What was found
CMH - FLT 211 - AFTER TAKEOFF WHEN LANDING GEAR WAS RETRACTED, NLG DID NOT RETRACT. CYCLED LANDING GEAR. FOUND NLG SCHRADER VALVE LEAKING. REPLACED SCHRADER VALVE, MFG PN B05076-2, AND SERVICED LANDING GEAR. NLG OPERATION CHECKED NORMAL. CHECK C-2D - 4-10-95 - MCI.