What was found
CREW NOTICED OFFENSIVE ODOR IN COCKPIT AND CABIN. NO SMOKE WAS PRESENT. CREW ABORTED FLIGHT. MECHANIC WAS SENT TO LOCATION, ENGINES WERE RAN AND ALL POWER ON AND COULD NOT DUPLICATE PROBLEM. AIRCRAFT RETURNED TO HOME STATION AND AVIONICS FOUND THAT THE IRU BLOWER MOTOR WAS EXTREMELY HOT. WHEN MOTOR WAS REMOVED AND SHAFT TURNED ROUGH AND COULD SEIZE. MOTOR WAS REPLACED AND NO FURTHER PROBLEMS WERE ENCOUNTERED. (M)