As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TNN - DURING 1/4 D-CHECK INSPECTION ON AIRCRAFT AT AIR ASIA, SEVERE CORROSION WAS FOUND ON LT WING L/E NR 1 SLAT LOWER SKIN AROUND SCREW HEADS AT BS 421. THE CORRODED SKIN WAS CLEANED AND REPAIRED PER B727 SRM 57-50-3 FIGURE 1. REF, HANGAR NON ROUTINE REPAIR ITEM CARD NR 809362 (SEQ NR 05022) (M)