What was found
LAX - FLT 2430 - EN ROUTE LAX-DFW, AFTER TAKEOFF, UNABLE OT RETRACT NOSE GEAR. RETURNED TO LAX WITHOUT FURTHER INCIDENT. FOUND NOSE GEAR SCHRADER VALVE LEAKING. REPLACED VALVE AND SERVICED NOSE GEAR. ACCOMPLISHED NOSE GEAR SWING. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)