05000348/LER-1980-061-01, /01T-0:on 801104,fire Protection Water Tanks a & B Fell Below Tech Spec Min Level During Flush on Unit 2 Fire Header.Caused by Equipment Operator Being Placed on Emergency Job & Missing Reading.Tanks Refilled

/01T-0:on 801104,fire Protection Water Tanks a & B Fell Below Tech Spec Min Level During Flush on Unit 2 Fire Header.Caused by Equipment Operator Being Placed on Emergency Job & Missing Reading.Tanks Refilled

ML20002A772
Person / Time
Site:	Farley
Issue date:	11/17/1980
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20002A771	List: 05000348/LER-1980-061-01, /01T-0:on 801104,fire Protection Water Tanks a & B Fell Below Tech Spec Min Level During Flush on Unit 2 Fire Header.Caused by Equipment Operator Being Placed on Emergency Job & Missing Reading.Tanks Refilled 05000348/LER-1980-062-03, /03L-0:on 801017,diesel Generator Failed to Reach Rated Voltage within Tech Spec Time Limit,Voltage Could Not Be Controlled from Emergency Power Board & B1F Sequencer Step Six Was Below Setpoint.Cause Not Determined ML20002A770
References
LER-80-061-01T, LER-80-61-1T, NUDOCS 8011210506
Download: ML20002A772 (2)

LER-1980-061, /01T-0:on 801104,fire Protection Water Tanks a & B Fell Below Tech Spec Min Level During Flush on Unit 2 Fire Header.Caused by Equipment Operator Being Placed on Emergency Job & Missing Reading.Tanks Refilled

Event date:
Report date:
3481980061R01 - NRC Website

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8 60 68 cocg gT peuwe tM Gd G3 EvtrerQATE 74 7S RE7oRfDATE 80 EVENT DESCRIPTION AND PROSA8LE CONSEQUENCES o 2 l As a result of nerforming a flush on the Unit 2 fire header at approximately 2020 on

.I l 11/4/80 the Fire Protection Wat'er Tanks A and B level fell to 231. 297 gallons each.

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w 3 l Tech. Spec. 3.7.11.1.b requires a minimum level of 250.000 gallons in each tank. The

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g l flush'was immediately terminated. Tech. Spec. 3.7.11.1.b action statement requ'irementsy

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The health and safety of the 'public were not affected. A similar occurrenceg a 7 I was reported'in LER 79-043/01T-0,'

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lZ l9 l9l9.lr CAUSE DESCRIPTION AND CCMTIECTIVE ACTIONS h U to_J l Ocarations oersonnel were aware of the decreasing tank levels due to a. fire protection i Q l system flush. The eouipment operator missed the 4:00 PM reading due to his Being l

l placed on an escrgency job. This took four hours to cdrrect and when the E.0, checked g i _g] ene tank level it was below the Tech. Spec. level. The flush was terminated and the' g

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.distracted to the point of. missing important readings.

A design change to adjust the low level setpoint above the Tech. Spec. level has been submitted.

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