ML19225C279

LER 78-062/01T-1 on 781101:condensing Pots 2B21-D004A & B Not Installed Per Design,Resulting in 11.2 Inch Error in Calibr of 2B21-N017A-D Level Switches.Caused by Installation Design Error.Detail Drawings Corrected

ML19225C279
Person / Time
Site:	Hatch
Issue date:	07/18/1979
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19225C277	List: ML19225C276 ML19225C279
References
LER-78-062-01T, LER-78-62-1T, NUDOCS 7907260813
Download: ML19225C279 (1)

Text

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EVENT CESCRIPTION A OPACBA L C S ENCES

[oi21 i The installation dimensions of condensing oots 2B21-D004A and B were discovered not I ai2i l to be installed per design. The actual installatic .aused an 11.2 inch error in the l o12 l calibration of the 2821-N017A-D level switches. The switches were m higher than l 0 i, l intended which resulted in the RCIC and HPCI high i j trips exceeding the Tech Soec l o is requir ment of less than or equal to + 58 inches. (Teconical Specifications table r 3i> l 3.3.2-1) l oi4 1 l g 3 30 SY S 'E M CALSE CALSE COVP VALVE CCCE CCCE SLBCCCE COVpCNENT CCCE SLeCCCE SLBCCCE aial 5

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