What was found
DURING ROUTINE C CHECK, FOUND EXTERNAL FUSELAGE SUPPORT ANGLE CRACKED AT STATION 640 BETWEEN +X70 AND -Z35. REMOVED FASTENERS AS NEEDED TO REMOVE DAMAGED SUPPORT ANGLE. FABRICATED NEW SUPPROT ANGLE, LOCATED, DRILLED, TREATED, PRIMED, INSTALLED NEW SUPPORT ANGLE AND FASTENERS AT STATION 640 BETWEEN +X70 AND -Z35. IAW DC8 SRM 53-2-1, 51-1-20, 51-1-4, 51-1-5, AND 51-1-8.