05000302/LER-1982-075, Forwards LER 82-075/03L-0.Detailed Event Analysis Encl

Forwards LER 82-075/03L-0.Detailed Event Analysis Encl

ML20028E045
Person / Time
Site:	Crystal River
Issue date:	01/13/1983
From:	Westafer G FLORIDA POWER CORP.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20028E046	List: 05000302/LER-1982-075, Forwards LER 82-075/03L-0.Detailed Event Analysis Encl 05000302/LER-1982-075-03, /03L-0:on 821215,during Cold Shutdown,Circuit Breaker on Control Complex Ventilation Radiation Monitor RMA-5 Tripped.Caused by Broken Pump Vane Binding Pump. Pump Replaced
References
3F-0183-06, 3F-183-6, NUDOCS 8301200296
Download: ML20028E045 (2)

LER-1982-075, Forwards LER 82-075/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
3021982075R00 - NRC Website

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Power COMPORAis0es January 13,1983

1. 3F-0183-06 Mr. James P. O'Reilly Regional Administrator, Region 11 U.S. Nuclear Regulatory Commission Office of Inspection & Enforcement 101 Marietta Street N.W., Suite 3100 Atlanta, Ga. 30303

Subject:

Crystal River Unit 3 Docket No. 50-302 Operating License No. DPR-72 Licensee Event Report No.82-075

Dear Mr. O'Reilly:

Enclosed please find Licensee Event Report No.82-075 and the attached supplementary information sheet, which are submitted in accordance with Technical Specification 6.9.1.9.b.

Very truly yours,

/

G. R. Westafer

Manager, Nuclear Licensing & Fuel Management DP/ mig d

Enclosure cc:

Document Control Desk U.S. Nuclear Regulatory Commission i

Washington, D.C. 20555 l

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1 8301200296 830113 8A PDR ADOCK 05000302 S

pyg General Office 3201 Thirty fourin street soutn. P O Box 14042. st Petersburg. Florida 33733 813-866-5151

SUPPLEMENTARY INFORMATION REPORT No:

50-302/82-075/03L-0 FACILITY:

Crystal River Unit #3 REPORT DATE:

January 13,1983 OCCURRENCE DATE:

December 15,1982 IDENTIFICATION OF OCCURRENCE:

The Control Complex Ventilation Radiation Monitor (RMA-5) required by Technical Specification 3.3.3.1 was inoperable.

CONDITIONS PRIOR TO OCCURRENCE:

MODE 5 (COLD SHUTDOWN)

DESCRIPTION OF OCCURRENCE:

At 1825 on December 15, 1982, it was discovered that the circuit breaker on RMA-5 tripped resulting in a loss of power to the monitor.

DESIGNATION OF APPARENT CAUSE:

This event occurred when the RMA-5 pump vane broke causing the pump to bind and subsequently tripping the supply breaker.

ANALYSIS OF OCCURRENCE:

The function of RMA-5 is to switch the Control Room Ventilation System to a Recirculation Mode upon high radiation signal. Therefore, the inoperability of this monitor does not impact off-site release (s) or the monitoring thereof, and thus has no direct impact on public health or safety.

CORRECTIVE ACTION

The Control Complex Ventilation System was placed in recirculation and the pump was replaced.

The pump was tested satisfactorily and operability was restored at 2115 on December 15,1982.

FAILURE DATA:

This is the first occurrence of this type for RMA-5 and the nineth event reported under this specification.

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