As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE VISIT, EXFOLIATION CORROSION FOUND ON RIGHT WING LEADING EDGE OUTBOARD OF NR 5 SLAT ACTUATOR. REPAIRED PER ECO NR 1803 R3-WING FRONT SPAR LOWER CHORD FORWARD HORIZONTAL FLANGE LOWER SURFACE CORROSION REPAIR. AIRCRAFT RETURNED TO SERVICE. (M)