ML19225C787

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Notifies of RO 50-321/1979-43 on 790629:radwaste Sump Discharge Piping Not Adequately Installed Per Seismic Class I Requirements.Caused by Design Error.Piping & Design Deficiency Will Be Modified
ML19225C787
Person / Time
Site: Hatch Southern Nuclear icon.png
Issue date: 06/29/1979
From: Manry M
GEORGIA POWER CO.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 7908020444
Download: ML19225C787 (2)


Text

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Whila perfomino concrete expansion anchor 'surveillante evaluation, it was de t e mi n c rf that the t es*was te sua.c discharoe piping between the drmell pen-etrationt and the tecnnd i<.nlati.n 9 valves is not supp: rted per seisW c C l a s s. I tranis en nts. The rrattor was in the refueling rrJde at this tirr. fint. ore or Occurrence: The Unit 1 piping snetifttation did not specify this oire as Seis-it Clers

1. Af ter reviariing the piping supports as presently installed, it hac been de'en".ined that this piping was not adequately installed for the postulet-ed seltric event.

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1hi:- ci tut t ent e was caused by desinn error _ Supple ontal cor rer.t ive At t ion: This pipinn will be analyzed and supported seisrically. The design and ir.- pier -ntation will be acco olished during the current refculing out.ane. h

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                          .Jpf.ti fic ation for Continued Operation:

flot oppli catile. outage. This design deficiency will be rTsolved during the current

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