05000325/LER-1981-038-03, /03L-0:on 810216,diesel Generator 2 Start Air Pressure Low Alarm Annunciated on Control Panel.Caused by 480-volt Breakers for Both Air Compressors for Generator in Off Position.Breakers Placed in on Position

/03L-0:on 810216,diesel Generator 2 Start Air Pressure Low Alarm Annunciated on Control Panel.Caused by 480-volt Breakers for Both Air Compressors for Generator in Off Position.Breakers Placed in on Position

ML19343C547
Person / Time
Site:	Brunswick
Issue date:	03/18/1981
From:	Poulk R CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19343C540	List: 05000325/LER-1981-038, Forwards LER 81-038/03L-0 05000325/LER-1981-038-03, /03L-0:on 810216,diesel Generator 2 Start Air Pressure Low Alarm Annunciated on Control Panel.Caused by 480-volt Breakers for Both Air Compressors for Generator in Off Position.Breakers Placed in on Position
References
LER-81-038-03L, LER-81-38-3L, NUDOCS 8103240465
Download: ML19343C547 (2)

LER-1981-038, /03L-0:on 810216,diesel Generator 2 Start Air Pressure Low Alarm Annunciated on Control Panel.Caused by 480-volt Breakers for Both Air Compressors for Generator in Off Position.Breakers Placed in on Position

Event date:
Report date:
3251981038R03 - NRC Website

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LICENSEE EVENT REPORT

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3 60 64 OOCKET NUM8ER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT OESCRIPTION AND PROBA8LE CONSEQUENCES h

@ lDurinst normal plant operation, a " Diesel Generator #2 Start Air Pressure Low" l

O 2 l alarm annunciated on the control panel.

Diesel Generator No. 2 was declared I

@ l inoperable. The health and safety of the public was not affected by this event.

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33 34 35 36 31 40 43 42 43 44 47 CAUSE DESCRIPTION ANDCORRECTIVE ACTIONS h Q lAn investigation revealed that the 480 volt breakers for both air comoressors for I

["TTTI IDiesel Generator No. 2 were in the "off" position.

Both breakers were ir~-ediatelv l

lplaced in the "On" position and the air pressure was automatically restored to I

i 7 g l normal.- A reason for these breakers being in the "off" position could not be deter-I Imined.

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LER ATTAC10!ENT - RO #1-81-38 Facility: BSEP Unit No. 1 Event Date: 2-16-81 An' investigation was conducted in an attempt to determine how and when the breakers were de-energized. This investigation included a review of periodic tests performed on the system, work authorizations completed on the system or in the general work area, and general construction work that may have been in progress in the area. The investigation could not determine a cause for this event. As this is the first time this has occurred and the cause was indeterminate, this is considered an isolated event.

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