As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE LEFT GEAR UNSAFE LIGHT ILLUMINATED AFTER TAKEOFF FROM ABQ. THE GEAR WAS CYCLED, BUT THE LIGHT REMAINED ON. THE FLIGHT WAS CONTINUED TO IAH WITH PUMPS IN HIGH AND WHEN GEAR WAS EXTENDED INDICATIONS WERE NORMAL. MAINTENANCE REPLACED THE OVERLINK SWITCH. THE GEAR WAS SIMULATED UP AND DOWN AND ALL INDICATIONS WERE NORMAL.