What was found
AIRCRAFT IN BASE MAINTENANCE. CORROSION ON LEFT WING OUTBOARD FLAP CENTER HINGE FITTINGS LOWER OUTBOARD MOUNT STUD BETWEEN STATION 984 AND 1007. REPLACED INBOARD UPPER MOUNT STUD PER AMM 57-40-01-201. (SEE AALA20170731001, AALA201708039018, AALA201708039019, AALA201708039021).