05000346/LER-1978-046-03, /03L-1:on 780504,emergency Core Cooling Room Coil & Containment Air Cooler Outlet Check Valve SW-82 Found Inoperable.Caused by Rust in Top of Internals Check Valve. Internals Subsequently Cleaned

/03L-1:on 780504,emergency Core Cooling Room Coil & Containment Air Cooler Outlet Check Valve SW-82 Found Inoperable.Caused by Rust in Top of Internals Check Valve. Internals Subsequently Cleaned

ML20027A115
Person / Time
Site:	Davis Besse
Issue date:	05/30/1978
From:	David Brown TOLEDO EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20027A114	List: 05000346/LER-1978-046, Forwards LER 78-046/03L-1 & LER 78-069/03L-1 05000346/LER-1978-046-03, /03L-1:on 780504,emergency Core Cooling Room Coil & Containment Air Cooler Outlet Check Valve SW-82 Found Inoperable.Caused by Rust in Top of Internals Check Valve. Internals Subsequently Cleaned
References
LER-78-046-03L, LER-78-46-3L, NP-33-78-56, NUDOCS 7810120078
Download: ML20027A115 (1)

LER-1978-046, /03L-1:on 780504,emergency Core Cooling Room Coil & Containment Air Cooler Outlet Check Valve SW-82 Found Inoperable.Caused by Rust in Top of Internals Check Valve. Internals Subsequently Cleaned

Event date:
Report date:
3461978046R03 - NRC Website

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g l At 0200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br /> on May 4,1978 during the performance of the Service Water Sy it was found that Emergency Core Cooling Room Cooling Coil j

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and Containment Air Cooler 1-1 Outlet check Valve SW-82 was inoperable.

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JJ 4Q di 42 43 44 di CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h JJ The valve _J 1 The top of the internals of SW-82 were rusted oreventine oroper oceration.

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1 i l I was opened, the too internals cleaned, and the other valve components were visua l

The valve was successfully retested at 0545 hours0.00631 days <br />0.151 hours <br />9.011243e-4 weeks <br />2.073725e-4 months <br /> ;

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