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Forwards LER 99-007-01 re increasing failure rate of ESAS relays.Rept supplements preliminary info re determination of root cause & long term corrective actions.Changes made for supplement are indicated in bold typeface.

Accession Number: ML20211H484

Date Released: Wednesday, August 12, 2020

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• ML20211H478 - Forwards LER 99-007-01 re increasing failure rate of ESAS relays.Rept supplements preliminary info re determination of root cause & long term corrective actions.Changes made for supplement are indicated in bold typeface. (1 page(s), 8/20/1999)
• ML20211H487 - LER 99-007-00:on 990528,increasing failure rate of ESAS relays was noted.Caused by inadequate preventative maint. Long term plan established to address need to replace degraded relays & enhance maint activities. (10 page(s), 8/20/1999)