As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DESCENT PASSING THRU APPROX 15,000 FEET COCKPIT CREW SMELLED ELECTRICAL FUMES. SHORTLY AFTER THE FWD EXHAUST EQUIP COOLING FAN C/B POPPED. CREW RAN SMOKE, FUMES, FIRE, ELECTRICAL CHECKLIST. FUMES SUBSIDED AFTER C/B POPPED. C/B AND WIRING CHECK GOOD, FAN MAKING A LOT OF NOISE. REPLACED FWD EXHAUST EQUIP COOLING FAN PER M/M. OPERATION CHECKS GOOD.