What was found
LH WING, OTBD FLAP, SUPPORT AT TRACK 3, RIB 5 AND TRACK 4, BETWEEN INNER RIB 14 AND OUTER RIB 14, WITH CORROSION INTERNAL STRUCTURE. FOR REMOVAL OF THE LH WING OUTBOARD FLAP S/N: D01703, SEE DELTA WORK CARD 2750-6020-LT. (LP: 1664687, AIRCRAFT WAS GROUNDED)