What was found
AIRCRAFT DEPARTED SCL OPERATING FLIGHT TPA4092 (SCL-MIA) WITH A PALLET LOADED IN POSITION 41P WITH A DECLARED WEIGHT OF 1,096 KG IN THE LOAD CONTROL SYSTEM (LCS). SUBSEQUENT VERIFICATION IDENTIFIED THAT THE ACTUAL PALLET WEIGHT WAS 2,970 KG. BASED ON THE CORRECTED WEIGHT ASSESSMENT, IT WAS DETERMINED THAT THE AIRCRAFT EXCEEDED MAXIMUM RAMP WEIGHT (MRW) BY 1,428 KG AND MAXIMUM TAKEOFF WEIGHT (MTOW) BY 1,678 KG. AFTER DEPARTING SCL, THE AIRCRAFT SUBSEQUENTLY OPERATED ADDITIONAL SECTORS BEFORE THE DISCREPANCY WAS IDENTIFIED THROUGH COORDINATION BETWEEN SCL STATION PERSONNEL AND OPERATIONS. THE FLIGHT CREW REPORTED NO ABNORMAL INDICATIONS, ADVERSE HANDLING CHARACTERISTICS, OR OPERATIONAL EVENTS DURING THE AFFECTED FLIGHTS. UPON IDENTIFICATION OF THE DISCREPANCY, THE AIRCRAFT WAS GROUNDED AT SCL PENDING FURTHER EVALUATION. A CONSULTATION WAS INITIATED WITH AIRBUS UNDER CONTROL NUMBER 81807152. AIRBUS PERFORMED AN ENGINEERING ASSESSMENT AND REQUESTED SEVERAL STRUCTURAL INSPECTIONS, WHICH ARE CURRENTLY BEING CARRIED OUT.