What was found
ON TAKEOFF CLASS 1 LGCIU NR 2 FAULT. AFTER 3RD ATTEMPT TO RAISE LEVER TO UP POSITION GEAR CYCLED. AFTER CYCLING GEAR ALL WORKED NORMAL ON LGCIU NR 1. ON NEXT LEG INITIALLY COULD NOT RETRACT LANDING GEAR ON TAKEOFF. STRUT FAULT ANNUNCIATED. REMOVED AND REPLACED 24GA PROX SENSOR. INSPECTION FOUND NLG TORSION LINK APEX BOLT EXCESSIVELY TIGHT. TIGHTENED CORRECTLY, RIGHT NOSE GEAR STRUTS EXTEND SENSOR FAULTED. ADJUSTED GAP TO 80 THOUSANDTHS.