden increase in swells breaking over breakwater; kelp buildup.) (Call as Steve David reporting Environmental report rapidly building storm.
Direct crew to reduce to 50% within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.)
5 R, ALL Ramp unit to 50%
6 Xmt mss62 I, BOP SG 1-1 Pressure Transmitter Fail High (10% Controller Fail Open in Auto) 7 Mal sei1 M, ALL Earthquake 8
Mal rcs3e M, ALL LBLOCA 9
Loa sis1 C, ALL Loss of RWST (SI-1) 10 Pmp asw2 C, BOP Failure of ASW pump 1-2 to Auto Start (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor
- 6 drl_file 6060
A ppendix D Scenario Outline Form ES-D-1 Facility: _DCPP Units 1 & 2___ Scenario No.: __NRCSIM-04__
Op-Test No.: _01_
Examiners: ____________________________ Operators:
Initial Conditions:
100% power. MOL (IC-510). 590 ppm Boron. AFW Pp 1-2 OOS for repair last 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. RTS in 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> (Drill File 43). Diluting 20 gal/hr. Last dilution was 15 minutes ago.
Turnover:
Swap CFCUs from 1-1 to 1-2 for clearance.
Event No.
Malf.
No.
Event Type*
Event Description 1
N, BOP Swap CFCU from 1-1 to 1-2.
2 R, ALL CALL - EPOS: Path 15 emergency. Commence ramp in 10 minutes to 900MW in following 30 minutes.
3 pmp cvc2 C, ALL Trip of running CCP and restoring letdown 4
Xmt tur2 C, ALL PT-505 hangs up at 100%
5 Xmt pzr27 I, RO PZR pressure controller bias fails to +100# during ramp 6
Ovr vb3079a C, BOP TCV-23 Failure 7
Mal sei1 M, ALL Earthquake 8
Mal rcs1 M, ALL LBLOCA (50% DBA loop 2) 9 Mal ppl1b C, BOP Failure of phase A Train B to actuate 10 Mal syd1 M, ALL Loss of Offsite power 11 Transfer to Cold Leg Recirc (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor
- 7 drl_file 6070