05000302/LER-1981-007-03, /03L-0:on 810126,radiation Monitor RM-A5 Failed to Restart After Filter Change.Caused by Blown Fuse.Fuse Replaced

/03L-0:on 810126,radiation Monitor RM-A5 Failed to Restart After Filter Change.Caused by Blown Fuse.Fuse Replaced

ML20003C349
Person / Time
Site:	Crystal River
Issue date:	02/23/1981
From:	Hernandez V FLORIDA POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20003C348	List: 05000302/LER-1981-007, Forwards LER 81-007/03L-0 05000302/LER-1981-007-03, /03L-0:on 810126,radiation Monitor RM-A5 Failed to Restart After Filter Change.Caused by Blown Fuse.Fuse Replaced
References
LER-81-007-03L, LER-81-7-3L, NUDOCS 8102270786
Download: ML20003C349 (2)

LER-1981-007, /03L-0:on 810126,radiation Monitor RM-A5 Failed to Restart After Filter Change.Caused by Blown Fuse.Fuse Replaced

Event date:
Report date:
3021981007R03 - NRC Website

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SUPPLEMENTARY INFORMATION Report No.:

50-302/81-007/03L-0 Facility:

Crystal River Unit 3 Report Date:

February 23, 1981 Occurrence Date:

January 26, 1981 Identification of Occurrence:

Failure of RM-A5 to start contrary to Technical Specification 3.7.7.1.

Conditions Prior to Occurrence:

Mode 1 power operation. (99%)

Description of Occurrence:

At 1000 hours0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br /> after routine filter change Radiation Monitor RM-A5 would not restart.

Control Complex ventilation was placed in Emergency Mode full recirculation and maintenance was initiated. Operability was restored at 1400.

Designation of Apparent Cause:

The cause of this event is attributed to a blown fuse.

Analysis of Occurrence:

there' was no effect upon the hea'.th or safety of the general public.

Corrective Action

No fault was discovered in the circuit. The fuse was replaced and operability was restored. No further corrective action deemed necessary.

Failure Data:

This was the first occurrence of this type, the fourth oc-l currence for RM-A5 and -the sixth report under thi, Specifica-tion.

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