As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FLIGHT CREW REPORTED R ELEV. HORN HEAT FAULT WITH R ELEV. CB POPPING. MAINTENANCE INVESTIGATION: FOUND R ELEVATOR HORN HEATER BURNT. REPLACED R ELEVATOR HORN. STILL INOP. FURTHER INVESTIGATION FOUND RH ELEVATOR HORN HARNESS SHORTING OUT NEAR RH ELEVATOR OUTBOARD HINGE. HARNESS REPAIRS CARRIED OUT IAW ATR 72 ELECTRICAL SPM. SUBSEQUENT OPS TESTS CARRIED OUT SUCCESSFULLY. (TC# 20190617016)