What was found
DURING D-CHECK, LT WING LOWER LE SPAR CAP HAS CORROSION UPPER SURFACE 10 INCHES AND 30 INCHES O/B OF NR 3 LE SLAT ACTUATOR IN TWO PLACES. REMOVED CORROSION IAW SRM 51-10-6, MATERIAL LOSS .040 AND .050. CORROSION GRIND OUT ON UPPER SURFACE IS WITHIN LIMITS PER SRM 57-20-1. CUT OUT DAMAGED AREA AND INSTALLED REPAIR PER SRM 51-40-4. MATERIAL OF REPAIR STRAP 2024-T3 3 INCHES BY 11 INCHES. TOTAL CYCLES 29577.