05000302/LER-1981-017, Forwards LER 81-017/03L-0.Detailed Event Analysis Encl

Forwards LER 81-017/03L-0.Detailed Event Analysis Encl

ML19345G564
Person / Time
Site:	Crystal River
Issue date:	04/02/1981
From:	Baynard P FLORIDA POWER CORP.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19345G565	List: 05000302/LER-1981-017, Forwards LER 81-017/03L-0.Detailed Event Analysis Encl 05000302/LER-1981-017-03, /03L-0:on 810304,during Testing,Discovered That Containment Isolation Valve CFV-16 Would Not Move from mid-position.Caused by Valve Binding on Bushing Due to Insufficient Lubrication
References
CS-81-081, CS-81-81, NUDOCS 8104070532
Download: ML19345G564 (2)

LER-1981-017, Forwards LER 81-017/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
3021981017R00 - NRC Website

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Mr. J. P. O'Reilly, Director Docket No. 50-302 U.S. Nuclear Regulatory Commission Licensee No. DPR-72 Office of Inspection & Enforcement LER No. 81-017/03L-0 101 Marietta St., Suite 3100 Crystal River Unit #3 Atlanta, GA 30303 Occurrence Date:

March 4, 1981

Dear Mr. O'Reilly:

Enclosed please find Licensee Event Report 81-017/03L-0 and the attached suppleinentary information sheet, which are submitted in accordance with Technical Specification 6.9.1.9.b.

Should there be any questions, please contact us.

Very truly yours, FLORIDA POWER CORPORATION b.

l Nuclear Plant Manager Patsy Y. Baynard Manager

' Nuclear Support Services JC/rc l

8104e10hh General Office 320s in.rty-fourin street soutn. P O Box 14042. st Petersburg Florca 33733 e 813 - 866 5151 -

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SUPPLEMENTARY INFORMATION Report No.:

50-302/81-017/03L-0 Facility:

Crystal River Unit 3 R: port Date; APRIL 2,1981 Occurrence Date:

4 March 1981 Id:ntification of Occurrence:

Containment Isolation Valve CFV-16 inoperable contrary to Technical Specification 3.6.3.1.

Conditions Prior to Occurrence:

Mode 3 hot standby.

Description of Occurrence:

At 2250 while performing 0P-401, Core Flooding System, it was discovered that Containment Isolation Valve CFV-lC, Core Flooding Tank 3A Vent to Waste Gas Decay Tank, would not move from mid position. At 0245 on 5 March CFV-16 was isolated and maintenance was initiated. The valve was returned to operability at 0500 on 6 March after satisfactory ccapletion of SP-370, Quarterly Cycling of Valves.

Designation of Apparent Cause:

The causi of this event is attributed to the valve stem binding on the bushing due to insufficient lubrication.

Analysis of Occurrence:

There was no effect upon the health or safety of the general public.

Corrective Action

The valve stem and bushing were replaced and the valve was repacked.

Stroke and leak tests completed satisfactory per surveillance re-quirements. All limitorque isolation valves inside containment have been lubricated and will be placed on the plant lubrication program.

Failure Data:

This' is.the first occurrence of CFV-16 inoperable and the thirty-fourth event. reported under this Specification.

-/rc: