What was found
DURING HEAVY MAINTENANCE: CORROSION TE UPPER SKIN LOWER AREA SURFACE AT LEVEL RIB 7 ON RT WING; REF AEROMAN WO #2025-414/1 NR # 2025-717174, PERFORMED PERMANENT REPAIR ON TE UPPER SKIN LOWER AREA SURFACE AT LEVEL RIB 7 ON RT WING IAW EA 57-0135 -25 (COVER PART 1-9 ) FURTHER INVESTIGATION, FOUND THE CORROSION DAMAGE (PRIOR TO REPAIR) AS LEVEL 3 CORROSION DUE TO THE REMAINING THICKNESS OF THE TOP SKIN OVER THE REAR SPAR CAP BEING -50% AND NOT ABLE TO CARRY LIMIT LOADING WITH THIS REDUCTION- CREATING AN UNSAFE CONDITION.