What was found
1) DURING GEAR RETRACTION NOSE GEAR VIBRATED AND SOUNDED LIKE THE NOSE GEAR DOOR WAS NOT CLOSED. NOSE GEAR LIGHT ON S/O'S PANEL AND DOOR LIGHT ON FRONT PANEL WAS ILLUMINATED UNTIL FL 24.0 THEN LIGHTS WENT OUT.2) UPON INSPECTION FOUND NOSE GEAR STRUT FLAT. FOUND SCHRADER VALVE LEAKING. REMOVED AND REPLACED SCHRADER VALVE AND SERVICED STRUT IAW DHL B727 M/M 12-15-24. INSPECTED NOSE GEAR AND DOORS, NO DEFECTS NOTED. TAXIED A/C AND LEAK CHECKED STRUT. NO DEFECTS NOTED THIS STATION.