What was found
ETOPS SIGNIFICANT SYSTEM - AT 40,000LBS FUEL QUANTITY FUEL QNT IND STATUS ON EICAS WITH NO TOTALIZER OR LEFT FUEL QUANTITY READING (NOTE:77) SYSTEM NORMAL ON DESCENT. BITE OF FUEL QTY PROCESSOR PER FIM 28-41-00/108 FAULTS C1, C4, 53. REMOVED INOP TANK UNIT NR 3 & INSTALLED NEW TANK UNIT IAW HAL M/M 28-41-01. REMOVED AND INSPECTED LEFT WING HI-Z BUSSING PLUG IAW M/M 28-41-04-404-008-001, NO DEFECTS NOTED. PERFORMED FUEL QUANTITY BITE ON FQIS PROCESSOR WITH NO FAULTS IAW M/M 28-41-00-215-001-001.