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Forwards LER 89-007-02 re allowable closure times for control room ventilation isolation dampers exceeded during test.Rev 1 submitted on 891013 incorrectly reported that changes effected for procedure.Rev 2 corrects mis-statement.

Accession Number: ML20033E134

Date Released: Friday, October 25, 2024

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• ML20033E181 - Forwards LER 89-007-02 re allowable closure times for control room ventilation isolation dampers exceeded during test.Rev 1 submitted on 891013 incorrectly reported that changes effected for procedure.Rev 2 corrects mis-statement. (1 page(s), 2/21/1990)
• ML20033E133 - LER 89-007-02:on 890406,discovered that isolation dampers in control room ventilation sys did not close in time required. Probably caused by pressure switches incorrectly set during installation.Test procedure changed. (5 page(s), 2/21/1990)