What was found
**SUPPLEMENTAL SDR**FAULT: ZONE 800, STR, RH FUSELAGE, AFT CARGO DOOR CUTOUT, INNER/LOWER SIDE, HAS SEAL RETAINER DAMAGED. DOT 103-20.INSPECTED AND VERIFIED REMOVAL OF LOWER DOOR SILL AND DISPLACEMENT OF LOWER SEAL ON AFT CARGO DOOR.CLEANED AREA PER SOPM 20-30-03 (OLD SEALANT REMOVED) FROM LOWER SILL AND ANGLE THAT HOLD THE SEAL RETAINER.INSTALLED LOWER SEAL + SEAL RETAINER IAW B757-200-SRM 51-40-02-OG. REQUEST OK TO REINSTALL LOWER SILL COVER.