As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE THE XMSN CHIP LIGHT ILLUMINATED. THE AIRCRAFT RETURNED TO THE LANDING FOR FURTHER INSPECTION, WITH NO FURTHER ISSUES. THE AFT TRANSMISSION CHIP DETECTOR WAS INSPECTED, AND CHIPS WERE NOTED. THE TRANSMISSION WAS REMOVED AND REPLACED.