ML080240085
| ML080240085 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 01/23/2008 |
| From: | NRC/NRR/ADRO/DORL/LPLIII-1 |
| To: | |
| Peter Tam, NRR/DORL 415-1451 | |
| Shared Package | |
| ML080240068 | List: |
| References | |
| TAC MD6770 | |
| Download: ML080240085 (2) | |
Text
Control Room Ventilation System 3.7.5 3.7 PLANT SYSTEMS 3.7.5 Control Room Ventilation System LCO 3.7.5 APPLICABILITY:
Two control room ventilation subsystems shall be OPERABLE.
MODES 1, 2, and 3, During movement of recently irradiated fuel assemblies in the secondary containment, During operations with a potential for draining the reactor vessel (OPDRVs).
- ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One control room A.1 Restore control room 30 days ventilation subsystem ventilation subsystem to inoperable.
OPERABLE status.
B. Two control room B.1 Verify control room area Once per 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> ventilation subsystems temperature < 90 0F.
AND B.2 Restore one control room 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> ventilation subsystem to OPERABLE status.
C. Required Action and C.1 Be in MODE 3.
12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> associated Completion Time of Condition A or B AND not met in MODE 1, 2, or 3.
C.2 Be in MODE 4.
36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> D. Required Action and --
NOTE associated Completion LCO 3.0.3 is not applicable.
Time of Condition A not met during movement of recently irradiated fuel D. 1 Place OPERABLE control Immediately assemblies in the room ventilation subsystem secondary containment in operation.
or during OPDRVs.
Monticello 3.7.5-1 Amendment No. 146,1-48, 154
Control Room Ventilation System 3.7.5 ACTIONS (continued)
CONDITION REQUIRED ACTION COMPLETION TIME OR D.2.1 Suspend movement of Immediately recently irradiated fuel assemblies in the secondary containment.
AND D.2.2 Initiate action to suspend Immediately OPDRVs.
E. Required Action and NOTE associated Completion LCO 3.0.3 is not applicable.
Tim e of Condition B not met during movement of recently irradiated fuel E.1 Suspend movement of Immediately assemblies in the recently irradiated fuel secondary containment assemblies in the or during OPDRVs.
AND E.2 Initiate actions to suspend Immediately OPDRVs.
SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.7.5.1 Verify'each control room ventilation subsystem has 24 months the capability to remove the assumed heat load.
Monticello 3.7.5-2 Amendment No. 4,6, !48,154