What was found
DURING ROUTINE C CHECK, FOUND AFT SERVICE DOOR, R-2, CUT-OUT UPPER AFT CORNER SKIN CRACKED. REMOVED CRACK. FABRICATED REPAIR PARTS, LOCATED, DRILLED, TRIMMED, TREATED, PRIMED, AND INSTALLED REPAIR PARTS IAW DC8 SRM DC8 SRM 53-2-0, 51-1-8, 51-1-21, 51-6-1 AND 51-1-20D.