As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON VISUAL INSPECTION, FOUND THE RIGHT ENGINE CARBURETOR HEAT AIRBOX BACKPLATE (WELD) CRACKED AT TOP LEFT ATTACH POINT. CRACK WAS FOUND NEAR TOP SUPPORT BRACKET. AIRCRAFT USED DAILY FOR FLIGHT TRAINING WITH AN AVERAGE OF 100 HOURS OF FLIGHT TIME EVERY 90 DAYS.