What was found
DURING TAKEOFF, THE AFT CARGO DOOR OPEN LIGHT ILLUMINATED. AIRCRAFT ABORTED TAKEOFF AT 105 KNOTS. ACCOMPLISHED COM PROCEDURE FOR HIGH ENERGY BRAKING AND AIRCRAFT CLEARED THE RUNWAY SAFELY. MAINTENANCE REPLACED THE AFT CARGO NET RETAINING PIN, RESET CARGO DOOR LIGHT, AND COMPLETED A HIGH ENERGY STOP INSPECTION. AIRCRAFT RETURNED TO SERVICE.