What was found
ON APPROACH LOUD NOISE HEARD THROUGHOUT A/C. L/G EXTENSION ACCOMPLISHED; AND ALTN EXTENSION UNSUCCESSFUL. WING MECHANICAL DOWNLOCK INDICATOR REMAINED FLUSH W/ WING SKIN. HYDRAULIC FLUID FROM SYSTEM 'C' COMPLETELY LOST. EMERGENCY DECLARED, UNEVENTFUL LANDING. INSPECTION REVEALED RT MLG RETRACT ACTUATOR CIRCUMFERENTIAL FRACTURE OF CYLINDER BODY LOCATED AT RETAINING RING GROOVE. END CAP SEPARATED FROM CYLINDER BODY. LONGITUDINAL CYLINDER CRACK STARTING FROM RETAINING RING GROOVE AREA ALSO FOUND. JURY BRACE FRACTURED AT THE UNIVERSAL ASSY.