ML042180191
| ML042180191 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 07/30/2004 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shukla G, NRR/DLPM/LPDIV-2/415-8439 | |
| Shared Package | |
| ML042180405 | List: |
| References | |
| TAC MC3895 | |
| Download: ML042180191 (2) | |
Text
Containment Spray and Cooling Systems 3.6.6 3.6 CONTAINMENT SYSTEMS 3.6.6 Containment Spray and Cooling Systems LCO 3.6.6 The containment fan cooling unit (CFCU) system and two containment spray trains shall be OPERABLE.
APPLICABILITY:
MODES 1, 2,3, and 4.
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A.
One containment spray A.1 Restore containment---NOTES train Inoperable.
spray train to The Condition A OPERABLE status.
Completion Times may be extended to 14 days for Unit 2 cycle 12 for containment spray pump 2-2 control circuit cable maintenance.
72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> AND 10 days from discovery of failure to meet the LCO B.
Required Action and B.1 Be In MODE 3.
6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> associated Completion Time of Condition A not AND met.
B.2 Be in MODE 5.
84 hours9.722222e-4 days <br />0.0233 hours <br />1.388889e-4 weeks <br />3.1962e-5 months <br /> C.
One required CFCU system C.1 Restore required CFCU 7 days inoperable such that a system to OPERABLE AND minimum of two CFCUs status.
remain OPERABLE.
10 days from discovery of failure to meet the LCO (continued)
DIABLO CANYON - UNITS 1 & 2 3.6-13 Unit 1 - Amendment No. 135 Unit 2 - Amendment No. Q6, 173
Containment Spray and Cooling Systems 3.6.6 ACTIONS (continued)
CONDITION REQUIRED ACTION COMPLETION TIME D. One required containment D.1 Restore one required 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> spray train inoperable and containment spray one required CFCU system system to OPERABLE Inoperable such that a
D.2 Restore one CFCU 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> system to OPERABLE status such that four CFCUs or three CFCUs, each supplied by a different vital bus, are OPERABLE.
E. Required Action and E.1 Be In MODE 3.
6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> associated Completion lime of Condition C or D AND not met.
E.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 /> F. Two containment spray F.1 Enter LCO 3.0.3.
Immediately trains inoperable.
OR One containment spray train inoperable and two CFCU systems inoperable such that one or less CFCUs remain OPERABLE.
OR One or less CFCUs OPERABLE.
I DIABLO CANYON - UNITS I & 2 3.6-14 Unit 1 - Amendment No. 135 Unit 2 - Amendment No. 4-5, 173