What was found
AT CRUISE AT FL350 THE RIGHT AND TOTAL QTY INDICATIONS ARE INTERMITTENT. AT OTHER TIMES THE RIGHT QTY INDICATION FLUTUATED - 1,000 POUNDS. DIVERTED TO SIN AND MX APPLIED MEL 28-41-01-01/28-41-07-A FOUND M723 BUSSING PLUG UNIT WAS LOOSEN, RETIGHTENED THE PLUG UNIT. PERFORMED WIRING-CHECK FROM FQPU TO RH WING SPAR HARNESS CONNECTOR PER WDM 28-41-31, ALL GOOD. I.A.W FIM 28-41-00-2-1 AND AMM 28-41-08-4, PERFORMED FUEL QUANTITY BITE TEST, NO FAULT CODE SHOWN, PERFORMED FQPU RESET. MEL CLOSED. OK TO CONTINUE SERVICE.