ML14274A256

2014 DC Cook Initial License Examination Proposed Scenario D-1 Sheets

ML14274A256
Person / Time
Site:	Cook
Issue date:	08/01/2014
From:	Mcneil D NRC/RGN-III/DRS/OLB
To:	Indiana Michigan Power Co
Shared Package
ML14218A305	List: ML14248A667 ML14248A678 ML14248A700 ML14274A256 ML14274A260
References
Download: ML14274A256 (4)

Text

Appendix D Required Operator Actions Form ES-D-2 Facility: __D C Cook______ Scenario No.: ____1____ Op-Test No.: 2014301 Examiners: ____________________________ Operators: _____________________________

Initial Conditions: 100% power Turnover: A 200 MW power decrease has been requested by the System Dispatcher. Both units are at 100% power.

Even Malf. No. Event Event t No. Type* Description C(ATC) 1 U1_RCR16 Pressurizer Safety Valve Leak (SV45B 2gpm)

TS 2 R Power Reduction 3 N Turbine Power Reduction U1_ECP C(ATC) 4 East CCP fails on overcurrent Stator Short TS 5 U1_RX33B I(BOP) Feedwater flow controller fails U1_QTC302 6 175 over 5 I(ATC) Charging Letdown Header Temperature QTC-302 fails high Minutes U1_RC01A 7 M(ALL) Large break LOCA 60%

U1_ED05E 8 M(ALL) Vital bus T11A Fails (On RX Trip)

(Trg 1)

U1_RP10A 9 U1_RP11A C(ATC) Auto/Manual SI Train A does not occur U1_RP11C

• (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor

Appendix D Scenario Outline Form ES-D-1 Facility: __D C Cook______ Scenario No.: ____3____ Op-Test No.: 2014301 Examiners: ____________________________ Operators: _____________________________

Initial Conditions: ___ EDG CD has been run following mechanical maintenance. The run is complete and the EDG is ready to be shutdown and placed in standby.

Turnover: 1-OHP-4021-032-001CD Attachment 2 is complete to step 4.4.2 and the diesel generator is ready to be shut down. Perform Step 4.4.3 through preparation for Restoring for OPERABILITY. U1 is at 92% power following turbine valve testing.

Event Event Event Malf. No.

No. Type* Description 1 N Secure the CD D/G U1_NI10B I(ATC) 2 200 over 1 Power range detector (NI-42) fails high min TS 3 R Power increase to restore power U1_FW40A 4 C(BOP) Condenser Level Control failure (100%)

100 U1_BLP131 I(ATC) 5 Steam generator #3 BLP131 controlling level channel fails low 0 over 30sec TS U1_MS02C 6 Major Steam line #3 break inside containment 50%

U1_RP01A Reactor trip failure (ATWS), Rods Drop when MG sets de-7 C(ATC)

U1_RP01B energized U1_RP09A 8 C(BOP) Feedwater isolation does not occur in automatic U1_RP09B 9 U1_FW48C C(BOP) TDAFW pump does not start in auto

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Appendix D Scenario Outline Form ES-D-1 Facility: __D C Cook______ Scenario No.: ___4_____ Op-Test No.: 2014301 Examiners: ____________________________ Operators: _____________________________

Initial Conditions: 12% power, main generator has just been paralleled.

Turnover: The unit is at 12% power with the generator has just been paralleled to the grid.

The unit was down powered to fix leak on the weld for FTR-258, FW Disch Header Temperature tap.. The work is complete and the plant is returning to 100% power.

Procedure 1-OHP-4021-001-006, Power Escalation is complete up to step 4.28. Raise Power at 10%/hour to ~29%.

Event Event Event Malf. No.

No. Type* Description 1 N Control Feed Flow In Manual 2 R Raise Power U1_MPC253 3 I(ATC) Turbine impulse pressure instrument (MPC-253) fails HIGH to 740 U1_MPP222 4 C(BOP) MPP 222 SG #2 PORV Pressure Channel 1500 U1_FPC_250 5 A to 1 over 2 I(BOP) Main Feedwater discharge pressure (FPC-250A) fails Low min U1_RC10D Small break LOCA in containment (150 gpm with a 5 min 6 10% over 5 Major Min ramp)

U1_RP10A 7 I(ATC) Auto SI fails U1_RP10B U1_TC02 8 C(BOP) Main turbine fails to trip U1_TC03 U1_RD0435 9 C(ATC) Two rods fail to Drop (H4 & H6)

U1_RD0441 U1_ECP 10 Stator Short C(ATC) East CCP trips on overcurrent 3 minutes after the RXtrip

• (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor Page 1 of 1

Appendix D Scenario Outline Form ES-D-1 Facility: __D C Cook______ Scenario No.: ___5_____ Op-Test No.: 2014301 Examiners: ____________________________ Operators: _____________________________

Initial Conditions: 79% power, Power reduction in progress.

Turnover: Unit is stable at 79% power and continuing a power reduction to take the unit off line. Currently performing Step 4.11.1 of 02-OHP 4021.001.003, Power Reduction. Remove the North Condensate Booster pump from service - was run for engineering data collection.

Event Event Event Malf. No.

No. Type* Description 1 N Remove North Condensate Booster from service U1_QLC451 I(ATC) 2 VCT level instrument (QLC-451) fails low To 0% TS 3 R Power reduction U1_MFC140 I(BOP) 4 Steam flow channel (MFC-140) fails low (Controlling) to 0 TS Pressurizer PORV (NRC-153) leaking (requires isolation) -

U1_RCR20 5% open NOTE: Time compression may be used as the 5 C(ATC) to 5 procedure requires a 15 minute wait time after unisolating each PORV.

U1_RC23D Reactor Trip with S/G #4 tube rupture (600 gpm (60%)

6 to 30 over 10 Major ramp to 30% over 10 minutes - raise to 60% on trip) min U1_MS06D 7 C(BOP) Steam generator safety valve (SV3-4) opens - 80%

to 80%

• (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor Page 1 of 1