As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLT 1885 - THE LANDING GEAR WOULD NOT RETRACT INITIALLY AFTER TAKEOFF. THE GEAR HANDLE RELEASE BUTTON WAS USED TO RAISE THE GEAR. MAINTENANCE INSPECTED RIG OF ANTI-RETRACTION CABLE IAW MM 32-31-01, AND FOUND NO FAULTS. A GEAR RETRACTION WAS PERFORMED WITH ALL OPERATION AND INDICATIONS CHECKING NORMAL. MAINTENANCE WAS UNABLE TO DUPLICATE THE PROBLEM. (X)