ML20010G971

LER 81-138/03L-0:on 810811,tubing Going from Discharge Line of Train a Nuclear Svc Water Rn Sys Pump to Inboard Pump Seals Discovered Leaking Due to Loose Fitting,Rendering Pump Inoperable.Cause Unknown.Fitting Tightened

ML20010G971
Person / Time
Site:	McGuire
Issue date:	09/09/1981
From:	Nardoci P DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20010G965	List: ML20010G964 ML20010G971
References
LER-81-138-03L, LER-81-138-3L, NUDOCS 8109220725
Download: ML20010G971 (1)

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to62i lWhile in mode 2, routine surveillance discovered that the tubing going from the;

,,, j discharge line of the Train "A" nuclear service water system (RN) pump to the

o .;t n-board i pump seals was leaking. The pump was declared inoperable per T.S.3.7.4,

,,,,, ,which is reportable pursuant to T.S. 6.9.1.13(b). Since the redundant Train "B" m jof the RN system was available and operable while Train "A" was out of service,,

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,,3,,fhetubingwasleakingbecause@oneofthefittingswasnot sufficiently attached.

, , , , ,The ferrule on the tubing made it appear that the fitting had not been suffi- ,

g piently tightened the last time it was replaced. However, it is unknown how the; tubing came loose because it was not leaking previously. The tubing was rein- ,

,,,,, ptalled and the fitting at the pump seals inlet side tightened. ,

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