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 ON RT SIDE 3 O'CLOCK POSITION AT END OF STIFFENER. MAINTENANCE REPAIRED APU FIREWALL RT SIDE AT 3 O'CLOCK POSITION IAW EMB 145 SRM 53-32-13 SEC 5 FIG 204. AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.