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Exams > 2019 JPM Sim-d — Initiate Feed and Bleed using Reactor Head Vents

2019 JPM Sim-d — Initiate Feed and Bleed using Reactor Head Vents

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JPM Sim-d — Initiate Feed and Bleed using Reactor Head Vents IAW EOP-FRHS-1 Sim | RO/SRO | 002 A2.04 (4.3/4.6)
Location: Simulator
Time-Critical: No
Alternate Path: Yes
Estimated Time: 8 minutes

Initial Conditions:
- Unit 2 was manually tripped at 90% power due to elevated main turbine vibrations IAW S2.OP-AB.TL-0001.
- An inadvertent feedwater isolation actuation occurred resulting in the loss of all main feedwater.
- Loss of all AFW flow occurred when all AFW pumps tripped.
- The crew has entered 2-EOP-FRHS-1 due to valid RED Path on Heat Sink CFST based on all SG NR levels < 9% and AFW flow < 22E4 lbm/hr.
- Plant conditions have continued to deteriorate and three (3) steam generator Wide Range levels are now less than 20%.
- MSPI AFW pump failed to start.
- The CRS is implementing the CAS action to Initiate Bleed and Feed.

Initiating Cue:
- You are the Reactor Operator.
- The CRS has directed you to Initiate Bleed and Feed starting at Step 21 IAW 2-EOP-FRHS-1, Response to Loss of Secondary Heat Sink.
- Your evaluator will respond to all alarms not related to your task.
Task Standard:
1. Initiates Safety Injection (SI).
2. Opens one PZR PORV.
3. Opens 2RC40 thru 2RC43 Reactor Head Vents IAW 2-EOP-FRHS-1.
▶ Show Critical Steps & Key Actions
Step Critical Element Standard
21 CAUTION To establish RCS Heat Sink Removal by RCS Bleed and Feed, Steps 24 thru 29 Must Be Performed Quickly and Without Interruption Reads Caution and continues on.
21 STOP ALL RCPs Verifies that all RCPs are already stopped (Step 7 of FRHS-1 stopped RCPs).
22 * INITIATE SI Initiates SI on both trains by inserting key and turning switch clockwise until SI Operate bezel illuminates and SI Reset bezel extinguishes.
23 Are SI Valves in Safeguards Position? YES — checks that all SI valve bezels on 2RP4 are illuminated.
23.1 Is 21 or 22 Charging Pump Running? YES — reports both Charging pumps running as indicated by START bezels illuminated Red.
23.1 (cont'd) Is BIT Flow Established? YES — reports BIT flow established by indication of flow on Charging flowmeter (approximately 235 gpm during validation).
23.2 Is any SI Pump Running? YES — reports both SI pumps running by START PBs illuminated Red.
23.2 (cont'd) Are Valves in Table C Open for At Least One Running SI Pump? YES — verifies all valves OPEN in Table C for both running SI pumps as indicated by OPEN bezels illuminated.
23.2 (cont'd) Are All Charging and SI Pumps Running And Aligned to Deliver Flow? YES — identifies all Charging and SI Pumps are running and valves in safeguards positions.
24 * Open Both PZR PORV Stop Valves Reports both PZR PORV Stop Valves (2PR6 and 2PR7) are OPEN as indicated by OPEN bezels illuminated.
24 (cont'd) * Open Both PZR PORVs Places both PZR PORVs in Manual and depresses OPEN PBs for 2PR1 and 2PR2. 2PR1 opens. 2PR2 will NOT open.
24.1 Are Both PZR PORV Stop Valves Open? YES — reports both 2PR6 and 2PR7 are open as indicated by OPEN bezels illuminated.
24.1 (cont'd) Are Both PZR PORVs Open? NO — reports that 2PR2 will NOT OPEN. (Alternate Path starts here.)
24.1 (cont'd) * OPEN 2RC40 thru 2RC43 Reactor Head Vents At the 2RP2 backpanel, obtains keys, inserts key into each keyswitch one at a time and turns clockwise until OPEN bezel illuminates for all four valves.
Key Decision Point:
At Step 24.1, the applicant must recognize that 2PR2 fails to open and that an adequate bleed path requires at least one PORV and additional bleed capability. With only 2PR1 open, the applicant must use the reactor head vent valves (2RC40 through 2RC43, key-locked on the 2RP2 backpanel) as an alternate bleed path to supplement 2PR1. The evaluator provides the four keys needed to open the head vent valves.
Ref: 2-EOP-FRHS-1 (Rev 36) | Task: N1150290501 | K/A: 002 A2.04 — Ability to determine or interpret RCS bleed path conditions | Source: Bank | View JPM PDF

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