As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, THE CREW RECEIVED A RT REDUCTION GEARBOX CHIP DETECTOR INDICATION AND RETURNED TO PIT. MAINTENANCE INSPECTED AND FOUND ALLOWABLE DEBRIS ON THE DETECTOR. MAINTNENANCE THEN CLEANED THE CHIP DETECTOR AND REPLACED THE FILTER IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 71-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS THEN RELEASED FOR SERVICE.