ND VENT FLOAT RELIEF VALVE AT BL 12.5. UPON INSPECTION OF VALVES NOTED FWRD OUTBD VENT FLOAT VALVE AT ABS 428 TO NOT BE OPERATING SMOOTHLY. REMOVED VALVE P/N: L49700-3 S/N: 757. NOTED VALVE TO ACTUATE NORMALLY ON BENCH. RECIEVED OK AND REINSTALLED SERVICEABLE VALVE P/N: L49700-3 S/N: 757 TO ENSURE SMOOTH