ML22167A044

2017 Pal ES-D-1s Scenarios 1, 2, 3

ML22167A044
Person / Time
Site:	Palisades
Issue date:	10/12/2016
From:	Randy Baker NRC/RGN-III/DRS/OLB
To:	Entergy Nuclear Operations
Baker R
Shared Package
ML17037C879	List: ML22167A028 ML22167A035 ML22167A038 ML22167A039 ML22167A040 ML22167A044
References
Download: ML22167A044 (3)

Text

Appendix D Scenario Outline Form ES-D-1

Facility: PALISADES NUCLEAR PLANT Scenario No.: _____1 ________ Op-Test No.: __1______

Examiners: __________________________ Operators: _____________________________

Initial Conditions: The Unit is 74% power, middle of core life. P-54A, Containment Spray pump is tagged OOS for seal cooler inspection.

Turnover: Shift orders are to alternate operating CCW pumps and continue the power escalation to full power.

Event Malf. Event Event No. No. Type* Description 1 N/A ATC (N) Alternate operating CCW pumps SRO (N) 2 N/A ATC (R) Commence power escalation SRO (R) 3 ATC (C) Primary water totalizer failure to stop at programmed value SRO (C) (during ramp, manual action required to secure dilution) 4 BOP (I) West ESS room ventilation rad monitor failure SRO (I,T) 5 ATC (C) Loss of Preferred AC Bus Y-10 (inverter failure)

SRO (C,T) 6 BOP (C) Turbine Governor Valve GV3 and GV4 fail shut SRO (C) 7 BOP (C) Failure of turbine to auto trip 8 ALL (M) ESDE (Main Steamline Rupture) inside containment (ramped in at time of trip) 9 ATC (C) Left Channel Containment Spray fails to auto or manually SRO (C) actuate (requires manual alignment and start of P-54B)

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

Appendix D Scenario Outline Form ES-D-1

Facility: PALISADES NUCLEAR PLANT Scenario No.: _____2 ________ Op-Test No.: __1______

Examiners: __________________________ Operators: _____________________________

Initial Conditions:

The Unit is at 100% RTP in the middle of core life. P -66B HPSI Pump is tagged out of service for an impeller replacement.

Turnover: Shift orders are to cycle control valves per Section 7.9.1 of SOP-3.

Event Malf. Event Event No. No. Type* Description 1 ATC (N) Cycle Control Valves CV-3055, CV-3223, and CV-3212 per SRO (N) SOP-3 2 BOP (C) Main Generator Voltage Regulator fails with concurrent SRO (C) fluctuation in grid voltage 3 BOP (I) S/G A level transmitter LT-701 output fails low SRO (I,T) 4 ATC (I) Hot Leg #1 RTD fails low SRO (I,T) 5 BOP (C) Cooling Tower Pump P-39B trips and Rapid Downpower (due ATC (R) to degrading vacuum)

SRO (C,R) 6 ATC (C) P-50D lower seal failure. 4 minutes later, the middle seal fails, SRO (C,T) requiring the Unit to be taken offline.

7 ALL (M) Small Break LOCA (350 gpm leakage from charging line piping at reactor vessel) 8 ATC (C) Failure of SIAS to automatically or manually actuate (must SRO (C) manually start/align equipment) 9 ATC (C) HPSI Pump P-66A trips on ground O/C when manually started (no HPSI flow available)

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

Appendix D Scenario Outline Form ES-D-1

Facility: PALISADES NUCLEAR PLANT Scenario No.: _____3______ _____ Op-Test No.: __1______

Examiners: __________________________ Operators: _____________________________

Initial Conditions:

The Unit is middle of core life at 45% RTP. P-1B Main Feedwater pump has just been returned to service following repair of an oil leak.

Turnover: P-55A charging pump is OOS for a seal leak. P-8A AF pump is OOS to support a breaker inspection. Shift orders to place the second Heater Drain pump online per SOP-10 and continue power ascension to full power.

Event Malf. Event Event No. No. Type* Description 1 N/A BOP (N) Start second Heater Drain pump per SOP-10 SRO (N) 2 N/A ATC (R) Commence power escalation SRO (R) 3 BOP (C) Loss of A Control Room HVAC Train SRO (C,T) 4 ATC (I) Channel B Pressurizer Pressure controller failure SRO (I,T) 5 ATC (C) Loss of DC Panel ED-11-1 (prevents left train from generating BOP (C) AFAS)

SRO (C,T) 6 ALL (M) LOOP coincident with spurious closure of B MSIV. Security calls and reports and earthquake.

7 BOP (C) When Aux Feedwater is actuated (auto or manual), S/G B SRO (C) Control Valve CV-0736A fails to open, requiring manual operation to feed S/G B with P-8C.

8 BOP (C) 2 B MSSVs stick open (2 minutes after the B MSIV closes).

SRO (C)

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