What was found
WHILE IN FOR C-CHECK, MAINTENANCE FOUND CORROSION ON AFT CARGO DOOR FWD FRAME UNDER RELEASE CABLE BRACKET. ALSO, AREA 3 ABOVE NR 3 STOP PIN FITTING. MAINTENANCE REMOVED CORRODED FRAME AND REPLACED WITH NEW FRAME IAW SRM 51-10-1, 51-10-2, 51-30-5, 51-20-4, MM 51-20-151, AND SRM 51-30-2.