What was found
ON CLIMBOUT APPROXIMATELY 2,000 FT, NR 1 ENGINE FIRE WARNING CAME ON. DURING POWER LEVER REDUCTION LIGHT EXTINGUISHED. PERFORMED ENGINE FIRE CHECKLIST, SHUTDOWN NR 1 ENGINE, NO FIRE BOTTLES USED. NR 1 ENGINE FIRE LIGHT TESTED OK. OIL PRESSURE 15 PSI AFTER SHUTDOWN. SECURED LOOSE PNEUMATIC DUCTING AND CLEANED DIRTY CONNECTOR ON FIRE LOOP. RAN ENGINE THREE TIMES TO TAKEOFF POWER FOR 5 MINS EACH TIME WITH NO FIRE WARNING FAULT. CONFIRMED FIRE WARNING SYSTEM TEST NORMAL IAW DC8 MM 26-2-0.