What was found
DURING DESCENT FROM 14,000 FT, CREW DETECTED SMOKE IN COCKPIT, EMERGENCY DECLARED, LANDED AND ON ROLL OUT, CABIN BLOWER CIRCUIT BREAKER TRIPPED. DURING TROUBLESHOOTING, FOUND 20 AMP CIRCUIT BREAKER LABELED CABIN BLOWER, ALSO WAS PROTECTION FOR THE COCKPIT DEFOGGER. DEFOGGER FAN WAS DISCOVERED TO HAVE DEBRIS IN BLOWER CAUSING FAN MOTOR TO SEIZE. REPLACED MOTOR AND BLOWER ASSY, FUNCTIONAL CHECKED GOOD WITH NO MORE ODOR DETECTED. NOTE: DEFOGGER BLOWER HAD 1348.95 HOURS REMAINING.