<1 Hr Actions

Question 1

DNBR > 1.14

Fuel Centerline Temp > 5080 F

Answer 1

2.1.1 Reactor Core SLs

Mode 1 and 2

Restore compliance and be in Mode 3
1 Hr

Question 2

RCS Pressure > 2733.5 psig

Answer 2

2.1.2 RCS Pressure SL

Mode 1, 2, 3, 4, and 5

In Mode 1 or 2: Restore compliance and be in Mode 3
1 Hr

In Mode 3, 4, or 5: Restore compliance
5 minutes

Question 3

One or more RTS Manual Actuation Functions with two manual actuation channels inoperable

Answer 3

3.3.5 RTS Manual Actuation

MODE 3, 4, or 5

Initiate action to fully insert all rods
AND
Place the PCS in a condition incapable of rod withdrawal.

1 Hr

Question 4

One or more required DC Electrical Power Subsystems Inoperable

Answer 4

3.8.2 DC Sources (Shutdown)

MODES 5 and 6,
During movement of irradiated fuel assemblies

Declare affected required features inoperable
Immediately

OR

Suspend movement of irradiated fuel
AND
Suspend operations with a potential for draining Rx
AND
Suspend operations involving positive reactivity additions that could result in loss of SDM or boron concentration
AND
Initiate action to restore to operable
Immediately

Question 5

One or more required inverters inoperable

Answer 5

3.8.4 Inverters (Shutdown)

MODES 5 and 6,
During movement of irradiated fuel assemblies

Declare affected required features inoperable
Immediately

OR

Suspend movement of irradiated fuel
AND
Suspend operations with a potential for draining Rx
AND
Suspend operations involving positive reactivity additions that could result in loss of SDM or boron concentration
AND
Initiate action to restore to operable
Immediately

Question 6

Two inoperable divisions that result in a loss of safety function

Answer 6

3.8.5 Distribution Systems - Operating

MODES 1, 2, 3, and 4

Enter LCO 3.0.3
Immediately

Question 7

One or more required DC or AC instrumentation and control bus electrical power distribution subsystems inoperable

Answer 7

3.8.5 Distribution Systems (Shutdown)

MODES 5 and 6,
During movement of irradiated fuel assemblies

Declare affected required features inoperable
Immediately

OR

Suspend movement of irradiated fuel
AND
Suspend operations with a potential for draining Rx
AND
Suspend operations involving positive reactivity additions that could result in loss of SDM or boron concentration
AND
Initiate action to restore to operable
Immediately

Question 8

One or more batteries in one division with one or more battery cells float voltage < 2.07 V and float current > 2 amps

Answer 8

3.8.7 Battery Parameters

When associated DC electrical power sources are required to be OPERABLE

Declare associated battery inoperable
Immediately

Question 9

One or more penetration flow paths with 2 containment isolation valves inoerable

Answer 9

3.6.3 Containment Isolation Valves

MODES 1, 2, 3, 4

Isolate affected penetration flow path by use of at least one closed and deactivate automatic valve, closed manual valve, or blind flange.

1 Hr