05000335/LER-1981-040-03, /03L-0:on 810818,engineered Safeguards Sys Channel a Containment Pressure Setpoints for Safety Injection & Containment Isolation & Spray Found Out of Tolerance in Nonconservative Direction.Caused by Instrument Drift

/03L-0:on 810818,engineered Safeguards Sys Channel a Containment Pressure Setpoints for Safety Injection & Containment Isolation & Spray Found Out of Tolerance in Nonconservative Direction.Caused by Instrument Drift

ML20010H529
Person / Time
Site:	Saint Lucie
Issue date:	09/16/1981
From:	Pace P FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20010H524	List: 05000335/LER-1981-040, Forwards LER 81-040/03L-0 05000335/LER-1981-040-03, /03L-0:on 810818,engineered Safeguards Sys Channel a Containment Pressure Setpoints for Safety Injection & Containment Isolation & Spray Found Out of Tolerance in Nonconservative Direction.Caused by Instrument Drift
References
LER-81-040-03L, LER-81-40-3L, NUDOCS 8109240575
Download: ML20010H529 (1)

LER-1981-040, /03L-0:on 810818,engineered Safeguards Sys Channel a Containment Pressure Setpoints for Safety Injection & Containment Isolation & Spray Found Out of Tolerance in Nonconservative Direction.Caused by Instrument Drift

Event date:
Report date:
3351981040R03 - NRC Website

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J i o 12 i I DURING NORMAL FULL POWER OPERATION THE SETPOINTS FOR ENGINEERED SAFEGUARDS I ggg i SYSTEM CHANNEL "A" CONT. PRESS. WERE FOUND TO BE OUT OF TOLERANCE IN THE I

NON-CONSERVATIVE DIRECTION. THE SETPOINTS WERE READJUSTED TO THE DESIRED i

i,,,, i VALUES.

DURING THIS EVENT THE THREE OTHER CONT. PRESS. CHANNELS WERE IN i

ei OPERATION AT ALL TIMES WITH THEIR SETPOINTS IN SPECIFICATION. THE HEALTH nn,i g, AND SAFETY OF THE PUBLIC WAS NOT AFFECTED BY THIS EVENT. THIS IS THE THIRD, OCCURRENCE OF CONT. PRESS. SETPOINT DRIFT. SEE LER#76-17 AND #81-33.

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