What was found
DURING C1 CHECK, FOUND CORROSION AT FUSELAGE SECTION 43, CARGO DOOR SURROUND STRUCTURE, CORROSION, FWD LARGE CARGO DOOR STRUCTURE AT THE MAIN STILL FAIL-SAFE STRAP AT STA 612.AFTER BLENDED REMAINING THICKNESS IS 0.142 INCH. DAMAGED AREA WAS REPAIRED IAW EWO B767-53-026 AND MFG SERVICE REQUEST ID 1-225221220. THIS REPAIR CONSTITUTES A MAJOR REPAIR.