ML19331D763

LER 80-061/03L-0:on 800728,leakage Discovered on C Charging Pump at Elbow Weld During Mode 1 Operation.Caused by Vibration.Defective Pipe Spool Piece Replaced & Hanger Installed to Reduce Vibration.Pump Operable After Repairs

ML19331D763
Person / Time
Site:	Arkansas Nuclear
Issue date:	08/27/1980
From:	Pendergraft R ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19331D755	List: ML19331D754 ML19331D763
References
LER-80-061-03L, LER-80-61-3L, NUDOCS 8009030546
Download: ML19331D763 (1)

Text

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?l7 I a l 01@ .o 7 . 60 63 DOC sL E T Nuwt E R EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES was discovered on the "C" charging pump ,

l t o i a ,1 During Mode 1 operation, a le to tal I suction oire at a 1 inch test line (Elbow Weld.) The "C" choraing oump i

,o,,,i was isolated to facilitute repair. "A" & "B" charging pumps remained op-1 in ist i era bl e . This occurrence is similar to LER's 50-368/79-031,80-019, and I t o is i 1 80-034. Reportable per Tech. Spec. 6.9.1.9.d. 1

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C AUSE DESCR# TION A**D CORREC flVE ACTIOP.S h l'io i LCause of occurrence is believed to be vibration induced. The pipe spool i 12 liiininen with tho dofort was renlared with a scheduls 160 nine and re-orien-ted to change the vibrational plane. A hanger was installed to reduce "A" & "B" charging pumps received the same repairs. "C" l rp;-) l the vibration. ,

[rg-) I charging pump was returned to operable status f allowing repairs. ,

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• ** 'o o , .. , ,o NAMI OF PREPARER Rex Pendergraft ,, 501/968-2519

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