United States Nuclear Regulatory Commission - Protecting People and the Environment

ACCESSION #: 9608220045

Anchor/Darling
Valve Company  o  Williamsport, PA 17701

W. G. KNECHT
  Technical Director

July 25, 1996


Director - Office of Inspection & Enforcement
U. S. Nuclear Regulatory Commission
Washington DC 20555

Subject:  10 CFR 21 Reportable Incident

Gentlemen:

We have been notified by FP&L that a 2" 1878 stainless steel, piston
check valve installed in a charging system failed to close with reverse
flow.

We are evaluating this incident to determine the cause of this failure
and also the commonality with other similar designed valves.

We will notify other customers which have been furnished similar
equipment to inform them of this potential problem.

Should you require additional information regarding this matter, please
contact Mr. Floyd Bensinger our Engineering Manager or the writer.


Sincerely,

ANCHOR/DARLING VALVE COMPANY


William G. Knecht
Technical Director

WGKjs

cc:  J. J. Chappell      G. W. Knieser
     F. A. Bensinger     M. O. Miller
     H. H. Wescott       F. Velez
     J. M. Wingate       J. R. Tarbutton


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