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Forwards LER 93-017-00 re extension of feedwater isolation bypass valve positioner & solenoid beyond qualification life.Info re valve,thought to be partially open since Apr 1992,included in addl info section of LER,per request.

Accession Number: ML20045E151

Date Released: Friday, February 28, 2020

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• ML20045E150 - Forwards LER 93-017-00 re extension of feedwater isolation bypass valve positioner & solenoid beyond qualification life.Info re valve,thought to be partially open since Apr 1992,included in addl info section of LER,per request. (2 page(s), 6/25/1993)
• ML20045E153 - LER 93-017-00:on 930527,determined that feedwater isolation bypass valves inoperable since pneumatic positioner & solenoids remained in svc beyond qualified life.Caused by incorrect interpretation of design documents.Mod underway. (8 page(s), 6/25/1993)