As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 58 (HNL ITO)- ON CLIMB OUT, NR 1 ENG FIRE WARNING LIGHT STARTED TO FLICKER AND BELL STARTED TO RING. PULLED BACK TO IDLE CONTINUED TO FLY AT IDLE, LIGHT AND BELL WENT OUT. R & R NR1 NOSE COWL DUCT DUE TO CRACK. PERFORMED HIGH POWER ENGINE RUN LEAK AND OPS CK GOOD IAW AMM 75-11-61 PG 401. ACFT RETURNED TO SERVICE.