As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHV - DURING C-CHECK APU FIREWALL CRACKED AT 8 O'CLOCK POSITION FACING AFT ON INSIDE. MAINTENANCE REPAIRED APU FIREWALL CRACK AT 8 O'CLOCK POSITION FACING AFT ON INSIDE IAW EMB-145 SRM 53-32-13 SECTION 5 FIGURE 204. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.