What was found
DURING HEAVY MAINTENANCE: CORROSION TRAILING EDGE UPPER SKIN LOWER SURFACE OVERHANG AREA BTW RIB 17 AND RIB 18 ON RH WING; (RESOLVED ON W/O: 1200126 TASKCARD: NR-00042 ) REF AEM NR 2023-68589 FOR ALL WORK ACCOMPLISHED, REMOVED CORROSION LOC T/E RIB 18 LOWER SURFACE OVERHANG AREA ON RH WING IAW A320SRM 51-74-00, EVALUATED REWORK LOCATED ON T/E UPPER SKIN LOWER SURFACE OVERHANG AREA BTW RIB 17 AND RIB 18 ON RH WING AND FOUND WITHIN ALLOWABLE DAMAGE LIMITS, PERCENTAGE REWORK FROM ORIGINAL SKIN THICKNESS 39.5% IAW A320SRM 57-21-11-283-007 PARG 2. A FIG 3 (SHEET1) THIS REPAIR IS CAT B AND REQUIRES INSPECTION FROM EMBODIMENT REPAIR AT INTERVALS 2000 FC/40000 FH, SUBSEQUENT INSPECTION AT INTERVALS 9000FC/18000FH, DVI INSP. FUR CREATED AS FUR-A230-53-00685.