What was found
(CAN) IT APPEARS SOMEONE TRIED TO UNLATCH THE UPPER CARGO DOOR WITHOUT PUSHING (ITEM #41) RELEASE KNOB TO RELEASE THE INNER HANDLE FROM THE LOCK PLATE (ITEM #46) EXCESSIVE FORCE WAS APPLIED THUS DAMAGING MECHANISM (ROLL PIN ITEM #2), WITH THIS CONDITION, IF THE INNER HANDLE WAS POSITIONED IN THE LOCK PLATE THEN THE LOCK PINS WOULD BE RETRACTED ALLOWING THE DOOR TO COME OPEN. DOOR WARNING SYSTEM CHECKED AFTER REPAIRS AND FUNCTIONED NORMALLY. PILOT REPORTED THAT DOOR WARNING LIGHT CAME ON JUST PRIOR TO OPENING.