As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FLIGHT, TRANSMISSION CHIP LIGHT ILLUMINATED. PILOT LANDED ASAP AND PERFORMED CHIP PLUG CHECK IAW THE OPS MANUAL PROCEDURE, WHILE IN COMMUNICATION WITH MAINTENANCE. UPON COMPLETION OF 30 MINUTE PENALITY RUN AND LEAK CHECK, AC WAS FLOWN. MAINTENANCE INSPECTED CHIP PLUGS AND FILTER.. METAL FOUND DURING THIS INSPECTION GROUND AC FOR TRANSMISSION CHANGE MM. (K)