What was found
WHILE IN FOR C-CHECK, MAINTENANCE FOUND LEFT WING OUTBOARD MAIN FLAP BRACKET ON OUTBOARD EDGE IS CRACKED. REMOVED CRACKED BRACKET FROM O/B EDGE OF L/W O/B MAIN FLAP, FABRICATED NEW BRACKET AND INSTALLED. ALL WORK DONE PER SRM 51-30-01, 51-40-02, 51-20-01, AND MM 51-20-10.