What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS AFTER PARKING AT GATE, RT ENGINE DID NOT SHUTDOWN WITH FUEL CONTROL SWITCH CUTOFF POSITION, RT ENGINE FUEL VALVE EICAS MESSAGE. RAN FOR ABOUT 3MIN. MAINTENANCE REMOVED, CLEANED, INSPECTED ASSOCIATED CONNECTORS IAW FIM 73-21-00, FOUND NO DISCREPANCIES. RECONNECTED CONNECTORS, CONFIRMED OPERATION OF ENGINE RUN WAS NORMAL. OK FOR SERVICE.