ML17266A110

LER 79-029/03L-0:on 790917,level Transmitter on Safety Injection Tank 1B1 Drifted Out of Calibr & Tank Level Dropped Below Tech Spec Limit.Cause Undetermined.Level Indicator Adjusted & Transmitter Recalibr

ML17266A110
Person / Time
Site:	Saint Lucie
Issue date:	10/17/1979
From:	Schoppman M FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML17207A526	List: ML17207A525 ML17266A110
References
CON-NRC LER-79-029-03L-02, LER-79-29-3L-2, NUDOCS 7911070554
Download: ML17266A110 (2)

Text

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LICENSEE EVENT REPORT CONTROI. SLOCIEI I I I >OI (PLEASE PRINT OR TYPE ALL REOUIREO INFORMATIONI

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$ 539 EVENT OAT'E 74 7$ REPORT OA a 30 EVENT OESCRIPTION ANO PROBASLE CONSEQUENCES +Io While o eratin at 100% ower the level transmitter on the 1Bl SIT drifted

~os out of calibration and the tank level dro ed below the limit specified by TS 3.5.1. A low-low level alarm was received from the fixed ca acitance

~0$ robe. The tank level was restored in accordance with TS 3.5.1. No n e ence e 1 ed from hi occurrence. This was the first

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o No s ecific cause Immediat action consisted of adjustin the level indicator in the control room based on level determined from the fixed ca acitance robe. The transmitter located inside the containment was recalibrated the following week during a scheduled outa e. No further action was .re uired.

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