What was found
DURING APPROACH AT 7,000 FEET, CREW NOTED A BURNING SMELL IN COCKPIT FOLLOWED FIVE MINUTES LATER BY A VENT EXTRACT FAULT. FOLLOWED COCKPIT OPERATING MANUAL PROCEDURES, DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE AVIONICS COOLING EXTRACT FAN SEIZED. REPLACED SAME, OPERATIONAL CHECK OK.