What was found
CORROSION ON MAIN DOOR LOWER BEAM FWD AND AFT ESCAPE SLIDE FITTING ATTACH POINTS HOLES (2 EACH), AT THE EDGE OF COUNTERSINK AS MARKED. (C CHECK) RO 3/30/2020 .REMOVED AND REPLACED MAIN PAX DOOR LOWER BEAM. REF EMB175 SRM, NO WIEGHT CHANGED DUE TO REPLACEING THE MAIN DOOR LOWER THRESHOLD BEAM