ML20010G727

LER 81-139/03L-0:on 810812,loss of Water from Reactor Coolant Inventory Exceeded Tech Spec Limit for 4-h Period W/O Operations Knowledge.Caused by Failure to Isolate Reciprocating Charging Pump 1 Relief Valve Prior to Maint

ML20010G727
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
ML20010G720	List: ML20010G719 ML20010G727
References
LER-81-139-03L, LER-81-139-3L, NUDOCS 8109220458
Download: ML20010G727 (1)

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12 t a i IWhile in mode 2, as a result of maintenance action, a loss of water from the ,

y,.7. , Reactor Coolant (NC) inventory in excess of 1 GPM occurred without Operations' io..) ; knowledge for about f'ur hours. This violates T.S. 3.4.7.2 which is reportable; istel (pursuant to T.S.6.9.1.13(b). The drainage from the volume control tank never  ;

p 1;resulted in an unacceptable level of water in the tank, and did not seriously ,

12 i 7 ! Le*gallenne the Automafic Makeup System. Since at no time was the inventory of  ;

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liialIThe incident was the result of Operations' failure to adequately isolate the i i, ,, j t reciorocating charging pump #1 discharge line safety-relief valve before giving t,,,  ! maintenance clearance to work on it. Personnel were cautioned to thoroughly re-I

.g iview work requests for proper isolation and drainage action, and were reminded, that outlet of relief valves cannot be isolated from their discharge tanks by

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N/A @ I IIIIiiitifIel Nanas e, **uaman Phillip B. Nardoci (704) 373-7432 8109220458 810909 j69 SPDR ADOCK 05000'.cg p

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