JPM SRO-A5 — Classify an Event and Complete ICMF
Admin | SRO | G2.4.41 (4.6)
Location: Classroom (Administrative)
Time-Critical: Yes (15 minutes)
Alternate Path: No
Estimated Time: 10 minutes
Initial Conditions:
- Salem 2 was manually tripped and Safety Injection Auto actuated due to a RCS leak inside containment
- The crew is implementing 2-EOP-TRIP-1
- RCS pressure < 60 psig
- RCS Subcooling is 0 degrees F
- All ECCS pumps are running
- Containment pressure is 35 psi and 21 Containment Spray pump failed to start. Attempts to start 21 CS pump from the control room are unsuccessful
- 21 CFCU is C/T for cooler leak and 22 and 23 CFCUs failed to start in LOW SPEED. Attempts to start 22 and 23 CFCUs from the control room are unsuccessful
- Meteorological data is as follows: Wind Direction: 180 degrees, Wind Speed: 5 mph
- 2R41D, Plant Vent Release Rate, radiation monitor is NOT indicating elevated readings
Initiating Cue:
- You are the Unit 2 Control Room Supervisor (CRS)
- CLASSIFY the event AND COMPLETE the ICMF IAW EP-SA-111-101 and appropriate EAL category flowcharts
- THIS IS A TIME CRITICAL JPM
Time-Critical: Yes (15 minutes)
Alternate Path: No
Estimated Time: 10 minutes
Initial Conditions:
- Salem 2 was manually tripped and Safety Injection Auto actuated due to a RCS leak inside containment
- The crew is implementing 2-EOP-TRIP-1
- RCS pressure < 60 psig
- RCS Subcooling is 0 degrees F
- All ECCS pumps are running
- Containment pressure is 35 psi and 21 Containment Spray pump failed to start. Attempts to start 21 CS pump from the control room are unsuccessful
- 21 CFCU is C/T for cooler leak and 22 and 23 CFCUs failed to start in LOW SPEED. Attempts to start 22 and 23 CFCUs from the control room are unsuccessful
- Meteorological data is as follows: Wind Direction: 180 degrees, Wind Speed: 5 mph
- 2R41D, Plant Vent Release Rate, radiation monitor is NOT indicating elevated readings
Initiating Cue:
- You are the Unit 2 Control Room Supervisor (CRS)
- CLASSIFY the event AND COMPLETE the ICMF IAW EP-SA-111-101 and appropriate EAL category flowcharts
- THIS IS A TIME CRITICAL JPM
Task Standard:
1. Classifies the event as Site Area Emergency (SAE) based on RB2.L and CB8.P.
2. Properly completes ICMF for the classified event.
1. Classifies the event as Site Area Emergency (SAE) based on RB2.L and CB8.P.
2. Properly completes ICMF for the classified event.
▶ Show Critical Steps & Key Actions
| Step | Critical Element | Standard |
|---|---|---|
| 1 | Review initial conditions and gather materials (EP-SA-111-101, Salem 2 ECG books) | Operator reviews initial conditions, acknowledges time-critical nature of JPM |
| 2 * | Classify the event using the Fission Product Barrier Table | Classifies event as Site Area Emergency (SAE) based on: - RB2.L (5 pts) — RCS barrier loss: Subcooling <= 0 F as a result of RCS leakage - CB8.P (2 pts) — Containment barrier potential loss: Containment pressure > 15 psig AND one containment spray train in service AND < 3 CFCUs running in low speed - Total: 7 points = Site Area Emergency |
| 3 * | Select correct ICMF Attachment (Attachment 3 — SAE) | Requests Attachment 3 (SAE) ICMF form EP-SA-111-F3. Attachments 2 (Alert) and 4 (GE) are incorrect. |
| 4 * | Accurately and completely fill out the ICMF | Completes ICMF for Site Area Emergency including: plant identification, declaration time, event description (RCS leak with loss of containment cooling), release status (no release — 2R41D not elevated), meteorological data (180 degrees / 5 mph), protective action recommendations |
Key Decision Point:
Step 2 is the discriminating step. The applicant must correctly assess each fission product barrier using the ECG flowcharts:
RCS Barrier (RB2.L = 5 pts): RCS subcooling is 0 F with RCS pressure < 60 psig — this indicates a loss of the RCS barrier due to the leak inside containment. Subcooling <= 0 degrees as a result of RCS leakage = RCS barrier LOST.
Containment Barrier (CB8.P = 2 pts): Containment pressure is 35 psi (well above 15 psig threshold). One CS pump is running (22 CS), but 21 CS failed to start. Only 24 CFCU is running in low speed (21 is C/T, 22 and 23 failed to start). This meets CB8.P: containment pressure > 15 psig AND either (a) one CS train in service AND < 3 CFCUs running in low speed, OR (b) no CS trains. This is a POTENTIAL loss (2 pts).
Total = 7 points → Site Area Emergency (SAE). A common trap is classifying as General Emergency (requires containment barrier LOST, not potentially lost) or as Alert (insufficient points). The 2R41D showing no elevated readings confirms no release is in progress — this is important for the ICMF but does NOT affect the classification.
Step 2 is the discriminating step. The applicant must correctly assess each fission product barrier using the ECG flowcharts:
RCS Barrier (RB2.L = 5 pts): RCS subcooling is 0 F with RCS pressure < 60 psig — this indicates a loss of the RCS barrier due to the leak inside containment. Subcooling <= 0 degrees as a result of RCS leakage = RCS barrier LOST.
Containment Barrier (CB8.P = 2 pts): Containment pressure is 35 psi (well above 15 psig threshold). One CS pump is running (22 CS), but 21 CS failed to start. Only 24 CFCU is running in low speed (21 is C/T, 22 and 23 failed to start). This meets CB8.P: containment pressure > 15 psig AND either (a) one CS train in service AND < 3 CFCUs running in low speed, OR (b) no CS trains. This is a POTENTIAL loss (2 pts).
Total = 7 points → Site Area Emergency (SAE). A common trap is classifying as General Emergency (requires containment barrier LOST, not potentially lost) or as Alert (insufficient points). The 2R41D showing no elevated readings confirms no release is in progress — this is important for the ICMF but does NOT affect the classification.
Ref: EP-SA-111-101 (Rev. 23), EP-SA-111-121 (Rev. 00), EP-SA-111-F3 (Rev. 03) | Task: 1240020502 | K/A: G2.4.41 — Knowledge of the emergency action level thresholds and classifications | Source: New | View JPM PDF
Connections
- Related systems: RCS, ECCS, Containment Spray, CFCUs
- Related procedures: EP-SA-111-101 — Emergency Classification and ICMF, EP-SA-111 — Emergency Classification and Protective Action
- Related exam: 2018 NRC Operating Exam