What was found
UPON RETURNING FROM FLIGHT, PILOT COMPLAINED THE ACFT REQUIRED MORE FUEL TO FILL TANKS THAN GAUGES INDICATED. ASKED MAINT TO CHECK GAUGES FOR ACCURACY. FUEL WAS COMPLETELY DRAINED FROM A/C, AND GAUGES READ ONE-EIGHTH (LT) AND ONE-FOURTH (RT). GAUGES WERE INSTALLED IN KIT FORM (SK152-21B) ON 12-18-97, REPLACING ORIG EQUIPMENT. STEWART-WARNER SYSTEM. PROBLEM WAS FOUND AT THE WING ROOT CONNECTORS. NO APPARENT CORROSION OR DAMAGE WAS EVIDENT, SIMPLY MOVING THE CONNECTORS (WIGGLING THE 2 HALVES) VARIED THE READING ON THE FUEL GAUGES. THE CONNECTIONS WERE CLEANED, AND THE GAUGES READ NORMALLY.