What was found
MCN - MAJOR REPAIR - DURING C-04 CHECK GALVANIC CORROSION WAS FOUND AT 3 AREAS ON UPPER SURFACE OF THE AFT BULK CARGO DOOR SILL FROM BS 2829.6 TO 2882.9. MAINTENANCE REMOVED CORROSION AND FOUND MATERIAL LOSS TO BE OUT OF LIMITS; CUT OUT DAMAGED AREAS OF AFT BULK CARGO DOOR SILL BS 2829.6 TO 2882.9; FABRICATED 3 EACH REPAIR FILLERS AND DOUBLERS; INSTALLED REPAIR PARTS IAW A320 SRM 51-41-99 PG 62, 103, 217-223, SRM 51-75-12 PG 4-5 AND SRM 51-21-11, PG 2-5.