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Forwards LER 98-001-02 re discovery of concrete degradation in DG exhaust stacks.Completion date for implementation of new design is being changed from 981015 to 1115 due to design & installation problems.

Accession Number: ML20154L887

Date Released: Tuesday, June 16, 2020

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• ML20154L884 - Forwards LER 98-001-02 re discovery of concrete degradation in DG exhaust stacks.Completion date for implementation of new design is being changed from 981015 to 1115 due to design & installation problems. (1 page(s), 10/13/1998)
• ML20154L894 - LER 98-001-02:on 980107,concrete degradation discovered in DG exhaust barriers.Caused by differential rate of expansion & contraction between concrete & rebar.Will implement new design,containing steel guard pipe,by 981115. (5 page(s), 10/13/1998)