05000327/LER-1980-165-03, /03L-0:on 801014,essential Raw Cooling Water Monitors O-RE-90-134 & -141 Declared Inoperable.Caused by Auxiliary Feedwater Sys Header Pulsations Causing Pressure Switches to Chatter.Snubbers Added

/03L-0:on 801014,essential Raw Cooling Water Monitors O-RE-90-134 & -141 Declared Inoperable.Caused by Auxiliary Feedwater Sys Header Pulsations Causing Pressure Switches to Chatter.Snubbers Added

ML19339C587
Person / Time
Site:	Sequoyah
Issue date:	11/12/1980
From:	Cottle W, Wilkey A TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19339C579	List: 05000327/LER-1980-165, Forwards LER 80-165/03L-0 05000327/LER-1980-165-03, /03L-0:on 801014,essential Raw Cooling Water Monitors O-RE-90-134 & -141 Declared Inoperable.Caused by Auxiliary Feedwater Sys Header Pulsations Causing Pressure Switches to Chatter.Snubbers Added
References
LER-80-165-03L, LER-80-165-3L, NUDOCS 8011180644
Download: ML19339C587 (1)

LER-1980-165, /03L-0:on 801014,essential Raw Cooling Water Monitors O-RE-90-134 & -141 Declared Inoperable.Caused by Auxiliary Feedwater Sys Header Pulsations Causing Pressure Switches to Chatter.Snubbers Added

Event date:
Report date:
3271980165R03 - NRC Website

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I M i There was no danger to the health and safety of the public.

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W l This prodiiced electrical disturbances which caused radiation monitors to spike.

g l Snubbers were added to pressure switches to suppress the pressure pulsations.

t+1al IEffectiveness of snubbers will be evaluated during next unit startup.

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Name of Preparer W. T. Cottle/A M W1.lkey Phone 615-et t 8261 59 666W M

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