ML18139B250
| ML18139B250 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 04/16/1981 |
| From: | Sylvia B VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | Harold Denton, Varga S Office of Nuclear Reactor Regulation |
| References | |
| 250, NUDOCS 8104210357 | |
| Download: ML18139B250 (1) | |
Text
VIRGINIA ELECTRIC A.'fD POWER CoMPA.NY Rxc:JDJ:OND, 'Vx::HGUI' IA 23261 April 16, 1981 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation Attn:
Mr. Steven A. Varga, Chief Operating Reactor Branch No. 1 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Dear Mr. Denton:
Serial No. 250 NO/RMT:jmj Docket No. 50-281 License No. DPR-37 This letter report is submitted in accordance with the provisions of Surry Power Station Technical Specification 4.14.C.l.
During the period from 1400 to 1500 on April 6, 1981, the condenser's cooling water outlet temperature exceeded the maximum average rate of change of 30F/
hr. permitted by Technical Specification 4.14.A.3.
The average rate of change during this period was 3 l/2°F/hr, At the time of this event, Unit No. 1 was at cold shutdown and Unit No. 2.was at 40% power escalating to full power operation.
The lack of service water flow through Unit No. 1 is believed to be a major contributing. factor to this event, It should be recognized that all due care and caution were exercised during the power escalation.
A search was conducted to determine if the temperature change had affected the river environment.
No detrimental evidence was found.
cc:
Mr. James P. O'Reilly s
Very truly yours, Manager - Nuclear Operations and Maintenance