As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON ENGINE REMOVAL, FOUND GALVANIZED PORTION OF FIREWALL DETERIORATED AND CORROSION SET IN FROM THE OUTSIDE IN. SUSPECT HIGH HEAT AREA DIRECTLY BEHIND TURBOCHARGER. RECOMMEND HEAT SHIELD MADE OF STAINLESS STEEL - BEHIND TURBOCHARGER (INSULATING COVER WAS IN PLACE AROUND THE TURBOCHARGER).