As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING 400-HOUR INSPECTION, MECHANIC FOUND RT ELEVATOR HORN HEAT MAT CRACKED AT TIP THROUGH BLACK CASTING AND ALUM. ANTI-ICE DE-ICE SYSTEM STILL FUNCTIONING OKAY, BUT NO CRACKS ALLOWED IN PART PER BEECH 400A MANUAL. REMOVED AND REPLACED RT ELEVATOR HORN HEAT MAT.