What was found
AIRCRAFT WAS GROUNDED: FLIGHT RETURNED TO MIA ON ACCOUNT OF FUEL QUANTITY DISCREPENCY. AN EMERGGENCY WAS DECLARED. PILOT RECEIVED FUEL DISAGREE LIGHT 1 HR INTO FLIGHT, SPLIT STARTED 9K AND WENT TO 22K AT LANDING. ***SUPPLEMENTAL INFORMATION: MAINTENANCE REPORTS REPROGRAMMED DIP SWITCHES AT M28008 FUEL QTY. PROGRAM SELECTOR IAW SSM 28-41-11 AND DWG 284W1284 SH3. REPLACED CENTER RIGHT TANK UNIT #8 DUE TO HIGH RESISTANCE READING. OPS CHECK OK IAW AMM 28-41-02. REPLACED FQPU. OPS CHECK OK IAW AMM 28-41-01.*** (CLOSED)