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Forwards Rev 1 to LER 89-016 to correct event date on Page 1.Event due to failure of safety injection block/unblock switch rendering automatic features of both trains inoperable.Event also reported per Part 21.

Accession Number: ML17261A940

Date Released: Monday, April 30, 2018

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• ML17261A939 - Forwards Rev 1 to LER 89-016 to correct event date on Page 1.Event due to failure of safety injection block/unblock switch rendering automatic features of both trains inoperable.Event also reported per Part 21. (2 page(s), 1/26/1990)
• ML17261A941 - LER 89-016-01:on 891117,engineering evaluation of 891220 potential single failure of safety injection block/unblock switch completed.Caused by design error during initial plant const.Pluger position verified.Also reported per Part 21. (9 page(s), 1/26/1990)