ML19276G783

LER 79-068/03L-0 on 790723:post-maint Testing of Core Flood Tank Vent Valves CFV-15 & 16 Not Completed Prior to Return to Svc.Caused by Defective Procedures.Procedures Revised

ML19276G783
Person / Time
Site:	Crystal River
Issue date:	08/15/1979
From:	Cooper J FLORIDA POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19276G782	List: ML19276G781 ML19276G783
References
LER-79-068-03L, LER-79-68-3L, NUDOCS 7908270450
Download: ML19276G783 (2)

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, , , tank vent valves CFV-15, and CFV-16 had not bacn co- 'eted prior to returning ,

those valves to service. This creates an event contrary to Technical Specifi-l cation 4.6.3.1. Redundancy NA. No effect upon the plant or general public as, o ts Ithe plant remained in , n,fo shuranu, corAdefnn '% 4 c 4e A cfree ncci'er d o , i of this type reported. I I

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, , lThe cause of this event is attributed to defective procedures. The Ouarterly I include provisions for testine t g [ Cycling of Valves Procedure SP-370 did not CFV-15 and CFV-16. A revision to SP-370 has been implemented tc include CFV-15, g ,and CFV-16. Both of these valves were returned to service at 1520 followine I

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(SEE ATTA ED SUPPLEMENTARY INFORMATION SEkET) 79082704/fo

SUPPLEMENTARY INFORMATION Report No.: 50-302/79-068/03L-0 Focility: Crystal River Unit #3 Report Date: 15 August 1979 Occurrence Date: 23 July 1979 Identification of Occurrence:

Failure to perform post maintenance testing of core flood valves CFV-15 and CFV-16 contrary to Technical Specification 4.6.3.1.1.

Conditions Prior to Occurrence:

Mode 4 hot shutdown.

Description of Occurrence:

At 1630 it was reported that post maintenance testing had not been completed on CFV-15 and CFV-16 prior to returning the valves to service. Further investigation revealed that CFV-15 and 16 were tested satisfactorily following main-tenance on 21 July 1979, but procedural controls were not available to document the testing results. CFV-15 and 16 were successfully retested per an amended Quarterly Cycling of Valves Procedure SP-370, and returned to service at 1520 on 23 July 1979.

Designation of Apparent Cause:

The cause of this event is attributed to defective procedures.

SP-370 did not contain provisions for testing CFV-15 and 16.

Analysis of Occurrence:

No effect upon the plant or general public as the plant remained in a safe shutdown condition.

Corrective Action:

A revision has been implemented to include CFV-15 and CFV-16 in Quarterly Cycling of Valves Procedure SP-370.

Failure Data:

This is the first occurrence of this type reported.

/rc