What was found
ETOPS SIGNIFICANT SYS - AT TOP OF DESCENT, FUEL TOTALIZER READ 21.7. CALCULATED READ 18.5, A DIFFERENC OF -3.2. PERFORMED FIM 28-41-00, FIG 107, NO FAULTS NOTED ON BITE CHECK OF F/Q PROCESSOR, SHOWED NO FAULTS FMC SHOWING FUEL ON BOARD SAME AS TOTALIZER IAW FIM 34-61-00, FIG 106, SYS OPS IS OK.