What was found
DURING HEAVY MAINTENANCE, CORROSION TRAILING EDGE UPPER SKIN LOWER AREA AT LEVEL RIB 7A ON LH WING; REF: ARM W/O 2022-67/1 N/R 2022-132414 FOUND WITHIN LIMITS IAW A320-SRM 57-21-11-283-007, TABLE 001. THIS REPAIR IS CATEGORY A, MAJOR REPAIR