As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHL - MAINTENANCE REPORTED AN ELECTRICAL ODOR AND SMOKE IN THE COCKPIT WHILE TAXIING AIRCRAFT TO THE GATE. MAINTENANCE TROUBLESHOT THE PROBLEM TO THE NR 2 GENERATOR CONTROL UNIT (GCU). REMOVED AND REPLACED THE NR 2 GCU. RAN ENGINES. ALL SYSTEMS CHECK GOOD. NO ELECTRICAL ODOR OR SMOKE NOTED. (M)