LCOs 1 - Blind

Question 1

3.1 Reactivity Control Systems

3.1.1

**1 Hour Actions Associated

Answer 1

Shutdown Margin

LCO
SDM Shall be:

a. ≥ 0.38% dk/k, with the highest worth control rod analytically determined; or

b. ≥ 0.28% dk/k, with the highest worth control rod determined by test.

Applicability
Modes 1, 2, 3, 4, & 5

1 Hour Actions
Not within limits Mode 3: Initiate action to fully insert all insertable control rods immediately.

Not within limits Mode 4: Initiate action to fully insert all insertable control rods immediately, suspend core alts, and initiate action to restore all containment related operabilities.

Question 2

3.1 Reactivity Control Systems

3.1.2

Answer 2

Reactivity Anamolies

LCO
The Reactivity difference between the monitored rod density and the predicted rod density shall be within ± 1% dk/k.

Applicability
Modes 1, 2

Question 3

3.1Reactivity Control Systems

3.1.3

**1 Hour Actions Associated

Answer 3

Control Rod Operability

LCO
Each control rod shall be operable.

Applicability
Modes 1, 2

1 Hour actions:
1 stuck contorl rod - Verity stuck control rod separation criteria met.

Question 4

3.1Reactivity Control Systems

3.1.4

Answer 4

Control Rod Scram Times

LCO
A. No more than 13 operable control rods shall be “slow,” in accordance with Table 3.1.4-1; and

B. No operable control rod that is “slow” shall occupy a location adjacent to another operable control rod that is “slow” or a withdrawn control rod that is stuck.

Applicability
Modes 1 & 2

Question 5

3.1Reactivity Control Systems

3.1.5

1 Hour Associated Actions

Answer 5

Control Rod Scram Accumulators

LCO
Each control rod scram accumulator shall be operable.

Applicability
Modes 1, 2.

1 Hour Actions
Two or more accumulators inoperable with steam dome pressure ≥ 600 psig - Restore charing water header pressure to ≥ 1520 psig within 20 minutes AND either declare associated control rod slow (as long as it wasn’t slow in its last surveillence) or declare associated control rod inoperable within 1 hour.

One or more accumulator inoperable with steam done pressure < 600 psig - Verify all contorl rods associated with inoperable accumulators are fully inserted immediately upon discovery of charging water header pressure < 1520 psig, AND declare the associated control rod inoperable within 1 hour.

If any rods associated with inoperable accumulator are not fully inserted and actions can not be complete, immediately place the mode switch in shutdown.

Question 6

3.1Reactivity Control Systems

3.1.6

**1 Hour Associated Actions

Answer 6

Control Rod Pattern

LCO
Operable control rods shall comply with the requirements of the BPWS.

Applicability
Modes 1 & 2 with thermal power ≤ 19% RTP.

1 Hour Actions
Nine or more operable control rods not in compliance with BPWS - Immediately suspend control rod withdrawal and place mode switch in S/D within 1 hour.

Question 7

3.1Reactivity Control Systems

3.1.7

Answer 7

SLC System

LCO
Two SLC subsystems shall be operable.

Applicability
Modes 1, 2.

Question 8

3.1Reactivity Control Systems

3.1.8

Answer 8

SDV Vent and Drain Valves

LCO
Each SDV vent and drain valve shall be operable.

Applicability
Modes 1, 2.

Question 9

3.2 Power Distribution Limits

3.2.1

Answer 9

APLHGR

LCO
All APLHGRs shall be ≤ limits specified in COLR.

Applicability
Thermal Power ≥ 23.8% RTP.

Question 10

3.2 Power Distribution Limits

3.2.2

Answer 10

MCPR

LCO
All MCPRs shall be ≥ limits specified in COLR.

Applicability
Thermal Power ≥ 23.8% RTP.

Question 11

3.2 Power Distribution Limits

3.2.3

Answer 11

LHGR

LCO
All LHGRs shall be ≤ limits specified in COLR.

Applicability
Thermal Power ≥ 23.8% RTP.

Question 12

3.3 Instrumentation

3.3.1.1

NI/Scram Subsection

1 Hour Actions Associated

Answer 12

RPS Instrumentation

LCO
RPS Instrumentation for each Function in table 3.3.1.1-1 shall be operable.

Applicability
IAW Table 3.3.1.1-1

1 Hour Actions
Loss of RPS trip function capability - Restore trip capability within 1 hour.

Any condition action no complete - Initiate action to fully insert all insertable control rods in cells containing one or more fuel assemblies.

Question 13

3.3 Instrumentation

3.3.1.2

NI/Scram Subsection

1 Hour Associated Actions

Answer 13

SRM Instrumentation

LCO
The SRM instrumentation in table 3.3.1.2-1 shall be operable.

Applicability
According to table 3.3.1.2-1

1 Hour Actions
Three or more required SRMs inoperable in Mode 2 below IRM R2 - Immediately suspend control rod withdrawal.

One or more required SRMs inoperable in mode 3 or 4 - Insert all insertable control rods and place mode switch in S/D within 1 hour.

One or more required SRMs inoperable in mode 5 - Suspend core alts except for control rod insertion and insert all insertable control rods in cells containing one or more fuel assemblies immediately.

Question 14

3.3 Instrumentation

3.3.1.3

NI/Scram Subsection

Answer 14

OPRM Instrumentation

LCO
Four channels of the OPRM period based algorithm instrumentation shall be operable.

Applicability
Thermal power ≥ 23.8% RTP.

Question 15

3.3 Instrumentation

3.3.2.1

1 Hour Actions Associated

Answer 15

Control Rod Block Instrumentation

LCO
The Control Rod Block instrumentation for each Function in table 3.3.2.1-1 shall be operable.

Applicability
According to table 3.3.2.1-1

One or more RWL inoperable - Suspend control rod withdrawal immediately.

One or more RPC channels inoperable - Suspend control rod movement except by scram immediately.

One or more Mode Switch Position Monitor inoperable - Suspend control rod withdrawal and initiate action to insert alll insertable control rods immediately.

Question 16

3.3 Instrumentation

3.3.3.1

Shit hit the fan systems

Answer 16

Post Accident Monitoring Instrumentation

LCO
The PAM instrumentation for each Function in table 3.3.3.1-1 shall be operable.

Applicability
Modes 1 & 2

Question 17

3.3 Instrumenation

3.3.3.2

Shit hit the fan systems

Answer 17

Remote Shutdown System

LCO
The RSD system Functions shall be operable.

Applicability
Modes 1 & 2

Question 18

3.3 Instrumentation

3.3.4.1

Pump Trip Systems

Answer 18

EOC RPT

LCO
Two channels per trip system for each EOC-RPT instrumentation function listed below shall be operable:

a. TSV Closure; and
b. TCV Fast Closure, Trip Oil Pressure Low

Applicability
Thermal Power ≥ 38% RTP with any recirc pump in fast speed.

Question 19

3.3 Instrumentation

3.3.4.2

Pump Trip Systems

1 Hour Actions Associated

Answer 19

ATWS RPT

LCO
Two channels per trip system for each ATWS-RPT instrumentation listed below shall be operable:

a. Reactor Vessel Water Level - Low Low, L2; and
b. Reactor Vessel Pressure High

Applicability
Mode 1

1 Hour Actions
Both ATWS-RPT function trip capabilities not maintained - Restore trip capability to one function within 1 hour.

Question 20

3.3 Instrumentation

3.3.5.1

Safety System Sub-section

Answer 20

ECCS Instrumentation

LCO
The ECCS instrumentation for each Function in Table 3.3.5.1-1 shall be operable.

Applicability
According to table 3.3.5.1-1

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Question 21

3.3 Instrumentation

3.3.5.2

Safety System Sub-section

Answer 21

RPV Water Inventory Control Instrumentation

LCO
RPV Water Inventory Control instrumentation for each Function in table 3.3.5.2-1 shall be operable.

Applicability
According to Table 3.3.5.2-1

Question 22

3.3 Instrumentation

3.3.5.3

Safety System Sub-section

Answer 22

RCIC System Instrumentation

LCO
The RCIC system instrumentation for each Function in table 3.3.5.3-1 shall be operable.

Applicability
Mode 1
Modes 2 & 3 with reactor steam dome pressure > 150 PSIG.

Question 23

3.3 Instrumentation

3.3.6.1

Containment Safety Sub-section

Answer 23

Primary Containment & Drywell Isolation Instrumentation

LCO
The primary containment and drywell isolation instrumentation for each Function in table 3.3.6.1-1 shall be operable.

Applicability
According to table 3.3.6.1-1

Question 24

3.3 Instrumentation

3.3.6.2

Containment Safety Sub-section

Answer 24

RHR Containment Spray System Instrumentation

LCO
The RHR Containment spray system instrumentation for each Function in table 3.3.6.2-1 shall be operable.

Applicability
Modes 1, 2, & 3.

Question 25

# 3.3 Instrumentation 3.3.6.3 | Containment Safety Sub-section

Answer 25

**SPMU Instrumentation** **LCO** SPMU system instrumentation for each Function in table 3.3.6.3-1 shall be operable. **Applicability** Modes 1, 2, & 3.

Question 26

# 3.3 Instrumentation 3.3.6.4 | Containment Safety Sub-section

Answer 26

**Relief and LLS Instrumentation** **LCO** Two relief & the LLS instrumentation trip systems shall be operable. **Applicability** Modes 1, 2, & 3.

Question 27

# 3.3 Instrumentation 3.3.7.1

Answer 27

**Control Room Emergency Recirc System Instrumentation** **LCO** The CRER system instrumentation for each Function in table 3.3.7.1-1 shall be operable. **Applicability** According to table 3.3.7.1-1

Question 28

# 3.3 Instrumentation 3.3.8.1 | Electrical Sub-section

Answer 28

**Loss of Power Instrumentation** **LCO** The LOP instrumentation for each Function in table 3.3.8.1-1 shall be operable. **Applicability** Modes 1, 2, & 3.

Question 29

# 3.3 Instrumentation 3.3.8.2 | Electrical Sub-section

Answer 29

**RPS EPM** **LCO** Two RPS electric power monitoring assemblies shall be operable for each inservice RPS motor generator set or alternate power supply. **Applicability** Modes 1, 2, & 3. Modes 4 & 5 with any control rod withdrawn from a core cell containing one or more fuel assemblies. Modes 4 & 5 with RHR SDC system not isolated.

Question 30

# 3.4 RCS 3.4.1

Answer 30

**Recirc Loops Operating** **LCO** Either: a. Two recirculation loops shall be in operation with matched flows: *OR* b. One recirculation loop shall be in operation with: Thermal Power ≤ 2500 MWt **AND** MCPR & LHGR limits modified for single loop operation IAW COLR **AND** RPS Flow Biased Thermal Power High reset for single loop operation. **Applicability** Modes 1, 2

Question 31

# 3.4 RCS 3.4.2

Answer 31

**FCVs** **LCO** A recirc loop FCV shall be operable in each operating recirc loop. **Applicability** Modes 1 & 2.

Question 32

# 3.4 RCS 3.4.3

Answer 32

**Jet Pumps** **LCO** All jet pumps shall be operable **Applicability** Modes 1 & 2.

Question 33

# 3.4 RCS 3.4.4

Answer 33

**SRVs** **LCO** Safety function of 7 SRVs shall be operable & relief function of 6 additional SRVs shall be operable. **Applicability** Modes 1, 2, & 3.

Question 34

# 3.4 RCS 3.4.5

Answer 34

**RCS Operational Leakage** **LCO** RCS operational leakage shall be limited to: 1. No pressure boundary leakage 2. ≤ 5 gpm unidentified leakage 3. ≤ 30 gpm total leakage **AVERAGED** over the previous 24 hour period 4. ≤ 2 gpm increase in unidentified leakage within the previous 24 hour period **IN MODE 1** **Applicability** Modes 1, 2, & 3.

Question 35

# 3.4 RCS 3.4.6

Answer 35

**RCS Pressure Isolation Valve Leakage** **LCO** The leakage from each RCS PIV shall be within limit. **Applicability** Modes 1 & 2. Mode 3, except valves in the RHR SDC flow path when in, or during the transition to or from, the SDC mode of operation.

Question 36

# 3.4 RCS 3.4.7

Answer 36

**RCS Leakage Detection Instrumentation** **LCO** The following RCS leakage detection instrumentation shall be operable: a. Drywell floor drain sump monitoring system; b. One channel of either drywell atmospheric particulate monitoring system or drywell atmospheric gaseous monitoring system; and c. Upper drywell air cooler condensate flow rate monitoring system. **Applicability** Modes1, 2, & 3

Question 37

# 3.4 RCS 3.4.8

Answer 37

**RCS Specific Activity** **LCO** The Dose equivalent I-131 specific activity of the reactor coolant shall be ≤ 0.2 µCi/gm. **Applicability** Mode 1 Modes 2 & 3 with any MSL not isolated.

Question 38

# 3.4 RCS 3.4.9

Answer 38

**RHR SDC - Hot Shutdown** **LCO** Two RHR SDC subsystems shall be operable, and, with no recirc pump in operation, at least one RHR SDC subsystem shall be in operation. *Note* Both RHR SDC subsystems and recirc pumps may be removed from operation for up to 2 hours per 8 hour period. *Note* One RHR SDC subsystem may be inoperable for up to 2 hours for performance of Surveillances. **Applicability** Mode 3 with Rx steam dome pressure less than the RHR cut in permissive.

Question 39

# 3.4 RCS 3.4.10

Answer 39

**RHR SDC - Cold Shutdown** **LCO** Two RHR SDC subsystems shall be operable, and, with no recirc pump in operation, at least one RHR SDC subsystem shall be in operation. *Note* Both RHR SDC subsystems & recirc pumps may be removed from operation for up to 2 hours per 8 hour period. *Note* One RHR SDC subsystem may be inoperable for up to 2 hours for the performance of Surveillances. *Note* Both RHR SDC subsystems & recirc pumps may be removed from operation during inservice leak and hydrostatic testing. **Applicability** Mode 4 when heat losses to the ambient are not sufficient to maintain average reactor coolant temperature ≤ 200F

Question 40

# 3.4 RCS 3.4.11

Answer 40

**RCS P/T Limits (Brittle Fracture)** **LCO** RCS Pressure, Temperature, HUR, CDR, & Recirc loop temperature requirements shall be maintained within limits. **Applicability** **AT ALL TIMES**

Question 41

# 3.4 RCS 3.4.12

Answer 41

**Reactor Steam Dome Pressure** **LCO** The reactor steam dome pressure shall be ≤ 1045 psig. **Applicability** Modes 1 & 2.

Question 42

# 3.5 ECCS 3.5.1

Answer 42

**ECCS Operating** **LCO** Each ECCS injection/spray subsystem and the ADS function of 8 SRVs shall be operable. **Applicability** Mode 1 Modes 2 & 3, except ADS valves are not required to be operable with reactor steam dome pressure ≤ 150 psig.

Question 43

# 3.5 ECCS 3.5.2

Answer 43

**RPV Water Inventory Control** **LCO** Drain Time of RPV water inventory to the TAF shall be ≥ 36 hours. **AND** One ECCS injection/spray subsystem shall be operable. *Note* A LPCI subsystem may be considered operable during alignment and operation for DHR, if capable of being manually realigned and not otherwise inoperable. **Applicability** Modes 4 & 5

Question 44

# 3.5 ECCS 3.5.3

Answer 44

**RCIC** **LCO** The RCIC system shall be operable. **Applicability** Mode 1 Modes 2 & 3 with reactor steam dome pressure > 150 psig.