What was found
WHILE CONDUCTING AN APPROACH ENGINE NO.1 POWER ROLLED BACK. OBSERVATIONS AND ACTIONS WERE: 1. SOUND OF ENGINE SPOOL DOWN 2. ENG.1 OUT LIGHT, FOLLOWED BY MASTER CAUTION LIGHT. 3. TQ SPLIT SHOWING ENG.1 DECREASING TOWARDS ZERO. 4. CONFIRMED ENG.1 GAUGES SHOWING LOW NG (20-30%), HIGH MGT (750+C) 5. DUE TO OUR CLOSE PROXIMITY WE ELECTED TO RETURN TO KUAO. 6. THROTTLES WERE CHECKED BOTH WERE FULLY FORWARD AND ENGINE WAS SHOWING ABNORMAL INDICATIONS WITH A CORRESPONDING ENG OUT LIGHT AND MASTER CAUTION. 7. IT WAS DECIDED TO SHUT DOWN COMPLETELY THE NO.1 ENGINE. 8. AT 7 MILES OUT PILOT PLACED AN EMERGENCY CALL INTO KUAO TOWER AND AIRCRAFT LANDED WITH NO FURTHER INCIDENT UPON INVESTIGATION, AIRLINE FOUND BROKEN.