What was found
NR 3 TANK PUMPS OFF, NR 3 TANK TIP TRAPPED FUEL, 5800 LBS IN TIP TANK IS UNUSABLE. NR 3 TANK FUEL QTY LOW. 7600 - 7200 - 7800 TIP TANK AMBER. COMPLIED WITH PRELIMINARY INSPECTION AS REQUIRED. NO DISCREPANCIES NOTED. REMOVED AND REPLACED THE RT OTBD FUEL FLOAT SWITCH IAW AMM 28-43-01-2, REV 19. OPS & LEAK CHECKED GOOD.