As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT APU FIREWALL PANEL 351BZ, FLANGE IS CRACKED AT TOP AND BOTTOM; UPPER: L=0.450" AND LWR: L= 0.300". X=28868.0. BOTH CRACKS ROUTED OUT AND NDT PERFORMED VERIFYING NO MORE CRACKING EXISTS ON WO 738419-335 IAW ETD 2011-170/01072B AND COMPASS EA E175-53-381, REV IR WO 819042.