What was found
DURING HEAVY MAINTENANCE: CORROSION TRAILING EDGE TOP SKIN LOWER SURFACE BTW RIB20 TO RIB21 ON RH WING IAW (CPCP FINDING); REF AEROMAN WO 2025-180/1 WCC#2025-298913 FOR WORK PERFORMED; PERFORMED REPAIR TRAILING EDGE TOP SKIN LOWER SURFACE BTW RIB20 TO RIB21 ON RH WING IAW A320 SRM 57-21-11-283-007. THIS REPAIR IS CATEGORY B INSPECTION THRESHOLD 144,000FC/180,000FH SUBSEQUENT INSPECTION AT INTERVALS TBD METHOD INSPECTION TBD IAW A320 SRM 57-21-11-205-008. TABLE 1 THIS REPAIR IS CONSIDERED PSE IAW A320 SRM 51-11-12. MX 220 COMPLETE. FUR COMPLETED FUR# A320-57-02320.