What was found
AFTER TAKEOFF MLG HANDLE SELECTED UP. NLG DID NOT RETRACT & TURNED AMBER. MLG SHOWED WHITE CROSS HATCHES & TURNED GREEN AGAIN, HANDLE STILL UP. MLG SOUNDED LIKE CONTINUING TO CYCLE. SELECTED MLG HANDLE DOWN & ALL 3 MLG TURNED GREEN. CHECK LIST & BLEW BOTTLE. RETURNED FOR NORMAL LANDING. ON INITIAL INSP NOTED HYD FLUID LEAKING FROM NLG STRUT AT RETAINER NUT AREA. REMOVED LT & RT NOSE WHEEL ASSY IAW MM 32-40-15. REMOVED NLG LOWER BARREL IAW CMM 32-20-01. REPACKED NLG STRUT, REINSTALLED LOWER BARREL ASSY IAW CMM 32-20-01. SERVICED STRUT IAW MM 12-10-52. CHECKED NLG SQUAT SWITCH & FOUND OUT OF SPEC, ADJUSTED SWITCH IAW MM 32-60-00, GEAR SWING OPS CHECKED GOOD. NO DEFECTS NOTED, SQUAT SWITCH OPS CHECKS GOOD.