What was found
AIRCRAFT GROUNDED: DURING CRUISE, NORM FUEL PANEL CONFIG FOR BURNING CENTER TANK, RT MN TANK QTY IND UP STEADILY. AT 10 LBS PER MINUTE, SHOWED UNUSUAL VALUES, FIRST 8.8, 8.9, & 9.0. HIGHEST OBSERVED WAS 9.1. AT RUNUP, RT MAIN QTY, TOTAL FUEL CONSUMPED NORM. RT MAIN IND TOPPED OUT, 9.0, NO LONGER INCREASES, TOTAL FUEL QTY WITHIN 15 MINS, FELL BELOW SEVERAL HUNDRED LBS. CHKD WING TIPS FOR VENTING FUEL, NONE. FUEL FLOW IND NORM AT 2.23 PER HR, PER ENG. FUEL BALANCED, SHUTOFF RT PUMP, CENTER TANK, & RT MAIN TANK QTY DECREASED NORM. CENTER TANK EMPTY ON SCHEDULE & WENT TO MAIN TANK. RT MAIN QTY NORM & DECREASED AT A NORM RATE. FOUND A CRACKED RT WING FUEL LINE & REPLACED IAW AMM 28-20-51-06.