What was found
DURING THE ACTUAL MAINTENANCE INSPECTION, IT WAS FOUND AT RH WING THE INBD MAIN FLAP BACKUP RIB 1 PN: 190-38021-002 AND RIB 2 PN: :190-38022-002 WITH CORROSION. DETAILS WERE SEND TO EMBRAER FOR APPROBAL UNDER ETD2021-190-015395 REV 0 DTD MAY 18, 2021, RIB 2 WAS LEFT AS IS, RIB 1 MUST BE REPLACED.