ML20009G011

LER 81-033/01T-0:on 810403,discovered Ductwork Inside of Inside Isolation Valves for Containment Purge Sys Not Constructed of 10-gauge Stainless Steel Per Fsar.Caused by Design Drawing Details Not Specifying Matl

ML20009G011
Person / Time
Site:	McGuire
Issue date:	04/17/1981
From:	Ouellette R DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009G008	List: ML20009G007 ML20009G011
References
LER-81-033-01T, LER-81-33-1T, NUDOCS 8108030237
Download: ML20009G011 (1)

Text

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rusa I While in Mode 5; _ initial fuel loading, it was discovered that the ductworkl El inefan nf cho incian i c n 1 n t-i nn vilvoc fnr rho coneninment ource system was i Gl not constructed of 10 eauge stainless steel as specified in the FSAR. Existf(ng a s I m, _t. ,,,,3a nncc4w37 ,n11,nco ,,nane Tora cnndfrinnn- however since puree !

E Isystem oneration is limited to 90 hours0.00104 days <br />0.025 hours <br />1.488095e-4 weeks <br />3.4245e-5 months <br /> per year above Mode 4 and the fact i ITT71 I that the deficiency was discovered prior to operation the health and safety ,

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Q[,o,,j l Desien drawing details did not specify that 10 gauge stainless steel be ,

, g iused in fabricating this ductwork. The containment isolation valves in the ,

m I conta ..nment purge system were closed. The ductwork will be replaced with 10 ,

gl gauge stainless steel prior to initial critically. ,

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