As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE 100-HOUR INSPECTION, LEFT HAND FORWARD DOOR POST BULKHEAD WAS FOUND CRACKED. CRACK IS APPROXIMATELY .50 INCH IN LENGTH AROUND AFT ATTACH BOLT FOR LOWER DOOR HINGE. SUBMITTER STATED 5 FOUND IN LAST 3 MONTHS. ALL AIRCRAFT ARE USED IN TRAINING/RENTAL ENVIRONMENT.