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LER 76-001/01P:on 760102,high drywell pressure switch RV46B tripped at 2.75 psig.Caused by failed mercury switch bulb.Bulb replaced.W/760112 ltr.

Accession Number: ML20090C691

Date Released: Monday, April 13, 2020

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• ML20090C688 - LER 76-001/01P:on 760102,high drywell pressure switch RV46B tripped at 2.75 psig.Caused by failed mercury switch bulb.Bulb replaced.W/760112 ltr. (2 page(s), 1/12/1976)
• ML20090C692 - LER 76-001/01P:on 760102,high drywell pressure switches associated w/core spray actuation failed to trip at value equal to or less than 2 psig.Caused by component failure. Mercury switch bulb replaced.W/760105 ltr. (3 page(s), 1/5/1976)