What was found
(CAN) AIRCRAFT HAD AN ABORTED TAKEOFF AS THE RT FIRE LIGHT CAME ON. STOP AND FEATHER WAS PULLED AND PUSHED THE FIRE EXTINGUSER SWITCH ON THE DASH. THE LIGHT WAS VERY DIM YET IT WAS ON. THE FLIGHT CREW CHECKED THE ENGINE COMPARTMENT AFTER BEING CLEARED BY THE FIRE DEPARTMENT AND EVIDENCE OF A FIRE WAS TO BE FOUND. FLIGHT CREW CHECKED THE TO SEE IF THE FIRE LIGHT WAS STILL ON AND THE LIGHTS WERE OUT. THE PRESS TO TEST ALSO DID NOT CAUSE THE LIGHTS TO COME ON AND THNE FOUND THE RT FIRE EXT CB WAS POPPED. AFTER RESETTING THE CB THE FIRE LIGHT TEST WOULD ILLUMINATE WHEN PRESSED. IT WAS ALSO VERIFIED VISUALLY THAT THE FIRE BOTTLE WAS STILL HOLDING A FULL CHARGE AND DID NOT DISCHARGE. THE RT FIRE EXTINGUISHER CONTROL LOGIC AND THE FIRE EXTINGUISHER CONTROLLER WERE REPLACED DUE NO DEPLAOYMENT OF THE BOTTLE. AFTER BOTH ITEMS WERE REPLACED A GROUND RUN WAS CARRIED AND THE PILOT REPORTED NO FURTHER FAULTS WITH THE SYS.