As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A ROUTINE INSPECTION, THE FIREWALL WAS FOUND CRACKED AT THE COWL MOUNT JUST BELOW THE BATTERY BOX. THE CRACK WAS APPROXIMATELY 4 INCHES IN LENGTH. SUBMITTER STATED POSSIBLE CAUSE AS USE OF A THINNER FIREWALL AND NO LOAD BEARING SURFACE FOR THE LORD MOUNT BRACKET WHICH FLEXES AS ENGINE RUNS.