What was found
(CAN) DURING ROUTINE MAINTENANCE, WHEN THE EXHAUST STACKS WERE REMOVED, A PIECE OF THE EXHAUST DUCT WAS FOUND MISSING AND THE REMAINDER WAS CRACKED. MAINTENANCE INSTALLED AN IMPROVED EXHAUST DUCT ASEEMBLY AS PER SERVICE BULLETIN 1430.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) DURING ROUTINE MAINTENANCE, WHEN THE EXHAUST STACKS WERE REMOVED, A PIECE OF THE EXHAUST DUCT WAS FOUND MISSING AND THE REMAINDER WAS CRACKED. MAINTENANCE INSTALLED AN IMPROVED EXHAUST DUCT ASEEMBLY AS PER SERVICE BULLETIN 1430.