JPM SRO-A3 — Determine Component Operability and TS Actions
Admin | SRO | G2.2.37 (4.6)
Location: Classroom
Time-Critical: No
Alternate Path: No
Estimated Time: 15 minutes
Initial Conditions:
- Salem 1 is at 100% power.
- 13 SW Pump is C/T for motor replacement. Tagged at 0300 hours today.
- 1A EDG fails its Surveillance Test and was declared INOPERABLE today at 1200 hours.
Initiating Cue:
You are the Unit 1 CRS.
What Technical Specification Action statement(s) are applicable and why?
Time-Critical: No
Alternate Path: No
Estimated Time: 15 minutes
Initial Conditions:
- Salem 1 is at 100% power.
- 13 SW Pump is C/T for motor replacement. Tagged at 0300 hours today.
- 1A EDG fails its Surveillance Test and was declared INOPERABLE today at 1200 hours.
Initiating Cue:
You are the Unit 1 CRS.
What Technical Specification Action statement(s) are applicable and why?
Task Standard:
Determines T/S 3.8.1.1 actions b.1 (1 hour), b.3 (24 hours), b.4 (72 hours) is applicable. The candidate provides correct supporting information to T/S action and IAW attached answer key.
Determines T/S 3.8.1.1 actions b.1 (1 hour), b.3 (24 hours), b.4 (72 hours) is applicable. The candidate provides correct supporting information to T/S action and IAW attached answer key.
▶ Show Critical Steps & Key Actions
| Step | Critical Element | Standard |
|---|---|---|
| Part 1 * | What Technical Specification Action statement(s) are applicable and why? | TS 3.8.1.1 Action b.1 (1 hour) — perform operability verification of offsite sources. TS 3.8.1.1 Action b.3 (24 hours) — demonstrate OPERABILITY of remaining EDGs. TS 3.8.1.1 Action b.4 (72 hours) — restore 1A EDG to OPERABLE status. |
SW Operability Analysis (Key to Correct Answer):
With 13 SW Pump C/T, TWO SW Loops remain OPERABLE because:
- One OPERABLE SW pump powered from A vital bus: YES (15 & 16 SW Pumps)
- One OPERABLE SW pump powered from B vital bus: YES (14 SW Pump)
- One OPERABLE SW pump powered from C vital bus: YES (11 & 12 SW Pumps)
- Two OPERABLE SW pumps per Bay: YES (#1 Bay = 11 & 12; #3 Bay = 15 & 16)
Since TWO SW Loops remain OPERABLE, TS 3.7.4.1 is NOT applicable, and therefore TS 3.8.1.1 Action b.2 (verify redundant required features OPERABLE within 4 hours) is NOT required. This is Special Case D (Service Water) / Case #1 from S1.OP-SO.DG-0005, Exhibit 1.
With 13 SW Pump C/T, TWO SW Loops remain OPERABLE because:
- One OPERABLE SW pump powered from A vital bus: YES (15 & 16 SW Pumps)
- One OPERABLE SW pump powered from B vital bus: YES (14 SW Pump)
- One OPERABLE SW pump powered from C vital bus: YES (11 & 12 SW Pumps)
- Two OPERABLE SW pumps per Bay: YES (#1 Bay = 11 & 12; #3 Bay = 15 & 16)
Since TWO SW Loops remain OPERABLE, TS 3.7.4.1 is NOT applicable, and therefore TS 3.8.1.1 Action b.2 (verify redundant required features OPERABLE within 4 hours) is NOT required. This is Special Case D (Service Water) / Case #1 from S1.OP-SO.DG-0005, Exhibit 1.
Key Decision Point:
The candidate must recognize that 13 SW Pump being C/T does NOT make a SW loop inoperable. Per S1.OP-SO.SW-0005, two independent operable SW loops require one pump per vital bus and two pumps per bay. With 13 SW Pump C/T, all four criteria are still met. Therefore TS 3.8.1.1 Action b.2 (4-hour required feature verification) does NOT apply — only the standard single-EDG-inoperable actions (b.1, b.3, b.4) are entered.
The candidate must recognize that 13 SW Pump being C/T does NOT make a SW loop inoperable. Per S1.OP-SO.SW-0005, two independent operable SW loops require one pump per vital bus and two pumps per bay. With 13 SW Pump C/T, all four criteria are still met. Therefore TS 3.8.1.1 Action b.2 (4-hour required feature verification) does NOT apply — only the standard single-EDG-inoperable actions (b.1, b.3, b.4) are entered.
Ref: S1.OP-SO.DG-0005 (R10), S1.OP-SO.SW-0005 (R47), Salem Unit 1 Tech Specs 3.8.1.1 | Task: 112670302 | K/A: G2.2.37 — Ability to determine operability and/or availability of safety-related equipment | Source: Modified | View JPM PDF
Connections
- Related systems: EDGs, Service Water
- Related procedures: S1.OP-SO.DG-0005 — EDG Operability Determination
- Related tech specs: TS 3/4.8 — Electrical, TS 3/4.7 — Plant Systems
- Related exam: 2020 NRC Operating Exam