What was found
CREW REPORTED THAT IN FLIGHT, HEARD A LOW RUMBLING SOUND AND EQUIP COOLING EXTRACT CB POPPED AND SHORTLY AFTER GOT SMOKE AND SMELL IN COCKPIT. REPLACED AVIONICS FAN AND OPS CHECKS GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CREW REPORTED THAT IN FLIGHT, HEARD A LOW RUMBLING SOUND AND EQUIP COOLING EXTRACT CB POPPED AND SHORTLY AFTER GOT SMOKE AND SMELL IN COCKPIT. REPLACED AVIONICS FAN AND OPS CHECKS GOOD.