What was found
ON APPROACH SELECTED GEAR DOWN ONLY THE NOSE CAME DOWN WITH A CORRESPONDING NOSE DOWN & LOCKED GREEN LIGHT INDICATION, RED UNSAFE GEAR LIGHT ILLUMINATED & BOTH MAINS WOULD NOT EXTEND. CYCLED GEAR HANDLE ONE TIME GEAR OPERATED NORMALLY ON 2ND TRY. JACKED AIRCRAFT, PERFORMED A VISUAL INSPECTION OF THE LANDING GEAR, NO FAULTS NOTED. PERFORMED THE NOSE AND MAIN LANDING GEAR EXTENSION & RETRACTION PROCEDURE IAW THE CE-560XL MM CH 32-30, ALL CHECKS WERE NORMAL. ACTUATED AND LUBRICATED ALL LANDING GEAR EXTENSION & RETRACTION SWITCHES. REMOVED AIRCRAFT FROM JACKS.