Tech Specs

Question 1

Per TS 3.9.4, SDC and Coolant Circulation - High Water Level, how many SDC Loops shall be operable and in-operation?

Answer 1

ONE

Applicability: M6 with water level >23’ above flange

Question 2

TS LCO 3.9.1 requires Boron to hold RX Core subcritical under cold conditions. What system is credited to maintain those conditions?

Answer 2

CVCS

Question 3

Per TS LCO 3.9.2, if we have 1 required SRM Inoperable, what are the actions (Condition A)?

Answer 3

A.1. Suspend Core Alts (Immediately) AND

A.2. Suspend Positive RX Adds (Immediately)

Question 4

Per TS LCO 3.9.2, how may SU range monitors shall be OPERABLE?

Answer 4

2

Applicability: Mode 6
* Enter 3.3.12 BDAS if made inoperable by SRM’s

Question 5

U2 in M6. SDC “A” OOS. Using SDC “B”.

What level must be maintained in RCS?

Answer 5

> 23’ above flange

Need 2 SDC Loops Operable if <23’

Question 6

ENG reported fuel cavity is 135’. What is done if we only have 1 SDC Loop?

Answer 6

Add 2’ of water is option, but can’t keep moving fuel (3.9.5 to 3.9.4)

Question 7

When is TS LCO 3.9.3 CTMT Penetrations Applicable? And what is required if 1 or more penetrations are NOT in required status?

Answer 7

During CORE ALTS

A.1. Suspend CORE ALTS (Immediately) AND
A.2. Suspend Fuel Movement (Immediately)

Question 8

Can you move FUEL <23’ above the flange?

Answer 8

YES

• Only when fuel being moved are NEW and not Irradiated (only INITIAL Load)

Question 9

Per TLCO 3.9.100, how long SHALL the RX be subcritical prior to fuel movement?

Answer 9

100 Hours

• If LESS, Suspend all OPS Immediately

Question 10

If 1 FBEV’s is NON-FUNCTIONAL during movement of irradiated fuel assemblies in the Fuel Bldg, what is required, and how long can you do it (TLCO 3.9.104)?

Answer 10

A.1. Verify Functional FBEVS train capable of being powered from emergency source (Immediately) AND
A.2. Restore FBEVS to Functional (7 Days)

Question 11

Why do we maintain SOLUBLE BORON in SFP?

Answer 11

SDM

< .95 kEFF

Question 12

Why do TS LCO 3.9.4 and 3.9.5 allow for off-load to continue with stopping SDC < 1 hour out of 8?

Answer 12

Permits Core Mapping, Core Alts near Hot Legs and/or ST’s

Question 13

Per TS LCO 3.3.8 (CPIAS) what is it the backup system to during Modes 1,2,3 and 4?

Answer 13

CIAS

Closes CTMT purge valves in event of HI RAD levels from primary leak in CTMT

Question 14

Per TS LCO 3.3.4, Condition D, If the Unit is at 80%, RTCB’s have problems on Channels 1 and 3 what do we do?

Answer 14

Open 1 and 3 Immediately

Question 15

100% power, RCS PRESS HI Channel A FAILED, BUT No RTCB’s are open, what does TS LCO 3.3.4 require?

Answer 15

OPEN or OPEN Redundant (in 1 hour) AND OPEN the Affected RTCB (48 Hours)

Question 16

Per TS LCO 3.3.9, Unit is in M1, and we lose CREFAS Train A, what is required? If a B train CREFAS RAD Monitor was taken OOS, what is then required?

Answer 16

NOTHING

A.1. Place CREFS train in essential (1 hour)

Question 17

Per TS LCO 3.3.3, 2 CEACS shall be Operable based on what reason?

Answer 17

Because a single RSPT is used to provide RSPT input to 1 CEAC in all 4 channels, this LCO requires BOTH CEAC’s to be Operable in each channel (prevent required trip from occurring)

Question 18

Per TS LCO 3.9.4, if SDC Loop requirements are NOT met, how long do we have to CLOSE all CTMT penetrations that have DIRECT atmosphere access?

Answer 18

4 Hours

Question 19

If 1 CEAC is INOPERABLE (TS LCO 3.3.3, Condition A), How often do we Verify indicated position of each FS or PSCEA is < 6.6” of all CEA’s in its group?

Answer 19

Once per 4 hours (SR 3.1.5.1)

Question 20

When is LCO 3.2.1 applicable, and what is the specified limit in the COLR?

Answer 20

Mode 1 with RTP > 20%

13. 1 KW/FT
    * Cond. A = If COLSS > Power Op Limit LHR, we have 1 Hour to restore within Limits

Question 21

Per TS LCO 3.1.5, all FSCEA’s shall be OPERABLE, and aligned 6.6” within group in Mode 1 and 2. What is requirement if only 1 CEA position indicator channel is OPERABLE for 1 CEA per Group?

Answer 21

B.1 Restore at least 2 position indicator channels to OPERABLE in 6 Hours, OR

B.2. Verify CEA Groups with INOPERABLE position are fully withdrawn/inserted, while maintaining 3.1.6/7/8 every 6 Hours AND Once per 12 Hours

Question 22

What RCS DNB parameters are required for TS LCO 3.4.1 and when are they applicable?

Answer 22

1. PZR Pressure 2130 - 2295 PSIA (M1 and M2)
2. RCS Tcold within figure 3.4.1-1 (M1 and M2 with Keff >1)
3. RCS Total Flow >155.8E^6 lbm/hour (M1)

Question 23

Per TS LCO 3.4.1, if PZR Pressure went to as low as 2100# for 30 minutes, what is required Condition?

Answer 23

3.4.1 Condition C - C.1 Restore parameters to within limits in 2 hours (MET and Exit LCO)

If not restored - D.1 Be in M3 in 6 Hours

Question 24

Per TS LCO 3.4.2 (RCS Minimum Temp for Criticality), what shall each RCS Loop temperature be greater or equal to, and when is it applicable?

Answer 24

Greater than or Equal to 545F (M1 and M2 with Keff >1)

Condition A - if NOT within Limit - A.1 Be in M3 in 30 Minutes

Question 25

Per TS LCO 3.1.1 (SDM - RX Trip Breakers Open), if it’s discovered that SDM is NOT GREATER or EQUAL to the value in the COLR, what are ACTIONS in M3?

Answer 25

3.1.1 Condition A - A.1 Initiate Boration to restore SDM within limits…IN 15 Minutes

Figure 3.1.1-1 (SDM %deltaK/K vs Tcold)