What was found
NON-ETOPS FLT 206 LIH-HNL: DURING TAXI PRIOR TO TAKEOFF, THE FLIGHT CREW NOTED A BURNING SMELL AROUND ROW 18. THE BURNING SMELL SHORTLY DISSIPATED AND THE CREW CONTINUED ON WITH FLIGHT PLAN. THE AIRCRAFT LANDED IN HNL WITHOUT FURTHER INCIDENT. MAINTENANCE VISUALLY INSPECTED BEHIND PASSENGER SERVICE UNITS AND RAN AIR-CONDITIONING SYSTEM. NO FAULTS WERE NOTED BY MAINTENANCE AND THE BURNING SMELL DID NOT RETURN. AIRCRAFT WAS RETURNED FOR SERVICE.