3.9 "Refueling Operations"

Question 1

LCO 3.9.1 title

Answer 1

Boron Concentration

Question 2

LCO 3.9.1 requirement

Answer 2

Boron concentrations of the PCS and refueling cavity shall be maintained at the refueling boron concentration

Question 3

LCO 3.9.1 applicability

Answer 3

Mode 6

Question 4

LCO 3.9.1 required actions < 1 hour

Answer 4

Boron concentration not w/in limit, then suspend core alterations, suspend positive reactivity additions, AND initiate action to restore boron concentration to w/in limit immediately

Question 5

LCO 3.9.2 title

Answer 5

Nuclear Instrumentation

Question 6

LCO 3.9.2 requirement

Answer 6

2 source range channels shall be operable

Question 7

LCO 3.9.2 applicability

Answer 7

Mode 6

Question 8

LCO 3.9.2 required actions < 1 hour

Answer 8

• 1 source range channel inoperable, then suspend core alterations, AND suspend positive reactivity additions immediately
• 2 source range channels inoperable, then initiate action to restore 1 source range channel to operable immediately

Question 9

LCO 3.9.3 title

Answer 9

Containment Penetrations

Question 10

LCO 3.9.3 requirement

Answer 10

The containment penetrations shall be in the following status:

• The equipment hatch closed and held in place by 4 bolts (only required to be closed when fuel handling area ventilation system isn’t in compliance with LCO 3.7.12 “Fuel Handling Area Ventilation System”
• 1 door in the personnel air lock closed (only required when the equipment hatch is closed)
• 1 door in the emergency air lock closed
• Each penetration providing direct access from containment atmosphere to outside atmosphere either closed by manual or automatic isolation valve, blind flange or equivalent, OR capable of being closed by an operable Refueling Containment High Radiation Initiation signal

Question 11

LCO 3.9.3 applicability

Answer 11

• During core alterations

- During movement of irradiated fuel assemblies w/in containment

Question 12

LCO 3.9.3 required actions < 1 hour

Answer 12

1 or more containment penetrations not in required status, then suspend core alterations AND suspend movement of irradiated fuel assemblies w/in containment immediately

Question 13

LCO 3.9.4 title

Answer 13

SDC and Coolant Circulation - High Water Level

Question 14

LCO 3.9.4 requirement

Answer 14

• 1 SDC train shall be operable and in operation
• The required SDC train may not be in operation for <= 1 hour per 8 hour period, provided no operations are permitted that would cause reduction of the PCS boron concentration
• The required SDC train may be made inoperable for <= 2 hours per 8 hour period for testing or maintenance, provided 1 SDC train is in operation providing flow through the core, and core outlet temperature is <= 200 F

Question 15

LCO 3.9.4 applicability

Answer 15

Mode 6 with refueling cavity water level >= 647’ elevation

Question 16

LCO 3.9.4 required actions < 1 hour

Answer 16

1 required SDC train inoperable or not in operation, then initiate action to restore SDC train to operable and in operation, suspend operations involving a reduction in PCS boron concentration, AND suspend loading irradiated fuel assemblies in the core immediately

Question 17

LCO 3.9.5 title

Answer 17

SDC and Coolant Circulation - Low Water Level

Question 18

LCO 3.9.5 requirement

Answer 18

2 SDC trains shall be operable and 1 SDC train shall be in operation

Question 19

LCO 3.9.5 applicability

Answer 19

Mode 6 with refueling cavity water level < 647’ elevation

Question 20

LCO 3.9.5 required actions < 1 hour

Answer 20

• 1 SDC train inoperable, then initiate action to restore SDC train to operable OR initiate action to establish refueling cavity water level >= 647’ elevation immediately
• No SDC train operable or in operation, then suspend operations involving a reduction in PCS boron concentration, initiate action to restore 1 SDC train to operable and in operation. AND initiate action to close all containment penetrations providing direct access from containment atmosphere to outside atmosphere immediately

Question 21

LCO 3.9.6 title

Answer 21

Refueling Cavity Water Level

Question 22

LCO 3.9.6 requirement

Answer 22

Refueling cavity water level shall be maintained >= 647’ elevation

Question 23

LCO 3.9.6 applicability

Answer 23

• During core alterations

- During movement of irradiated fuel assemblies w/in containment

Question 24

LCO 3.9.6 required actions < 1 hour

Answer 24

Refueling cavity water level not w/in limit, then suspend core alterations AND suspend movement of irradiated fuel assemblies w/in containment immediately