As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE INSPECTION, THE FIREWALL WAS FOUND CRACKED AT THE UPPER PART OF THE LOWER FIREWALL JUST BEHIND THE COWL MOUNT AND AT THE COWL MOUNT JUST BELOW THE BATTERY BOX. THIS DEPARTMENT HAS NOTICED THE FIREWALL IS .016 INCH THICK WHICH IS THINNER THAN FIREWALLS USED 15 YEARS AGO. THERE ARE NO DOUBLERS BEHIND THE MOUNTS TO PREVENT FLEXING OF THE FIREWALL DURING NORMAL OPERATION.