As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB THE CREW NOTED ABNORMAL NOISE AT THE NOSE LANDING GEAR WHEN THE WAS SELECTED TO RETRACT. THE AIRCRAFT RETURNED TO IAH AND LANDED WITHOUT INCIDENT. THE NOISE WAS IDENTIFIED AS A NOSE LANDING GEAR DOOR THAT DID NOT CLOSE. MAINTENANCE REMOVED AND REPLACED THE LANDING GEAR SOLENOID VALVE, OPERATIONAL TESTED THE LANDING GEAR EXTENSION AND RETRACTION SYSTEM THE CLEARED THE DISCREPANCY.