What was found
FLT 189 - OGG - A/C DIVERTED TO KOA-OGG. NR 2 ENGINE AND A/B LOOPS AND FIRE HANDLE LIGHTS ILLUMINATED ON CLIMB. REDUCED POWER TO IDLE, LIGHTS WENT OUT. KEPT ENGINE AT IDLE AND DIVERTED TO OGG. FOUND HOLE IN 13TH STAGE BLEED AIR DUCT CAP. REPLACED CAP. CLEANED AND INSPECTED FIRE LOOP CONNECTORS. LEAK CHECK AND HIGH POWER ENGINE RUN CHECK GOOD. ALL FIRE WARNING LIGHTS REMAINED OUT. (M)