What was found
MCN - DURING C4 CHECK DISCOVERED CORROSION ON 2 FASTENER HOLES AT THE AFT END OF THE BULK CARGO DOOR CUTOUT, LOWER SILL BEAM AT FS 62 AND STR 38R. CORROSION WAS FOUND TO BE OUT OF LIMITS IAW AIRBUS 320 SRM 53-41-49 FIG 203. MAINTENANCE REMOVED DAMAGE FROM THE BULK CARGO DOOR SILL BEAM IAW AIRBUS 320 SRM 53-41-49 FIG 203. FABRICATED REPAIR DOUBLER AND FILLER IAW AIRBUS 320 SRM 53-41-49 FIG 203. INSTALLED FABRICATED REPAIR PARTS ON THE BULK CARGO DOOR LOWER SILL BEAM AT FR 62 AND STR 38R IAW AIRBUS 320 SRM 53-41-49.