On April 22-24, 2021, the 3-Days On-line "HIDA-8" International Conference "FAILURE, CRACKING, DAMAGE & LIFE ASSESSMENT IN HIGH TEMPERATURE PLANT" organized by ETD took place, during which Ewa Trzeszczyńska gave a speech prepared jointly with Jerzy Trzeszczyński, CEO entitled 'Conditional operation of boiler components working under creep conditions until replacement'.