What was found
(CAN) CUSTOMER REPORTED THAT PILOTS HAD NR 2 ENGINE FIRE INDICATION ON SHORT FINAL. PILOTS ADVISED TOWER AND SECURED ENGINE AND LANDED SAFELY WITHOUT INCIDENT. THE PILOT PULLED BOTH FIRE HANDLES AND PASSENGERS/CREW EVACUATED THE ACFT. THE SAFETY GROUND CREW USED CLEAR WATER EXTINGUISHERS AS A PRECAUTION. PRIOR TO INTRODUCING WATER INTO ENGINE COMPARTMENT INTAKE AND EXHAUST, THERE WAS NO SMOKE OR NO FIRE/FLAMES VISIBLE. THERE WAS NO INDICATION OF FIRE IN THE COWLINGS AND THE PROPELLER IS TURNING NORMALLY BY HAND IN NORMAL FEATHER POSITION.