B777 Undifferentiated or Other Model
Flight Crew Last 90 Days 200; Flight Crew Total 36000; Flight Crew Type 4162
Situational Awareness
Aircraft Equipment Problem Less Severe; Inflight Event / Encounter Fuel Issue
Air Traffic Control Provided Assistance; Flight Crew Landed in Emergency Condition; General Maintenance Action
Aircraft
Fuel imbalance; possible fuel leak. Followed all SOPs. Informed ATC of aircraft condition and requested emergency equipment. Uneventful landing and gate arrival.  Fully debriefed with crew; dispatch; Duty Manager and Maintenance Control.
B777 Captain reported of a fuel imbalance which was caused by a possible fuel leak or malfunctioning fuel gauge. ATC was advised and a normal landing ensues.