What was found
FLIGHT 3752, THE CREW NOTED THAT ALL THREE GEAR DID NOT RETRACT. LT & RT MLG BANGING AGAINST UPLOCKS. MAINTENANCE INSPECTED THE LANDING GEAR, INSTALLED THE LANDING GEAR PINS, AND RELEASED THE AIRCRAFT IAW MEL. THE AIRCRAFT FLEW FROM EFD TO IAH ON 10/04/2002. MAINTENANCE REMOVED AND REPLACED THE LANDING GEAR SELECTOR, PERFORMED A OPERATIONAL CHECK OF THE LANDING GEAR SYSTEM, NO DEFECTS NOTED, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.