What was found
NR 4 ENGINE FIRE WARNING ACTIVATED ON CLIMBOUT. NR 4 ENGINE SHUTDOWN AND RETURNED TO LEX. MAINTENANCE INSTALLED NEW DUCT BETWEEN 12 O'CLOCK POSITION. PERFORMED ENGINE RUNS AND VERIFIED NO FIRE WARNINGS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
NR 4 ENGINE FIRE WARNING ACTIVATED ON CLIMBOUT. NR 4 ENGINE SHUTDOWN AND RETURNED TO LEX. MAINTENANCE INSTALLED NEW DUCT BETWEEN 12 O'CLOCK POSITION. PERFORMED ENGINE RUNS AND VERIFIED NO FIRE WARNINGS.