What was found
ENROUTE, CREW REPORTED UNABLE TO TRANSFER FUEL FROM ACT TANK TO CENTER / WINGS. FUEL ACT TRANSFER FAULT ILLUMINATED IN FLIGHT. DECISION WAS MADE TO LAND ENROUTE, DIVERTED TO PHX. NO EMERGENCY WAS DECLARED AND FLIGHT LANDED WITHOUT INCIDENT. MAINTENANCE CORRECTED IMBALANCE AND PERFORMED TSM TASK 28-28-00-810-804-A. MAINTENANCE FOUND ACT NR 2 TUBE TO FUEL INLET VALVE INSIDE TANK DISCONNECTED AND RECONNECTED IAW ESO 34025 PAGE 7017. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK PER AMM 28-11-27.