ML20207H937
| ML20207H937 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 12/10/1986 |
| From: | Tucker H DUKE POWER CO. |
| To: | Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NUDOCS 8701080223 | |
| Download: ML20207H937 (2) | |
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- o DUKE POWER GOMPANY P.O. box 33180 CHARLOTTE, N.C. 28242 HALH. TUCKER ATzt.rrnown 03 0[C 29 P ?.. I po4)am-4aan y,e==
4 December 10, 1986 Dr. J. Nelson Grace, Regional Administrator U. S. Nuclear Regulatory Connaission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Re: Catawba Nuclear Station, Units 1 & 2 Docket No. 50-414
Dear Dr. Grace:
Pursuant to Technical Specifications 3.3.3.6 and 6.9.2, please find attached a Special Report concerning the inoperability of the Reactor Coolant Radiation Monitor (2 EMF-48).
Very truly yours, b.
lfg Hal B. Tucker RWO/51/slb Attachment xc: Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C.
20555 l
NRC Resident Inspector Catawba Nuclear Station 5 hdhg
- I PDR l
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r SPECIAL REPORT l
t On November 19,1986 2 EMF-48 (Reactor Coolant Rsdiation Monitor) tripped on a high radiation signal. A work request was written to investigate and repair the i
monitor. The cause of the monitor's inoperability was a contaminated sample tube.
On November 26, 1986 the sample tube was replaced, the EMF was recalibrated and declared operable.
t The monitor was inoperable for seven days, three hours, twenty-five minutes.
i Alternate methods of monitoring Reactor Coolant radiation were initiated within the required 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
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