As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE UNDERGOING AN ANNUAL INSPECTION, FOUND THE FIREWALL TO BE CRACKED ON THE LT & RT SIDE WHERE THE P/N 1250255-7 EXHAUST HANGAR BRACKETS ATTACH. THE CRACKS WERE EXTENDING OUT FROM UNDER THE HANGAR BRACKETS AND EXTENDED IN MULTIPLE DIRECTIONS. ADDITIONAL INSPECTION REVEALED THE LT BULKHEAD P/N 1253409-5 AND RT BULKHEAD P/N 1253409-6 BEHIND THE FIREWALL TO BE CRACKED IN MULTIPLE DIRECTIONS ALSO. THE BULKHEAD SECTIONS WERE REPLACED AND THE FIREWALL CRACKS WERE REPAIRED.