What was found
IAH - FLT 3450 - CREW REPORTED RED GEAR LIGHT INDICATION AND HORN WARNING WHEN RETRACTING THE GEAR ON TAKEOFF. THE CREW CYCLED THE GEAR TWICE WITH THE SAME RESULTS AND RETURNED TO IAH WITHOUT INCIDENT. MAINTENANCE FOUND THE RIGHT POWER LEVER HORN MICROSWITCH OUT OF ADJUSTMENT. MAINTENANCE ADJUSTED THE MICROSWITCH AND PERFORMED OPERATIONAL CHECK OF THE GEAR RETRACTION. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. (M)