ML043630506
| ML043630506 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 12/23/2004 |
| From: | Bo Pham NRC/NRR/DLPM/LPD4 |
| To: | Ray H Southern California Edison Co |
| pham b m, nrr dlpm lpdiv-2, 301-415-8450 | |
| Shared Package | |
| ML043570497 | List: |
| References | |
| TAC MC0317, TAC MC0318 | |
| Download: ML043630506 (1) | |
Text
Containment Penetrations 3.9.3 3.9 REFUELING OPERATIONS 3.9.3 Containment Penetrations LCO 3.9.3 The containment penetrations shall be in the following status:
- a. The equipment hatch closed and held in place by four bolts;
NOTE--------------
The equipment hatch may be open if all of the following conditions are met:
- 1)
The Containment Structure Equipment Hatch Shield Doors are capable of being closed within 30 minutes,
- 2)
The plant is in Mode 6 with at least 23 feet of water above the reactor vessel flange,
- 3)
A designated crew is available to close the Containment Structure Equipment Hatch Shield Doors, 43 Containment purge is in service, and The reactor has been subcritical for at least 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
- b.
One door in each air lock closed;
NOTE-----------------------------
Both doors of the containment personnel airlock may be open provided:
- a. one personnel airlock door is OPERABLE, and bl. the plant is in MODE 6 with 23 feet of water above the fuel in the reactor vessel, or b2. defueled configuration with fuel in containment (i.e., fuel in refueling machine or upender).
- c. Each penetration providing direct access from the containment atmosphere to the outside atmosphere shall be either:
- 1. closed by a manual or automatic isolation valve, blind flange, or equivalent, or
- 2. capable of being closed by an OPERABLE Containment Purge System.
APPLICABILITY:
During CORE ALTERATIONS, During movement of irradiated fuel assemblies within containment.
SAN ONOFRE--UNIT 3 3.9-4 Amendment No. 184