What was found
ELEC AC BUSS 1 FAULT ECAM, AFTER ENGINE SHUTDOWN AT GATE. ELECTRICAL ODOR AT THE SAME IN COCKPIT & FWD GALLEY. ODOR WENT AWAY IN ABOUT 5 MINUTES AFTER INITIAL ODOR. FOUND GLC1 CONTACTOR TO BE SOURCE OF ODOR. REPLACED CONTACTOR. RAN ENGINES & PACKS, NO ODOR NOTED. (LP 8774176, 1788799 - AIRCRAFT WAS GROUNDED)