What was found
DURING ACCOMPLISHMENT OF C-CHECK INSPECTION, FOUND AFT PRECONDITION AIR CONNECTOR FUSELAGE CUT OUT CRACKED. REMOVED RIVETS IN REPAIR AREA AS PER SRM 51-40-01. STOP DRILLED END OF CRACK AS PER SRM 51-10-04. FABRICATED REPAIR DOUBLER AS PER SRM 53-81-20 FIG 828. PRE-PROTECT REPAIR DOUBLER AS PER SRM 51-21-02. REPAIR CARRIED OUT AS PER SRM 53-31-00 FIG 828. LEAK CHECKED SATISFACTORY IAW MM 21-06-01, PAINT TOUCH UP CARRIED OUT IAW MM 20-51-11. FOUND DURING ACCOMPLISHMENT OF SCHEDULED C-CHECK AT GAMCO, INC. WORK CARD 57686, C-CHECK CARD 01-00-1000, NON-ROUTINE WORK CARD NR 5013.