What was found
AIRCRAFT REJECTED TAKEOFF AT 80 KTS, AFT CABIN DOOR LIGHT TURNED ON. CAPTAIN REPORTED THAT DURING TAXING, LIGHT TURNED OFF AND TURNS ON AGAIN AT PLATFORM. CAPTAIN REQUESTED TO FLT ATTENDANTS TO CHECK THE DOOR, LINKING THE SLIDE BAR TURNING OFF THE LIGHT. AIRCRAFT WAS SENT TO THE HANGAR AND DURING OVERNIGHT SERVICE REJECTED TAKEOFF INSPECTION WAS PERFORMED IAW MM 05-51-14 AND DOOR CLOSING MECHANISM AND SLIDE ACTIVATION BAR WERE ADJUSTED AND LUBRICATED IAW MM 51-11-00, ALL CORRECT.