As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT ENGINE CHIP LIGHT FLICKERED JUST PRIOR TO DECENT. AC LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE CREW PULLED RT ENGINE CHIP DETECTOR AND FOUND BOLT AND LOCK RING RESTING IN CHIP DETECTOR SCREEN ENCLOSURE. REPLACED ACCESSORY GEARBOX. (NE03200407105)