PNO-I-98-048, on 981016,Vermont Yankee Commenced Normal Plant Shutdown,Due to Increasing Steam Leakage from Instrumentation Line on Main Steam High Pressure Drain Sys in Steam Tunnel.Outage Expected to Last Several Days
| ML20154P643 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 10/16/1998 |
| From: | Cowgill C, Brian Mcdermott NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| References | |
| PNO-I-98-048, PNO-I-98-48, NUDOCS 9810230034 | |
| Download: ML20154P643 (1) | |
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, October 16,1998 PRELIMINAlkY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE PNO-I-98-048 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without verification or evaluation, and is basically all that is known by Region I staff in King of Prussia, Pennsylvania on this date.
Facility Licensee Emereeney Classification Vermont Yankee Nuclear Power Corp.
Notification of Unusual Event Vermont Yankee 1 Alert Vernon, Vermont Site Area Emergency Dockets: 50-271 General Emergency X Not Applicable
Subject:
EARI,Y COMMENCEMENT OF PLANNED OUTAGE DUE TO A DEGRADING STEAM LEAK At 1:12 a.m. on Friday, October 16,1998, Vermont Yankee commenced a normal plant shutdown due to increasing steam leakage from an instrumentation line on the main steam high pressure drain system in the steam tunnel. The licensee had previously planned for an outage to effect repairs on the main turbine regulator systems to commence on Monday, October 19,1998. Major work planned for the outage is repair of the main turbine pressure regulator system and repairing the steam leak in the steam tunnel. No significant problems were encountered during the shutdown. Currently the licensee is in the process of cooling the plant down to atmosphere pressure and temperature less than 200 degrees Fahrenheit. The outage is expected to last several days.
There were no abnormal increases to external radiation levels due to the steam leak or the reactor shutdown.
The licensee has issued a press release.
The State of Vermont has been informed about the information in this PN.
Contact:
B. McDermott C. Cowgill (802)257-4319 (610)337-5233 9810230034 981016 PDR I&E PNO-I-98-048 PDR O
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