What was found
RECEIVED GEAR DISAGREE WARNING AFTER T/O. LT AND RT MLG SHOWED UP, NLG DOWN AFTER GEAR HANDLE SELECTED UP. ALSO RECEIVED STEERING INOP CAUTION, WOW INPUT, NOSE DOOR WARNING, AND WOW OUTPUT FAIL STATUS. C/W QRH, MANUALLY EXTENDED GEAR. MANUAL RELEASE HANDLE WOULD NOT STOW. RECEIVED THREE GREEN AND RETURNED TO ORD. AFTER CLEARING RUNWAY RECEIVED HYD 3 HIGH TEMP. SELECTED 3A AND 3B OFF. TEMPS RETURNED TO NORMAL. INSPECTED ALL PROX SENSORS, WIRING AND BRACKETS NO DEFECTS NOTED. C/W NLG STRUT OIL/NITROGEN SERVICE IAW AMM 12-12-32. PERFORMED GEAR SWING.