mber 6915004123 Resolution: DRAINED Lill WING PLENUM AND NOTED THAT ABOUT 1 GALLON OF FUEL DRAINED OUT, FILLED AIRCRAFT FUEL TANKS. THEN RE DRAINED L/H PLENUM AND NOTED ABOUT 1/2 GAL OF FUEL DRAINED OUT. GAINED ACCESS TO L/H WING OUTBD VENT FLOAT VALVES AT RBS 428 AND VENT FLOAT RELIEF VALVE AT BL 12.5. U