As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DAILY INSPECTION DISCOVERED MISSING FASTENER IN FIREWALL BETWEEN ENGINES DISASSEMBLED FIREWALL AND FOUND FASTENER HAD PULLED THROUGH CRACKED AREA OF FIREWALL, PN L716M2162802. REPAIRED FIREWALL BY STOP DRILLING CRACKS, CUTTING AWAY CRACKED AREA AND ATTACHING LOCALLY FABRICATED PATCH OF .020" TITANIUM SHEET WITH MS20615-3M3 RIVETS. ALL WORK IAW AEC EC135 AMM AND AC 43.13-1B CHAPTER 4, SECTION 4 FIREWALL AND COWLINGS REASSEMBLED