05000324/LER-1979-066-03, /03L-0:on 790731,while Working on Ref Leg of Torus Level Instrument CAC-LT-3342,CAC-LT-2601 Instrument Drifted Out of tolerance.CAC-LT-2601 Also Malfunctioned.Caused by Air Trapped in Sensing Lines.Instruments Recalibr

/03L-0:on 790731,while Working on Ref Leg of Torus Level Instrument CAC-LT-3342,CAC-LT-2601 Instrument Drifted Out of tolerance.CAC-LT-2601 Also Malfunctioned.Caused by Air Trapped in Sensing Lines.Instruments Recalibr

ML19207C029
Person / Time
Site:	Brunswick
Issue date:	08/30/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19207C022	List: 05000324/LER-1979-066, Forwards LER 79-066/03L-0 05000324/LER-1979-066-03, /03L-0:on 790731,while Working on Ref Leg of Torus Level Instrument CAC-LT-3342,CAC-LT-2601 Instrument Drifted Out of tolerance.CAC-LT-2601 Also Malfunctioned.Caused by Air Trapped in Sensing Lines.Instruments Recalibr
References
LER-79-066-03L, LER-79-66-3L, NUDOCS 7909060329
Download: ML19207C029 (2)

LER-1979-066, /03L-0:on 790731,while Working on Ref Leg of Torus Level Instrument CAC-LT-3342,CAC-LT-2601 Instrument Drifted Out of tolerance.CAC-LT-2601 Also Malfunctioned.Caused by Air Trapped in Sensing Lines.Instruments Recalibr

Event date:
Report date:
3241979066R03 - NRC Website

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LER CONTINUATION - ROP 2-79-066 Facility:

BSEP Unit No. 2 Event Date:

7-31-79 A correct calibration range..as established, the 2601 and 3342 instruments were calibrated, and the air was removed from the sensing lines by backflushing the lines and letting them settle for 24 hoi s.

All level f.nstruments were compared and agreed at this time.

The 2602 had been backflushed during an earlier cali-bration, therefore, was not required at this time.

Engineering b'ork Reques t 79-465 has been written to consolicate these and other problems noted with the torus level sys ten.

The 2601 and 2602 instruments are being calibrated on a monthly basis and the 3342 instrument is being added to the sarae preventive maintenance program. Other than the out of tolerance level, this problem is common to both units.

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