What was found
AT LEVEL OFF 330 CREW HEARD DING OF FIRE BELL. INSPECTED COCKPIT FOR LIGHTS, NONE ILLUMINATED. DID ENG FIRE TEST WITH NORMAL RESULTS. RIGHT AFTER FIRE TEST NR 1 ENG FIRE LIGHT ILLUMINATED WITH CONSTANT BELL. RAN RED TAB PROCEDURE, FIRE LIGHT WENT OUT WITH ENG SHUTDOWN. NO BOTTLE BLOWN INTO ENG. SERVICEABLE ENGINE FIRE PROTECTION CONTROL UNIT INSTALLED INTO AIRCRAFT IAW MM 26-11-000-4. ENGINE FIRE PROTECTION SYSTEM GROUND CHECKS SERVICEABLE.