What was found
AFTER TAKEOFF, THE LANDING GEAR WOULD NOT RETRACT AND THERE WAS NO EICAS MESSAGES. DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT, THE AIRCRAFT WAS GROUNDED. REPLACED LANDING GEAR CONTROL LEVER ASSEMBLY IAW AMM 32-33-01. OPS CHECKED GOOD, CYCLED GEAR TWICE, NO FAULTS NOTED IAW 32-33-00.