What was found
BWI - FLT 4941 - CREW REPORTS: SHORTLY AFTER TAKEOFF, FROM DCA TO JFK, THE FIRST OFFICER'S WINDSHIELD HEAT FAILED AND AN ELECTRICAL ODOR WAS SMELLED THROUGHOUT THE AIRCRAFT. ACFT DIVERTED TO BWI, DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. REPAIRED CHAFED WIRE IN BUNDLE ON RT ENGINE AND REPLACED RT AC GCU.