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Morning Report for August 28, 2006
Headquarters Daily Report
REGION II
UNIT 2 REACTOR TRIP DUE TO LOSS OF REACTOR COOLANT PUMP
| Licensee/Facility: SOUTHERN NUCLEAR OPERATING CO., INC. Vogtle 1, Vogtle 2 WAYNESBORO, Georgia Dockets: 05000424, 05000425 [1] W-4-LP, [2] W-4-LP License No: | Notification: MR Number: 2-2006-0003 Date: 08/28/2006 Call from SRI |
Discussion:
This Morning Report provides information concerning a Unit 2 reactor trip that occurred on August 27, 2006. While operating at 99.7% of full rated thermal power, the number 4 reactor coolant pump (RCP) tripped. Since the reactor was operating above the P-8 setpoint, an automatic reactor trip was generated on single reactor coolant system (RCS) loop low flow. Auxiliary feedwater (AFW) automatically started on steam generator low-low level as expected. The reactor was stabilized and is currently being maintained in Mode 3 (Hot Standby) using AFW and condenser steam dumps.
The licensee is conducting troubleshooting to determine the cause of the RCP number 4 trip. If the licensee determines that the RCP motor must be replaced, the unit will likely be taken to Mode 5 (Cold Shutdown) to facilitate the repair which would be in excess of 72 hours.
Accession Numbers:
| Accession No | Accession Date |
|---|---|
| ML062400423 | 08/28/2006 |
Contacts:
| Name | Office Abbrev | Phone No | |
|---|---|---|---|
| SHAEFFER, SCOTT M | R2 | (404) 562-4520 | SMS@nrc.gov |
Page Last Reviewed/Updated Tuesday, September 08, 2026
Page Last Reviewed/Updated Tuesday, September 08, 2026