As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT NOTED A CHIP DETECTOR LIGHT IN-FLIGHT. PILOT LANDED IN BUFFALO, NY WITHOUT INCIDENT. CLEANED CHIP DETECTOR AND GROUND RAN. OPERATIONS CHECK OK. PILOT RESUMED TRIP TO MILWAUKEE WITHOUT INCIDENT. SOAP SAMPLE TAKEN AND SENT TO GARRETT-SPRINGFIELD FOR ANALYSIS.