ML19224D585

LER 79-013/03L-0 on 790412:during Test of Snubbers Many Found Inoperable Due to Unacceptable Lockup & Bleed Characteristics.Caused by Setpoint Drift,Dirty Oil & Clogged Valves.All Snubbers Repaired & Adjusted

ML19224D585
Person / Time
Site:	Fort Saint Vrain
Issue date:	07/03/1979
From:	Gahm J PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19224D582	List: ML19224D581 ML19224D584 ML19224D585
References
LER-79-013-03L, LER-79-13-3L, NUDOCS 7907120663
Download: ML19224D585 (1)

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[TTTl l .During functional test of hvdraulic shock sucotessors ( snubbe rs) .any were f ound to I a,3 l be inoperable. The snubbers had not been tested since installation and nust be 1 o 64 l assumed to have been inoperable while the reactor was at power contrarv to I.C0 4. 3.10 1 o,s jnubberswere found to be inopenble due to unacceptable lockuo and/or unacceptable l 0 is [ bleed characteris tics. Reportable per Fort S t. Vrain Technical Specification, Section t 317 l AC 7.5.2(b)2. Thr.re was o effect on pualic health and safety. l

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, lteristics was setpoin: drift, dirty oil, and clogged valves. These snubbers sre IT7- 1

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