As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHV - DURING C-CHECK MAINTENANCE FOUND APU FIREWALL CRACKED AT MID RIGHT HAND SECTION (INSIDE). MAINTENANCE INSTALLED REPAIR DOUBLER ON APU FIREWALL AT MID RIGHT HAND SECTION IAW EMB 145 SRM 53-32-13 FIG 204. AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.