ML19329D542

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Notifies That Possible Deficiency Reported on 760504 Considered Reportable Deficiency.Fluid Leaks in Sightgage Area Found on Numerous Hydraulic Snubbers.Cause & Suitable Repair Being Investigated
ML19329D542
Person / Time
Site: Crystal River Duke Energy icon.png
Issue date: 06/21/1976
From: Rodgers J
FLORIDA POWER CORP.
To: Knuth D
Office of Nuclear Reactor Regulation
References
NUDOCS 8003160141
Download: ML19329D542 (1)


Text

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.Of2h ji YEAR Q

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{ <?n de/ W W Florida Power June 21, 1976 coa'oa^"o*

Mr.- Donald F.

Knuth, Director Directorate of Regulatory Operations U. S. Nuclear Regulatory Commission Washington, D.

C.

20545

Subject:

50-302 Crystal River Unit #3 De a r..Mr. Xnuth:

.In accordance with 10CFR50.55(e), we wish to advise y'od that the possible deficiency reported verbally to you on May 4, 1976, is now considered as being verified as a reportable deficiency.

Numerous Power Piping Company hydraulic snubbers ha re been identified as having fluid leaks in the area of the sightgage.

So far the leaks have been at one or more of the following locations :

1.

0-ring at the sightgage to reservoir fluid connections 2.

Seal at sightgage glass to sightgage housing fluid connections 3.

Threaded connections at sightgage glass to sightgage housing fluid connections Reason for leakage is considered to be one or more of the

,following:

1.

Improper 0-ring or seal material in the sightgage 2.

Overcompression of the 0-ring or seal 3.

Poor uorkmanship at reservoir connection All P.P.C. snubbers are suspect.

When the cause is determined and a suitable repair established it will be applied to all P.P.C. snubbers.

Possible fixes are:

1.

Replacement of sightgage 2.

Deletion of sightgage, using a dipstick 3.

Other Very truly yours, cc: N. C. Moseley ki SScc"n" f

'W 4/[,

cc: M. H. Kleinman J. T. Rodgers JTR/nm 8003160141 3 Assistant vice President.