What was found
MCI - DURING OP 16 MAINTENANCE CHECK, FOUND CRACK IN MID-CARGO DOOR OUTER SKIN AND IN FRAME FLANGE ON AFT EDGE, APPROXIMATELY 1 FOOT FROM BOTTOM FRAME. HAD 1 INCH CRACK IN SKIN AND .3750 INCH CRACK. FABRICATED AND INSTALLED NEW DOUBLER PER SRM 52-05, PG 110A. ACFT TT: 43,165 HOURS. ACFT TC: 22,408. (X)