05000364/LER-1982-049, Corrected LER 82-049/03L-0:on 821201,containment Atmosphere Activity Monitor R-11 & R-12 Declared Inoperable When Vacuum Pump Tripped Due to Erroneous High Flow Signal. Caused by Defective High Flow Relay.Relay Replaced

Corrected LER 82-049/03L-0:on 821201,containment Atmosphere Activity Monitor R-11 & R-12 Declared Inoperable When Vacuum Pump Tripped Due to Erroneous High Flow Signal. Caused by Defective High Flow Relay.Relay Replaced

ML20064F486
Person / Time
Site:	Farley
Issue date:	12/23/1982
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20064F452	List: 05000364/LER-1982-047, Corrected LER 82-047/03X-1:on 821124,determined FNP-2-STP-63.0 (Area Temp Monitoring) Not Performing Per Tech Specs.Caused by Personnel Error.Procedure FNP-2-STP-1.0 Revised.Area Temp Monitoring Completed 05000364/LER-1982-049, Corrected LER 82-049/03L-0:on 821201,containment Atmosphere Activity Monitor R-11 & R-12 Declared Inoperable When Vacuum Pump Tripped Due to Erroneous High Flow Signal. Caused by Defective High Flow Relay.Relay Replaced ML20064F449
References
LER-82-049-03L-02, LER-82-49-3L-2, NUDOCS 8301060375
Download: ML20064F486 (1)

LER-2082-049, Corrected LER 82-049/03L-0:on 821201,containment Atmosphere Activity Monitor R-11 & R-12 Declared Inoperable When Vacuum Pump Tripped Due to Erroneous High Flow Signal. Caused by Defective High Flow Relay.Relay Replaced

Event date:
Report date:
3642082049R00 - NRC Website

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7 5 GO Si ooCKkT NU'/kER EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h l o 12 J l At 0830 on 12/01/82, Containment Atmosphere Activity Monitor R-11 (particulate monitor) I o I and R-12 (gaseous monitor) were declared inoperable when the vacuum pump tripped due to I I

g ian erroneous high flow signal. Tech. Spec. 3.4.7.1 requires R-11 and R-12 to be oper-Health / safely of I o $ lable. Tech. Spec. 3.4.7.1 action statement requirements were met.

@ lthe public was not affected. Similar occurrences were reported in LER 82-038/03L-0 and 1 ITTTI l LER 82-025/03L-0.

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' 11 lolIThis event was attributed'to a defective hieh flow Telay. The relay was replaced and _

1 Ii ii l lR-11' and R-12 were returned to service at 1000 on 12/01/82.

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