Q95 — FHB BLDG AIR D/P LO / Fuel Handling
T3 G2.1.35 (3.9)
Given:
- Salem Unit 2 is in MODE 6
- Conditions are established per S2.OP-IO.ZZ-0010, Spent Fuel Movements, to support fuel handling operations in the Fuel Handling Building (FHB)
- Movement of irradiated fuel in the FHB is in progress
Then:
- FHB console alarm, BLDG AIR D/P LO, is Alarming
- No operator action has been taken
Based on the above condition and per S2.OP-AR.ZZ-0011, 2CC1 Console Alarm, which of the following completes both statements?
1) What is the NEXT required action?
2) If the BLDG AIR D/P LO alarm is INVALID and will NOT clear, then the local indicator (2) be used to continuously monitor FHB D/P.
- Salem Unit 2 is in MODE 6
- Conditions are established per S2.OP-IO.ZZ-0010, Spent Fuel Movements, to support fuel handling operations in the Fuel Handling Building (FHB)
- Movement of irradiated fuel in the FHB is in progress
Then:
- FHB console alarm, BLDG AIR D/P LO, is Alarming
- No operator action has been taken
Based on the above condition and per S2.OP-AR.ZZ-0011, 2CC1 Console Alarm, which of the following completes both statements?
1) What is the NEXT required action?
2) If the BLDG AIR D/P LO alarm is INVALID and will NOT clear, then the local indicator (2) be used to continuously monitor FHB D/P.
A. (1) Validate the alarm using the local indicator. (2) may NOT
B. (1) Suspend movement of irradiated fuel assemblies. (2) may
C. (1) Suspend movement of irradiated fuel assemblies. (2) may NOT
D. (1) Validate the alarm using the local indicator. (2) may
▶ Show Answer & Explanation
✓ B. Correct. Per S2.OP-AR.ZZ-0011 for BLDG AIR D/P LO, if movement of irradiated fuel assemblies are in progress, then suspend movement of irradiated fuel assemblies in the FHB. The next action is to validate the alarm by checking the local indicator. If the alarm is considered invalid, then compensatory actions are required. Per S2.OP-IO.ZZ-0010, if the BLDG AIR D/P LO is not clear, then the local indicator may be used to continuously monitor FHB D/P.
✗ A. Plausible because validating the console alarm is an action performed. Incorrect in that the first action is to suspend fuel moves in the FHB and then validate the alarm.
✗ C. Plausible because the SRO may believe that without the console alarm operable, then fuel moves inside the FHB cannot continue until the alarm function is restored. Incorrect in that procedures allow the use of the local indicator so long as it's continuously monitored.
✗ D. Plausible because validating the console alarm is an action performed. Incorrect in that the first action is to suspend fuel moves in the FHB and then validate the alarm.
Ref: S2.OP-IO.ZZ-0010 (R38), S2.OP-AR.ZZ-0011 (R64) | LO: NOS05IOP010-05, Objective 7. Evaluate the actions required by TSs or TRM during performance of S1/S2.OP-IO.ZZ-0010, Spent Fuel Pool Manipulations if any of the following limits are exceeded: FHB DP greater than -0.125 (less negative). | Source: New | Cognitive: Comprehension/Analysis
Connections
- Related systems: Containment
- Related procedures: S2.OP-AR.ZZ-0011 — Alarm Response (2CC1), S2.OP-IO.ZZ-0010 — Spent Fuel Pool Manipulations
- Related exam: 2023 NRC Written Exam