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Abnormal Occurrence 50-289/75-19:on 750618,variable low reactor coolant sys pressure trip setpoints less conservative than Tech Specs.Caused by channel C trip setpoint out of calibr due to instrument drift.

Accession Number: ML19210A238

Date Released: Monday, August 12, 2019

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• ML19210A237 - Abnormal Occurrence 50-289/75-19:on 750618,variable low reactor coolant sys pressure trip setpoints less conservative than Tech Specs.Caused by channel C trip setpoint out of calibr due to instrument drift. (4 page(s), 6/27/1975)
• ML19210A243 - Abnormal Occurrence 75-19:on 750618,less conservative variable low reactor coolant sys pressure trip setpoint for one channel of reactor protection sys violated Tech Specs. Caused by instrument drift for channel C setpoint calibr. (1 page(s), 6/19/1975)