ML23289A218
| ML23289A218 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 10/16/2023 |
| From: | Ameren Missouri, Union Electric Co |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML23289A214 | List: |
| References | |
| ULNRC-06825, LDCN 22-0029 | |
| Download: ML23289A218 (1) | |
Text
Enclosure to ULNRC-06825 Page 1 of 4 Proposed TS Changes (Markups)
CALLAWAY PLANT 3.4-16 Amendment No. 213 l RCS Loops - MODE 5, Loops Not Filled 3.4.8 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.8 RCS Loops - MODE 5, Loops Not Filled LCO 3.4.8 Two residual heat removal (RHR) loops shall be OPERABLE and one RHR loop shall be in operation.
NOTES --------------------------------------------
1.
All RHR pumps may be removed from operation for 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> provided:
a.
The core outlet temperature is maintained at least 10°F below saturation temperature.
b.
No operations are permitted that would cause introduction into the RCS, coolant with boron concentration less than required to meet the SDM of LCO 3.1.1; and c.
No draining operations to further reduce the RCS water volume are permitted.
2.
One RHR loop may be inoperable for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> for surveillance testing provided that the other RHR loop is OPERABLE and in operation.
3.
The Service Water system may serve as the alternate source of cooling water to the Essential Service Water system for support of the second required RHR train, i.e., the RHR train not supported by the emergency diesel generator required per Technical Specification 3.8.2, provided the plant is not in a reduced-inventory, hot-core condition.
APPLICABILITY:
MODE 5 with RCS loops not filled.
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A.
One RHR loop inoperable.
A.1 Initiate action to restore RHR loop to OPERABLE status.
Immediately (continued)
CALLAWAY PLANT 3.7-32 Amendment No. 198 l CRACS 3.7.11 3.7 PLANT SYSTEMS 3.7.11 Control Room Air Conditioning System (CRACS)
LCO 3.7.11 APPLICABILITY:
MODES 1, 2, 3, 4, 5, and 6, During movement of irradiated fuel assemblies.
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A.
One CRACS train inoperable.
A.1 Restore CRACS train to OPERABLE status.
30 days B.
Required Action and associated Completion Time of Condition A not met in MODE 1, 2, 3, or 4.
B.1 Be in MODE 3.
AND 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> B.2 Be in MODE 5.
36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> (continued)
Two CRACS trains shall be OPERABLE.
NOTE ----------------------------------------------
During MODES 5 and 6, and during movement of irradiated fuel assemblies, the Service Water system may serve as the alternate source of cooling water to the Essential Service Water system for support of the second required CRACS train, i.e., the CRACS train not supported by the emergency diesel generator required per Technical Specification 3.8.2.
CALLAWAY PLANT 3.9-11 Amendment No. 181 l RHR and Coolant Circulation - Low Water Level 3.9.6 3.9 REFUELING OPERATIONS 3.9.6 Residual Heat Removal (RHR) and Coolant Circulation - Low Water Level LCO 3.9.6 APPLICABILITY:
MODE 6 with the water level < 23 ft above the top of reactor vessel flange.
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A.
Less than the required number of RHR loops OPERABLE.
A.1 Initiate action to restore required RHR loops to OPERABLE status.
OR Immediately A.2 Initiate action to establish 23 ft of water above the top of reactor vessel flange.
Immediately (continued)
Two RHR loops shall be OPERABLE, and one RHR loop shall be in operation.
NOTES --------------------------------------------
The Service Water system may serve as the alternate source of cooling water to the Essential Service Water system for support of the second required RHR train, i.e., the RHR train not supported by the emergency diesel generator required per Technical Specification 3.8.2, provided the plant is not in a reduced-inventory, hot-core condition.