What was found
AFTER TAKEOFF, GEAR WOULD NOT RETRACT. GEAR HANDLE WOULD NOT MOVE. JACKED AIRCRAFT. FOUND NLG STRUT SWITCH CAM WORN. REMOVED AND INSTALLED NEW SQUAT SWITCH CAM. VERIFIED RIGGING OF NLG SQUAT SWITCH. LANDING GEAR OPS CHECKED GOOD. DOWNJACKED AIRCRAFT. WORK DONE IAW MM 32-00-01, 32-20-00, 32-30-00, 33-30-05, AND 32-60-00.