What was found
ON TAKEOFF, UNABLE TO RAISE GEAR. TAKE OFF + 20 SEC, WOW MISCOMPARE MESSAGE ILLUMINATED. THRUST REVERSERS & NOSEWHEEL STEERING WERE AVAILABLE ON LANDING. TROUBLESHOT LANDING GEAR RETRACTION PROBLEM. FOUND NOSE LANDING GEAR LOWER STRUT NITROGEN PRESSURE LOW. RESERVICED NLG STRUT WITH FLUID AND NITROGEN IAW MM 32-20-00-600. ALSO FOUND NOSE GEAR SQUAT SWITCH OUT OF RIG. RERIGGED NOSE LANDING GEAR SQUAT SWITCH IAW MM 32-60-00. NO OTHER DEFECTS NOTED. OPS & LEAK CHECKED GOOD.