ML19308D070
| ML19308D070 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 02/09/1977 |
| From: | Stewart W FLORIDA POWER CORP. |
| To: | Moseley N NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| Shared Package | |
| ML19308D071 | List: |
| References | |
| CS-77-24, NUDOCS 8002270570 | |
| Download: ML19308D070 (1) | |
Text
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SFILE COPY on Mr. Norman C. Moseley, Director Docket No. 50-302 Office of Inspmtion and Enforcement License #DPR-72 U. S. Nuclear Regulatory Commission Licensee Event Report 77-9 230 Peach ree St., N.W., Suite 818 Atlanta, Georgia 30303
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Dear Mr. Moseley:
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This report is submitted in accordance with Technical Specification 6.9.1 and Regulatory Guide 1.16, Revision 4, Section 2.a. (9) as a written Four-teen (14) Day Report. Your office was notified on' 3 February 1977 of-this event.
While in Mode 4 (Hot Shutdown), two Decay Heat Valves (DHV-4 and DHV-41) on the pressure drop line did not open on Control Center actuation. They were quickly opened by hand.
The cause of this event is believed to be the effect of pressure acting on the gate valve discs. A modification to provide a relief line has been initiated to prevent recurrence. In addition to this, as an interim measure, the torque setting on the valve operator has been increased.
No adverse consequences resulted from this event.
Very truly yours, FLORIDA POWER CORPORATION Ch Duk lM W. P. Stewart Director, Power Production DWP/feh Enclosure 1879 s0 SEN E
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General Office 3201 Thirty-fourin street souin. e o Box 14042, st Petersburg, Florda 33733. 813-866-5151 s
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