As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU COMPARTMENT UPPER FIREWALL CRACKS FROM FROM H-LOK LOCATED FWD, MID SECTION OF SKIN PANEL. REF AAG DEFECT CARD 2001210360-0 010 ESFR ENTRY REPAIRED AS PER ECRA 5380-01436 AND EA B757 53-20970-00-FINAL AN D BOEING REPAIR SKETCH UAL -25-0012-10C.