As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR RETURN- A/C N192GL - FLIGHT 5028 PILOTS REPORT THAT LANDING GEAR UNSAFE LIGHT WILL NOT GO OUT ON GEAR RETRACTION ON TAKEOFF AND HORN CAME ON. MAINTENANCE REMOVED AND REPLACED THE A119 PRINTED CIRCUIT BOARD PER MM 32-60-00. OPERATIONAL CHECK FLIGHT WAS PERFORMED AND WAS SATISFACTORY.