05000325/LER-1979-083-03, /03L-0:on 791024,reading on Torus Level Instrument 1-CAC-LT-3342 Was Six Inches Low.Caused by Inaccurate Calibr Resulting from Debris in Sight Glass.Calibr Instruction Revised to Include Cleaning of Sight Glass

/03L-0:on 791024,reading on Torus Level Instrument 1-CAC-LT-3342 Was Six Inches Low.Caused by Inaccurate Calibr Resulting from Debris in Sight Glass.Calibr Instruction Revised to Include Cleaning of Sight Glass

ML19256F097
Person / Time
Site:	Brunswick
Issue date:	11/14/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19256F095	List: 05000325/LER-1979-083, Forwards LER 79-083/03L-0 05000325/LER-1979-083-03, /03L-0:on 791024,reading on Torus Level Instrument 1-CAC-LT-3342 Was Six Inches Low.Caused by Inaccurate Calibr Resulting from Debris in Sight Glass.Calibr Instruction Revised to Include Cleaning of Sight Glass
References
LER-79-083-03L-01, LER-79-83-3L-1, NUDOCS 7911210429
Download: ML19256F097 (2)

LER-1979-083, /03L-0:on 791024,reading on Torus Level Instrument 1-CAC-LT-3342 Was Six Inches Low.Caused by Inaccurate Calibr Resulting from Debris in Sight Glass.Calibr Instruction Revised to Include Cleaning of Sight Glass

Event date:
Report date:
3251979083R03 - NRC Website

text

U.S. NUCLEAR REGULATORY COMMISSION NRC PORM 366 87 77)

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8 60 61 OOCK ET NUMB ER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h Lo_Ld l During a normal surveillance tour of the Reactor Building, the auxiliary operator Al noticed that the torus level instrument 1-CAC-LT-3342, on the remote shutdown panel, l

was reading six inches low.

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44 47 CAU3E DESCRIPTION AND CORRECTIVE ACTIONS i

O l CAC-LTI-3342 had been calibrated inaccurately due to an erroneous sight glass reading. l The temporarv sight glass contained debris. The sight glass was replaced and the

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instrument was recalibrated and returned to service. The calibration instruction has; yl been revised to include a check of the sightglass for cleanliness before calibration l L'E l begins and to verify sighe glass level before and after calibration.

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NAME OF PREPARER

LER CONTINUATION -- RO# 1-79-83 Facility: BSEP Unit #1 Event Date 10-24-79 An Engineering Work Request has been written to install a permanent sight glass.

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