What was found
LEFT-SIDE FUSELAGE EXTERNAL, STA 540 BETWEEN STR21L AND STR23L HAS FASTENER & SKIN CORRODED. ACCOMPLISHED A REPAIR TO THE DAMAGE WING CENTER SECTION FORWARD LOWER SKIN PANEL STA 500 TO STA 548 BETWEEN STR-21L AND STR-23L IAW AAR-MIA-ESR-WI#2023376-13-12100 ON PAGE#3 THROUGH #15 PART#1 STEPS#2. AFTER THE ACCUMULATION OF 49,900 TOTAL FLT CYCLES, BUT BEFORE 50,000, PERFORMED AN INSPECTION OF FUSELAGE UPPER DRAG LINK ASSEMBLY BETWEEN BS 500 & 548 & STR 21L & 23L IAW PART 2 OF THE LATEST REVISION OF ECRA 5710-02930. OKAY TO DIP AFTER THE ACCUMULATION OF 49,900 TOTAL AIRCRAFT FLIGHT CYCLES, BUT BEFORE 50,000.